BS-EN-ISO-13366-2-2006.pdf
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1、BRITISH STANDARD BS EN ISO 13366-2:2006 Incorporating corrigendum no. 1 Milk Enumeration of somatic cells Part 2: Guidance on the operation of fluoro-opto-electronic counters The European Standard EN ISO 13366-2:2006 has the status of a British Standard ICS 67.100.10 ? Licensed Copy: London South Ba
2、nk University, London South Bank University, Sat Aug 18 09:49:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN ISO 13366-2:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2006 BSI 2007 ISBN 978 0 580 59227 0 National forewo
3、rd This British Standard is the UK implementation of EN ISO 13366-2:2006, incorporating corrigendum June 2007. It supersedes BS EN ISO 13366-2:1997 and BS EN ISO 13366-3:1997 which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee AW/5, Chemical analysis of
4、milk and milk products. A list of organizations represented 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 confe
5、r immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 17251 Corrigendum No. 1 31 August 2007Change to supersession information in the national foreword, EN title page and the EN foreword. Licensed Copy: London South Bank University, London South Bank University
6、, Sat Aug 18 09:49:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13366-2 October 2006 ICS 67.100.10Supersedes EN ISO 13366-2:1997 and EN ISO 13366-3:1997 English Version Milk - Enumeration of somatic cells - Part 2: Guidance on the operation o
7、f fluoro-opto-electronic counters (ISO 13366-2:2006) Lait - Dnombrement des cellules somatiques - Partie 2: Lignes directrices pour la mise en oeuvre des compteurs fluoro-opto-lectroniques (ISO 13366-2:2006) Milch - Zhlung somatischer Zellen - Teil 2: Leitfaden zum Betrieb fluoreszenzoptoelektronisc
8、her Zhlgerte (ISO 13366-2:2006) This European Standard was approved by CEN on 29 September 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-
9、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 versions (English, French, German). A version in any other language made by translation under t
10、he 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Icelan
11、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de S
12、tassart, 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 13366-2:2006: E Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:49:59 GMT+00:00 2007, Uncontrolled Copy, (
13、c) BSI Foreword This document (EN ISO 13366-2:2006) has been prepared by Technical Committee ISO/TC 34 “Agricultural food products“ in collaboration with Technical Committee CEN/TC 302 “Milk and milk products - Methods of sampling and analysis“, the secretariat of which is held by NEN. This European
14、 Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2007, and conflicting national standards shall be withdrawn at the latest by April 2007. This document supersedes EN ISO 13366-2:1997 and EN ISO 13366-3:19
15、97. 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 Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia
16、, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 13366-2:2006 has been approved by CEN as EN ISO 13366-2:2006 without any modifications. EN ISO 13366-2:2006 Licensed C
17、opy: London South Bank University, London South Bank University, Sat Aug 18 09:49:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference numbers ISO 13366-2:2006(E) IDF 148-2:2006(E) INTERNATIONAL STANDARD ISO 13366-2 IDF 148-2 Second edition 2006-10-01 Milk Enumeration of somatic cells Part 2: Gui
18、dance on the operation of fluoro-opto-electronic counters Lait Dnombrement des cellules somatiques Partie 2: Lignes directrices pour la mise en uvre des compteurs fluoro-opto-lectroniques EN ISO 13366-2:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:49:
19、59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:49:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii Contents Page Foreword iv Foreword. v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Prin
20、ciple. 2 5 Factors affecting the results of measurements. 2 5.1 Sample bottles 2 5.2 Sampling 2 5.3 Preservation 3 5.4 Sample storage and transport. 3 5.5 Interfering substances . 3 5.6 Sample quality at analysis. 4 5.7 Applied chemicals 4 5.8 Instrument condition 4 5.9 Working factor. 5 5.10 Testin
21、g volumes 5 6 Calibration . 5 6.1 Reference materials 5 6.2 Calibration procedure. 6 7 Sampling 8 8 Determination 8 9 Checks on performance in routine operation 8 9.1 Blank checks. 8 9.2 Carry-over effect. 8 9.3 Ratio of reagent volume and test sample volume. 9 9.4 Pilot checks. 9 9.5 Additional ins
22、trument surveillance. 9 9.6 Repeatability 9 9.7 Intralaboratory reproducibility 10 9.8 External comparisons 10 10 Specific remarks for the use with milk from different species 10 10.1 General. 10 10.2 Cow milk 10 10.3 Goat milk 10 10.4 Sheep milk. 11 10.5 Buffalo milk . 11 11 Precision 11 11.1 Repea
23、tability 11 11.2 Intralaboratory reproducibility 11 11.3 Reproducibility 12 12 Test report . 12 Bibliography. 13 EN ISO 13366-2:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:49:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iv Foreword ISO (the Internat
24、ional Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has bee
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