BS-EN-ISO-14637-2006.pdf
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1、BRITISH STANDARD BS EN ISO 14637:2006 Incorporating amendment no. 1 (renumbers BS ISO 14637:2004 as BS EN ISO 14637:2006) Milk Determination of urea content Enzymatic method using difference in pH (Reference method) The European Standard EN ISO 14637:2006 has the status of a British Standard ICS 67.
2、100.10 ? Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 08:55:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN ISO 14637:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2004 BSI 2007 I
3、SBN 0 580 44646 8 National foreword This British Standard was published by BSI. It is the UK implementation of EN ISO 14637:2006. It is identical with ISO 14637:2004. The UK participation in its preparation was entrusted to Technical Committee AW/5, Milk and milk products. A list of organizations re
4、presented on AW/5 can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issu
5、ed since publication Amd. No. DateComments 1690328 February 2007 Renumbers BS ISO 14637:2004 as BS EN ISO 14637:2006. Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 08:55:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
6、 NORM EN ISO 14637 December 2006 ICS 67.100.10 English Version Milk - Determination of urea content - Enzymatic method using difference in pH (Reference method) (ISO 14637:2004) Lait - Dtermination de la teneur en ure - Mthode enzymatique par mesurage de pH diffrentiel (Mthode de rfrence) (ISO 14637
7、:2004) Milch - Bestimmung des Harnstoffgehaltes - Enzymatisches Verfahren mit pH-nderung (Referenzverfahren) (ISO 14637:2004) This European Standard was approved by CEN on 13 November 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for g
8、iving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official ve
9、rsions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium
10、, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZAT
11、ION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14637:2006: E Licensed Copy: London South Bank Univers
12、ity, London South Bank University, Thu Mar 01 08:55:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of ISO 14637:2004 has been prepared by Technical Committee ISO/TC 34 “Agricultural food products” of the International Organization for Standardization (ISO) and has been taken over as
13、 EN ISO 14637:2006 by Technical Committee CEN/TC 302 “Milk and milk products - Methods of sampling and analysis“, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the lat
14、est by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republ
15、ic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 14637:2004 has been ap
16、proved by CEN as EN ISO 14637:2006 without any modifications. EN ISO 14637:2006 Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 08:55:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference numbers ISO 14637:2004(E) IDF 195:2004(E) OSI DI dnaF 4002 INTERNATIONAL
17、 STANDARD ISO 14637 IDF 195 First edition 2004-10-15 Milk Determination of urea content Enzymatic method using difference in pH (Reference method) Lait Dtermination de la teneur en ure Mthode enzymatique utilisant les fluctuations du pH (Mthode de rfrence) EN ISO 14637:2006 Licensed Copy: London Sou
18、th Bank University, London South Bank University, Thu Mar 01 08:55:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS:73641 O4002(E) ID:591 F4002(E) DPlcsid Fremia ihTs PDF file may ctnoian emdebt dedyfepcaes. In ccaocnadrw eith Aebods licensilop gnic,y this file mairp eb ynted iv roweb detu slahl ton
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23、 BoulA draveugust 08 sreyeR e B-1 030Brssuels leT. 14 + 20 947 2111 eTl. 23 + 29 337 888 aFx0 947 22 14 + 974 aFx0 337 2 23 + 431 -Email copyrightisoo.rg -Emailni off-lidif.org We bwww.is.o groWe bwww.fil-idf.o gr Plbuisdehi n Switlrez dna ii ISO dnaID 4002 FA ll rihgtsser edevr Licensed Copy: Londo
24、n South Bank University, London South Bank University, Thu Mar 01 08:55:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS:73641 O4002(E) ID:591 F002(4)E I SO dna ID 4002 F All irhgts seredevr iii Contents Page Forewordiv 1 Scope1 2 Terms and definitions.1 3 Principle.1 4 Reagents1 5 Apparatus.2 6 Sam
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