Gastec 4LB 硫化水素クイック測定検出器チューブ H2S（0.5-12ppm）
メーカーGastec(このブランドの他の製品を見る)
Model4LB
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 6 ppm
Measuring Range:
+ 0.5 to 1 ppm, Number of Pump Strokes 2
+ 1 to 6 ppm, Number of Pump Strokes 1
+ 6 to 12 ppm, Number of Pump Strokes 1/2
Sampling Time: 1 minutes per pump stroke
Colour Change: Yellow → Pink
Coefficient of Variation: 5% (for 1 to 6 ppm)
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 | 1 minute per pump stroke | |||
| Detecting Limit | 0.07 ppm (n=2) | |||
| Colour Change | Yellow → Pink | |||
| Reaction Principle |
Hydrogen Sulphide reacts with the reagent to form intermediate material which stains indicator pink |
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| Coefficient of Variation | 5% (for 1 to 6 ppm) | |||
| Shelf Life | 2 Years | |||
| Corrections for temperature & humidity | Unnecessary |
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Ammonia |  2.3 ppm |
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No discolouration |
| Ethyl Mercaptan | 0.5 ppm |
+ | Pink at 0.4 ppm |
| Hydrogen Chloride | 4.5 ppm |
+ | Pink at 4.0 ppm |
| Hydrogen Cyanide | 0.1 ppm |
+ | Pink at 0.1 ppm |
| Nitric Acid | 6.0 ppm |
+ | Pink at 5.0 ppm |
| Sulphur Dioxide | 1.0 ppm |
+ | Pale pink at 0.7 ppm |
| Nitrogen Dioxide | 3.5 ppm |
|
Pink at 8.0 ppm |
| Hydrogen Fluoride | 13.0 ppm |
+ | Pink at 10.0 ppm |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 1 ppm (2014) | 5 ppm (2014) | 4.0 to 44% |
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