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ASTM International , 02/01/2014
Publisher: ASTM
File Format: PDF
$29.00$58.00
1.1This test method covers quantitative measurements and subjective observations that characterize the performance for evaluating the heat resistance of materials, protective clothing and equipment when exposed in a hot air circulating oven.
1.2This test method is intended to evaluate physical changes in materials, protective clothing and equipment at a specified heat exposure.
1.2.1The specified heat exposure in the hot air circulating oven is a combination of convective heat and radiant heat.
1.3Materials, protective clothing and equipment are evaluated for visible changes or subjected to a material property measurement following a specified heat exposure.
1.3.1This test method is not to be used for the evaluation of sticking. An acceptable method for evaluating sticking of fabrics is described in NFPA 1975, Sections 7.2.1 and 8.3. The NFPA 1975 test method evaluates the thermal stability of specimens by assessing the blocking of folded specimens placed between glass plates, under a specified weight, inside an oven meeting the same characteristics of the oven used in this test method.
1.4This test method enables the quantitative measurement of dimensional change that occurs as a result of a specified heat exposure in a hot air circulating oven.
1.5The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to other units that are commonly used for thermal testing.
1.6This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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