NF EN ISO 7231:1998被替代
Polymeric Materials, Cellular Flexible - Method Of Assessment Of Air Flow Value At Constant Pressure-drop
出版：Association Francaise de Normalisation
專家解讀視頻
Defines a procedure for determination of the air flow value of cellular polymeric flexible materials. Air flow values may be used to indicate the effects of formulation and production variables on the cellular structure.
Indice de classement: T56-113PR. PR NF EN ISO 7231 July 2008. (07/2008)
SS EN ISO 7231 Ed. 1 (1998) - Identical
UNE EN ISO 7231:1998 - Identical
ISO 7231:1984 - Identical
NS EN ISO 7231 Ed. 1 (1998) - Identical
I.S. EN ISO 7231:1998 - Identical
UNI EN ISO 7231:1999 - Identical
NBN EN ISO 7231:1998 - Identical
ONORM EN ISO 7231:1998 - Identical
DIN EN ISO 7231 (1998-01) - Identical
BS EN ISO 7231:1998 - Identical
NEN EN ISO 7231:1997 - Identical
SN EN ISO 7231:1998 - Identical
NEN EN ISO 7231:2010 - Identical
