NBN EN ISO 7231:1998被替代

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.

NBN EN ISO 7231:2010

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

NF 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