Gastec 11A Airtec(压缩空气)氮氧化物检测管 NO + NO2(0.02~2ppm)
制造商: Gastec Model: 11A - 报价要求
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Indicator: 0.02 to 0.7 ppm
Measuring Range: 0.02 to 0.7 ppm; 0.06 to 2 ppm
Sampling Rate: 100mL/min(500mL); 100mL/min(200mL)
Sampling Time: 5 minute; 2 minute
Colour Change: White → Bluish green
Reaction Principle: ABTS + NO2 → Bluish green product
Coefficient of Variation: 10% (for 0.02 to 0.2 ppm), 5% (for 0.2 to 0.7 ppm)
Nr. of tests: 10
Measuring Range | 0.02 to 0.7 ppm | 0.06 to 2 ppm |
Sampling Rate | 100mL/min(500mL) | 100mL/min(200mL) |
Correction Factor | 1 | 2.9 |
Sampling Time | 5 minutes | 2 minutes |
Colour Change | White → Bluish green | |
Reaction Principle | ABTS + NO2 → Bluish green product | |
Coefficient of Variation | 10% (for 0.02 to 0.2 ppm), 5% (for 0.2 to 0.7 ppm) | |
Shelf Life | 3 Years | |
Corrections for temperature | Unnecessary for 0 to 40℃ | |
Corrections for humidity | Unnecessary for R.H.0 to 90% | |
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Change colour by itself to |
Chlorine | + | Bluish green |
Calibration gas generation | Permeation tube method |
TLV-TWA | TLV-STEL | Explosive range |
NO2: 0.2 ppm(2014) NO: 25 ppm(2014) |
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Airtec tube - Compressed breathing air detector tubes
Measurement procedure:
1.Install a reducer pressure with gauge and flow metre to a cylinder, compressor or air line and adjust the flow metre the required setting. | ||
2.Break tips off a fresh detector tube in the tube tip breaker and insert a tube into a tube holder. | ||
3.Attach the rubber tube holder to the flow metre outlet. Make certain the tube arrowon the tube pointing in a down direction. | ||
4.Turn on the cylinder or compressor and confirm the flow metre according to each Airtec tube specifications. | ||
5.Time the flow rate with a stopwatch. | ||
6.As soon as sampling time has elapsed turn off the cylinder or compressor, and remove the tube from the tube holder and then read the colour change layer immediately. |
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