BS ISO 6974-4:2000被替代
Natural Gas - Determination Of Composition With Defined Uncertainty By Gas Chromatography - Part 4: Determination Of Nitrogen, Carbon Dioxide And C1 To C5 And C6+ Hydrocarbons For A Laboratory And On-line Measuring System Using Two Columns
出版：British Standards Institution
專家解讀視頻
A gas chromatographic method for the quantative determination of natural gas constituents using a two-column system is described in this part of ISO 6974. It is applicable to determinations made in the laboratory or in on-line processes. It also applies to the analysis of gases containing constituents within the mole fraction ranges given in Table 1. These ranges do not represent the limits of detection, but the limits within which the stated accuracy of the method applies. Although one or more components in a sample may not be detected present, the method can still be applicable. Only applicable if used in conjunction with Parts 1 and 2 of ISO 6974. TABLE 1 - APPLICATION RANGES forms part of this scope.
? British Standards Institution 2013
Together with BS ISO 6974-1, BS ISO 6974-2, BS ISO 6974-3 and
BS ISO 6974-5 it supersedes BS 3156-11.1.1(1986).
(07/2000)
Renumbered and superseded by BS EN ISO 6974-4
Supersedes 95/123188 DC
(08/2002)
ISO 6974-4:2000 - Identical
