VT Procedure

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COSNTRUCTORA HOSTOTIPAQUILLO, S.A. DE C.V.

QUALITY CONTROL DEPARTMENT

QUALITY INSPECTION PROCEDURE (QIP)

VISUAL EXAMINATION PROCEDURE


CHANGES AND/OR MODIFICATIONS

REVISION MODIFIED

PAGESDESCRIPTION OF CHANGE DATE

1 3 ILLUMINATION REQUIREMENTS MAY 13/11

2 ALLEDITORIAL CHANGES, NEW FORM VT-01 AND QCM

APPROVALFEB 16/1

NAME SIGN/DATE POSITION

PREPARED AND

APPROVED BY QCM

ACCEPTED BYAUTHORI!ED INSPECTOR

Procedure No.

HOSTO-QIP-01

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INDEX

1. SCOPE

2. REFERENCE CODES

3. DIRECT VISUAL EXAMINATION

4. REMOTE VISUAL EXAMINATION

5. REQUIERED ILLUMINATION

6. SURFACE PREPARATION

7. WELD INSPECTION

8. ACCEPTANCE CRITERIA

9. REPORTS

10. PERSONNEL QUALIFICATION CERTIFICATION

11. RECERTIFICATION OF PERSONNEL

12. CERTIFICATION OF PROCEDURE

13. ATTAC!MENTS

Procedure No.

HOSTO-QIP-01








1.0 SCOPE

This document prescribes the minimum requirements for all visual inspection for Power Piping and

Parts.

2.0 REFERENCE CODES

2.1 !"# $%1.1

2.2 !"# &'(# !#&T. )

3.0 DIRECT VISUAL EXAMINATION

(irect visual e*amination ma+ be made when are accesses to the surface to be e*amined, and at an

angle not less than %- deg to the surface to be e*amined. "irrors ma+ be used to improve the angle of vision, and aids such as a magnif+ing lens ma+ be used to assist e*aminations.

4.0 REMOTE VISUAL EXAMINATION

Remote techniques ma+ be emplo+ed when difficult access maes direct e*amination impractical.

Remote visual e*aminations ma+ be performed b+ use of mirrors, telescopes, borescopes, fiber optics,cameras, or an+ other suitable instruments. /hen remote s+stems are necessar+, the apparatus shall

have a demonstrated resolution capabilit+ at least equivalent to that obtained b+ direct visual

e*amination.

5.0 REQUIRED ILLUMINATION

Pipe weld component sub0ected to the e*amination ma+ be illuminated an+ means. The minimum light

intensit+ at the e*amination surface site shall be 1-- footcandles 1--- lu*3.

6.0 SURFACE PREPARATION

!urfaces to be e*amined shall be in as welded condition provided the inherent surface condition will

not interferes whit the detection of those discontinuities intended to be revealed b+ the visual

e*amination. 4f surface conditions are not conducive to the proper performance of the e*aminations the

Procedure No.

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appropriate steps should be taen to attain a surface condition that will facilitate a proper visual

e*amination.

7.0 WELD INSPECTION

ll welds shall be visuall+ inspected for compliance whit the applicable welding procedure and

drawing specifications, and &ode requirements.

"inimum visual inspection of welds shall be including the following items5

.a3 !i7e of legs and throat of fillet welds.

.b3 &ontour and finish of outside surface of welds.

.c3 &ontour and surface condition of inside surface where possible

.d3 8ndercutting and overlap.

"#$% #vidence of miss9handling.

"#&% #*cessive center punching or other impression maring.

"#'% #*cessive grinding.

.h3 &racing and porosit+.

(uring evaluation, a light with two batteries si7e shall be used at distance of 12:.

8.0 ACCEPTANCE CRITERIA.

The acceptance criteria will be as required b+ !"# $%1.1. The following indications are

unacceptable5

;.a3 &racs 9e*ternal surface9<

;.b3 8ndercut on surface which is greater than 1%2: 1mm3 deep<

;.c3 /eld reinforcement greater than the specified on Table 12.=.2 on !"# $%1.1<

;.d3 >ac of fusion on surface<

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;.e3 4ncomplete penetration applies onl+ when inside is readil+ accessible3<

;.f3 n+ other linear indication greater than %16: ?mm3 long<

;.g3 !urface porosit+ with rounded indications having dimensions greater than %16: ?mm3

or four or more rounded indications separated b+ 116: 2mm3 or less edge to edge in

an+ direction. Rounded indications are indications which are circular or elliptical withtheir length less than three times their width.

9.0 REPORTS.

@.1 )erification of this e*amination shall be documented on the 4&> #*amination, Test and 4nspection

&hec >ist3.

@.2 4f required, an additional report shall be generated containing the following information as a

minimum5

@.2 a3 The date of the e*amination<

@.2 b3 Procedure identification and revision used<

@.2 c3 Technique used<

@.2 d3 Results of the e*amination<

@.2 e3 #*amination personnel identit+, and, when required b+ the referencing &ode !ection,qualification level<

@.2 f3 4dentification of the part or component e*amined<

@.2 g3 4llumination source<

@.2 h3 'ther instruments and equipment<

@.2 i3 Results of the e*amination certified b+ the e*aminer.

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10.0 PERSONNEL QUALIFICATION CERTIFICATION.

1-.1 Personnel who perform visual e*aminations shall be qualified and certified to the following

minimum requirements5

1-.1.1 ll inspectors shall be required to pass a vision test. This vision test shall be repeated annuall+.

n+ corrective aids used during this test shall natural or corrected near distance acuit+ such thatthe+ are capable of reading standard AaegerBs A91 test or equivalent for near vision.

1-.1.2 ; hours of instruction in the fundamentals of visual e*amination and this procedure.

1-.1.% ; hours on the 0ob training.

1-.1.= 8pon completion of the instructional time and satisfactor+ performance during on the 0obtraining period, the trainee must successfull+ complete a written e*amination and perform a

proper demonstration of the procedure designed to verif+ the trainee is capable of e*ecuting

the required and interpreting the results.

11.0 RECERTIFICATION OF PERSONNEL

Personnel who have not performed visual e*aminations as described in the written procedure for a

period of 1 +ear or more must be recertified b+ successfull+ meeting the requirements of the preceding

paragraph 1-.1.% and 1-.1.=.

12.0 CERTIFICATION OF PROCEDURE

Cereb+ certif+ that this procedure has meat all the requirements of !"# &ode $%1.1.

13.0 ATTAC!MENTS

• FORM VT"01

Procedure No.

HOSTO-QIP-01


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