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汞蒸氣Hg氣體檢測管142S MERCURY VAPOUR 0.1-10mg/m3,汞為銀白色的液態(tài)金屬,常溫中即有蒸發(fā)。汞中毒(mercurypoisoning)以慢性為多見,主要發(fā)生在生產(chǎn)活動中,長期吸入汞蒸氣和汞化合物粉塵所致。以精神-神經(jīng)異常、齒齦炎、震顫為主要癥狀。大劑量汞蒸氣吸入或汞化合物攝入即發(fā)生急性汞中毒。對汞過敏者,即使局部涂沫汞油基質(zhì)制劑,亦可發(fā)生中毒。接觸汞機會較多的有汞礦開采,汞合金冶煉,金和銀提取,汞整流器,以及真空泵、照明燈、儀表、溫度計、補牙汞合金、雷汞、顏料、制藥
更新時間:2024-12-25
在線留言汞蒸氣Hg氣體檢測管142S MERCURY VAPOUR 0.1-10mg/m3
Tube 42S
1. PERFORMANCE
1) Measuring range :0.5-10mg/m3 0.1-2.0mg/m3
Number of pump strokes 1(100ml) 5(500ml)
2) Sampling time :5 minutes /5 pump strokes
3) Detectable limit :0.02 mg/m3(500ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 5 pump strokes
7) Colour change :Grey→Pale orange
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Cupric iodide(II), Cupric mercury iodide is produced.
Hg+CuI→Cu2(HgI4)
4. CALIBRATION OF THE TUBE
VAPOUR PRESSURE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
mg/m2
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
GAS To pump
142S MERCURY VAPOUR
Substance Interference ppm Coexistence
Chlorine The accuracy of readings is not affected. 0.1 Lower readings are given.
Hydrogen chloride 〃0.5 〃
Nitrogen dioxide Brown stain is produced. 0.1 〃
Hydrogen Sulphide 〃0.5 〃
(NOTE)
In case of 1 pump stroke, actual concentration is calculated with five times of reading value.
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