ASME B30.10-2009 Ganchos.pdf

HooksSafety Standard for Cableways, Cranes,Derricks, Hoists, Hooks, Iacks, and Slings

AN AMERICAN NATIONAL STANDARD

Date of Issuance: January 8, 2010

The next edition of this Standard is scheduled for publication in 2015. This Standard will becomeeffective 1 year after the Date of Issuance. There will be no addenda issued to this edition.

ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations are published on the ASME Web site under the Committee Pages athttp://cstools.asme.org as they are issued, and will also published within the next edition of theStandard.

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This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input from industry, academia,regulatory agencies, and the public-at-large.ASME does not "approve," "rate," or "endorse" any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with any

items mentioned in this document, and does not undertake to insure anyone utilizing a standard against Iiability forinfringement of any appli'cable letters patent, nor assume any such Iiability. Users of acode or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement of such rights, isentirely their own responsibility.

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without the prior written permission of the publisher.

The American Society of Mechanical EngineersThree Park Avenue, New York, NY 100165990

Copyright 2010 byTHE AMERICAN SOClETYOF MECHANICAL ENGINEERS

Al! rights reservedPrinted in U.S.A.

CONTENTS

Foreword vCommittee Roster viB30 Standard Introduction viiiSurnrnary of Changes xi

Chapter 10-0 Scope, Definitions, and References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Section 10-0.1 Scope of ASME B30.10 1Section 10-0.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Section 10-0.3 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Chapter 10-1Section 10-1.1Section 10-1.2Section 10-1.3Section 10-1.4Section 10-1.5Section 10-1.6Section 10-1.7Section 10-1.8Section 10-1.9Section 10-1.10Section 10-1.11

Chapter 10-2Section 10-2.1Section 10-2.2Section 10-2.3Section 10-2.4Section 10-2.5Section 10-2.6Section 10-2.7Section 10-2.8Section 10-2.9Section 10-2.10Section 10-2.11

Figures10-1.1-110-1.1-210-1.1-310-1.1-410-1.1-510-1.1-610-1.1-710-1.1-810-1.1-910-1.1-1010-1.1-1110-1.1-1210-1.1-1310-1.1-1410-1.1-15

Hooks: Selection, Use, and Maintenance .Scope .Training .Ma terials and Components .Fabrication and Configurations .Design Factor .Rated Loads .Proof Test Requirements .Identification .Effects of Environrnent .Inspection, Removal, and Repair .Operating Practices .

Hooks - Miscellaneous: Selection, Use, and Maintenance .Scope .Training .Materials and Components .Fabrication and Configurations .Design Factor .Rated Loads .Proof Test Requirements .

, Identification .Effects of Environrnent .Inspection, Removal, and Repair .Operating Practices .

Clevis Hook .Eye Hook .Shank Hook .Duplex Hook (Sister) .Articulated Duplex Hook (Sister) .Self-Locking Eye Hook (Open) .Self-Locking Clevis Hook (Closed) .Self-Closing Bail (Eye Hook) .Self-Closing Gate Latch (Shank Hook) .Self-Closing Flapper Latch (Shank Hook) .Self-Closing Flapper Latch (Swivel Hook) .Self-Closing Flipper Latch (Eye Hook) .Self-Closing Tiplock Latch (Shank Hook) .Self-Closing Tiplock Latch (Eye Hook) .Single Plate Hook .

III

333333333345

101010101010101010101012

777778888889999

10-1.1-1610-1.1-1710-2.1-110-2.1-210-2.1-310-2.1-410-2.1-510-2.1-6

Table10-1.7-1

Laminated Plate Hook 9Quad Hook 9Eye Grab Hook 13Clevis Grab Hook 13Foundry Hook 13Sorting Hook 13Choker Hook 13Clevis Foundry Hook 13

Proof Test Load 4

iv

FOREWORD

This American National Standard, Safety Standard for Cableways, Cranes, Derricks, Hoists,Hooks, [acks, and Slings, has been developed under the procedures accredited by the AmericanNational Standards Institute (ANSI) (formerly the United States of America Standards Institute).This Standard had its beginning in December 1916when an eight-page Code of Safety Standardsfor Cranes, prepared by an ASME Cornmittee on the Protection of Industrial Workers, waspresented to the annual meeting of ASME.Meetings and discussions regarding safety on cranes, derricks, and hoists were held from 1920

to 1925, involving the ASME Safety Code Correlating Cornmittee, the Association of Iron andSteel Electrical Engineers, the American Museum of Safety, the American Engineering StandardsCornmittee (later changed to American Standards Association and subsequently to the USAStandards Institute), Department of Labor - State of New Jersey, Department of Labor andIndustry - State of Pennsylvania, and the Locomotive Crane Manufacturers Association. On[une 11, 1925, the American Engineering Standards Cornmittee approved the ASME Safety CodeCorrelating Cornmittee's recornmendation and authorized the project, with the U.S. Departmentof the Navy, Bureau of Yards and Docks, and ASME as sponsors.In March 1926, invitations were issued to 50 organizations to appoint representatives to a

Sectional Cornmittee. The call for organization of this Sectional Cornmittee was sent out October2,1926, and the cornmittee organized November 4,1926, with 57members representing 29 nationalorganizations. The Safety Code for Cranes, Derricks, and Hoists, ASA B30.2-1943, was createdfrom the eight-page document referred to in the first paragraph. This document was reaffirmedin 1952 and widely accepted as a safety standard.Due to changes in design, advancement in techniques, and general interest of labor and industry

in safety, the Sectional Cornmittee, under the joint sponsorship of ASME and the Naval FacilitiesEngineering Command, U.S. Department of the Navy, was reorganized as an American NationalStandards Committee on January 31, 1962, with 39 members representing 27 nationalorganizations.The format of the previous code was changed so that separa te standards (each complete as to

construction and installation; inspection, testing, and maintenance; and operation) would coverthe different types of equipment included in the scope of B30.In 1982, the Cornmittee was reorganized as an Accredited Organization Cornmittee, operating

under procedures developed by ASME and accredited by ANSI.This Standard presents a coordinated set of rules that may serve as a guide to government

and other regulatory bodies and municipal authorities responsible for the guarding and inspectionof the equipment falling within its scope. The suggestions leading to accident prevention aregiven both as mandatory and advisory provisions; compliance with both types may be requiredby employers of their employees.In case of practical difficulties, new developments, or unnecessary hardshp, the administrative

or regulatory authority may grant variances from the literal requirements or permit the use ofother devices or methods, but only when it is clearly evident that an equivalent degree ofprotection is thereby secured. To secure uniform application and interpretation of this Standard,administrative or regulatory authorities are urged to consult the B30 Cornmittee, in accordancewith the format described in Section IX of the B30 Standard Introduction, before renderingdecisions on disputed points.Safety codes and standards are intended to enhance public safety. Revisions result from commit-

tee consideration of factors such as technological advances, new data, and changing environmentaland industry needs. Revisions do not imply that previous editions were inadequate.This 2009 revision of this Volume of the Standard was reformatted for greater clarity and has

been rewritten in its entirety. It was approved by the B30 Cornmittee and by ASME, and wasapproved by ANSI and designated as an American National Standard on November 13, 2009.

