I.S. EN ISO 7231:1998被替代
Polymeric Materials, Cellular Flexible - Method Of Assessment Of Air Flow Value At Constant Pressure-drop
出版：National Standards Authority of Ireland
专家解读视频
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.
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
UNI EN ISO 7231:1999 - Identical
NF EN ISO 7231:1998 - 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
