Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 10553-1 (1983): Requirements for chlorination equipment,Part I: General guidelines for chlorination plantsincluding handling, storage and safety of chlorinecylinders and drums [CED 24: Public Health Engineering.]

IS : 10553(Part I) - 1983(Reaffirmed 2007)

Indian StandardREQUIREMENTS FOR CHLORINATION

EQUIPMENT

PART 1 GENERAL GUIDELINES FOR CHLORINATIONPLANTS INCLUDING HANDLING, STORAGE AND

SAFETY OF CHLORINE CYLINDERS AND DRUMS

Third Reprint OCTOBER 2008(Including Amendment No.1)

UDC 628.162.84: 621.642.02: 661.41

© Copyright 1983

BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Gr 3 August 1983

IS : 10553( Part 1 ) • 1983

Indian StandardREQUIREMENTS F'OR CHLORINATION

EQUIPMENT

PART 1 GENERAL GUIDELINES FOR CHLORINATIONPLANTS INCLUDING HANDLING. STORAGE ANDSAFETY OF CHLORINE CYLINDERS AND DRUMS

Public Health Engineering Equipment Sectional Committee,BDC40

Chairman

DR B. B. SUNt)ARfSAN

Repre,H:lllillK

National Environmental Engineering ResearchInstitute ( CSIR ), Nagpur

Calcutta Metropolitan Development Authority,Calcutta

MiniC\try of Works & Housing, New Delhi

Gco-Mi Her & Co, Calcutta

Directorate General of Technical Development,New Delhi

Engineers India Limited, New DelhiDepartment of Health, Government of West

Bengal, CalcuttaSHRI T. N. CHAr, TERJEE ( Alternate )

CHIEF ENGINEER ( WATER) Municipal Corporation of Delhi, DelhiSHRr JAr NARAIN ( Alternate )

SHRID.K.CHOUDHVRYSHRI D. R. MALL ( Alternate )

SHRI S. K. DASQUPTA

Members

SHRI R. PARAMASIVAM ( Alternate toDr Bo B. Sundaresan )

ADVISER ( PHE )DR S. R. SUKLA ( Alternate)

SHRI S. V. BOPARIJIKAR

SHRIR.C.P.CU'\UUHARYCHIEf ENulNEER

SHRI S. J. DUTTA ( Alternate )Dv Ml'NICIPAL CO~IMISSIONER Municipal Corporation of Greater Bombay,

BombayHYDRAULIC ENGINEER ( Alternate J )CHIBF ENGINEER ( SeWERA(iE )

" Alternate II )SHRI B. R. N. GUPTA Englneer-ln-Chiefs Branch, Army Headquarters,

New DelhiSHRI K. V. KRfSHNAMURTHY

( Alternate )( Continued on poge 2 )

@ Copyri,ht 1983

BloREAl' OF I~DIA~ ST,\SDARDSThis publication is protected under the Indtan Copyright Act ( XIV of 1957 ) andreproduction in wholeor iii part by any means except with written permission of thepUblisher shall be deemed to be an infringementof copyri,ht under the said Act.

IS t 10553( Part 1 ) • 1983

( Continued from pale 1 )

REPRISENTA.T1VB

SHRIV. VARDARAJAN

Memb6r,SaRI S. P. JAMII

Public Health Enajncerin, Department, Govern­ment of MadhyaPradesh, Bhopal

Madras Metropolitan Water Supply aodSeweraleBoard, Madras

SHRI S. DAIVAMt\NI ( Alterllate )SRRI O. RAMAN, Director General, lSI ( Ex-officlo Mem/),f )

Director ( Civ En.a )

DR O. K. KHARB ( Alternat«)SaRI S. S. SRIVASTAVA Uttar PradeshJal Nipm, LucknowSHItI S. A. SWAMY The Institution of El1Iineers ( India ), CalcuttaSHRI P. S. TSNDOLKAR Candy Filters ( India) Ltd, Bombay

SH.I C. L. SA.STRI ( Alternate )SHRI M. G. VAiDYA

R,pfeltntllll

Local Administration " Social Welfare ( F )Departmoat, Trivandrum

SRal a. KIUSHNAlWAMY TamilNadu Water Supply" DraiDaae Board,Madras

SHRI S. A. JAODESAN ( Altefnate )SHRI M. Y. MADAN The Hindustan ConstructionCo Ltd, Bombay

SaRI C. B.S. RAO ( Alternate)SHRI S. R. MAJUMDAR PatersonEnlineerina Co ( India) Ltd, CalcuttaSaal A. R. MIR Public Health Enaineerlna Department,Govern-

ment of Jammu &. Kashmir.SrinaaarSHRIO. M. KANTH ( Alternate)

SHRr S. S. NArK Hydraulic: " General Engineers Pvt Ltd, BombaySHRI D. R. KBNKRB ( Alternate)