v

ASME 830 COMMITTEESafety Standard for Cableways, Cranes, Derricl

HONORARY MEMBERS

J. W. Downs, Ir., Downs Crane and Hoist CO.J. L. Franks, ConsultantJ. M. Klibert, Lift-AII Co., Inc.R. W. Parry, Consultant

B30.10 SUBCOMMITTEE PERSONNEL

P. A. Boeckman, Chair, The Crosby GroupN. E. Andrew, Alternate, ThyssenKrupp Steel USA, LLCJ. A. Gilbert, Associated Wire Rope FabricatorS. R. Gridley, Navy Crane CenterW. T. Hargrove, QinetiQ North AmericaC. E. Lucas, The Crosby Group

E. K. Marburg, Columbus McKinnon Corp.G. L. Rammelsberg, Columbus McKinnon Corp.P. J. Novak, Alternate, Columbus McKinnon/Midland ForgeK. Sellers, Gunnebo JohnsonA. R. Toth, Morris Material HandlingP. S. Zorich, RZP International Ud.

vii

(09)

SAFETY STANDARD FOR CABLEWAYS, CRANES, DERRICKS, HOISTS,HOOKS, JACKS, AND SLlNGS

830 STANDARD INTRODUCTION

SECTION 1: SCOPE

The ASME B30 Standard contains provisions thatapply to the construction, installation, operation, inspec-tion, testing, maintenance, and use of cranes and otherlifting and material-handling related equipment. For theconvenience of the reader, the Standard has been dividedinto separate volumes. Each volume has been writtenunder the direction of the ASME B30 StandardsCornmittee and has successfully completed a consensusapproval process under the general auspices of theAmerican National Standards Institute (ANSI).As of the date of issuance of this Volume, the B30Stan-

dard comprises the following volumes:

B30.1

B30.2

B30.3B30.4B30.5B30.6B30.7B30.8B30.9B30.10B30.11B30.12B30.13

B30.14B30.15

B30.16B30.17

B30.18

B30.19B30.20B30.21B30.22

[acks, Industrial Rollers, Air Casters, andHydraulic GantriesOverhead and Gantry Cranes (Top RunningBridge, Single or Multiple Girder, TopRunning Trolley Hoist)Tower CranesPortal, Tower, and Pedestal CranesMobile and Locomotive CranesDerricksBase-Mounted Drum HoistsFloating Cranes and Floating DerricksSlings 'HooksMonorails and Underhung CranesHandling Loads Suspended From RotorcraftStorage/Retrieval (SIR) Machines andAssociated EquipmentSide Boom TractorsMobile Hydraulic Cranes(withdrawn 1982 - requirements found inlatest revision of B30.5)Overhead Hoists (Underhung)Overhead and Gantry Cranes (Top RunningBridge, Single Girder, Underhung Hoist)Stacker Cranes (Top or Under RunningBridge, Multiple Girder With Top or UnderRunning Trolley Hoist)CablewaysBelow-the-Hook Lifting DevicesManually Lever-Operated HoistsArticulating Boom Cranes

B30.23B30.24B30.25B30.26B30.27B30.28B30.29

Personnel Lifting SysternsContainer CranesScrap and Material HandlersRigging Hard wareMaterial Placement SysternsBalance Lifting Units1

Self-Erect Tower Cranes!

SECTION 11: SCOPE EXCLUSIONS

The B30Standard does not apply to track and automo-tive jacks, railway or automobile wrecking cranes, shp-board cranes, shipboard cargo-handling equipment,well-drilling derricks, skip hoists, mine hoists, truckbody hoists, car or barge pullers, conveyors, excavatingequipment, or equipment covered under the scope ofthe following standards: A10, A17, A90, A92, A120, B20,B56, and B77.

SECTION 11I: PURPOSE

The B30 Standard is intended to(a) prevent or minimize injury to workers, and other-

wise provide for the protection of life, limb, and propertyby prescribing safety requirements

(b) provide direction to manufacturers, owners,employers, users, and others concerned with, or respon-sible for, its application

(e) guide governments and other regulatory bodiesin the development, promulgation, and enforcement ofappropriate safety directives

SECTION IV: USE BY REGULATORYAGENCIES

These Volumes may be adopted in whole or in partfor governmental or regulatory use. If adopted for gov-ernmental use, the references to other national codesand standard s in the specific volumes may be changedto refer to the corresponding regulations of the govem-mental authorities.

1 These volumes are currently in the development process.

viii

SECTIONV: EFFECTIVEDATE

(a) Effective Date. The effective date of this Volume ofthe B30Standard shall be 1year after its date of issuance.Construction, installation, inspection, testing, mainte-nance, and operation of equipment manufactured andfacilities constructed after the effective date of this Vol-ume shall conform to the mandatory requirements ofthis Volume.

(b) Existing lnstallaiions. Equipment manufacturedand facilities constructed prior to the effective date ofthis Volume of the B30 Standard shall be subject to theinspection, testing, maintenance, and operation require-ments of this Standard after the effective date.It is not the intent of this Volume of the B30Standard

to require retrofitting of existing equipment. However,when an item is being modified, its performance require-ments shall be reviewed relative to the requirementswithin the current volume. The need to meet the currentrequirements shall be evaluated by a qualified personselected by the owner (user). Recommended changesshall be rnade by the owner (user) within 1 year.

SECTIONVI: REQUIREMENTS ANORECOMMENDATIONS

Requirements of this Standard are characterized byuse of the word shall. Recommendations of this Standardare characterized by the word should.

