Calibration gas mixture ( SRM (Standard (State) Reference Material))
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Calibration gas mixture (SRM)
H2S [ hydrogen sulfide] +
CH3SH [methanethiol] +
C2H5SH [ ethanethiol] +
C3H7SH [1-Propanethiol ] +
i-C3H7SH [2-Propanethiol(Isopropanethiol)] +
C4H9SH [1-butanethiol] +
i-C4H9SH [2-methyl-1-propanethiol (isobutanethiol)] +
sec-C4H9SH [2-butanethiol] +
tert-C4H9SH [2-methyl-2-propanethiol] +
CH4 [methane] (bal.)
Cylinder – 5 dm3
SRM | Component composition | |||
(TS, State Standard) | Component name | Content | Manufacturing accuracy | Analytical accuracy |
10538-2014 | mole fraction, ppm | |||
Grade: 2 | H2S [ hydrogen sulfide] CAS 7783-06-4 | 5 | 1 | 0.4 |
COS [ carbonlyl sulfide] CAS 463-58-1 | 5 | 1 | 0.4 | |
CH3SH [methanethiol] CAS 74-93-1 | 5 | 1 | 0.4 | |
C2H5SH [ ethanethiol] CAS 75-08-1 | 5 | 1 | 0.4 | |
C3H7SH [1-Propanethiol ] CAS 107-03-9 | 5 | 1 | 0.4 | |
i-C3H7SH [2-Propanethiol(Isopropanethiol)] CAS 75-33-2 | 5 | 1 | 0.4 | |
C4H9SH [1-butanethiol] CAS 109-79-5 | 5 | 1 | 0.4 | |
i-C4H9SH [2-methyl-1-propanethiol (isobutanethiol)] CAS 513-44-0 | 5 | 1 | 0.4 | |
sec-C4H9SH [2-butanethiol] CAS 513-53-1 | 5 | 1 | 0.4 | |
tert-C4H9SH [2-methyl-2-propanethiol CAS 75-66-1 | 5 | 1 | 0.4 | |
CH4 [methane] CAS 74-82-8 | bal. |
Cylinder | |||
Material | Volume, dm3 | Weight, kgs | Valve |
aluminium | 5 | – | stainless steel, left thread DIN477-1 |
State standard 10538-2014