Indicator: 10 ~ 100 mg/m3
Measuring Range: 10 ~ 100 mg/m3, Number of Pump Strokes 2
Sampling Time: 3 minute per pump stroke
Colour Change: Yellow → Reddish brown
Reaction Principle:
+ HOCH2CH2OH + Oxidiser → 2HCHO
+ 3HCHO + (NH2OH)3H3PO4 → H3PO4
+ H3PO4 + Base → Phosphate
Coefficient of Variation: 15% (for 10 to 20 mg/m3),10% (for 20 to 100 mg/m3)
Nr. of tests: 5
Pump: GV-100S/110S
Detail
Performance
Measuring Range | 10 to 100 mg/m3 |
Number of Pump Strokes | 2 |
Correction Factor | 1 |
Sampling Time | 3 minutes per pump stroke |
Detecting Limit | 2 mg/m3 (n=2) |
Colour Change | Yellow → Reddish brown |
Reaction Principle | HOCH2CH2OH + Oxidiser → 2HCHO 3HCHO + (NH2OH)3H3PO4 → H3PO4 H3PO4 + Base → Phosphate |
Coefficient of Variation | 15% (for 10 to 20 mg/m3),10% (for 20 to 100 mg/m3) |
Shelf Life | 3 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 |
Aldehydes, Ketones, Acid gases | + | Reddish brown | |
Tetrahydrothiophene, tert-Butyl mercaptan | + | Reddish brown(![]() |
Calibration gas generation | Vaper pressure method |
TLV-TWA | TLV-STEL | Explosive range |
- | C 100 mg/m3(H)(2014) | 3.2 to 33% |
- 质量承诺
- 正品保修
- 送货到家
- 交易简单化