SECTIONVII: USE OF MEASUREMENT UNITS

This Standard contains SI (metric) units as well asU.S. Customary units. The values stated in U.S.Customary units are to be regarded as the standard.The SI units are a direct (soft) conversion from the USCustomary units.

SECTIONVIII: REQUESTS FOR REVISION

The B30 Standards Comrnittee will consider requestsfor revision of any of the volumes within the B30Standard. Such requests should be directed to

Secretary, B30 Standards ComrnitteeASME Codes and StandardsThree Park AvenueNew York, NY 10016-5990

Requests should be in the following format:

Volume: Cite the designation and title of thevolume.Cite the applicable edition of the volume.Cite the applicable paragraph number(s)and the relevant heading(s).Indicate the suggested revision.

Edition:Subject:

Request:

Rationale: State the rationale for the suggestedrevision.

Upon receipt by the Secretary, the request will beforwarded to the relevant B30Subcomrnittee for consid-eration and action. Correspondence will be provided tothe requester defining the actions undertaken by theB30 Standards Comrnittee.

SECTION IX: REQUESTSFOR INTERPRETATION

The B30Standards Comrnittee will render an interpre-tation of the provisions of the B30 Standard. Suchrequests should be directed to

Secretary, B30 Standards ComrnitteeASME Codes and Standard sThree Park AvenueNew York, NY 10016-5990

Requests should be in the following format:

Volume: Cite the designation and title of thevolume.Cite the applicable edition of the volume.Cite the applicable paragraph number(s)and the relevant heading(s).Phrase the question as a request for aninterpretation of a specific provision suit-able for general understanding and use,not as a request for approval of a proprie-tary design or situation. Plans or draw-ings that explain the question may besubmitted to clarify the question. How-ever, they should not contain any proprie-tary names or information.

Upon receipt by the Secretary, the request will beforwarded to the relevant B30 Subcomrnittee for a draftresponse, which will then be subject to approval by theB30 Standards Comrnittee prior to its formal issuance.Interpretations to the B30Standard will be published

in the subsequent edition of the respective volume, andwill be available online at http://cstools.asme.org.

Edition:Subject:

Question:

SECTION X: ADDITIONAL GUIDANCE

The equipment covered by the B30Standard is subjectto hazards that cannot be abated by mechanical means,but only by the exercise of intelligence, care, and corn-mon sense. It is therefore essential to have personnelinvolved in the use and operation of equipment whoare competent, careful, physically and mentally quali-fied, and trained in the proper operation of the equip-ment and the handling of loads. Serious hazards include,but are not limited to, improper or inadequate mainte-nance, overloading, dropping or slipping of the load,

ix

obstructing the free passage of the load, and using equp-ment for a purpose for which it was not intended ordesigned.The 830 Standards Committee fully realizes the

importance of proper design factors, mnimum or maxi-mum dimensions, and other limiting criteria of wirerope or chain and their fastenings, sheaves, sprockets,drums, and similar equipment covered by the standard,all of which are closely connected with safety. Sizes,strengths, and similar criteria are dependent on manydifferent factors, often varying with the installation anduses. These factors depend on

(a) the condition of the equipment or material

(b) the loads(e) the acceleration or speed of the ropes, chains,

sheaves, sprockets, or drums(d) the type of attachments(e) the number, size, and arrangement of sheaves or

other parts(f) environmental conditions causing corrosion or

wear(g) many variables that must be considered in each

individual caseThe requirements and recommendations provided in

the volumes must be interpreted accordingly, and judg-ment used in determining their application.

x

ASME 830.10-2009SUMMARV OF CHANGES

Following approval by the ASME B30 Comnttee and ASME, and after public review, ASMEB30.10-2009 was approved by the American National Standards Institute on November 13, 2009.

ASME B30.10-2009 includes the following changes identified by a margin note, (09).

Page Location Change

viii-x B30 Standard Introduction Updated

1,2 Chapter 10-0 Revised in its entirety

3-9 Chapter 10-1 Revised in its entirety

10-13 Chapter 10-2 Revised in its entirety

SPECIAL NOTE:

The interpretations to ASME B30.10 are included in this edition as a separate section for theuser's convenience.

xi

ASME B30.10-2009

HOOKS

Chapter 10-0Scope, Definitions, and References

SECTION 10-0.1: SCOPE OF ASME 830.10

Volume B30.1Oincludes provisions that apply to thefabrication, attachment, use, inspection, and mainte-nance of hooks shown in Chapters 10-1 and 10-2 usedfor lifting and load handling purposes, in conjunctionwith equipment described in other volumes of the B30Standard. Hooks supporting a load in the base (bowl/saddle or pinhole) of the hook are covered in Chapter10-1. Hooks that may be loaded in other than the base(bowl/saddle or pinhole) are covered in Chapter 10-2.

SECTION 10-0.2: DEFINITIONS

abnormal operating conditions: environmental conditionsthat are unfavorable, harrnful, or detrimental to or forthe use of a hook.

crack: a crevice-type discontinuity in the material.

design jactor: ratio between nominal or mnimum break-ing strength and rated load of the hook.

designated person: a person selected or assigned by theemployer or the employer's representative as being com-petent to perform specific duties.

hook, self-closing: a hook with a throat opening that isclosed by a spring-loaded latch, gate, or bail that ismanually opened for Ioading and closes upon release.It may be locked in the closed position (see Figs. 10-1.1-8through 10-1.1-14).

hook, selj-locking: a hook with a throat opening that willclose and lock when a load is applied, and will not openuntil unloaded and the lock released (see Figs. 10-1.1-6and 10-1.1-7).

latch: a mechanical device used to close the throat open-ing of a hook (see Figs. 10-1.1-1 through 10-1.1-5 and10-1.1-17). A rigging aid, not intended to support theloado

load: the total force or weight imposed on the hook.

load, proof the specific load applied in performance ofthe proof test.

