Gastec 93 快速丙烯醛测量探测管 CH2:CHCHO(3.3~800ppm)

Indicator: 10 to 800 ppm
Measuring Range: 
+ 3.3 to 10 ppm, Number of Pump Strokes 4
+ 10 to 800 ppm, Number of Pump Strokes 2
Sampling Time: 2 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle: 3CH2CHCHO + (NH2OH)3 • H3PO4 → H3PO4 + Base → Phosphate
Coefficient of Variation: 10% (for 10 to 200 ppm), 5% (for 200 to 800 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
3.3 to 10 ppm 10 to 800 ppm
Number of Pump Strokes
4 2
Correction Factor
1/3 1
Sampling Time 2 minutes per pump stroke
Detecting Limit 2 ppm (n=4)
Colour Change Yellow → Red
Reaction Principle 3CH2CHCHO + (NH2OH)3 • H3PO4 → H3PO4 + Base
→ Phosphate
Coefficient of Variation 10% (for 10 to 200 ppm), 5% (for 200 to 800 ppm)
Shelf Life 2 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
Ammonia     No
sulphur dioxide 1/5 time + No
Acetaldehyde 1/5 time + Red
Acetone 1 time + Red
Methyl Ethyl Ketone 3 times + Red
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
- C 0.1 ppm 2.8 to 31%
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