ASTM F1868-23 PDF

Scope: 1.1 This test method covers the measurement of the thermal resistance, evaporative resistance, and total heat loss under steady-state conditions of fabrics, films, coatings, foams, and leathers, including multi-layer assemblies, for use in clothing systems. 1.2 The range of this measurement technique for intrinsic thermal resistance is from 0.002 to 0.5 K·m2 /W and for intrinsic evaporative resistance is from 0.0 to 1.0 kPa·m2 /W. The total heat loss range is from 0.0 to 1300 W/m2 . 1.3 The values in SI units shall be regarded as standard. Other units of measurement are provided in this standard but are not regarded as standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM F1868-23 Referenced Document

ASTM C177 Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus
ASTM D1518 Standard Test Method for Thermal Transmittance of Textile Materials
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM F1291 Standard Test Method for Measuring the Thermal Insulation of Clothing Using a Heated Manikin
ASTM F1494 Standard Terminology Relating to Protective Clothing
ASTM F2370 Standard Test Method for Measuring the Evaporative Resistance of Clothing Using a Sweating Manikin
ASTM F3426 Standard Test Method for Measuring the Thermal Insulation of Clothing Items Using Heated Manikin Body Forms
ISO 11092 Textiles - Physiological effects - Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test)

2023 ASTM F1868-23 Standard Test Method for Thermal Resistance, Evaporative Resistance, and Total Heat Loss Measurements of Clothing Materials Using a Sweating Hot Plate
2017 ASTM F1868-17 Standard Test Method for Thermal and Evaporative Resistance of Clothing Materials Using a Sweating Hot Plate
2014 ASTM F1868-14 Standard Test Method for Thermal and Evaporative Resistance of Clothing Materials Using a Sweating Hot Plate
2012 ASTM F1868-12 Standard Test Method for Thermal and Evaporative Resistance of Clothing Materials Using a Sweating Hot Plate
2009 ASTM F1868-09 Standard Test Method for Thermal and Evaporative Resistance of Clothing Materials Using a Sweating Hot Plate
2002 ASTM F1868-02 Standard Test Method for Thermal and Evaporative Resistance of Clothing Materials Using a Sweating Hot Plate
1998 ASTM F1868-98 Standard Test Method for Thermal and Evaporative Resistance of Clothing Materials Using a Sweating Hot Plate