1、Designation: D 4494 95 (Reapproved 2004)Standard Test Method forDetecting Residual Odor of Drycleaning GradePerchloroethylene1This standard is issued under the fixed designation D 4494; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisio
2、n, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 Thi
3、s standard does not purport 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 and health practices and determine the applica-bility of regulatory limitations prior to use. Specific precau-tiona
4、ry statements are given in Section 7.2. Referenced Documents2.1 ASTM Standards:2D 3844 Practice for Labeling Halogenated HydrocarbonSolvent Containers3. Summary of Test Method3.1 A swatch of conditioned cotton fabric is treated bysoaking in drycleaning perchloroethylene, then drained, dried,and stea
5、med. The odor is compared with an untreated swatch.The treated swatch should be no different from the 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 Beake
6、rs,1L.5.2 Oven, forced convection model.6. Material6.1 De-sized and bleached cotton fabric weighing from 120to 135 g/m2(3.6 to 4.0 oz/yd2). The fabric shall be clean, dry,and free from foreign odor.7. Safe Handling Precautions7.1 Handle perchloroethylene only in a well-ventilated hoodfor conducting
7、the test. See Practice D 3844 for the labelinformation.8. Procedure8.1 Condition a swatch, 300 by 300-mm (12 by 12-in.) size,of test fabric at 60 6 10 % relative humidity for at least 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
8、 allow to drain and dry atroom temperature for 4 h.8.4 Dry the treated swatch in a fresh air oven at 60C(140F) 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 sw
9、atch, that was subjected to all steps of the testexcept 8.2 and 8.3.9. Report9.1 Report whether the treated sample cloth has a detectableforeign odor or no foreign odor.10. Precision and Bias10.1 No statement is made about either the precision or thebias of Test Method D 4494 for measuring residual
10、odor sincethe result merely states whether there is conformance to thecriteria for success specified in the procedure.11. Keywords11.1 drycleaning; perchloroethylene; residual odor1This test method is under the jurisdiction of ASTM Committee D26 onHalogenated Organic Solvents and Fire Extinguishing
11、Agents and is the directresponsibility of Subcommittee D26.04 on Test Methods.Current edition approved May 1, 2004. Published June 2004. Originallyapproved in 1985. Last previous edition approved in 1995 as D 4494 95 (2000).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcont
12、act ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International tak
13、es no 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 re
14、sponsibility.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 invited either for revision of this standard or for additional standardsand should be addres
15、sed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at th
16、e address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 4494 95 (2004)2