SaRI R. NATARAJAN HindustanDorr-OJiver Ltd, BombaySHRI B. M. RAHUL ( Alternate)

SKal M. M. PATEL Indian Water WorksAssociation, BombayPROPS. SUBRA RAO AU India Institute of Hy,iene & Public Health,

CalcuttaSRRI A. V. RAO ( Alternate)

REPRBSBNTATIVE PublicHealth EDlineerina Department,Govern.ment of Punjab, Chandi.arh

Public Health Enajocerin. Department, Govern­mentof Maryana, Chandiaarh

SHRI K. K. OANDHI ( Alternate )SHItI T. P. SHARMA M. P. State Prevention and Control of Water

Pollution Board,Bhopal

SecretarySHRI A. K. AVASTHY

AssistantDirector ( Civ Ena ), lSI

Water Treatment Equipment Subcommittee, DDC 40 : 1CDnvener

SHaI JId NAilAIN Indian Waler WorksAssociation, BombayM,mJ.rsSHRI K. R. SAHU ( Alt,rnnlt to

Shri Jai Narain )( Con,IliUM Oil ,til. 9 )

2

AMENDMENT NO. 1 JULY 1988

TO

IS:I0553(Part 1)-1983 REQUIREMENTS FORCHLORINATION EQUIPMENT

PART 1 CENERAL GUIDELINES FOR CHLORINATIONPLANTS INCLUDING HANDLING, STORAGE AND SAFETY

OF CHLORINE CYLINDERS AND DRUMS

(Page 8, clause 5.10.1) - Delete.

(BDC 40)

IS , 10553 ( Pari 1 ) • 1'83

Indian StandardREQUIRBMENTS FOR CHLORINATION

EQUIPMENT

PART 1 GENERAL GUIDELINES FOR CHLORINATIONPLANTS INCLUDING, HANDLING STORAGE ANDSAFETY OF CHLORINE CYLINDERS AND DRUMS

o. FO R E W 0 R D

0.1 This Indian Standard ( Part 1 ) was adopted by the Indian StandardsInstitution on 31 May 1983. after the draft finalized by the Public HealthEngineering Equipment Sectional Committee had been approved by theCivil Engineering Division Council.

0.2 Chlorine cylinders and drums with liquid chlorine can rapture attemperatures of over 70°C due to building up of internal pressure. Chlorinegas damages the lungs and attacks the mucous membranes. Therefore,special precautions are required to be observed when working withchlorine gas apparatus and chlorine containers.

0.3 In the formulation of this standard due weightage has been given tointernational co-ordination among the standards and practices prevailingin different countries in addition to relating it to the practices in the fieldin this country.

0.4 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value. observed or calculated. express­ing the result of a test or analysis, shan be rounded otT in accordance withIS : 2·1960·. The number of significant places retained in the rounded offvalue should be the same as that of the specified value in this standard.

I. SCOPE

l.t This standard (Part I ) covers recommendations for installation ofchlorination plants including handling and storage of cylinders and drums.

*Rulesfor roundiftl off' numerical values( r~vis~(/ ).

3

IS I 105S3 ( Part 1 ) • 1983

2. INSTALLATION

2.1 CblorlaadoD EqalpmeDt aDd Coatainer Room

2.1.1 Chlorine gas units and cylinders shall be housed in separate rooms,easily accessible, close to the point of application and convenient for truckloading and safe container handling. The floor shall be flat and at leastISO mm above the surrounding ground and drainage shall be adequate.The height of the container room should be at least 4·0 m. Under nocircumstances such units shall be housed in basement or below groundlevel since the chlorine gas is heavy and settles into depressions.

2.1.2 The exits shall lead directly out in tbe open and the doors shallopen outward. The hinges of the doors should be of parliamentary type.At least two exits shall be provided in each such rooms.

%.1.3 Adequate arrangements for air circulation and cross ventilationshall be made in the rooms. Air entry shall be from above and air exitshall be from below. Exhaust fans shall be provided at floor level.

NOTB - The blade and the motor (totally enclosed) of the exhaust fan shalJresist corrosion by chlorine.

2.1.3.1 Natural ventilation and means of cross ventilation that allowsan air change in approximate 10 minutes is desirable. For small installa­tion, provision of ventilator openings at the bottom, one opposite theother is adequate.

2.1.3.% Separate and reasonably gas tight enclosers openings to the out­door shall be provided for housing the chlorine feeding equipment in largeinstallations ( where tonne containers are used). These enclosers shall bevented to the upper atmosphere and equipped with positive means ofexhaust ( near the floor level, at the centre of the room or opposite to theentrance) capable of a complete air change within 2 to 4 minutes in anemergency. A satisfactory ventilation scheme involves a. combination offresh air and exhaust system, consisting of fans that force the fresh air intothe encloser through openings near the ceiling with exhaust fans to clearaway any chlorine contaminated air near the floor level. The design orexhaust system shall not include the natural ventilation that may beavailable.

