Ethylene Glycol Detection Tubes (10 to 100mg/m3)
Gastec Detection Tube No. 165L measures Chloroform with a Range of 10-100 mg/m3.
- Measuring Range: 10 to 100 mg/m3
- Number of Pump Strokes: 2 (200 ml)
- Correction Factor: 1
- Sampling Time: 3 minutes per pump stroke
- Detecting Limit: 2 mg/m3 (2 pump strokes)
- Changes from Yellow to Reddish Brown
- Reaction Principle:
- HOCH2CH2OH → 2HCHO
- 3HCHO + (NH2OH)3H3PO4 → H3PO4
- H3PO4 + Base → Phosphate
- Relative Standard Deviation: 10% (for 10 to 52 mg/m3),15% (for 20 to 100 mg/m3)
- 3 Year Shelf Life
- Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
- Comes in a Box of 5 pre tubes and 5 detector tubes
Possible coexisting substances and their interferences:
| Substance |
Interference |
Changes color by itself to |
| Acid gases |
+ |
Reddish brown |
| Aldehydes |
+ |
Reddish brown |
| Ketones |
+ |
Reddish brown |
| tert-Butyl mercaptan |
+ |
Reddish brown (≧ 1 mg/m3) |
| Tetrahydrothiophene |
+ |
Reddish brown (≧ 1 mg/m3) |
Ethylene Glycol Detection Tubes (10 to 100mg/m3)
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