Table of Contents

Introduction
1 Scope
2 Normative references
3 Terms symbols and units
4 Test specimens
5 Test apparatus
6 Setting of water vapour
surface resistance
7 Water vapour adsorption/desorption
test method
8 Calculation of results
9 Test report
Annex A (normative) - Measurement of water vapour
surface resistance
Annex B (informative) - Composition and test procedures of
other test apparatus
Annex C (informative) - Calculation procedure of water vapour
infiltration coefficient
Annex JA (normative) - Periodic water vapour adsorption/desorption
test
Annex JB (informative) - Comparison table between JIS AND
corresponding International Standard
Annex JC (informative) - Comparison table between previous and
current editions of this Standard on technically
significant revisions
Bibliography

Abstract

Describes a test method for determining water vapour adsorption/desorption properties at daily cycle (12-hour desorption) mainly of building materials such as interior materials in response to humidity variation.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Japanese Standards Association
Pages
ISBN
Supersedes	JIS A 1470-1:2008 JIS A 1470-1:2002 JIS A 1470-1:2002