Indicator: 250 ~ 3000 ppm
Measuring Range: 250 ~ 3000 ppm
Sampling Rate: 100mL/min(500mL)
Sampling Time: 5 minute
Colour Change: Orange Yellow → Yellow
Reaction Principle: CO2 + 2KOH → K2CO3 + H2O
Coefficient of Variation:
Nr. of tests: 10
Performance
| Measuring Range |
250 to 3000 ppm |
| Sampling Rate |
100mL/min(500mL) |
| Correction Factor |
1 |
| Sampling Time |
5 minutes |
| Colour Change |
Orange Yellow → Yellow |
| Reaction Principle |
CO2 + 2KOH → K2CO3 + H2O |
| Coefficient of Variation |
10% (for 250 to 1000 ppm) , 5% (for 1000 to 3000 ppm) |
| Shelf Life |
2 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. |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 5000 ppm |
30000 ppm |
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Catalog
Performance
| Measuring Range |
200 to 3000 ppm |
| Sampling Rate |
100mL/min(150mL) |
| Correction Factor |
1 |
| Sampling Time |
1.5 minutes |
| Colour Change |
Pale blue → Purple |
| Reaction Principle |
CO2 + N2H4 → NH2NHCOOH |
| Coefficient of Variation |
10% (for 200 to 1000 ppm) , 5% (for 1000 to 3000 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. |
| Calibration gas generation |
High pressure gas cylinder method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 5000 ppm |
30000 ppm |
- |
Catalog
Performance
| Measuring Range |
500 to 5000 ppm |
| Sampling Rate |
300mL/min(300mL) |
| Correction Factor |
1 |
| Sampling Time |
1 minutes |
| Detecting Limit |
300ppm |
| Colour Change |
Green → Purple |
| Reaction Principle |
H2O + Mg(ClO4)2 → Mg(ClO4)2  H2O |
| Coefficient of Variation |
10% (for 500 to 1000 ppm), 5% (for 1000 to 5000 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature |
Unnecessary for 0 to 40℃ |
| Store the tubes at cool and dark place. |
| Calibration gas generation |
Bubbling method |
Airtec Tube for Cylinder / Compressed Breathing Air / Air Line Test.
Airtec tubes are a convenient and simple system for testing of a gas cylinder, compressed breathing air and air line. Industrial operations often produce, or are performed in the presence of harmful airborne contaminants. When self contained breathing apparatus or other devices are used for respiratory protection, the quality of the breathing air requires special attention. Contaminants entering the compressor or contaminants generated by the compressor or cylinder can be harmful to the worker and the respiratory equipment.
Measurement procedure:
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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. |
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2.Break tips off a fresh detector tube in the tube tip breaker and insert a tube into a tube holder. |
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3.Attach the rubber tube holder to the flow metre outlet. Make certain the tube arrow on the tube pointing in a down direction. |
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4.Turn on the cylinder or compressor and confirm the flow metre according to each Airtec tube specifications. |
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5.Time the flow rate with a stopwatch. |
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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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