Indicator: 200 to 5000 ppm
Measuring Range:
+ 50 to 200 ppm, Number of Pump Strokes 2 to 4
+ 200 to 5000 ppm, Number of Pump Strokes 1
Sampling Time: 45 seconds per pump stroke
Colour Change: Purple → Pale pink
Coefficient of Variation: 10% (for 200 to 1000 ppm), 5% (for 1000 to 5000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S
Detail
Catalog
Manual
Performance
Measuring Range |
50 to 200 ppm |
200 to 5000 ppm |
|
Number of Pump Strokes |
|
Correction Factor |
|
Sampling Time |
45 seconds per pump stroke |
Detecting Limit |
10 ppm (n=4) |
Colour Change |
Purple → Pale pink |
Reaction Principle |
Hydrogen chloride reacts with indicator to produce pale pink stain. |
Coefficient of Variation |
10% (for 200 to 1000 ppm), 5% (for 1000 to 5000 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 |
Carbon monoxide |
|
No |
No |
Nitric oxide |
|
No |
No |
Chlorine |
≧ 4ppm |
+ |
White( ≧ 1ppm ) |
Carbon dioxide |
|
No |
No |
Nitrogen dioxide |
≧ 1000ppm |
+ |
White( ≧ 1000ppm ) |
Hydrogen sulphide |
≧ 5% |
 |
No |
Sulphur dioxide |
≧ 100ppm |
+ |
Yellow |
n-Hexane |
|
No |
No |
Calibration gas generation |
High pressure gas cylinder method |
TLV-TWA |
TLV-STEL |
Explosive range |
- |
C 2 ppm(2014) |
- |