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    ASTM

    ASTM D2650 : 10(2015)

    Standard Test Method for Chemical Composition of Gases by Mass Spectrometry

    Standard Details

    1.1 This 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.

    Because of these influences, a tabulation of calculation procedures recommended for stated applications is presented in Section 12 (Table 1).

    Serial No. . . . . . . . . . .

    7

    8

    9

    10

    11

    12

    13

    Name or Application

    Commercial
    Propane

    Commercial
    Butane

    BB Stream
    (Cracked
    Butanes)

    Dry Gas
    Cracked
    Fuel Gas

    Mixed Iso
    and Normal
    Butanes

    Reformer
    Make-Up
    Gas

    Unstabi-
    lized Fuel
    Gas

    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<

    General Information

    Status : Historical
    Standard Type: Main
    Document No: ASTM D2650 : 10(2015)
    Document Year: 2010
    Pages: 7
    • Section Volume:
    • 05.01 Volume 05.01 Petroleum Products, Liquid Fuels, and Lubricants (I): C1234-D3710
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