This standard specifies an instrumental method for determining the water vapour
transmission rate of plastic film, plastic sheeting and multi-layer structures including
plastics, plastics, which have smooth surfaces without any embossed portions, using a humidity
detection sensor, method, infrared detection sensor method and gas chromatographic
sensor method.
NOTE: The corresponding International Standards and the symbol of degree of
correspondence are as follows.
ISO 15106'1: 2003 Plastics -- Fi]tn and sheeting- Determination of
water vapour transmission rate -- Part 1: Humidity detection sensor
method
ISO 15106-2: 2003 Plastics- Film and sheeting- Determination of
water vapour transmission rate -- Part 2: Infrared detection sensor
method
ISO/DIS 15106-4: 2007 Plastics -- Film and sheeting- Determina-
tion of water vapour transmission rate -- Part 4: Gas-chromatographic
detection sensor method
(Overall evaluation: MOD)
The symbols which denote the degree of correspondence in the con-
tents between JIS and the relevant International Standards are IDT
(identical), MOD (modified) and NEQ (not equivalent) according to
ISO/IEC Guide 21.
JIS K 7129:2008 Referenced Document
ISO 2528 Sheet materials - Determination of water vapour transmission rate (WVTR) - Gravimetric (dish) method*， 2017-10-01 Update