ImageVerifierCode 换一换
格式:PDF , 页数:5 ,大小:76.91KB ,
资源ID:179772      下载积分:10 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。 如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【https://www.wnwk.com/docdown/179772.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: QQ登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASTM_D_3670_-_91_2022.pdf)为本站会员(益****师)主动上传,蜗牛文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知蜗牛文库(发送邮件至admin@wnwk.com或直接QQ联系客服),我们立即给予删除!

ASTM_D_3670_-_91_2022.pdf

1、Designation:D367091(Reapproved 2022)Standard Guide forDetermination of Precision and Bias of Methods ofCommittee D221This standard is issued under the fixed designation D3670;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year o

2、f last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This standard provides guidance to task groups ofCommittee D22 on Sampling and Analysis of Atmospheres inplanning and con

3、ducting collaborative testing of candidatemethods.1.2 It is intended for use with other ASTM practices for thedetermination of precision and bias.1.3 It is applicable to most manual and automated methodsand to most components of monitoring systems.It is recog-nized that the evaluation of monitoring

4、systems may providespecial problems.Practice D3249 should be considered forgeneral guidance in this respect.1.4 It is directly applicable to chemical methods and inprinciple to most physical methods,sampling methods,andcalibration procedures.1.5 The processes described are for the general validation

5、 ofmethods of test.A user has the obligation and responsibility tovalidate any method it uses for a specific application and todemonstrate its own competence in the use of validatedmethods.1.6 This international standard was developed in accor-dance with internationally recognized principles on stan

6、dard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D2777 Practice for Determination of Precision and

7、 Bias ofApplicable Test Methods of Committee D19 on WaterD3249 Practice for General Ambient Air Analyzer Proce-duresE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE180 Practice for Determining the Precision of ASTMMethods for Analysis and Testing of Industrial and Spe-cialt

8、y Chemicals(Withdrawn 2009)3E691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE1169 Practice for Conducting Ruggedness Tests3.Terminology3.1 The terms used in this practice are consistent with thosedefined in Practices D2777,E177,E180,and E691.3.2 Defini

9、tions:3.2.1 accuracy,nthe degree of conformity of a valuegenerated by a specific procedure to the assumed or acceptedtrue value.It includes both precision and bias.3.2.2 bias,na systematic(nonrandom)deviation of themethod average value or the measured value from an acceptedreference value.3.2.3 cand

10、idate method,nan analytical method or mea-surement process being considered for standardization.Amethod is a“candidate”until completion of all phases of theconsensus process specified by ASTM regulations for aproposal,an emergency standard,or a standard.3.2.4 collaborative test,nan interlaboratory s

11、tudy of a testmethod wherein the participants analyze or make measure-ments on sub-samples of the same test material.If the testmethod includes the sampling of atmospheres,the participantsshould sample the same test atmosphere,as possible.3.2.5 laboratory bias,nsystematic differences betweenthe true

12、 value and a value reported by a laboratory due to errorsof application such as losses,contamination,miscalibration,and faulty manipulations,for example.3.2.6 method bias,nsystematic departures of the limitingmean from the true value of the parameter measured,caused byphysical or chemical phenomena

13、inherent in the methodology.1This guide is under the jurisdiction of ASTM Committee D22 on AirQualityand is the direct responsibility of Subcommittee D22.01 on Quality Control.Current edition approved Sept.1,2022.Published September 2022.Originallyapproved in 1978.Last previous edition approved in 2

14、014 as D3670 91(2014).DOI:10.1520/D3670-91R22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved v

15、ersion of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization establishe

16、d 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.13.2.7 over-all precision,na value including componentsof within-laboratory and between-user variability.3.2.8 precision,nthe degree of mutual agreement betweenindividual measurements using an analytical method or mea-surement process.In practice,the standard deviation of anentire array of reviewed and acceptable

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2