Gastec 4HP 硫化水素クイック測定検出器チューブ H2S（0.25〜20％）
メーカーGastec(このブランドの他の製品を見る)
Model4HP
お問い合わせ
安全なチェックアウト
高品質な対応
簡単な交換・返品
配送対応可能
Indicator: 1 to 10 %
Measuring Range:
+ 0.25 to 0.5%, Number of Pump Strokes 2
+ 0.5 to 10 %, Number of Pump Strokes 1
+ 10 to 20 %, Number of Pump Strokes 1/2
Sampling Time: 3 minutes per pump stroke
Colour Change: Pale Blue → Blackish Brown
Reaction Principle: H2S + CuSO4 → CuS + H2SO4
Coefficient of Variation: 10% (for 0.5 to 3 %), 5% (for 3 to 10 %)
Nr. of tests: 10
Pump: GV-100S/110S
Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 3 minutes per pump stroke | |||
| Detecting Limit | 0.1% (n=2) | |||
| Colour Change | Pale Blue → Blackish Brown | |||
| Reaction Principle | H2S + CuSO4 → CuS + H2SO4 | |||
| Coefficient of Variation | 10% (for 0.5 to 3 %), 5% (for 3 to 10 %) | |||
| Shelf Life | 3 Years | |||
| Corrections for temperature & humidity | Unnecessary | |||
| Store the tubes at cool and dark place. | ||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Ammonia | Two layers (Dark brown & dark blue) |
Dark blue | |
| sulphur dioxide | 2.5% |  |
No |
| Mercaptans | 5 % | + | No |
| Calibration gas generation | High pressure gas cylinder method |
| TLV-TWA | TLV-STEL | Explosive range |
| 1 ppm (2014) | 5 ppm (2014) | 4.0 to 44% |
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