Gastec 12D Passive Dosl Tubes Hydrogen cyanide HCN (1 ~ 200 ppm)
ຜູ້ຜະລິດGastec(ເບິ່ງສິນຄ້າອື່ນໆຂອງຍີ່ຫໍ້ນີ້)
Model12D
ຕິດຕໍ່
ການຊຳລະເງິນທີ່ປອດໄພ
ການຮັບປະກັນຄຸນນະພາບ
ປ່ຽນ ແລະ ສົ່ງຄືນງ່າຍ
ມີບໍລິການຈັດສົ່ງ
Indicator: 10 ~ 200 ppm
Measuring Range: 1 ~ 200 ppm
Sampling Hours: 1~10 hours
Colour Change: Yellow → Pink
Coefficient of Variation: 10% (for 10 to 40 ppm-hr),5% (for 40 to 200 ppm-hr)
Nr. of tests: 10
Performance
| Measuring Range | 1 to 200 ppm |
| Sampling Hours | 1 to 10 hours |
| Detecting Limit | 0.3 ppm (10 hours) |
| Colour Change | Yellow → Pink |
| Reaction Principle | Hydrogen Cyanide reacts with the reagent to form intermediate material which stains indicator pink . |
| Coefficient of Variation | 10% (for 10 to 40 ppm-hr),5% (for 40 to 200 ppm-hr) |
| Shelf Life | 2 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 |
| Basic gases |  |
No discolouration | |
| Acid gases | + | Pink | |
| Nitrogen Dioxide |  0.5ppm |
+ | Pink |
| Hydrogen Sulphide | + | Pink |
| Calibration gas generation | Permeation tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| - | C 4.7 ppm (2014) | 5.6 to 40% |
ຕິດຕາມຂ່າວສານ ແລະ ຂໍ້ສະເໜີ
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ການຊ່ວຍເຫຼືໍາດ່ວນ
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