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D e t e c t i o n
D e t e c t i o n
6.4
WATER VAPOR TUBES 5-160 MG/M
Available on request:
•
in PPM range
•
in a range of 2-200 mg/m
The reading is obtained directly off the tube in parts per million.
NOTE:
High water vapour levels can affect the accuracy of reading (see note below).
GENERAL INFORMATION AND CAUTIONS
•
The measurement result applies only to the sampled portion i. e. for the expanded portion of air. In order to validate
the water content of the total air in a compressed air system, variations in place and time resulting from surface
adsorption and desorption processes must be taken into account. Such processes are strongly dependent on
temperature.
•
The white mist appearing at the air outlet of the detector tube during the measurement is caused by emission of small
droplets of sulfuric acid with the airflow. The amount is very slight. Any irritations will not happen.
•
Used detector tubes without any color change cannot be used repeatedly.
INFLUENCE OF TEMPERATURE
•
Detector tubes can be used between 0 °C and 35 °C (32 °F and 95 °F). The calibration scales on the detector tube
are exactly valid if tubes have a temperature of 20 °C (68 °F) during measurement. If the detector tube temperature
deviates from 20 °C (68 °F), multiply reading (mg/m
Normally, the detector tube temperature is equivalent to ambient temperature.
Temperature of detector tube (°C)
Temperature of detector tube (°F)
Correction factor
OVERALL UNCERTAINTY
Up to ± 15 % in the range above 50 mg/m
Up to ± 25 % in the range 20 mg/m
standard deviation).
STORAGE AND TRANSPORT
Up to 25 °C (77 °F) and protected from light. Expiration date: see back of the package.
SAFETY ADVICE/ DISPOSAL
For tubes contents, the following indications of danger apply: R: 20/21/22-35-37. Safety advice S: 2–23-24/25-26-28 (water).
Tubes must be kept away from unauthorized persons. For disposal of tubes as waste observe the legal regulations
applicable in the individual country of use.
WatchGas BAT-1, 2, 3 Breathing Air Quality Test Kit
Full Compliance with BS EN12021
3
3
) with the appropriate correction factor (see table 11 below).
3
0
32
41
1.85
1.55
(5 l sample) resp. 20 mg/m
3
... 50 mg/m
(5 l sample) resp. 5 mg/m
3
3
5
10
15
50
59
1.35
1.17
Table 11:
(10 l sample).
3
... 20 mg/m
3
16
User Manual
20
25
30
68
77
86
1
0.85
0.7
(10 l sample). (expressed as relative
3
35
95
0.57
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