This International Standard defines physical quantities and other terms in the field of mass transfer relevant to thermal in-sulation systems, and gives the corresponding symbols and units.
BS EN ISO 9346:1996 history
2008BS EN ISO 9346:2008 Hygrothermal performance of buildings and building materials. Physical quantities for mass transfer. Vocabulary
2008BS EN ISO 9346:2007 Hygrothermal performance of buildings and building materials - Physical quantities for mass transfer - Vocabulary
1996BS EN ISO 9346:1996 Thermal insulation - Mass transfer - Physical quantities and definitions