1、Designation: D 3924 80 (Reapproved 2005)Standard Specification forStandard Environment for Conditioning and Testing Paint,Varnish, Lacquer, and Related Materials1This standard is issued under the fixed designation D 3924; the number immediately following the designation indicates the year oforiginal
2、 adoption or, in the case of revision, 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.This standard has been approved for use by agencies of the Department of Defen
3、se.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 E 171 and Test MethodE 337.1.2 The values stated in SI units are to be
4、regarded as thestandard. The values given in parentheses are for informationonly.2. Referenced Documents2.1 ASTM Standards:2E41 Terminology Relating to ConditioningE 171 Specification for Standard Atmospheres for Condi-tioning and Testing Flexible Barrier MaterialsE 337 Test Method for Measuring Hum
5、idity with a Psy-chrometer (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 tempe
6、rature of 23 6 2C (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 laboratory
7、fumes. Lighting conditions, 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 fr
8、om 18 to 29.5C (65 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 o
9、f the material beforeconducting 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
10、 otherwise specified 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 Relate
11、d Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.20 on Quality Assurance and Statistics.Current edition approved Feb. 1, 2005. Published February 2005. Originallyapproved in 1980. Last previous edition approved in 1996 as D 3924 80 (1996).2For referenced AS
12、TM 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoh
13、ocken, 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 ris
14、kof 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 thi
15、s standard or for additional standardsand should be addressed 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
16、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).D 3924 80 (2005)2
