ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
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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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. | |
| 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. | |
| 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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