1、Designation:D449495(Reapproved 2020)Standard Test Method forDetecting Residual Odor of Drycleaning GradePerchloroethylene1This standard is issued under the fixed designation D4494;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the y
2、ear 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 test method covers the detection of a residual odorin drycleaning-grade perchloroethylene.1.2 The values stated
3、 in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of thi
4、s standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Specific precautionary statements are given in Section 7.1.4 This international standard was developed in accor-dance with internationally recognized
5、 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 Documents2.1 ASTM Standards:2D3844 Guide for Labeling Chlor
6、inated Hydrocarbon Sol-vent Containers(Withdrawn 2013)33.Summary of Test Method3.1 A swatch of conditioned cotton fabric is treated bysoaking in drycleaning perchloroethylene,then drained,dried,and steamed.The odor is compared with an untreated swatch.The treated swatch should be no different from t
7、he untreated.4.Significance and Use4.1 Normally clothes cleaned with perchloroethylene willhave a clean cloth odor.If a foreign odor is present,it may beobjectionable.5.Apparatus5.1 Two-Glass Beakers,1 L.5.2 Oven,forced convection model.6.Material6.1 De-sized and bleached cotton fabric weighing from
8、 120g/m2to 135 g/m2(3.6 oz/yd2to 4.0 oz/yd2).The fabric shall beclean,dry,and free from foreign odor.7.Safe Handling Precautions7.1 Handle perchloroethylene only in a well-ventilated hoodfor conducting the test.See Guide D3844 for the labelinformation.8.Procedure8.1 Condition a swatch,300 mm by 300
9、mm(12 in.by 12in.)size,of test fabric at 60 6 10%relative humidity for atleast 8 h.8.2 Soak the test swatch in a beaker with 100 mL ofperchloroethylene for 5 min.8.3 Remove it from the beaker and allow to drain and dry atroom temperature for 4 h.8.4 Dry the treated swatch in a fresh air oven at 60 C
10、(140 F)for 30 min.8.5 Place the treated swatch in the steam vapor from boilingwater for 5 s and check the odor of the cloth.8.6 Compare the odor of the treated swatch with an un-treated control swatch,that was subjected to all steps of the testexcept 8.2 and 8.3.9.Report9.1 Report whether the treate
11、d sample cloth has a detectableforeign odor or no foreign odor.1This test method is under the jurisdiction of ASTM Committee D26 onHalogenated Organic Solvents and Fire Extinguishing Agents and is the directresponsibility of Subcommittee D26.04 on Test Methods.Current edition approved Jan.1,2020.Pub
12、lished January 2020.Originallyapproved in 1985.Last previous edition approved in 2015 as D449495(2015).DOI:10.1520/D449495R20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refe
13、r to the standards Document Summary page onthe ASTM website.3The last approved version 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 acc
14、ordance 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.10.Precision and Bias10.1 No state
15、ment is made about either the precision or thebias of Test Method D4494 for measuring residual odor sincethe result merely states whether there is conformance to thecriteria for success specified in the procedure.11.Keywords11.1 drycleaning;perchloroethylene;residual odorASTM International takes no
16、position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard.Users of this standard are expressly advised that determination of the validity of any such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are inv
