719756

ISO 6974-4:2000

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

standard by International Organization for Standardization , 04/01/2000

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Full Description

This part of ISO 6974 describes a gas chromatographic method for the quantitative determination of natural gas constituents using a two-column system. 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. 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 if used in conjunction with parts 1 and 2 of ISO 6974.

Table 1 - Application ranges
ComponentMole fraction range %
Nitrogen0,001 to 15,0
Carbon dioxide0,001 to 10
Methane75 to 100
Ethane0,001 to 10,0
Propane0,001 to 3,0
iso-Butane (2-methylpropane)0,001 to 1,0
n-Butane0,001 to 1,0
neo-Pentane (2,2-dimethylpropane)0,001 to 0,5
iso-Pentane (2-methylbutane)0,001 to 0,5
n-Pentane0,001 to 0,5
Hexanes + sum of all C6 and higher hydrocarbons0,001 to 0,2
 

Product Details

Published:
04/01/2000
Number of Pages:
12
File Size:
1 file , 120 KB
Same As:
BS EN ISO 6974-4:2001, BS EN ISO 6974-4:2001
Note:
This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. ISO 6974-4:2000

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    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

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  2. ISO 6974:1984


    Natural gas -- Determination of hydrogen, inert gases and hydrocarbons up to C8 -- Gas chromatographic method

    • Historical Version