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  • BS EN ISO 12572:2001

    Current The latest, up-to-date edition.

    Hygrothermal performance of building materials and products. Determination of water vapour transmission properties

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-08-2001

    Publisher:  British Standards Institution

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

    Foreword
    1 Scope
    2 Normative references
    3 Terms, definitions, symbols, units and subscripts
    4 Principle
    5 Apparatus
    6 Test specimens
    7 Procedure
    8 Calculation and expression of results
    9 Accuracy of measurement
    10 Test report
    Annex A (normative) - Methods suitable for self-
            supporting materials
    Annex B (normative) - Methods suitable for loose fills
    Annex C (normative) - Methods suitable for membranes
            and foils
    Annex D (normative) - Methods suitable for mastics and
            sealants
    Annex E (normative) - Methods suitable for paint, varnishes, etc
    Annex F (normative) Correction for the effect of a masked
            edge of a specimen
    Annex G (normative) - Correction for resistance of air layers
    Annex H (normative) - Method for calculating the water vapour
            resistance of the air layer in the cup
    Annex I (informative) - Weighing repeatability, weighing
            interval and specimen size needed to achieve desired
            accuracy
    Annex J (informative) - Conversion table for water vapour
            transmission units
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides a method based on cup tests for determining the water vapour permeance of building products and the water vapour permeability of building materials under isothermal conditions.

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

    Committee B/540
    Development Note Supersedes 97/105723 DC (03/2005) Supersedes 14/30294356 DC. (09/2016)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 5250:2002 Code of practice for control of condensation in buildings
    08/30168066 DC : DRAFT MAR 2008 BS 6073-2 - PRECAST CONCRETE MASONRY UNITS - PART 2: METHOD FOR SPECIFYING PRECAST CONCRETE MASONRY UNITS
    BS 6073-2:2008 Precast concrete masonry units Guide for specifying precast concrete masonry units
    BS 5250(2011) : 2011 CODE OF PRACTICE FOR CONTROL OF CONDENSATION IN BUILDINGS

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

    ISO 9346:2007 Hygrothermal performance of buildings and building materials — Physical quantities for mass transfer — Vocabulary
    ISO 12571:2013 Hygrothermal performance of building materials and products Determination of hygroscopic sorption properties
    ISO 15148:2002 Hygrothermal performance of building materials and products Determination of water absorption coefficient by partial immersion
    ISO 12570:2000 Hygrothermal performance of building materials and products — Determination of moisture content by drying at elevated temperature
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