NS EN 1931 Ed. 1 (2000)现行
Flexible Sheets For Waterproofing - Bitumen, Plastic And Rubber Sheets For Roof Waterproofing - Determination Of Water Vapour Transmission Properties
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Gives a method for determining the water vapour transmission properties and the calculation of the density of moisture flow rate, and the moisture resistance factor of waterproofing sheets. It applies to factory made bitumen, plastic and rubber sheets for roof waterproofing.
SN EN 1931:2001 - Identical
NBN EN 1931:2000 - Identical
NF EN 1931:2000 - Identical
ONORM EN 1931:2000 - Identical
BS EN 1931:2000 - Identical
DIN EN 1931 (2001-03) - Identical
I.S. EN 1931:2000 - Identical
UNI EN 1931:2002 - Identical
UNE EN 1931:2001 - Identical
SS EN 1931 Ed. 1 (2001) - Identical
NEN EN 1931:2000 - Identical
