ASTM D 2650 : 2010 : R2021
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29-01-2021
1.1This test method covers the quantitative analysis of gases containing specific combinations of the following components: hydrogen; hydrocarbons with up to six carbon atoms per molecule; carbon monoxide; carbon dioxide; mercaptans with one or two carbon atoms per molecule; hydrogen sulfide; and air (nitrogen, oxygen, and argon). This test method cannot be used for the determination of constituents present in amounts less than 0.1 mole %. Dimethylbutanes are assumed absent unless specifically sought.
Note 1:Although experimental procedures described herein are uniform, calculation procedures vary with application. The following influences guide the selection of a particular calculation: qualitative mixture composition; minimum error due to components presumed absent; minimum cross interference between known components; maximum sensitivity to known components; low frequency and complexity of calibration; and type of computing machinery. Serial No. . . . . . . . . . . 7 8 9 10 11 12 13 Name or Application Commercial Commercial BB Stream Dry Gas Mixed Iso Reformer Unstabi- Component O P M O P M OC PC M O P M O P M O P M OC PC M Hydrogen ... ... ... ... ... ... ... ... ... 15 2 M ... ... ... 10 2 M 16 2 M Methane ... ... ... ... ... ... ... ... ... 14 16 M ... ... ... 9 16 M 15 16 M EthyleneE 7 26 M ... ... ... ... ... ... 12 26 M ... ... ... ... ... ... 13 26 M Ethane 6 30 M ... ... ... ... ... ... 11 30 M ... ... ... 7 30 M 12 30 M Propene 5 42 M 7 42 M 6 42 M 10 42 M ... ... ... ... ... ... 8 42 M Propane 3 44 M 4 44 M 4 44 M 7 44 M 3 44 M 5 44 M 6 44 M Butadiene ... ... ... ... ... ... 1 54 M 3 54 M ... ... ... ... ... ... 2 54 M Butene-1 1 56 M 1 56 M 7 41 M 1 ... ... ... ... ... ... ... ... 9 41 M Butene-2 1 56 M 1 56 M 8 56 M 1 56 M ... ... ... ... ... ... 10 56 M Isobutene 1F F M 1 F F 9 39 M 1 F ... 4 43 M ... ... ... 11 39 M Isobutane 4 43 M 5 43 M 5 43 M 8 43 M 1 58 M 6 43 M 7 43 M n-Butane 2 58 M 2 58 M 2 58 M 4 58 M ... ... ... 2 58 M 3 58 M Pentenes ... ... ... 6 70 M G 70 U 9 70 M ... ... ... 3 57 M ... 70 U Isopentane ... ... ... 3 57 M 3 57 M 5 57 M 2 57 M 4 72 M 4 57 M n-Pentane ... ... ... ... ... ... ... ... ... 6 72 M ... ... ... ... ... ... 5 72 M Benzene ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... H H D Hexanes ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... H H D C6 cyclic paraffins ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... H H D Hexanes ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... H H D Toluene ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... H H D Hydrogen sulfide ... ... ... ... ... ... ... ... ... I ... C ... ... ... I I C I I C Carbon dioxide ... ... ... ... ... ... ... ... ... I ... C ... ... ... I I C I I C Carbon monoxide ... ... ... ... ... ... ... ... ... 13 28 M ... ... ... 8 28 M 14 28 M Nitrogen ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... Air ... ... ... ... ... ... ... ... ... 2 32 M ... ... ... 1 32 M 1 32 M Acid Gases ... ... ... ... ... ... ... ... ... I ... C ... ... ... I I C I I C ResidualE 8 27 M 8 27 M 10 27 M 16 14 M 5 27 M 11 14 M 17 14 M ResidualE 9 29 M 9 29 M 11 29 M 17 15 M 6 29 M 12 15 M 18 15 M ResidualE ... ... ... ... ... ... ... ... ... 18 27 M ... ... ... 13 27 M 19 27 M ResidualE ... ... ... ... ... ... ... ... ... 19 29 M ... ... ... 14 29 M 20 29 M Serial No. . . . . . . . . . . 14 15 16 Name or Application H2-C6 Cracked Gas H2-C6 Straight Run Gas Light Refinery Gas Component O P M O P M O P M Hydrogen 1 2 M 1 2 M 20 2 U Methane 2 16 M 2 16 M 17 16 M Ethylene 4 26 M ... ... ... 14 26 M Ethane 7 30 M 5 30 M 13 30 M Propene 11 42 M ... ... ... 12 42 M Propane 6 29 M 4 29 M 10 29 M Butadiene 15 54 M ... ... ... ... ... ... Butane-1 ... ... ... ... ... ... 11 56 M Butene-2 16 56 M ... ... ... ... ... ... Isobutene ... ... ... ... ... ... ... ... ... Isobutane 12 43 M 9 43 M 9 43 M n-Butane 18 58 M 14 58 M 8 58 M Pentenes 21 70 M ... ... ... 15 70 M Isopentane 17 57 M 13 57 M 7 57 M n-Pentane 22 72 M 18 72 M 6 72 M Benzene ... ... ... 19 78 M 5 78 U Hexanes 23 84 M ... ... ... 4 84 U C6 cyclic paraffins ... ... ... 20 84 M ... ... ... Hexanes ... ... ... 17 71 M 3 86 U Toluene ... ... ... 21 92 M ... ... ... Hydrogen sulfide 9 34 M 7 34 M 1 34 U Carbon dioxide 13 44 M 10 44 M 16 44 U Carbon monoxide ... ... ... ... ... ... 18 12 U Nitrogen 5 28 M ... ... ... 19 28 U Air 8 32 M 6 32 M 2 32 U Water 3 18 M 3 18 M ... ... ... Cyclobutane ... ... ... 12 56 M ... ... ... Cyclopentene 20 67 M ... ... ... ... ... ... Pentadienes 20 67 M ... ... ... ... ... ... Cyclopentane ... ... ... 16 70 M ... ... ... Methylmercaptan 14 48 M 11 48 M ... ... ... Ethylmercaptan 19 62 M 15 62 M ... ... ... Residual 41 10 41 M 8 41 M ... ... ... Residual 14 24 14 M 22 14 M ... ... ...
Because of these influences, a tabulation of calculation procedures recommended for stated applications is presented in Section 12 (Table 1).
Propane
Butane
(Cracked
Butanes)
Cracked
Fuel Gas
and Normal
Butanes
Make-Up
Gas
lized Fuel
Gas
Note 2:This test method was developed on Consolidated Electrodynamics Corporation Type 103 Mass Spectrometers. Users of other instruments may have to modify operating parameters and the calibration procedure.
1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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