ASTM D1518 - 11a

    Standard Test Method for Thermal Resistance of Batting Systems Using a Hot Plate

    Active Standard ASTM D1518 | Developed by Subcommittee: D13.51

    Book of Standards Volume: 07.01


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    Significance and Use

    The thermal resistance of a batting or batting/fabric system is of considerable importance in determining its suitability for use in fabricating cold weather protective clothing, sleeping bags, and bedding systems. The thermal interchange between man and his environment is, however, an extremely complicated subject which involves many factors in addition to the insulation values of fabrics and battings. Therefore, measured thermal insulation values can only indicate relative merit of a particular material.

    1. Scope

    1.1 This test method covers the measurement of the thermal resistance, under steady-state conditions, of battings and batting/fabric systems, and other materials within the limits specified in 1.2. It measures the heat transfer from a warm, dry, constant-temperature, horizontal flat-plate up through a layer of the test material to a cool atmosphere and calculates the resistance of the material. The measurements are made under still air conditions (Option #1) or with a horizontal air flow over the specimen (Option #2).

    1.2 For practical purposes, this test method is limited to determinations on specimens of battings and layered batting/fabric assemblies having an intrinsic thermal resistance from 0.1 to 1.5 K·m2/W and thicknesses not in excess of 50 mm.

    1.3 This test method also provides a method for determining the bulk density of the material, the insulation per unit thickness, and the insulation per unit weight.

    1.4 The values stated in SI units are to be regarded as standard.

    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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D123 Terminology Relating to Textiles

    D3776 Test Methods for Mass Per Unit Area (Weight) of Fabric

    E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    F1291 Test Method for Measuring the Thermal Insulation of Clothing Using a Heated Manikin

    F1494 Terminology Relating to Protective Clothing

    F1720 Test Method for Measuring Thermal Insulation of Sleeping Bags Using a Heated Manikin

    F1868 Test Method for Thermal and Evaporative Resistance of Clothing Materials Using a Sweating Hot Plate

    F2370 Test Method for Measuring the Evaporative Resistance of Clothing Using a Sweating Manikin

    ISO Standards

    ISO9073-2 Textile--Test Methods for Nonwovens--Part 2: Determination of Thickness


    ICS Code

    ICS Number Code 59.080.30 (Textile fabrics)

    UNSPSC Code

    UNSPSC Code 11162400(Batting); 30141500(Thermal insulation)


    DOI: 10.1520/D1518-11A

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