CEN TR 16625-2013 Flexible sheets for waterproofing - Statistical definition of manufacturer-s limiting value and declared value (MLV and MDV) - 95 % Statistic《防水用柔性薄板 制造商限制价值和申报价值.pdf
《CEN TR 16625-2013 Flexible sheets for waterproofing - Statistical definition of manufacturer-s limiting value and declared value (MLV and MDV) - 95 % Statistic《防水用柔性薄板 制造商限制价值和申报价值.pdf》由会员分享,可在线阅读,更多相关《CEN TR 16625-2013 Flexible sheets for waterproofing - Statistical definition of manufacturer-s limiting value and declared value (MLV and MDV) - 95 % Statistic《防水用柔性薄板 制造商限制价值和申报价值.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationPD CEN/TR 16625:2013Flexible sheets forwaterproofing Statisticaldefinition of manufacturerslimiting value and declaredvalue (MLV and MDV) 95 %StatisticPD CEN/TR 16625:2013 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implementation of CEN/TR16625:2013
2、.The UK participation in its preparation was entrusted to TechnicalCommittee B/546, Flexible sheets for waterproofing and watervapour control.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessar
3、yprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 82828 7ICS 91.100.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was pu
4、blished under the authority of theStandards Policy and Strategy Committee on 31 December 2013.Amendments issued since publicationDate Text affectedPD CEN/TR 16625:2013TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 16625 December 2013 ICS 91.100.50 English Version Flexible sheets for w
5、aterproofing - Statistical definition of manufacturers limiting value and declared value (MLV and MDV) - 95 % Statistic Feuilles souples dtanchit - Dfinition statistique de la valeur limite annonce par le fabricant (VLF) et de la valeur dclare par le fabricant (VDF) - Statistique 95 % Abdichtungsbah
6、nen - Statistische Definition des Hersteller-Grenzwertes und des Hersteller-Nennwertes (MLV und MDV) - 95 %-Statistik This Technical Report was approved by CEN on 28 October 2013. It has been drawn up by the Technical Committee CEN/TC 254. CEN members are the national standards bodies of Austria, Be
7、lgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Swit
8、zerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nation
9、al Members. Ref. No. CEN/TR 16625:2013 EPD CEN/TR 16625:2013CEN/TR 16625:2013 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Terms and definitions 4 3 Statistical principles 4 3.1 General 4 3.2 MLV/MDV defined by 95 % performance based confidence level 5 Bibliography 6 PD CEN/TR 16625:2013CEN/TR 16625:2
10、013 (E) 3 Foreword This document (CEN/TR 16625) has been prepared by Technical Committee CEN/TC 254 “Flexible sheets for waterproofing”, the secretariat of which is held by NEN. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN
11、and/or CENELEC shall not be held responsible for identifying any or all such patent rights. PD CEN/TR 16625:2013CEN/TR 16625:2013 (E) 4 1 Scope This Technical Report is a guideline for the statistic approach for the definition of MLV/MDV within the declaration of values according to the product stan
12、dards of CEN/TC 254 Flexible sheets for waterproofing (see Bibliography). Characteristics with classes (for example fire behaviour) or pass/fail criteria (for example UV exposure) are not covered by the statistical rules of this report. 2 Terms and definitions For the purposes of the document, the f
13、ollowing terms and definitions apply. NOTE Terms for statistics are common knowledge and are described in different standards (for example ISO 3534-1; ISO/IEC Guide 98-3; ISO/TR 13425). 2.1 manufacturers declared value (MDV)1)nominal value including a double sided specification according to the prod
14、uct standard for a given test method or property 2.2 manufacturers limiting value (MLV)1)nominal value including a single sided specification according to the product standard for a given test method or property Note 1 to entry: The MLV can be a minimum or a maximum value according to statements mad
15、e under product characteristics of the relevant product standard. 2.3 single value value of one test specimen as described within the test standard 2.4 test result result as defined in the test standard Note 1 to entry: The test result is described in the Clause Expression of results of the test sta
16、ndard and reported in the test report. 3 Statistical principles 3.1 General The declaration of the product performance as defined in the product data sheet should be based on statistical interpretation of the factory production control (FPC), the interpretation of the initial type testing (ITT) and
17、the precision of the test methods. For characteristics controlled by FPC tests, where indirect control applies, the statistics of the direct test method apply to the indirect test method including expanded uncertainty. 1) The MLV and MDV definitions are also defined in all product standards given in
18、 the Bibliography of this Technical Report. This Technical Report describes the agreed current position of CEN/TC 254. CEN/TC 254 plans to adjust the statistic definition given in the product standards in accordance with this Technical Report. PD CEN/TR 16625:2013CEN/TR 16625:2013 (E) 5 3.2 MLV/MDV
19、defined by 95 % performance based confidence level The sample shall be taken following the sampling procedure defined by specific product standards. This statistical approach has to be applied either for sampling at the site or within the factory. For a given test method or property used within the
20、factory production control (as defined in the specific product standard) the 95 % performance based confidence level of the test results (as defined in the test method, typically the mean of a set of single measurements) should be within the limits of the MLV/MDV declaration. The continuous characte
21、ristic as the base to calculate the distribution is the test result as defined in the test standard. The precision of the test method is the lowest possible range of the MDV declaration of the datasheet of the manufacturer. 50 % of the precision of the test method is the lowest possible difference b
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