Gastec 9L Quick-measuring Detector tubes Nitrogen Dioxide NO2 (0.5~125ppm)
ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)
Model9L
ຕິດຕໍ່
ການຊຳລະເງິນທີ່ປອດໄພ
ການຮັບປະກັນຄຸນນະພາບ
ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ
ມີບໍລິການຈັດສົ່ງ
Indicator:
Measuring Range:
+ 0.5 to 30 ppm, Number of Pump Strokes 2
+ 30 to 125 ppm, Number of Pump Strokes 1
Sampling Time: per pump stroke
Colour Change: White → Yellowish Orange
Reaction Principle: NO2 + o-Tolidine → Yellowish orange product
Coefficient of Variation: 10% (for 0.5 to 3 ppm), 5% (for 3 to 30 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Performance
| Measuring Range |
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| Number of Pump Strokes |
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| Correction Factor |
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| Sampling Time | 30 seconds per pump stroke | ||
| Detecting Limit | 0.1 ppm (n=2) | ||
| Colour Change | White → Yellowish Orange | ||
| Reaction Principle | NO2 + o-Tolidine → Yellowish orange product | ||
| Coefficient of Variation | 10% (for 0.5 to 3 ppm), 5% (for 3 to 30 ppm) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity | Unnecessary | ||
| Store the tubes at cool and dark place. | |||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Ammonia | No | No | |
| Carbon monoxide | No | No | |
| Carbon dioxide | No | No | |
| Nitric oxide | 50 ppm | Unclear demarcation | Pale red |
| Bromine, Chlorine | 1/5 times | + | Yellowish orange |
| sulphur dioxide | 10 ppm |  (Bleaching) |
No |
| Organic solvents | No | No |
Other substance measurable with this detector tube
| Substance | Correction Factor | No. of pump strokes | Measuring Range |
| Iodine | 0.4 | 2 | 0.2 to 12 ppm |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 0.2 ppm(2014) | - | - |
ຕິດຕາມຂ່າວສານ ແລະ ຂໍ້ສະເໜີ
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
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ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