Vạch chỉ thị: 50 ~ 4000 ppm
Thang đo:
+ 50 ~ 4000 ppm, bơm 2 lần
+ 4000 ~ 12000 ppm, bơm 1 lần
Thời gian lấy mẫu: 2 phút mỗi lần bơm
Chuyển đổi màu: vàng sang đỏ
Phương trình phản ứng: 3CH3COCH3 + (NH2OH)3 H3PO4 → H3PO4, H3PO4+ Base → Phosphate
Hệ số biến đổi: 15% (50 ~ 500 ppm), 10% ( 500 ~ 4000 ppm)
Số ống trong hộp: 10
Dùng thích hợp với bơm: GV-100S/110S
Catalog
Manual
Manual tube
Performance
| Measuring Range |
| 50 to 4000 ppm |
4000 to 12000 ppm |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
2 minutes per pump stroke |
| Detecting Limit |
5 ppm (n=2) |
| Colour Change |
Yellow → Red |
| Reaction Principle |
3CH3COCH3 + (NH2OH)3 H3PO4 → H3PO4
H3PO4+ Base → Phosphate |
| Coefficient of Variation |
15% (for 50 to 500 ppm), 10% (for 500 to 4000 ppm) |
| Shelf Life |
2 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Acrolein, Acetaldehyde |
1/10 time |
+ |
Red |
| Aromatic hydrocarbons |
|
No |
No |
| Methyl isobutyl ketone |
|
+ |
Red |
| Methyl ethyl ketone |
|
+ |
Red |
Other substance measurable with this detector tube
| Substance |
Correction Factor |
No. of pump strokes |
Measuring Range |
| Methyl ethyl ketone |
Factor: 0.42 |
5 |
21 to 1680 ppm |
| Propionaldehyde |
Factor: 0.47 |
2 |
24 to 1880 ppm |
| Calibration gas generation |
Diffusion tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 500 ppm(2014) |
750 ppm(2014) |
2.1 to 13% |