(09)

load, rated: the maximum allowable working loado Theterms rated capacity and working load limit are commonlyused to describe rated loado

mouse: a method to close the throat opening of a hookusing a device such as rope, wire, or other suitablemeans.

nick or gouge: sharp notch in hook surface that may actas stress riser in the area of the notch.

qualified person: a person who, by possession of a recog-nized degree in an applicable field or certifica te of pro-fessional standing, or who by extensive knowledge,training, and experience, has successfully demonstratedthe ability to solve problems relating to the subject mat-ter and work.

rated load identification: actual rated load information ora designation provided by the manufacturer for gradeand type or size to allow determination of hook ratedloado

service, heavy: service that involves operating at85% to 100% of rated load as a regular specifiedprocedure.

service, normal: service that involves operating at lessthan 85% of rated load except for isolated instances.

service, severe: heavy service coupled with abnormaloperating conditions.

test, nondestructive: a test that does not destroy the func-tional use of the hook, such as but not limited to dye-penetrant test, magnetic particle test, radiography test,and ultrasonic test.

test, proof a nondestructive load test made to verify themanufacturing integrity of the hook.

SECTION 10-0.3: REFERENCES

The following is a list of publications that referencethis Volume.

ASME B30.2, Overhead and Gantry Cranes (TopRunning Bridge, Single or Multiple Girder, TopRunning Trolley Hoist)

1

ASME B30.102009

ASME B30.3, Tower CranesASME B30.4, Portal, Tower, and Pedestal CranesASME B30.5, Mobile and Locomotive CranesASME B30.6, DerricksASME B30.8, Floating Cranes and Floating DerricksASME B30.9, SlingsASME B30.11, Monorails and Underhung CranesASME B30.14, Side Boom TractorsASME B30.16, Overhead Hoists (Underhung)ASME B30.17, Overhead and Gantry Cranes (TopRunning Bridge, Single Girder, Underhung Hoist)

ASME B30.19, CablewaysASME B30.21, Manually Lever Operated HoistsASME B30.22, Articula ting Boom CranesASME B30.24, Container CranesASME B30.26, Rigging HardwarePublisher: The American Society of MechanicalEngineers (ASME), Three Park Avenue, New York,NY 10016-5990;Order Department: 22 Law Drive, P.O.Box 2300, Fairfield, NJ 07007 (www.asme.org)

2

ASME B30.102009

Chapter 10-1Hooks: Selection, Use, and Maintenance

SECTION 10-1.1: SCOPE

This Chapter applies to all hooks specifically shownin Figs. 10-1.1-1 through 10-1.1-17 that support the loadin the base (bowlj saddle or pinhole - see Figs. 10-1.1-3and 10-1.1-4) of the hook.

SECTION 10-1.2: TRAINING

Hook users shall be trained in the selection, inspec-tion, cautions to personnel, effects of environment, andrigging practices, as covered by this Chapter and othervolumes of the B30 Standard, where hooks are used, aslisted in section 10-0.3.

SECTION 10-1.3: MATERIALSANO COMPONENTS

(a) The hook material shall have sufficient ductilityto permanently deform before losing the ability to sup-port the load at the temperatures at which the specifichook will be used.

(b) The hook and hook securing device shall be ofsufficient strength and design factor for the rated loadand application.

(e) When a latch is provided, it shall be designed toretain such items as, but not lirnited to, slings and rigginghardware under slack rigging conditions only. The latchis not intended to support the loado

(d) Attachments, such as handles, latch supports, etc.,shall not be welded to a finished hook in field applica-tions. If welding of an attachment such as these is re-quired, it shall be done in manufacturing or fabricationprior to any required final heat treatrnent.

SECTlON 10-1.4: FABRICATIONANOCONFIGURATIONS

(a) Hooks shall be forged, cast, stamped or welded,and heat treated by the manufacturero

(b) Shank hook securing devices shall have threador shank diameter and length as recornmended by themanufacturer or qualified persono

SECTION 10-1.5: OESIGN FACTOR

The hook shall be designed to withstand all stressesimposed under normal operating conditions while han-dling loads within the rated loado Hook design factor

(09)

shall, as a minimum, conform to those specified for theequipment or system in which the hook is a component.

SECTION 10-1.6: RATEOLOAOSRated load shall be in accordance with the require-

ments as defined for the equipment or system in whichthe hook is being utilized.

SECTION 10-1.7: PROOFTEST REQUIREMENTS(a) When proof tests are used to verify manufacturing

process, material, or configuration, the hooks shalI beable to withstand the proof load application withoutpermanent deformation when the load is applied. Thiscondition shall be considered to have been satisfied ifthe permanent increase in the throat opening does notexceed 1% or 0.02 in. (0.5 rnm), whichever is greater.For such tests, Table 10-1.7-1 states the proof loads thatshall be applied to a hook having a rated load capacity.

(b) For a duplex (sister) hook having a pinhole, theproof load for the pinhole shall be in accordance withTable 10-1.7-1. The proof load on the hook shall beshared equally between the two prongs of a sister hook,unless designed for unbalanced loading.

(e) For a quad hook, the proof load shall be in accor-dance with Table 10-1.7-1. The application of the proofload shall be determined by the manufacturer or a quali-fied persono

(d) Performance testing of component hooks shall notbe required except where necessary to conform to therequirements of the equipment or system.

SECTION 10-1.8: IOENTIFICATIONManufacturer's identification and rated load identifi-

cation shall be forged, cast, or die stamped on a lowstress and nonwearing area of the hook. Altemately, ifthe hook is used in conjunction with equipment de-scribed in other volumes of the B30Standard, the equip-ment manufacturer's identification and rated load iden-tification shall be forged, cast, or die stamped on a low-stress and nonwearing area of the hook.

SECTION 10-1.9: EFFECTSOF ENVIRONMENT10-1.9.1 TemperatureWhen hooks are to be used at temperatures above

400F (204C) or below -40F (-40C), the hook manu-facturer or a qualified person should be consulted.

3

ASME 830.102009

Table 10-1.7-1 Proof Test Load

Rated load Proof load, Min.

Tons Rated Tons(2,000 lb) kg load, % (2,000 lb) kN

0.50 453.6 200 1 8.91 907.2 200 2 17.85 4536 200 10 89

10 9072 200 20 17815 13 608 200 30 267

20 18144 200 40 35625 22 680 200 50 44530 27216 200 60 53435 31752 200 70 62340 36288 200 80 712

45 40824 200 90 80150 45360 200 100 89060 54432 193 116 1 032.575 68040 183 137 1219

100 90720 166 166 1477

125 113 400 150 188 1673150 136080 133 200 1780175 158 760 133 233 2074200 181440 133 266 2367250 226800 133 333 2964

300 272 160 133 399 3551350 317520 133 465 4139400 362880 133 532 4735450 408240 133 598 5322500 453600 133 665 5919

Above 500 > 453600 133

GENERALNOTES:(a) 1 ton (short, 2,000 lb) = 8.9 kN (unit of force).(b) For hooks with rated loads not shown in the above table, use

the next lower rating for determining the percent of rated loadto be applied as a proof loado

10-1.9.2 Chemically Active Environments

The strength of hooks can be affected by chemicallyactive environments such as caustic or acid substancesor fumes. The hook manufacturer or a qualified personshould be consulted before hooks are used in chemicallyactive environments.

