1、Designation:D729618Standard Practice forCollection of Settled Dust Samples Using Dry WipeSampling Methods for Subsequent Determination ofBeryllium and Compounds1This standard is issued under the fixed designation D7296;the number immediately following the designation indicates the year oforiginal ad
2、option or,in the case of revision,the year of 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 practice covers the collection of settled dust con-taining beryllium and
3、 beryllium compounds on surfaces usingthe dry wipe sampling method,or both.These samples arecollected in a manner that will permit subsequent extractionand determination of beryllium and compounds in the wipesusing laboratory analysis techniques such as atomic spectrom-etry or fluorescence detection
4、.1.2 This practice is limited in its scope to applications wherewetted wipe sampling(using Practice D6966)or vacuumsampling(using Practice D7144)is not physically feasible(forexample,if the surface to be wiped would be compromised byuse of wetted wipes).1.3 This practice does not address the samplin
5、g designcriteria(that is,sampling plan which includes the number andlocation of samples)that are used for clearance,hazardevaluation,risk assessment,and other purposes.To provide forvalid conclusions,sufficient numbers of samples should beobtained as directed by a sampling plan.Additional guidance i
6、sprovided in Guide D7659.1.4 This practice contains notes that are explanatory and arenot part of the mandatory requirements of this practice.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 This standard does not purport
7、to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This international standard was dev
8、eloped 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 to Trade(TBT)Committee.2.Referenced Docume
9、nts2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD4840 Guide for Sample Chain-of-Custody ProceduresD6966 Practice for Collection of Settled Dust SamplesUsing Wipe Sampling Methods for Subsequent Determi-nation of MetalsD7144 Practice for Collection of Surface D
10、ust by Micro-vacuum Sampling for Subsequent Metals DeterminationD7659 Guide for Strategies for Surface Sampling of Metalsand Metalloids for Worker ProtectionD7707 Specification for Wipe Sampling Materials for Beryl-lium in Surface Dust3.Terminology3.1 For definitions of terms not listed here,see Ter
11、minologyD1356.3.2 Definitions:3.2.1 batch,na group of field or quality control(QC)samples that are collected or processed together at the sametime using the same reagents and equipment.3.2.2 dry wipe,na suitable non-wetted wiping medium.3.2.2.1 DiscussionThese are to be distinguished fromwipes as de
12、fined in Practice D6966 and Specification D7707,which are wet wipes.3.3 Definitions of Terms Specific to This Standard:3.3.1 field blank,na dry wipe(see 3.2.2)that is exposed tothe same handling as field samples except that no sample iscollected(no surface is actually wiped).3.3.1.1 DiscussionAnalys
13、is results from field blanks pro-vide information on the analyte background level in the dry1This practice is under the jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.04 on Workplace Air Quality.Current edition approved Nov.1,2018.Published Novem
14、ber 2018.Originallyapproved in 2006.Last previous edition approved in 2012 as D7296 12.DOI:10.1520/D7296-18.2For 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
15、 Document Summary page onthe ASTM website.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 established in the Decision on P
16、rinciples for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 wipe,combined with the potential contamination experiencedby samples collected within the batch(see 3.2.1)resulting fromhandling.4.Summary of Practice4.1 Wipe samples of settled dust are collected on surfacesfrom areas of known dimensions with dry wipes satisfyingcertain requirements,using a specified pattern of wiping.4.2 The colle
