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氧氣O2氣體檢知管159SB OXYGEN 2-24%，氧氣檢測(cè)管-氧氣檢測(cè)管,氧氣檢測(cè)管檢測(cè)管不僅可用于室內(nèi)空氣檢測(cè)、公共場(chǎng)所的空氣質(zhì)量監(jiān)測(cè)、作業(yè)現(xiàn)場(chǎng)的空氣及特定氣體的測(cè)試、大氣環(huán)境檢測(cè)等許多方面本實(shí)用新型公開了一種氧氣檢測(cè)管,為解決現(xiàn)在市場(chǎng)上的氧氣檢測(cè)儀結(jié)構(gòu)復(fù)雜的問題而設(shè)計(jì),該氧氣檢測(cè)管包括兩端封閉的透明玻璃管,在透明玻璃管內(nèi)填充有顯色劑,在透明玻璃管上沿其長(zhǎng)度方向的標(biāo)注有氧氣濃度標(biāo)識(shí)。
更新時(shí)間：2024-11-20
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氧氣O2氣體檢知管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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