1、Designation: D3924 80 (Reapproved 2011)Standard Specification forStandard Environment for Conditioning and Testing Paint,Varnish, Lacquer, and Related Materials1This standard is issued under the fixed designation D3924; the number immediately following the designation indicates the year oforiginal a
2、doption 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.This standard has been approved for use by agencies of the Department of Defense.
3、1. Scope1.1 This specification defines the standard atmospheres fornormal conditioning and testing of paint, varnish, lacquer, andrelated materials, at approximately ambient conditions.NOTE 1See Terminology E41, Specification E171 and Test MethodE337.1.2 The values stated in SI units are to be regar
4、ded as thestandard. The values given in parentheses are for informationonly.2. Referenced Documents2.1 ASTM Standards:2E41 Terminology Relating To ConditioningE171 Specification for Atmospheres for Conditioning andTesting Flexible Barrier MaterialsE337 Test Method for Measuring Humidity with a Psy-c
5、hrometer (the Measurement of Wet- and Dry-Bulb Tem-peratures)3. Standard Atmosphere3.1 Unless otherwise specified, conditioning and testing ofcoating materials known to be sensitive to variations intemperature or relative humidity shall be carried out in anatmosphere having a temperature of 23 6 2C
6、(73.5 6 3.5F)and a relative humidity of 50 6 5 %. If closer tolerances arerequired, 61C (62F) or even narrower limits, and 62%relative humidity may be specified.3.2 The standard room or cabinet shall be well-ventilatedbut free of drafts, dust, products of combustion, and laboratoryfumes. Lighting co
7、nditions, unless otherwise specified, shall bethat normally maintained in a room used for paint testpurposes.4. Standard Temperature4.1 Unless otherwise specified, the standard test tempera-ture shall be as specified in Section 3.5. Room Temperature5.1 A temperature in the range from 18 to 29.5C (65
8、 to85F) shall be called room temperature.6. Conditioning and Testing6.1 Unless otherwise specified in the test method, conditionthe organic coating materials or dried test films thereof and thetest equipment for not less than3hintheappropriateatmosphere and verify the temperature of the material bef
9、oreconducting the test in the same atmosphere.6.2 For routine testing where close temperature control isnot critical, conduct all physical tests on organic coatingmaterials or dried test films thereof at the room temperature of18 to 29.5C (65 to 85F).6.3 For referee testing, unless otherwise specifi
10、ed in the testmethod, conduct all physical tests on organic coating materialsor dried test films thereof in the standard atmosphere asspecified in Section 3.7. Keywords7.1 conditioning environment1This specification is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materi
11、als, and Applications and is the direct responsibility ofSubcommittee D01.20 on Quality Assurance and Statistics.Current edition approved June 1, 2011. Published June 2011. Originallyapproved in 1980. Last previous edition approved in 2005 as D3924 80 (2005).DOI: 10.1520/D3924-80R11.2For referenced
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13、ohocken, PA 19428-2959, United States.ASTM International takes 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 r
14、iskof 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 invited either for revision of t
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16、e your views known to the ASTM Committee on Standards, at the 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D3924 80 (2011)2
