| Nickel carbonyl | Ni(CO)4 | NO.20L |
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| Performance |
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Measuring Range |
10 to 200 ppm |
200 to 800 ppm |
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Number of Pump Stroke |
4 |
1 |
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Correction Factor |
1 |
4 |
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Sampling Time |
1.5 minutes per pump stroke |
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Detecting Limit |
5 ppm (n=4) |
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Color Change |
Pale Yellow |
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Reaction Formula |
Ni(CO)4 + Gold compound  Colloidal gold |
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| Coefficient of Variation |
10% (for 10 to 50 ppm), 5% (for 50 to 200 ppm) |
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| Shelf Life | 3 Years | |
| Corrections for temperature & humidity |
Unnecessary | |
| Store the tubes at cool and dark place. | ||
| Possible coexisting substances and their interferences | (NOTE) |
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Substance |
Concentration |
Interference |
Change color by itself |
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Arsine |
- |
Plus error |
Produce purple stain |
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Hydrogen selenide |
- |
Plus error |
Produce purple stain |
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Hydrogen sulfide |
- |
Plus error |
Produce purple stain |
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Phosphine |
- |
Plus error |
Produce purple stain |
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Stibine |
- |
Plus error |
Produce purple stain |
| Calibration gas generation | Static gas dilution method | |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.05ppm | - | - |
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| Copyright(c) 2001 GASTEC CORPORATION. All rights reserved. |
Purple