2021BS ISO 9932:2021 Paper and board. Determination of water vapour transmission rate of sheet materials. Dynamic sweep and static gas methods
1991BS 7406:1991 Methods for determination of water vapour transmission rate of sheet materials (paper and board) by dynamic sweep and static gas methods
BS ISO 9932:2021 Paper and board. Determination of water vapour transmission rate of sheet materials. Dynamic sweep and static gas methods was changed to BS 7406:1991 Methods for determination of water vapour transmission rate of sheet materials (paper and board) by dynamic sweep and static gas methods.