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ASTM-D1518:2003 Edition

ASTM-D1518:2003 Edition

$40.63

D1518-85(2003) Standard Test Method for Thermal Transmittance of Textile Materials

Published By Publication Date Number of Pages
ASTM 2003 8
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1.1 This test method covers the determination of the overall thermal transmission coefficients due to the combined action of conduction, convection, and radiation for dry specimens of textile fabrics, battings, and other materials within the limits specified in 1.2. It measures the time rate of heat transfer from a warm, dry, constant-temperature, horizontal flat-plate up through a layer of the test material to a relatively calm, cool atmosphere.

1.2 For practical purposes, this test method is limited to determinations on specimens of fabrics, layered fabric assemblies, and battings having thermal transmittances ( U 2 , as defined in 3.1.2) within a range of 0.7 to 14 W/m 2 K and thicknesses not in excess of 50 mm.

1.3 The coefficients obtained apply strictly only to the particular specimens tested and for the specified thermal and environmental conditions of each test. This test method gives values that are valid for comparison under the same conditions of test, that is, with the specified air velocity, temperature difference between the warm plate and the cool air, and air gap for measuring cool air temperature.

1.4 The values stated in metric units are to be regarded as the standard. Conversion factors, for thermal conductance and conductivity and thermal resistance and resistivity, to other units in common use are given in 1-5

1.5 This standard does not purport to address the safety concerns associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 TABLE 1
TABLE 2
TABLE 3
3 Significance and Use
(

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, and
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TABLE 4
TABLE 5

4 FIG. 1
FIG. 2
5 Sampling
Preparation of Test Specimens
FIG. 3
6 Preparation and Standardization of Apparatus
Procedure
Calculations
7 Report
Precision and Bias
TABLE 6
TABLE 7
TABLE 8
8 Keywords

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