2.1.4 Rooms for chlorine containers in which more than 200 kg chlorineis stored shall be separated from the chlorine gas apparatus room andshall be accessible only from outside.

2.1.5 Containers shall rest securely on cradles or on a level rack equippedwith adequate safety block to prevent rolling and be slishtly elevated fromthe floor to keep them dry.

4

IS I 10553 ( Part 1 ) • 1'83

2.1.6 The temperature in the installation room shall be within the rangeof +4 to + 40°C. The chlorine gas containers and chlorine gas pipes shallnot be exposed to direct heat radiations and shall be protected fromsun rays.

2.1.7 Electrical installations inside the chlorine gas rooms shall be limitedto the absolute minimum required. While laying electrical wiring andfixtures adequate safety precautions shall be observed during their instal­lation of ensuring safe use of electricity (see IS: 732-1963· andIS : S216-1969t ).

NOTE - RegidPVC conduits should be preferred.

2.].8 The following information shall be indicated prominantly on theoutside entry door:

"Chlorine gas dosing apparatus room""Smoking and handling naked flame prohibited"

"Admission restricted".

3. HANDLING

3.1 Ordinarily a plant labourer can handle up to tOO-kg cylinder whenaided by small hand cart. Heavy containers shall be handled with the aimof mechanical contrivance, such as trucks, monorails, cranes or other suchequipment.

3.2 Chlorine gas containers shall not be bumped, dropped or rolled onthe ground and no object shall be allowed to strike them with force.

3.3 Use of mechanical lifting devices is recommended. For lifting onetonne container, the capacity of the mechanical device should be about 2tonnes.

4. STORAGE

4.1 All plants, particularly small ones, should keep on hand at all timessufficient supply of chlorine cylinders or drums.

4.2 Special consideration shall be given to requirements of monsoonseasons.

-Code of practice for electricalwiriD. installations( systemvoltale not ex~inl650 volts ) ( '.'11.'. ).

touidr forsarell Ploceduros and practices in electrical works.

5

IS I 10553 ( Part 1 ) • In3

4.3 Cylinders shall conform to IS: 7681-1975· and the provisions ofIS : 8198 { Part 6 )-1979t for filling, inspection, testing, maintenance anduse of containers for storage and transportation of liquefied chlorine incylinders shall be observed.

4.4 Cylinders shall be stored vertically so that a leaking container, iffound, can be removed with the least possible handling of others. Tonnecontainers shall be stored on the sides all the time horizontally withsuitable rollers or saddles.

4.5 Tonne containers are equipped with two valves each with an internaleduction pipe. A removable hood is provided to protect the valves frominjury during shipment and handling. In placing tonne containers inposition for use, the two valves shall be in vertical alignment. Theeduction pipes then permit the upper valve to discharge gas and thelower valve liquid chlorine.

4.6 No other objects except chlorine gas storing containers shall be keptin the room.

5. SAnTY

5.1 All operating and storing rooms for chlorine gas appliances andcontainen shall be fire proof.

5.2 Chlorine storage rooms should preferably be provided with chlorinegas alarm device which gives out an acoustic or an optical signal whenthe chlorine gas concentration is reached, the set value for which is 1·0 rngchlorine per cubic metre of air in case of a person working in the roomand 20 mg chlorine per cubic metre of air when no human being is insidethe room.

S.2.1 The sensor for alarm device shall be.placed not higher than 300 mmabove the floors of the room. '

5.3' A bottle of ammonia is essential to detect leaks, etc, in case alarmdevice is not provided.

5.3.1 Cylinder as well as chlorine shall be tested at every shift period forleaks, first by trying to detect the sharp irritating smell of chlorine, thenby passing over each cylinder and around each valve and pipe connections,a rod with a small cotton-wool swab tied on the end, dipped in an aqueous

*S,eeification for welded lowcarbon steelps cylinders for chIorinelas.tCode of practice for steel cylinders for compressed lales: Part 6 Liquefied chlorine

ps.

6

IS I 10553( Part 1 ) • 1983

solution of ammonia. If chlorine is present in the air, the swab will appearto smoke due to formation of white cloud of ammonium chlorine. If theleak appears to be heavy, all persons not directly concerned should leavethe area and the operator should put on his mask and make a thoroughsearch of the leak.

NOTE - In tracin. a leak, always work down-streamthat is start at the cylinderand work down~donl the line of flow untit the leak is found.

5.4 Safety equipment, like gas masks, rubber gloves, aprons shall behoused in easily accessible (unlocked) cupboard placed outside thechlorination room.

