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三氯乙烯Cl2C=CHCl氣體檢測管134SG TRICHLOROETHYLENE 0.05-2.0%,氣體檢測管是利用填充在玻璃管中的檢測劑與被測氣體發(fā)生化學反應(yīng)而發(fā)生顏色變化,通過觀察變色層的長度,得到被測氣體的濃度。在一定直徑的玻璃管內(nèi)緊密地裝填檢測劑,將兩端燒封,然后在玻璃管表面印制表示濃度的刻度,就制成了一支檢測管。檢測劑通過在硅膠或氧化鋁等物質(zhì)表面附著顯色試劑的方法所制成的。顯色試劑遇到被測氣體時,會發(fā)生特定反應(yīng),產(chǎn)生變色,這種檢測試劑具有相當?shù)姆€(wěn)定性。
更新時間:2024-12-19
在線留言三氯乙烯Cl2C=CHCl氣體檢測管134SG TRICHLOROETHYLENE 0.05-2.0%
Tube 34SG
1. PERFORMANCE
1) Measuring range :0.05-1.0% 0.1-2.0%
Number of pump strokes 1(100ml) 1/2(50ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :0.005%(100ml)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(0~20℃)(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :White→Yellow(The top of discoloued layer is pale green.)
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTI0N
CI2C=CHCI+I2O5+H2SO4→I2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.0
%?
0.8
0.6
0.4
0.2
0.1
0.05
Cl2C=CHCl
100ml
134SG TRICHLOROETHYLENE
TEMPERATURE CORRECTION TABLE
Tube Corrected Concentration (%)
Readings 0℃ 5℃ 10℃ 20℃-40℃
(%) (32°F) (41°F) (50°F) (68-104°F)
1.0 1.45 1.3 1.2 1.0
0.8 1.2 1.05 0.95 0.8
0.4 0.65 0.55 0.45 0.4
0.2 0.3 0.25 0.22 0.2
0.1 0.13 0.11 0.11 0.1
0.05 0.05 0.05 0.05 0.05
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Tmperature corrected value
上一篇:134SB三氯乙烯Cl2C=CHCl氣體測毒管134SB TRICHLOROETHYLENE 0.2-36.8
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