
Natural gas - Determination of composition with defined uncertainty by gas chromatography Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
出版:International Organization for Standardization

专家解读视频
This part of ISO 6974 describes a gas chromatographic method for the quantitative determination of the content of helium, hydrogen, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons in natural gas samples using twopacked columns. This method is applicable to determinations made in on-line processes or in the laboratory. It is applicable to the analysis of gases containing constituents within the mole fraction ranges given in Table 1 and which do not contain any hydrocarbon condensate. These ranges do not represent the limits of detection, but the limits within which the stated precision of the method applies. Although one or more components in a sample may not be detected present, the method can still be applicable.This part of ISO 6974 is only applicable in conjunction with parts 1 and 2 of ISO 6974.
BS EN ISO 6974-3:2001 - Identical
BS ISO 6974-3:2000 - Identical
ONORM EN ISO 6974-3:2002 - Identical
UNI EN ISO 6974-3:2004 - Identical
PN EN ISO 6974-3:2006 - Identical
SS EN ISO 6974-3 Ed. 1 (2002) - Identical
DIN EN ISO 6974-3 (2002-06) - Identical
NBN EN ISO 6974-3:2002 - Identical
I.S. EN ISO 6974-3:2002 - Identical
NS EN ISO 6974-3 Ed. 1 (2001) - Identical
NEN EN ISO 6974-3:2001 - Identical
NF EN ISO 6974-3:2003 - Identical
GB/T 27894.3-2011 - Identical
UNE EN ISO 6974-3:2003 - Identical
SN EN ISO 6974-3:2001 - Identical
I.S. EN ISO 6974-3:2002 - Identical
EN ISO 6974-3 : 2001 - Identical
DIN EN ISO 6974-3 : 2002 - Identical
DIN EN ISO 6974-3 E : 2002 - Identical
ONORM EN ISO 6974-3 : 2002 - Identical
BS EN ISO 6974-3 : 2001 - Identical
NEN EN ISO 6974-3 : 2001 - Identical
PN EN ISO 6974-3 : 2006 - Identical
DS EN ISO 6974-3 : 2001 - Identical
BS ISO 6974-3 : 2000 AMD 13862 - Identical
NEN ISO 6974-3 : 2000 - Identical
UNI EN ISO 6974-3 : 2004 - Identical
NBN EN ISO 6974-3 : 2002 - Identical
NS EN ISO 6974-3 : 1ED 2001 - Identical
BS EN ISO 6974-3 : 2001 - Identical
UNE EN ISO 6974-3 : 2003 - Identical
DIN EN ISO 6974-3 : 2002 - Identical
ONORM EN ISO 6974-3 : 2002 - Identical
NF EN ISO 6974-3 : 2003 - Identical
PN EN ISO 6974-3 : 2006 - Identical
EN ISO 6974-3 : 2001 - Identical
UNI EN ISO 6974-3 : 2004 - Identical
NBN EN ISO 6974-3 : 2002 - Identical
NEN EN ISO 6974-3 : 2001 - Identical
DS EN ISO 6974-3 : 2001 - Identical
DIN EN ISO 6974-3 E : 2002 - Identical
I.S. EN ISO 6974-3:2002 - Identical
SN EN ISO 6974-3 : 2001 - Identical
BS ISO 6974-3 : 2000 AMD 13862 - Identical
NS EN ISO 6974-3 : 1ED 2001 - Identical
NEN ISO 6974-3 : 2000 - Identical