(CH3)3CSH |
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Performance
Measuring Range |
0.5 to 1 mg/m3 |
1 to 15 mg/m3 |
15 to 30 mg/m3 |
|
Number of Pump Strokes |
|
Correction Factor |
|
Sampling Time |
1 minute per pump stroke |
Detecting Limit |
0.1 mg/m3 (n=2) |
Colour Change |
Yellow → Pink |
Reaction Principle |
(CH3)3CSH +HgCl2 → (CH3)3CSHgCl + HCl
HCl + Basic compounds → Chlorides |
Coefficient of Variation |
10% (for 1 to 4 mg/m3), 5% (for 4 to 15 mg/m3) |
Shelf Life |
2 Years |
Corrections for temperature & humidity |
Temperature correction is necessary |
Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
Possible coexisting substances and their interferences
(NOTE)
Substance |
Concentration |
Interference |
Change colour by itself to |
Hydrogen sulphide |
|
+ |
Pink |
Other mercaptans |
|
+ |
Pink |
Dimethyl disulphide |
|
No |
No |
Other substance measurable with this detector tube
Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
2-Mercaptoethanol |
0.5 |
1 |
0.5 to 7.5 ppm |
Calibration gas generation |
Diffusion tube method |
TLV-TWA |
TLV-STEL |
Explosive range |
- |
- |
- |