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数量割引、まとめ買い価格の更新、新製品情報をメールでお届けします。
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Indicator: 5 to 100 ppm
Measuring Range:
+ 2.5 to 5 ppm, Number of Pump Strokes 2
+ 5 to 100 ppm, Number of Pump Strokes 1
+ 100 to 200 ppm, Number of Pump Strokes 1/2
Sampling Time: 30 seconds per pump stroke
Colour Change: Purple → Yellow
Reaction Principle: 3NH3 + H3PO4 → (NH4)3PO4
Coefficient of Variation: 10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 30 seconds per pump stroke | |||
| Detecting Limit | 0.5 ppm (n=2) | |||
| Colour Change | Purple → Yellow | |||
| Reaction Principle | 3NH3 + H3PO4 → (NH4)3PO4 | |||
| Coefficient of Variation | 10% (for 5 to 20 ppm), 5% (for 20 to 100 ppm) | |||
| Shelf Life | 3 Years | |||
| Corrections for temperature & humidity | Temperature correction is necessary | |||
| Store the tubes at cool and dark place. | ||||
| Substance | Concentration | Interference | Change colour by itself to |
| Carbon dioxide | 1% |  |
No |
| Hydrazine | + | Yellow | |
| Amines | 1/15 | + | Yellow (5 ppm) |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 25 ppm (2014) | 35 ppm (2014) | 15 to 28% |
