• UNI EN ISO 9920 : 2009

    Current The latest, up-to-date edition.

    ERGONOMICS OF THE THERMAL ENVIRONMENT - ESTIMATION OF THERMAL INSULATION AND WATER VAPOUR RESISTANCE OF A CLOTHING ENSEMBLE

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    Published date:  04-11-2009

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Terms and definitions
    3 Application of this International Standard
    4 Estimation of thermal insulation of clothing ensemble
      based on tables and with values measured on a standing
      thermal manikin
      4.1 General
      4.2 Insulation values of complete ensembles
      4.3 Ensemble thermal insulation values based on individual
          garments
      4.4 Complete ensemble insulation corrected for small
          differences in composition
      4.5 Calculation of thermal insulation for clothing
          ensembles
      4.6 Calculation of thermal insulation for individual
          garments
    5 Estimation of clothing area factor
    6 Estimation of surface (or boundary) air layer insulation
    7 Estimation of water vapour resistance
      7.1 General
      7.2 Estimation of vapour resistance of clothing ensembles
          based on tables with values measured on standing thermal
          manikin
      7.3 Estimation of vapour resistance of clothing ensemble
          based on its relation with dry heat resistance
    8 Influence of body movement and air movement on the thermal
      insulation and vapour resistance of a clothing ensemble
      8.1 General
      8.2 Correction of clothing insulation
      8.3 Correction of clothing vapour resistance
      8.4 Activities other than walking
      8.5 Relative air velocity
    9 Other factors influencing clothing insulation
      9.1 General
      9.2 Posture
      9.3 Effect of seats
      9.4 Effect of pressure
      9.5 Wetting
      9.6 Washing
    Annex A (normative) - Thermal insulation values for clothing
            ensembles
    Annex B (normative) - Thermal insulation values for individual
            garments
    Annex C (normative) - Vapour permeability index values for
            clothing ensembles
    Annex D (informative) - Measurement of thermal insulation
            and water vapour resistance of clothing ensembles on
            a thermal manikin
    Annex E (informative) - Measurement of thermal insulation
            and water vapour resistance of a clothing ensemble on
            human subjects
    Annex F (informative) - Different expressions for the thermal
            insulation of clothing
    Annex G (informative) - Estimation of the heat exchanges for
            reflective clothing
    Annex H (informative) - Guidance on the determination of the
            covered body surface area
    Bibliography

    Abstract - (Show below) - (Hide below)

    Ascertains methods for estimating the thermal characteristics (resistance to dry heat loss and evaporative heat loss) in steady-state conditions for a clothing ensemble based on values for known garments, ensembles and textiles.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 13537:2012 Requirements for sleeping bags
    ISO 9237:1995 Textiles — Determination of the permeability of fabrics to air
    ISO 15831:2004 Clothing — Physiological effects — Measurement of thermal insulation by means of a thermal manikin
    ASTM F 1291 : 2016 : REDLINE Standard Test Method for Measuring the Thermal Insulation of Clothing Using a Heated Manikin
    ISO 7726:1998 Ergonomics of the thermal environment Instruments for measuring physical quantities
    ASTM F 2370 : 2016 : REDLINE Standard Test Method for Measuring the Evaporative Resistance of Clothing Using a Sweating Manikin
    ISO/TR 11079:1993 Evaluation of cold environments — Determination of required clothing insulation (IREQ)
    ISO 7933:2004 Ergonomics of the thermal environment — Analytical determination and interpretation of heat stress using calculation of the predicted heat strain
    ISO 7730:2005 Ergonomics of the thermal environment — Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria
    ASTM D 1518 : 2014 : REDLINE Standard Test Method for Thermal Resistance of Batting Systems Using a Hot Plate
    ISO 9886:2004 Ergonomics Evaluation of thermal strain by physiological measurements
    ISO 13731:2001 Ergonomics of the thermal environment Vocabulary and symbols
    ASTM D 737 : 2004 Test Method for Air Permeability of Textile Fabrics
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