1552 NTERNATIONAL STANDARD TSO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION -MEKYHAPOAHA OPTAHW3ALMA IIO CTAHIAPTW3ALIWM.ORGANISATION INTERNATIONALE DE NORMALISATION Liquid chlorine for industrial use - Method of sampling (for determining only the volumetric chlorine content) Chlore liquide ausage industriel-Methode d'echantillonnage (en vue uniquement de la determination dutitrevolumetriqueenchlore) First edition - 1976-04-15 ANs!Inteat Don Sec: ISO 1552-1976 (E) UDC 661.41 : 543.05 Ref.No. ISO 1552-1976 (E) Descriptors : liquefied gases, chlorine, sampling, determination of content, volumetric analysis. Price based on 6 pages FOREWORD Iso (the International Organization for Standardization) is a worldwide federation of nationat standards institutes (Iso Member Bodies). The work of developing International Standards is carried out through ISo Technical Committees. Every Member Body interested in a subject forwhich a Technical Committeehas been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with iso, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the Iso Council. Priorto1972,theresuitsof theworkof theTechnical Committeeswerepublished asisORecommendations;thesedocumentsarenowintheprocessofbeingtrans formed into International Standards. As part of this process, Technical Committee ISO/TC 47 has reviewed ISO Recommendation R 1552 and found it technically suitable for transformation. International Standard ISO 1552 therefore replaces IS0 Recommendation R 1552-1970 to which it is technically identical. ISO Recommendation R 1552 was approved by the Member Bodies of the following countries : Austria India Romania Belgium Iran South Africa, Rep. of Colombia Israel Spain Cuba Italy Switzerland Czechoslovakia Korea,Rep.of Thailand Egypt, Arab Rep. of Netherlands Turkey France NewZealand United Kingdom Germany Poland U.S.S.R. Hungary Portugal No Member Body expressed disapproval of the Recommendation. No Member Body disapproved the transformation of ISO/R 1552 into an Inter- nationa! Standard. @ International Organization for Standardization, 1976 Printed in Switzerland ISO1552-1976 (E) INTERNATIONALSTANDARD Liquid chlorine for industrial use - Method of sampling (for determining only the volumetric chlorine content) 1SCOPE 4 PRINCIPLE This International Standard specifies a method of sampling A check that the equipment used is gas-tight. liquid chiorine forindustrial use,witha view to The collection of two representative samples in steel bottles determining only the volumetric chlorine content. during the filling of the delivery tank-wagon. One bottle is intended for the customer and the other is retained by the manufacturer in case an analysis is required for checking purposes. 2 FIELDOFAPPLICATION The method is applicable to the sampling of liquid chlorine 5 APPARATUS for industrial use, with a view to determining only the volumetric chlorine content, when an agreement The installation, which is shown in diagrammatic form in has previousiy been reached between the interested parties figure 4, consists of the tank-wagon at the manufacturer's premises).It cannot 5.1 Liquid chlorine bottle, made of steel, having a usable be applied when it is intended to determine the water capacity of from 1 to 10l (see example in figure 1) and content. provided with a two-valve head having two dipping tubes (see example in figure 2), the shorter tube having a length 2.1 Special case so calculated as to keep below its lower end a residual Method to be applied when no agreement has been made, volume of 12 to 15 % of the total capacity of the bottle. and it is therefore a question of taking one or more representative samples (during emptying of the tank-wagon 5.2 Connection pipes, of copper or steel, having at the custome