Vạch chỉ thị: 3 to 40 LB/MMCF
Thang đo:
+ 3 to 40 LB/MMCF, bơm 1 lần
+ 40 to 100 LB/MMCF, bơm 1/2 lần
Thời gian lấy mẫu: 1.5 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% (3 ~ 10 LB/MMCF), 5% (10 ~ 40 LB/MMCF)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Manual tube
Performance
| Measuring Range |
| 3 to 40 LB/MMCF |
40 to 100 LB/MMCF |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
1.5 minutes per pump stroke |
| Detecting Limit |
2 LB/MMCF (n=1) |
| Colour Change |
Yellow → Green |
| Reaction Principle |
H2O + Mg(ClO4)2 → Mg(ClO4)2  H2O |
| Coefficient of Variation |
10% (for 3 to 10 LB/MMCF), 5% (for 10 to 40 LB/MMCF) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes at cool and dark place. |
| *(may become purple with high humidity) |
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 |
≦ 45ppm |
No |
No |
| Methyl ethyl ketone |
≦ 70ppm |
No |
No |
| Ethyl acetate |
≦ 100ppm |
No |
No |
| Acrylonitrile |
≦ 55ppm |
No |
No |
| Acetaldehyde |
≦ 50 ppm |
No |
No |
| Methanol |
≧ 100 ppm |
+ |
Green |
| Triethylene glycol |
|
No |
No |
