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氧气O2气体检知管159SB OXYGEN 2-24%，氧气检测管-氧气检测管,氧气检测管检测管不仅可用于室内空气检测、公共场所的空气质量监测、作业现场的空气及特定气体的测试、大气环境检测等许多方面本实用新型公开了一种氧气检测管,为解决现在市场上的氧气检测仪结构复杂的问题而设计,该氧气检测管包括两端封闭的透明玻璃管,在透明玻璃管内填充有显色剂,在透明玻璃管上沿其长度方向的标注有氧气浓度标识。
更新时间：2024-04-17
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氧气O2气体检知管159SB OXYGEN 2-24%
1. PERFORMANCE
1） Measuring range ：2-24％
Number of pump strokes 1/2（50ml）
2） Sampling time ：2 minutes/1/2 pump stroke
3） Shelf life ：2 years
4） Operating temperature ：0～40℃
5） Reading ：Direct reading from the scale calibrated by 1 /2 pump stroke
6） Colour change ：White→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low：5％ RSD-mid.：5％ RSD-high：5％
3. CHEMICAL REACTION
Oxygen reacts with alkaline pyrogallol.
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
2
6
9
12
15
18
21
24
%
50ml
GAS To pump
TEMPERA TURE
INDICATOR
Tube No.
159SA,SB OXYGEN
Substance Interference ppm Coexistence
Hydrogen sulphide 2％ Higher readings are given.
Nitrogen dioxide 2％ 〃
Sulphur dioxide Similar stain is produced. 2％ 〃
Carbon dioxide 〃5％ 〃
6.NOTE
1）Coexistence of more than 5％of Carbon dioxide（CO2）gives higher reading and the reading from the scale
should be corrected with the following correction table.
2）The 59SA and SB tubes are necessary to heat the part of the temperature indicator until the indicator
discolours from Red to Purple first. In case of 59SA , it is necessary to use direct flame such as a match
or lighter to heat it up a non-hazardous area.59SB consists of a thin aluminum belt rolled on the indicator
and chemical liquid in a small bottle. When the liquid is dropped on the aluminum fully, a chemical reaction
occurs with generating smoke and temperature comes high. There, the 59SB is possible to use in a
hazardous area.
CO2 CORRECTION TABLE
Scale True Concentration （％）
Readings CO2 CO2 CO2 CO2
（％） 5％ 10％ 15％ 20％
2 2.0 － － －
6 6.0 2.5 － －
9 9.0 6.4 － －
12 12.0 10.0 7.0 6.0
15 15.0 12.8 10.0 7.8
18 18.0 16.0 14.0 12.1
21 21.0 19.0 16.6 14.4
24 24.0 21.2 19.6 17.9
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