1、Designation: D 1349 07Standard Practice forRubberStandard Temperatures for Testing1This standard is issued under the fixed designation D 1349; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in p
2、arentheses 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 Defense.1. Scope1.1 This practice covers a list of standard temperatures fromwhich s
3、election may be made for any specific test or testmethod. Any standard or specification that specifies test tem-peratures not listed shall take precedence over this practice.1.2 These temperatures do not apply to mixing, processing,or vulcanizing temperatures for rubber compounds. Any stan-dard requ
4、iring preparation of a particular rubber compoundshould specify the conditions to be used.1.3 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.4 This standard does not purport to address all of thesafety concerns, if any, asso
5、ciated 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.2. Test Temperatures2.1 The test temperatures are as follows:C F75 10355 6740 4025 1310 1403223 73.4
6、40 10455 13170 15885 185100 212125 257135 275150 302160 320175 347200 392225 437250 482275 527300 5722.2 Tolerances for the test temperature, unless otherwisespecified in a particular method, shall be 62C or 63.6F. Thistolerance is the maximum allowable variation in the tempera-ture of the space enc
7、losing the specimens being tested. Theaverage temperature of the space shall be as close as practi-cable to the specified temperature.2.3 Unless otherwise specified, conditioning and testing ofmaterials known to be sensitive to variations in temperature orrelative humidity, shall be carried out at a
8、 temperature of 23 62C (73.4 6 3.6F) and a relative humidity of 50 6 5%.3. Keywords3.1 standard test temperaturesASTM 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 advi
9、sed 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
10、reapproved or withdrawn. Your comments are invited either for revision of this 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
11、 you feel that your comments have not received a fair hearing you shouldmake 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. Individ
12、ual 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).1This practice is under the jurisdiction of ASTM Committee D11 on Ru
13、bber andis the direct responsibility of Subcommittee D11.14 on Time and Temperature-Dependent Physical Properties.Current edition approved July 1, 2007. Published August 2007. Originallyapproved in 1954. Last previous edition approved in 2005 as D 1349 99 (2005).1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
