1、Designation:E233517An American National StandardStandard Guide forLaboratory Monitors1This standard is issued under the fixed designation E2335;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in par
2、entheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis guide is for use by laboratory monitors who observe interlaboratory testing performed byparticipating organizations that validate the legitimacy o
3、f test methods and also establish a base of datafrom which precision and bias statements are to be written.Interlaboratory testing is done to determinethe validity of a test standard.Such testing requires diligence by adhering to the protocol establishedfor performing the test in order to minimize v
4、ariability which often exists between laboratories.Because laboratories differ in size,organization,management,personnel,facilities and environmentthere is always a potential for introducing variability in test results.Laboratory monitors confirm that the participating facilities adhere to the test
5、protocol as closely aspossible,thereby improving the chances of a successful interlaboratory study.The laboratory monitorobserves and assesses but does not perform the functions of an auditor or trainer;the laboratorymonitor does not provide accreditation of a laboratory.Laboratory monitors should d
6、emonstrateexpertise in both the content and the intent of the test method.The laboratory monitor is responsibleto render a report to the appointing subcommittee.It is incumbent upon the laboratory monitor tomaintain objectivity when working with participating laboratories.Full-scale product fire tes
7、ts are expensive,especially full-scale tests of bedding and homefurnishings.The development of this standard is intended to ensure that the precision and biasdeveloped for E05 standards demonstrates a high level of statistical validity.This guide does not contain procedures for analysis of the test
8、data obtained from an interlaboratorystudy.The user is directed to Practice E691,if the laboratory study includes six laboratories or more,and to Practice E2653 if the number of laboratories in the interlaboratory study is at least three,butless than six.Using a laboratory monitor as part of an inte
9、rlaboratory test program is optional.However,if amonitor is used,all of the laboratories in the project are to be included.1.Scope1.1 This guide provides a general outline,for use by alaboratory monitor,to assess the qualifications of a laboratorythat has requested to participate in a specific ASTM
10、interlabo-ratory test.1.2 The preliminary assessment is based on observationsmade before initiation of any interlaboratory tests.1.3 The subcommittee,which appoints the laboratorymonitor,specifies the minimum requirements that an organi-zation should meet to qualify as a participant for the interlab
11、o-ratory test.If a laboratory qualification test(pretest)is to beincluded,see details in Section 13.1.4 This fire standard can not be used to provide quantitativemeasures.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of
12、 the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.1This guide is under the jurisdiction ofASTM Committee E05 on Fire Standardsand is the direct responsibility of Subcommittee E05.31 on Terminology
13、 andServices/Functions.Current edition approved July 1,2017.Published July 2017.Originally approvedin 2004.Last previous edition approved in 2012 as E2335-12.DOI:10.1520/E2335-17.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis internat
14、ional standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee
15、.1 1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers
16、to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2E176 Terminology of Fire StandardsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE1537 Test Method for Fire Testing of Upholstered Furni-tureE1822 Test Method for Fire Testing of Stacked ChairsE2653 Practice for Conducting an Interlaboratory Study toDetermine Precision Estimates for a Fire Test Methodwith Fewer Than Six Participating Laboratories2.2 ISO Standards:ISO 13943 Fire Safet