scope:

This Standard specifies the test methods for water vapour permeability of textiles.

These test methods are not appropriate for highly air-permeable textiles such as extremely thin textiles (e.g. lawn) and textiles with extremely low density (e.g. organdie).

NOTE The International Standards corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 11092 : 2014 Textiles - Physiological effects - Measurement of thermal and water-vapour resistance under steady-state conditions (sweating guarded-hotplate test)

ISO 15496 : 2018 Textiles - Measurement of water vapour permeability of textiles for the purpose of quality control (overall evaluation : MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standards and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.