ASTM-F2732 2011

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F2732-11 Standard Practice for Determining the Temperature Ratings for Cold Weather Protective Clothing

Published By	Publication Date	Number of Pages
ASTM	2011	7

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Category: ASTM

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Description

1.1 This standard practice covers the determination of the temperature rating of cold weather protective clothing ensembles. It involves measuring the insulation value of a clothing ensemble with a heated manikin in accordance with Test Method F1291 and using a heat loss model to predict the lowest environmental temperature for comfort.

1.2 The predictive model used in this standard estimates the evaporative heat loss from a person wearing cold weather clothing as opposed to measuring the evaporative resistance on a sweating manikin. If a person is active and gets overheated in a cold environment, he/she can adjust the garments in order to dissipate excess heat.

1.3 The temperature ratings estimated by this standard practice are guidelines for thermal comfort that are designed to protect people from hypothermia when wearing cold weather protective garments. However, localized cooling, discomfort, and even frostbite could still occur at extremely low temperatures because clothing insulation is not evenly distributed over the body surface. In addition, some body parts (for example, ears, fingers, toes) have a high surface area relative to their mass, and consequently lose heat at a faster rate than other parts of the body.

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 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
2	Terminology Significance and Use Calibration of Manikin Base Ensembles
3	Sampling and Test Specimens Manikin Procedure Insulation Calculations
4	Temperature Ratings Temperature Rating Calculations
5	Report Product Labeling and Advertising Keywords A1. CALCULATIONS FOR TEMPERATURE RATINGS
6	A1.1 Dry Heat Loss from the Skin A1.2 Evaporative Heat Loss from the Skin A1.3 Dry Heat Loss from Respiration
7	A1.4 Evaporative Heat Loss from Respiration A1.5 Skin Temperature and Environmental Temperature

Additional information

Standard Title	F2732-11 Standard Practice for Determining the Temperature Ratings for Cold Weather Protective Clothing
Published Code	ASTM
Publication Date	2011
Pages Count	7

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ASTM-F2732 2011

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