NOTS - Faulty las mask is worsethan none at all. Hence theseshall be testedfrequently and canisters shall bechanlcd at proper intervals.

5.5 First aid box and eye wash fountain shall be provided outsidechlorinator room.

5.6 The provisions shall be made for emergency disposal of chlorine fromleaking containers. The proportions of alkali and water recommended forthis purpose are given in Table 1.

TABLE I RECOMMENDED ALKALINE SOLUTIONS FORABSORBING CHLORINE

CONTAINER CAUSTIC SODA SODA ASH HVDRATBD LIMECAPACITY r ~ \ ,-----A---~ r----.A .,

l00~~ Water kS Water kg Waterk. kl I I45 S7 180 136 450 57 S7067 85 275 204 680 85 850

1 000 lIS 3640 2272 9090 115 1 150

NOTB - Whenchlarine is to be absorbed in hydrated lime, the soJutioD shouldbe continuously and yi,Oro\lsly alitated.

5.7 Water shall never be applied to the chlorine leak to stop it, as it willonly make it worse.

5.8 When a chlorine leak occurs, the ventilation system should be operatedimmediately before any person enters the chlorination room.

NOTS - Ventilation.ystem should be coDtroJled from outside.

5.' The exhaust pipe of the apparatus shall lead to the open through theshortest path and the outlet of this exhaust pipe shall not be readilyaccessible.

7

IS : 105S3 ( Part 1 ) - 1983

5.10 In case of firc, the cylinders and drums containing chlorine shall beprotected by spraying with water since the containers can burst attemperatures of over 70°C. Source of pressurized water shall be providedadjacent to the chlorination room.

5.tO.1 Fusible plug, a safety device, shall be provided over all cylinders andcontainers designed to melt or soften bctwecn 70 to 75°C to preclude abuildup of hydrostatic pressure resulting from thermal expansion due tofire and other hazardous conditions.

S.ll Before disconnecting the flexible leads from containers to gas headers,the cylinder valves should be closed first and then the gas under pressureshould be drawn from the header and flexible leads before the headervalve is closed.

5.12 Solvents. such as petroleum, hydrocarbons or alcohols should notbe used for cleaning parts which come in contact with chlorine. The safesolvents are chloroform or carbon tetrachloride. Grease should never beused where it comes in contact with chlorine.

5.13 No direct flame should be applied to the chlorine cylinder whenheating becomes necessary.

5.14 The protective hood over the valve should always be kept in placeexcept when the cylinders arc in usc.

S.IS In addition to this, the relevant provisions of IS : 4263-1967* shanalso he observed as fur as applicable.

·Code of safety for chlorine.

a

IS I 10553 ( Put 1 ) • 1983

R.pr~semin,Clear Water Ltd, New DelhiVisvesvaraya Regional College of Ensineeriol.

NalPur

DR It. P. MATHURBaal N. W. MJRCHANDANISlIM K. MOHANSHN S. S. NA1K

DR S. M. DHA8AOOAONXAR( Alt.rnDt. )

SOl D. K. CHOUDHURY Geo-Miller '" Co Pvt Ltd, CalcuttaStlRI A. K. MAZUMDAR ( Ahernat« )

8"'1 M. M DATTA Central PubJic Health and EnvironmentalEngineering Organization, New Delhi

DR. I. RADHAKRISHNAN ( Alternate ) .SaRI k. GOVINDAN NAIR Public Health Engineering Department,

TrivandrumUniversityof Roorkee, RoorkeeMunicipal Corporation of Greater BombayEngineers India Ltd. New DelhiHydraulic & General Engineers (P) Ltd,

Bombay

(COIII/IIlled/rOnl fJQ6_ 2 )

M_mb.rs5aRr R.. R. BAGRrDR A. G. BaoLS

IInlI D. R. KSNKRE ( Alternate )SHIll". NAT.RAJAN Hindustan Dorr-Oliver Ltd, Bombay

SMaI B. M. RAHUL ( Alternate) .SHIlIIl. PARAMASIVAM National Bnvironmental Engineering Research

Institute. NagpurSaR.I N. G. SWARANKAR ( Alternate )

SKat N. RAMACHANDRAN Ion Exchange ( India) Ltd, Bombay_I A. M. JOSHI ( Alternate )SHU C. B. S. RAO The Hindustan Construction Co ltd, BombaySaRI C. L. SASTRI Candy Filters ( India) Ltd, BombaySHa. Y. SATYAMURTHI EIMCQ·KCP Ltd, Madras

SllRI T. SU8RAHMANYAM ( Alternate )SaRi S. S. SRIVASTAVA Uttar Pradesh Jal Nigam, lucknowPROf S. SUBBA RAO All India Institute of Hygiene & Public Health.

CalcuttaSIlRI K. J. NATH ( Alternate )

9

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