SECTION 10-1.10: INSPECTION, REMOVAL, ANOREPAIR

10-1.10.1 Inspection

Inspection procedure and record keeping require-ments for hooks in regular service shall be governed bythe kind of equipment in which they are used. Whenmore stringent requirements for hooks are stated in stan-dards for the specific equipment, they shall take prece-dence over the following. Otherwise, there shall be an

initial inspection, and two general classifications basedupon intervals at which examination shall be performed.The classifications are herein designated as initial, fre-quent, and periodic, with intervals between examina-tions defined as follows.

10-1.10.2 Initiallnspection

Prior to use, all new, altered, modified, or repairedhooks shall be inspected by a designated person to verifycompliance with the applicable provisions of thisVolume. Written records are not required.

10-1.10.3 Frequent Inspection

(a) Frequent inspections shall include observationsduring operation. A visual inspection shall be performedby the user or designated person for conditions listedin para. 10-1.10.5.

(b) A designated person shall determine whether con-ditions found during the inspection constitute a hazardand whether a more detailed inspection is required.

(e) Semipermanent and inaccessible locations wherefrequent inspections are not feasible shall have periodicinspections performed, at a frequency as determined bya qualified persono

(d) The inspection intervals should be based on(1) frequency of hook use(2) severity of service conditions(3) nature of lifts being made(4) experience gained on the service life of hooks

used in similar circumstances(5) guidelines for the time intervals are

(a) normal service - monthly(b) heavy service - weekIy to monthly(e) severe service - daily to weekIy

(e) Conditions such as those listed in para. 10-1.10.5or any other condition that may result in a hazard shallcause the hook to be removed from service. Hooks shallnot be returned to service until approved by a qualifiedpersono

(j) Written records are not required.

10-1.10.4 Periodic Inspection

(a) A complete inspection of the hook shall be per-formed by a designated persono

NOTE: Some disassembly may be required.

The hook shall be examined for conditions such asthose listed in para. 10-1.10.5 and a determination madeas to whether they constitute a hazard.

(b) Periodic Inspection Frequency. Periodic inspectionintervals shall not exceed 1 yr except as approved bya qualified persono The inspection intervals should bebased on

(1) frequency of hook use(2) severity of service conditions(3) nature of lifts being made

4

ASME 830.10-2009

(4) experience gained on the service life of hooksused in similar circumstances

(5) guidelines for the time intervals are(a) normal service - yearly with equipment in

place(b) heavy service - semiannually, with equip-

ment in place unless external conditions indica te thatdisassembly should be done to permit detailed inspec-tion monthly to quarterly

(e) severe service - quarterly, as in heavy service[see para. 10-1.10.4(b)(5)(b)], except that the detailed in-spection may show the need for a nondestructive typeof testing

(e) Hooks shall not be returned to service until ap-proved by a qualified persono

(d) Written records are required.

10-1.10.5 Removal CriteriaHooks shall be removed from service if damage such

as the following is visible and shall only be returned toservice when approved by a qualified person:

(a) missing or illegible hook manufacturer's identifi-cation or secondary manufacturer's identification

(b) missing or illegible rated load identification(e) excessive pitting or corrosion(d) cracks, nicks, or gouges(e) wear - any wear exceeding 10% (or as recom-

mended by the manufacturer) of the original sectiondimension of the hook or its load pin(j) deformation - any visibly apparent bend or twist

from the plane of the unbent hook(g) throat opening - any distortion causing an in-

crease in throat opening of 5% not to exceed ~ in. (6 rnm)(or as recornmended by the manufacturer)

(h) inability to lock - any self-lockng hook that doesnotlock

() inoperative latch (if required) - any damagedlatch or malfunctioning latch that does not close thehook's throat

(j) damaged, missing, or malfunctioning hook attach-ment and securing me~

(k) thread wear, damage, or corrosion(l) evidence of excessive heat exposure or unautho-

rized welding(m) evidence of unauthorized alterations such as

drilling, machining, grinding, or other modifications

10-1.10.6 Repairs and Modifications(a) Any conditions disclosed by the inspections per-

formed in accordance with the requirements ofpara. 10-1.10.3 or 10-1.10.4 shall be corrected by repairor replacement before continuing to use the hook. Allrepairs and modifications shall be approved by the man-ufacturer or a qualified persono

(b) Hooks having damage or wear described as fol-lows shall be repaired or replaced:

(1) cracks, nicks, and gouges. Repair of cracks,nicks, and gouges shall be carried out by a designatedperson by grinding longitudinally, following the con-tour of the hook, provided no dimension is reducedmore than 10% (or as recommended by the rnanufac-turer) of its original value.

(2) wear exceeding 10% (or as recornmended bythe manufacturer) of the original sectional dimension.

(3) any visibly apparent bend or twist from theplane of the unbent hook.

(4) any distortion causing an increase in throatopening of 5%, not to exceed ~ in. (6 rnm) (or as recom-mended by the manufacturer).

(5) inability of self-lockng hooks to lock.(e) A hook latch that is inoperative shall be repaired,

replaced, or removed if not required.(d) If a required latch is inoperable and cannot be

irnmediately repaired or replaced, the hook shall be suf-ficiently moused to retain loose items as defined inpara. 1O-1.3(c)until the latch is repaired or replaced.

(e) When reassembling shank hooks, original secur-ing methods or manufacturer's recornmendations shallbe followed.

(j) AlI replacement parts shall be at least equal to theoriginal manufacturer's specifications.

(g) Hooks without provision for latches may bemoused to retain loose items as defined in para. 10-1.3(c).

