1.1 This test method covers the determination of the insulation value of clothing items that cover only the head (Option #1), a hand (Option #2), or a foot (Option #3). It describes the measurement of the resistance to dry heat transfer from a heated manikin form to a relatively calm, cool environment. 1.1.1 This is a static test that provides a baseline clothing measurement on a stationary head manikin form (Option #1), hand manikin form (Option #2), or foot manikin form (Option #3). 1.1.2 The effects of body part position, movement, and contacting other surfaces are not addressed in this test method. 1.2 The insulation values obtained apply only to the particular clothing item evaluated and for the specified environmental conditions of each test, particularly with respect to air movement. 1.3 Units--The values stated in either clo or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. The thermal resistance units, clo or SI, shall be identified clearly and consistency of units shall be maintained throughout reporting process. 1.4 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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Keywordsclothing insulation; protective clothing; thermal insulation; thermal manikin; glove insulation; boot insulation; hand wear; headgear; headwear; footwear
This standard is needed to provide a consistent way to evaluate insulation in clothing accessories such as gloves, footwear, and headgear.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Ballot Item Approved as F3426-2020 and Pending Publication