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磷化氫PH3氣體檢測管121SC PHOSPHINE 20-1400ppm,氣體檢測管應(yīng)用行業(yè)分布廣泛,涵蓋石油、化工、冶金、采礦、電子、電力、制藥、食品、醫(yī)療衛(wèi)生、農(nóng)業(yè)、燃?xì)?、市政工程、家庭安全與健康、公用場所、道路安全管理、污水處理、生物科學(xué)、航天航空、軍事反恐等領(lǐng)域,用于防火防爆、預(yù)防中毒、污染監(jiān)測、環(huán)境治理、改善人居環(huán)境。
更新時間:2024-11-07
在線留言磷化氫PH3氣體檢測管121SC PHOSPHINE 20-1400ppm
Tube 21SC
1. PERFORMANCE
1) Measuring range :40-1400 ppm 20-700 ppm
Number of pump strokes 1/2(50ml) (100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :White→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Mercuric chloride(II), Mercuric phosphorus chloride is produced.
PH3+HgCI2+H2O→Hg3P2?HgCI2?H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
700
600
500
400
300
200
100
50
20
ppm
100ml
GAS To pump
121SC PHOSPHINE
Substance Interference ppm Coexistence
Arsine Brown stain is produced. 30 Higher readings are given.
Hydrogen selenide 〃50 〃
Hydrogen sulphide 〃40 〃
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value
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