(h) For special lifting applications where the throatopening is required to be closed, mousing may be usedin place of the latch to retain loose items as defined inpara. 1O-1.3(c),when approved by a qualified persono

SECTION 10-1.11: OPERATING PRACTICES

10-1.11.1 Single-Point Hooks

Personnel using hooks shall be aware of the following:(a) It shall be deterrnined that the weight of the load

to be lifted does not exceed the lesser of the load ratingof the hook or the load rating of the equipment of whichthe hook is a part.

(b) Shock loading should be avoided.(e) Load shall be centered in the base (bowl/saddle)

of the hook to prevent point loading of the hook.(d) When multileg slings are placed in base (bowl/

saddle) of the hook, the maximum included angle be-tween sling legs shall be 90 deg, or as determined byhook manufacturero The maximum sling leg angle withrespect to the hook centerline for any rigging arrange-ment shall be 45 deg.

(e) A collector ring, such as a link or shackle, shouldbe used when more than two legs are placed in a hookor for angles greater than 45 deg.(j) Hooks shall not be used in such a manner as to

place a side load, back load, or tip load on the hook.

5

ASME 830.102009

(g) When using a device to close the throat openingof the hook, care shall be taken that the load is notcarried by the closing device.

(h) Hands, fingers, and body shal! be kept from be-tween hook and loado

(i) The use of a hook with a latch does not precludethe inadvertent detachment of a slack sling or a loadfrom the hook. Hook latches aid in the retention of looseslings under slack rigging conditions only and are notintended to be antifouling devices during lifting or rig-ging. Visual verification of proper hook engagement isrequired in al! cases.

(j) Self-Iocking hooks shall be locked during use.(k) When a latch is equipped with a lock open device

to facilitate rigging, the latch sha11 be closed duringoperation.

(1) When a hook is equipped with a latch, the loadshall not restrict the closure of the latch.

(m) The need for a latch or mousing on any hook isa function of the application of the hook and sha11bedetermined by a qualified persono

10-1.11.2 Duplex and Quad Hooks

Personnel using hooks shall be aware of the following:(a) Duplex (sister) hooks shall be loaded equally on

both sides unless the hook is specifically designed forsingle-point loading. When using an articulated duplex(sister) hook (see Fig. 10-1.1-5), care should be takenbecause articulation of the hook may cause instabilityin the slung loado

(b) lf the duplex (sister) hook is loaded at the pinholeinstead of at the two saddles, the load applied shal! notexceed the rated load that would normally be sharedby the two saddles or the rated load of the supportingequipment.

(e) Quad hook lifting shall be done with al! prongsloaded and rigged to balance prong forces. Hook manu-facturer or qualified person shall be consulted for two-prong and unbalanced-prong loading.

(d) Hooks shall not be used in such a manner as toplace a side load, back load, or tip load on the hook.

(e) When using a device to close the throat openingof the hook, care sha11 be taken that the load is notcarried by the closing device.(j) Hands, fingers, and body sha11be kept from be-

tween hook and loado(g) The use of a hook with a latch does not preclude

the inadvertent detachment of a slack sling or a loadfrom the hook. Hook latches aid in the retention of looseslings under slack rigging conditions onlyand are notintended to be antifouling devices during lifting or rig-ging. Visual verification of proper hook engagement isrequired in a11cases.

(h) When a latch is equipped with a lock open deviceto facilita te rigging, the latch sha11 be closed duringoperation.

(i) When a hook is equipped with a latch, the loadsha11not restrict the closure of the latch.

(j) The need for a latch or mousing on any hook is afunction of the application of the hook and sha11 bedetermined by a qualified persono

6

ASME B30.10-2009

Fig. 10-1.1-1 Clevis Hook (Latch - When Required)

Fig. 10-1.1-4 Duplex Hook (Sister)(Hole for Pin Is Optional) (Latch - When Required)

Point or tip

Fig. 10-1.1-2 Eye Hook (Latch - When Required)

Fig. 10-1.1-5 Articulated Duplex Hook (Sister)(Hole for Pin Is Optional) (Latch - When Required)

Throatopening

Fig. 10-1.1-3 Shank Hook (Latch - When Required)

Heel

,--+--f-Base(Bowl!saddle)

GENERALNOTE: The shape ofthe bowl ofthe hook shall be designedsuch that an unbalanced load positioned directly beneath the pivotpoint will not allow sling (load attachment) to be dislodged.

7

ASME B30.10-2009

Fig. 10-1.1-6 Self-Locking Eye Hook (Open) Fig. 10-1.1-9 Self-Closing Gate Latch (Shank Hook)

Fig. 10-1.1-10 Self-Closing Flapper Latch (ShankHook)

Fig. 10-1.1-7 Self-Locking Clevis Hook (Closed)

Fig. 10-1.1-11 Self-Closing Flapper Latch (SwivelHook)

Fig. 10-1.1-8 Self-Closing Bail (Eye Hook)

8

ASME B30.102009

Fig. 10-1.1-12 Self-Closing Flipper Latch (Eye Hook) Fig.10-1.1-15 Single Plate Hook

Fig. 10-1.1-13 Self-Closing Tiplock Latch (ShankHook) Fig. 10-1.1-16 Laminated Plate Hook

Fig. 10-1.1-14 Self-Closing Tiplock Latch (Eye Hook)Fig. 10-1.1-17 Quad Hook (Latch - When Required)

9

ASME 830.10-2009

(09) Chapter 10-2Hooks - Miscellaneous: Selection, Use, and Maintenance

SECTION10-2.1: SCOPE

This Chapter applies to all hooks specifically shownin Figs. 10-2.1-1 through 10-2.1-6 that do not support aload in a direct-pull configuration, such as grab hooks,foundry hooks, sorting hooks, and choker hooks.

SECTION10-2.2: TRAINING

Hook users sha11be trained in the selection, inspec-tion, cautions to personnel, effects of environment, andrigging practices, as covered by this Chapter and othervolumes of the B30 Standard, where hooks are used, aslisted in section 10-0.3.

SECTION10-2.3: MATERIALSANO COMPONENTS

(a) The hook material shall have sufficient ductilityto permanently deform before losing the ability to sup-port the load at the temperatures at which the specifichook will be used.

(b) The hook and hook securing device sha11 be ofsufficient strength and design factor for the rated loadand application.

(e) When a latch is provided, it sha11be designed toretain such iterns as, but not limited to, slings and chainsunder slack rigging conditions only. The latch is notintended to support the loado

(d) Attachments, such as handles, latch supports, etc.,shall not be welded to a finished hook in field applica-tions. If welding of an attachment such as these isrequired, it sha11be done in manufacturing or fabricationprior to any required final heat treatrnent.

