Vạch chỉ thị: 2 ~ 10 LB/MMCF
Thang đo: 2 ~ 10 LB/MMCF, bơm 2 lần
Thời gian lấy mẫu: 3 phút mỗi lần bơm
Chuyển đổi màu: vàng sang xanh lá
Phương trình phản ứng: H2O + Mg(ClO4)2 → Mg(ClO4)2 H2O
Hệ số biến đổi: 10% (2 ~ 4 LB/MMCF), 5% ( 4 ~ 10 LB/MMCF)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Manual tube
Performance
| Measuring Range |
2 to 10 LB/MMCF |
| Number of Pump Strokes |
2 |
| Correction Factor |
1 |
| Sampling Time |
3 minutes per pump stroke |
| Detecting Limit |
2 LB/MMCF (n=2) |
| Colour Change |
Yellow → Green |
| Reaction Principle |
H2O + Mg(ClO4)2 → Mg(ClO4)2 H2O |
| Coefficient of Variation |
10% (for 2 to 4 LB/MMCF), 5% (for 4 to 10 LB/MMCF) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Sulphur dioxide |
≦ 15ppm |
No |
No |
| Nitrogen dioxide,Hydrogen sulphide |
≦ 30ppm |
No |
No |
| Hydrogen cyanide |
≦ 40ppm |
No |
No |
| Methyl ethyl ketone |
≦ 70ppm |
No |
No |
| Ethyl acetate |
≦ 100ppm |
No |
No |
| Acrylonitrile |
≦40ppm |
No |
No |
| Acetaldehyde |
≦ 50 ppm |
No |
No |
| Methanol |
≧ 50 ppm |
+ |
Green |
| Triethylene glycol |
|
No |
No |