
Liquefied petroleum gases - Method of sampling
出版:International Organization for Standardization

专家解读视频
This International Standard specifies the procedure to be used for obtaining samples of unrefrigerated liquefied petroleum gases (LPG). It is suitable for sampling from bulk containers, to provide samples for laboratory testing of products covered by ISO 9162.This International Standard is applicable for the provision of samples for compositional analysis by ISO 7941. It is not applicable for the provision of samples for trace analysis of low-boiling components. If trace analysis of low-boiling components is required, a variable-volume receiver such as that described in ASTM D 3700 should be used.
SN EN ISO 4257:2001 - Identical
UNI EN ISO 4257:2003 - Identical
BS 2000-477:2001 - Identical
IP 477:2002 - Identical
SS EN ISO 4257 Ed. 2 (2001) - Identical
SS ISO 4257 Ed. 1 (1990) - Identical
UNE EN ISO 4257:2002 - Identical
BS 5309-2:1976 - Equivalent
NS EN ISO 4257:2001 - Identical
PN EN ISO 4257:2004 - Identical
UNI EN ISO 4257:1997 - Identical
NF EN ISO 4257:2001 - Identical
NBN EN 27941:1994 - Identical
NBN EN ISO 4257:2001 - Identical
I.S. EN ISO 4257:2002 - Identical
DIN 51610 (1983-06) - Identical
ONORM EN ISO 4257:2002 - Identical
BS EN ISO 4257:2001 - Identical
DIN EN ISO 4257 (2002-03) - Identical
NEN EN ISO 4257:2001 - Identical
KS M ISO 4257:2011 - Identical