SECTION10-2.4: FABRICATIONANOCONFIGURATIONS

Hooks shall be forged, cast, stamped, or welded andheat treated by the manufacturero

SECTION10-2.5: OESIGN FACTOR

The hook sha11be designed to withstand a11stressesimposed under normal operating conditions while han-dling loads within the rated loado Hook design factorshall, as a minimum, conform to those specified for theequipment or system in which the hook is a component.

SECTION 10-2.6: RATEOLOAOSRated load shall be in accordance with the require-

ments as defined for the equipment or system in whichthe hook is being utilized.

SECTION 10-2.7: PROOFTEST REQUIREMENTSPerformance testing of hooks shall not be required

except where necessary to conform to the requirementsfor the equipment of which they are a part.

SECTION 10-2.8: IDENTIFICATIONManufacturer's identification and rated load identifi-

cation sha11be forged, cast, or die stamped on a low-stress and nonwearing area of the hook. Altemately, ifthe hook is used in conjunction with equipmentdescribed in other volumes of the B30 Standard, theequipment manufacturer's identification and rated loadidentification shall be forged, cast, or die stamped on alow-stress and nonwearing area of the hook.

SECTION 10-2.9: EFFECTSOF ENVIRONMENT10-2.9.1 TemperatureWhen hooks are to be used at temperatures above

400F (204C) or below -40F (-40C), the hook manu-facturer or a qualified person should be consulted.

10-2.9.2 ChemicaUyActive EnvironmentsThe strength of hooks can be affected by chemica11y

active environments such as caustic or acid substancesor fumes. The hook manufacturer or a qualified personshould be consulted before hooks are used in chemica11yactive environments.

SECTION 10-2.10: INSPECTION, REMOVAL,ANOREPAIR

10-2.10.1 InspectionInspection procedure and record keeping require-

ments for hooks in regular service sha11be govemed bythe kind of equipment in which they are used. Whenmore-stringent requirements for hooks are stated in stan-dards for the specific equipment, they sha11take prece-dence over the following. Otherwise, there shall be aninitial inspection, and two general classifications based

10

L

ASME 830.10-2009

upon intervals at which examination shall be performed.The classifications are herein designated as initial, fre-quent, and periodic, with intervals between examina-tions defined as follows.

10-2.10.2 Initiallnspection

Prior to use, all new, altered, modified, or repairedhooks shall be inspected by a designa ted person to verifycompliance with the applicable provisions of thisVolume. Written records are not required.

10-2.10.3 Frequent Inspection

(a) Frequent inspections shall include observationsduring operation. A visual inspection shall be performedby the user or designated person for conditions listedin para. 10-2.10.5.

(b) A designa ted person shall determine whether con-ditions found during the inspection constitute a hazardand whether a more-detailed inspection is required.

(e) Semipermanent and inaccessible locations wherefrequent inspections are not feasible shall have periodicinspections performed, at a frequency as determined bya qualified persono

(d) The inspection intervals should be based on(1) frequency of hook use(2) severity of service conditions(3) nature of lifts being made(4) experience gained on the service life of hooks

used in similar circurnstances(5) guidelines for the time intervals are

(a) normal service - monthly(b) heavy service - weekly to monthly(e) severe service - daily to weekly

(e) Conditions such as those listed in para. 10-2.10.5or any other condition that may result in a hazard shallcause the hook to be removed from service. Hooks shallnot be returned to service until approved by a qualifiedpersono

if) Written records are not required.

10-2.10.4 Periodic Inspection

(a) A complete inspection of the hook shall be per-formed by a designated persono

NOTE: Some disassembly may be required.

The hook shall be examined for conditions such asthose listed in para. 10-2.10.5 and a determination madeas to whether they constitute a hazard.

(b) Periodic Inspection Frequency. Periodic inspectionintervals shall not exceed 1 yr except as approved bya qualified persono The inspection intervals should bebased on

(1) frequency of hook use(2) severity of service conditions(3) nature of lifts being made

(4) experience gained on the service life of hooksused in similar circumstances

(5) guidelines for the time intervals are(a) normal service - yearly with equipment in

place(b) heavy service - serniannually, with equip-

ment in place unless external conditions indica te thatdisassembly should be done to permit detailed inspec-tion monthly to quarterly

(e) severe service - quarterly, as in heavy service[see para. 10-2.10.4(b )(5)(b)], except that the detailedinspection may show the need for a nondestructive typeof testing

(e) Hooks shall not be returned to service untilapproved by a qualified persono

(d) Written records are required.

10-2.10.5 Removal CriteriaHooks shall be removed from service if damage such

as the following is visible and shall only be returned toservice when approved by a qualified person:

(a) missing or illegible hook manufacturer's identifi-cation or secondary manufacturer's identification

(b) missing or illegible rated load identification(e) excessive pitting or corrosion(d) cracks, nicks, or gouges(e) wear - any wear exceeding 10% (or as recom-

mended by the manufacturer) of the original sectiondimension of the hook or its load pinif) deformation - any visibly apparent bend or twist

from the plane of the unbent hook(g) throat opening - any distortion causing an

increase in throat opening of 5% not to exceed ~ in.(6 rnm) (or as recommended by the manufacturer)

(h) inability to lock - any self-locking hook that doesnotlock

(i) inoperative latch (if provided) - any damagedlatch or malfunctioning latch that does not close thehook's throat

(j) damaged, missing, or malfunctioning hook attach-ment and securing means

(k) thread wear, damage, or corrosion(l) evidence of excessive heat exposure or unautho-

rized welding(m) evidence of unauthorized alterations such as

drilling, machining, grinding, or other modifications

10-2.10.6 Repairs and Modifications(a) Any conditions disclosed by the inspections per-

formed in accordance with the requirements ofpara. 10-2.10.3 or 10-2.10.4 shall be corrected by repairor replacement before continuing to use the hook. Allrepairs and modifications shall be approved by the man-ufacturer or a qualified persono

(b) Hooks having damage or wear described as fol-lows shall be repaired or replaced:

11

r

ASME B30.10-2009

(1) cracks, nicks, and gouges. Repair of cracks,nicks, and gouges shall be carried out by a designatedperson by grinding longitudinally, following the contourof the hook, provided no dimension is reduced morethan 10% (or as recommended by the manufacturer) ofits original value.

