1、ICS 75.160.30Flssiggase Probenahme (ISO 4257 : 2001)European Standard EN ISO 4257 : 2001 has the status of a DIN Standard.National forewordThis standard has been published in accordance with a decision taken by CEN/TC 19 to adopt, withoutalteration, International Standard ISO 4257 as a European Stan
2、dard.The responsible German body involved in its preparation was the Normenausschuss Materialprfung(Materials Testing Standards Committee).DIN EN 27941 and DIN 51622 are the standards corresponding to International Standards ISO 7941 andISO 9162, respectively, referred to in the bibliography of the
3、EN.AmendmentsThis standard differs from the February 1995 edition as follows:a) The sample containers used shall now be of the two-valve type.b) References have been updated.c) The standard has been editorially revised.Previous editionDIN EN ISO 4257: 1995-05.National Annex NAStandards referred to(a
4、nd not included in Bibliography)DIN 51622 Propane, propene, butane, butene and their mixtures RequirementsDIN EN 27941 Analysis of commercial propane and butane by gas chromatography (ISO 7941 : 1988)Ref. No. DIN EN ISO 4257 : 2002-03English price group 08 Sales No. 110807.02DEUTSCHE NORM March 2002
5、EN ISO 4257Continued overleaf.EN comprises 8 pages. No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Liquefied petroleu
6、m gasesMethod of sampling(ISO 4257 : 2001)English version of DIN EN ISO 4257Supersedes February 1995 edition.English versionICS 75.160.30Descriptors:Liquefied petroleum gasesMethod of sampling(ISO 4257 : 2001) 2001. CEN All rights of exploitation in any form and by any meansreserved worldwide for CE
7、N national members.Ref. No. EN ISO 4257 : 2001 EFlssiggase Probenahme(ISO 4257 : 2001)This European Standard was approved by CEN on 2001-06-29.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anati
8、onal standard without any alteration.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French, German).A version in any othe
9、r language made by translation under the responsibility of aCEN member into its own language and notified to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Gree
10、ce, Iceland, Ireland, Italy,Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland,and the United Kingdom.EN ISO 4257July 2001Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung|Ga
11、z de ptrole liqufis Mthodedchantillonnage (ISO 4257 : 2001)Supersedes EN ISO 4257 : 1995.Page 2EN ISO 4257 : 2001ForewordInternational StandardISO 4257 : 2001 Liquefied petroleum gases Method of sampling,which was prepared by ISO/TC 28 Petroleum products and lubricants of the International Organizat
12、ion forStandardization, has been adopted by Technical Committee CEN/TC 19 Petroleum products, lubricants andrelated products, the Secretariat of which is held by NEN, as a European Standard.This European Standard shall be given the status of a national standard, either by publication of an identical
13、 textor by endorsement, and conflicting national standards withdrawn, by January 2002 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard:Austria, Belgium, the Czech Republ
14、ic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.Endorsement noticeThe text of the International Standard ISO 4257 : 2001 was approved by CEN as a European Standard withoutany modification.2333345668Page 3EN ISO 4257 : 2001Page 4EN ISO 4257 : 2001Page 5EN ISO 4257 : 2001Page 6EN ISO 4257 : 2001Page 7EN ISO 4257 : 2001Page 8EN ISO 4257 : 2001
