Standard Test Method for Measuring Thermal Insulation of Sleeping Bags Using a Heated Manikin
Standard Test Method for Measuring Thermal Insulation of Sleeping Bags Using a Heated ManikinF1720-06ASTM|F1720-06|en-USStandard Test Method for Measuring Thermal Insulation of Sleeping Bags Using a Heated ManikinStandardF1720 Standard Test Method for Measuring Thermal Insulation of Sleeping Bags Using a Heated Manikin>newBOS Vol. 15.07 Committee F08
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Significance and Use
This test method can be used to quantify and compare the insulation provided by sleeping bags or sleeping bag systems. It can be used for material and design evaluations.
The measurement of the insulation provided by clothing (see Test Method D 1291) and sleeping bags is complex and dependent on the apparatus and techniques used. It is not practical in a test method of this scope to establish details sufficient to cover all contingencies. Departures from the instructions in this test method may lead to significantly different test results. Technical knowledge concerning the theory of heat transfer, temperature and air motion measurement, and testing practices is needed to evaluate which departures from the instructions given in this test method are significant. Standardization of the method reduces, but does not eliminate, the need for such technical knowledge. Any departures should be reported with the results.
Scope
1.1 This test method covers determination of the insulation value of a sleeping bag or sleeping bag system. It measures the resistance to dry heat transfer from a constant skin temperature manikin to a relatively cold environment. This is a static test that generates reproducible results, but the manikin cannot simulate real life sleeping conditions relating to some human and environmental factors, examples of which are listed in the introduction.
1.2 The insulation values obtained apply only to the sleeping bag, as tested, and for the specified thermal and environmental conditions of each test, particularly with respect to air movement past the manikin.
This 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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