(2) wear exceeding 10% (or as recommended by themanufacturer) of the original sectional dimension.

(3) any visibly apparent bend or twist from theplane of the unbent hook.

(4) any distortion causing an in crease in throatopening of 5%, not to exceed ~ in. (6 mm) (or as recom-mended by the manufacturer).

(5) inability of self-locking hooks to lock.(e) A hook latch that is inoperative shall be repaired,

replaced, or removed if not required.(d) If a required latch is inoperable and cannot be

immediately repaired or replaced, the hook shall be suf-ficiently moused to retain loose items as defined inpara. 10-2.3(c) until the latch is repaired or replaced.

(e) When reassembling hooks, original securing meth-ods or manufacturer's recommendations shall befollowed.

(f) All replacement parts shall be at least equal to theoriginal manufacturer's specifications.

(g) Hooks without provision for latches may bemoused to retain loose items as defined in para. 1O-2.3(c).

(h) For special lifting applications where the throatopening is required to be closed, mousing may be usedin place of the latch to retain loose items as defined inpara. 10-2.3(c), when approved by a qualified persono

SECTION 10-2.11: OPERATINGPRACTICES

Personnel using miscellaneous hooks shall be awareof the following:

(a) It shall be determined that the load or forcerequired does not exceed the rated load of the hook'sassembly, especially when special conditions, such aschoking or grabbing, are considered.

(b) Shock loading should be avoided.(e) A hook shall not be used in a manner other than

that for which it is intended.(d) Hands, fingers, and body shall be kept away from

between the load and the hook.(e) When using a device to close the throat opening

of the hook, care shall be taken that the load is notcarried by the closing device.(j) The use of a hook with a latch does not preclude

the inadvertent detachment of a slack sling or a loadfrom the hook. Hook latches aid in the retention of looseslings under slack rigging conditions only, and are notintended to be antifouling devices during lifting or rig-ging. Visual verification of proper hook engagement isrequired in a11cases.

(g) When a latch is equipped with a lock open device,the latch shall be closed during operation.

(h) When a hook is equipped with a latch, the loadshall not restrict the closure of the latch.

(i) The need for a latch or mousing on any hook is afunction of the application of the hook and shall bedetermined by a qualified persono

12

ASME B30.10-2009

Fig. 10-2.1-1 EyeGrab Hook

Fig. 10-2.1-2 Clevis Grab Hook

Load pin

Fig. 10-2.1-4 Sorting Hook

Fig. 10-2.1-5 Choker Hook

Fig. 10-2.1-6 Clevis FoundryHook

Fig. 10-2.1-3 FoundryHook

13

ASME B30.10-2009 INTERPRETATIONS

ASME 830.10-2009 INTERPRETATIONS

Replies to Technicallnquirieslune 2005 Through [une 2009

FOREWORDThis publication includes all of the written replies issued between the indicated dates by the

Secretary, speaking for the ASME B30 Standard s Cornmittee, Safety Standard for Cableways,Cranes, Derricks, Hoists, Hooks, [acks, and Slings, to inquiries concerning interpretations oftechnical aspects of ASME B30.10, Hooks.These replies are taken verbatim from the originalletters except for a few minor typographical

and editorial corrections made for the purpose of improved clarity. In some few instances, areview of the interpretation revealed a need for corrections of a technical nature; in these cases,a corrected interpretation follows irnmediately after the original reply.These interpretations were prepared in accordance with the accredited ASME procedures.

ASME procedures provide for reconsideration of these interpretations when or if additionalinformation is available that the inquirer believes might affect the interpretation. Further, personsaggrieved by an interpretation may appeal to the cognizant ASME Cornmittee or Subcornmittee.ASME does not "approve," "certify," "rate," or "endorse" any item, construction, proprietarydevice, or activity.

t-i

ASME B30.10-2009 INTERPRETATIONS

Interpretation: 10-16

Subject: ASME B30.1O-1999,ASME B30.16-2003, and ASME B30.21-1999

Date Issued: [une 22, 2005

Question: Are the hooks supplied as an integral part of a hoist that do not have the hookmanufacturer's identification on the hooks (as required by B30.10, para. 10-1.1.1) acceptable asmeeting the requirements of ASME B30.16 and ASME B30.21?

Reply: YesoASME B30.16-2003 and ASME B30.21-1999 do not require hooks to be marked withthe manufacturer's identification.


Subject: ASME B30.10-2005, Fig. 1, Clevis Sling Hook, and Fig. 18, Clevis Grab Hook

Date Issued: February 18, 2009

Question: Are load pins with cotter pins now an allowed device for overhead lifting?

Reply: ASME B30.10 does not prohibit the use of load pins with cotter pins for overhead lifting.


Subject: ASME B30.10-1999 and ASME B30.10-2005, Para. 10-0.2, Definitions, and Para. 10-1.3,Operating Practices

Date Issued: June 29, 2009

Background: Under Section 10-0.2, Definitions:

hook, self-closing: a hook with a throat opening that is closed by a sprng-loaded latch, gate, orbail that is manually opened for loading and closes upon release. It may be locked in the closedposition.

Question (1): Is this definition saying that the closing means must be a spring?

Reply (1): Yes, the spring device is required.

Question (2): Is an alternate means such as gravity acting on a counterweight appropriate forthe closing means?

Reply (2): No, the reliance on gravity alone to close the latch does not meet the requirementsof the definition.

Background: Under Section 10-1.3, Operating Practices:(k) When a lock is equipped with a latch, the latch should not be restrained from closing

during use.

Question (3): Can the latch have a feature to pin it in an open position just for purposes ofinstalling slings onto the hook? During lifting of the load, this pin is removed and the latch isautomatically closed.

Reply (3): YesoParagraph (k) allows devices that can be used to hold the latch open duringinstallation of slings.

r-z

ASME 830.10-2009 INTERPRETATlONS


Subject: ASME B30.10-2005, Para. 10-1.1.2

Date Issued: June 29, 2009

Question: Has this ruling been changed or is it still the choice of the user to use or not use alatch?

Reply: It is not within the scope of ASME B30 to interpret OSHA rulings. ASME B30.10,Hooksaddresses the functionality and the inspections requirements, but does not define when latchesshall be used on hooks.

1-3

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