NEN EN ISO 7231:1997被替代
Polymeric Materials, Cellular Flexible - Method Of Assessment Of Air Flow Value At Constant Pressure Drop
出版：Nederlands Normalisatie Instituut
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.
Draft issued in August 2009. (08/2009)
SN EN ISO 7231:1998 - Identical
SS EN ISO 7231 Ed. 1 (1998) - Identical
UNE EN ISO 7231:1998 - Identical
NBN EN ISO 7231:1998 - Identical
NF EN ISO 7231:1998 - Identical
UNI EN ISO 7231:1999 - Identical
I.S. EN ISO 7231:1998 - Identical
NS EN ISO 7231 Ed. 1 (1998) - Identical
ISO 7231:1984 - Identical
BS EN ISO 7231:1998 - Identical
DIN EN ISO 7231 (1998-01) - Identical
ONORM EN ISO 7231:1998 - Identical
