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ASTM D2650 : 10(2021)

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

9

General Information

Status : ACTIVE
Standard Type: Main
Document No: ASTM D2650 : 10(2021)
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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