|
|
| Hydorogen chloride |
HCl |
NO.14D |
| Performance |
Measuring
Range
|
1 to 100 ppm |
Sampling Hours
|
1 to 10 hours |
Detecting Limit
|
0.05 ppm (10 hours) |
Color Change
|
Yellow --->
Purple |
| Reaction
Principle |
Hydrogen chloride
react with base to discolor the indicator to purple. |
| Coefficient
of Variation |
10% (for 10 to
100 ppm-hr) |
| Shelf
Life |
3 Years |
| Corrections
for temperature & humidity |
Temperature correction
is necessary
Humidity correction is necessary |
| Store the
tubes at cool and dark place. |
| Possible
coexisting substances and their interferences |
Substance
|
Concentration
|
Interference |
Change
color by itself |
Chlorine
|
1/5 times
|
Plus error
(Bleaches zero zone)
|
Bleaches zero zone |
Nitric acid
|
1/5 times
|
Plus error
|
Produce purple
stain |
Hydrogen fluoride
|
1 time
|
Plus error |
Produce purple
stain |
| Other
substance measurable with this detector tube |
Substance
|
Correction
Factor
|
Measuring
Range |
Nitric acid
|
0.8
|
0.8 to 80 ppm |
Hydrogen fluoride
|
2.5
|
2.5 to 250 ppm |
| Calibration
gas generation |
Diffusion tube method |
TLV-TWA
|
TLV-STEL
|
Explosive
range |
| - |
C 5ppm |
- |
|
