14/30294356 DC : 0
NA
Status of Standard is Unknown
BS EN ISO 12572 - HYGROTHERMAL PERFORMANCE OF BUILDING MATERIALS AND PRODUCTS - DETERMINATION OF WATER VAPOUR TRANSMISSION PROPERTIES
Hardcopy , PDF
English
Foreword
1 Scope
2 Normative references
3 Definitions, symbols and units
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
Annex ZA (normative) - Normative references to
international publications with their
relevant European publications
Annex ZB (informative) - Informative references to
international publications with their
relevant European publications
Bibliography
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