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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>118SD苯气体测毒管118SD Benzene C6H6 0.1-75ppm

苯气体测毒管118SD Benzene C6H6 0.1-75ppm

简要描述:

苯气体测毒管118SD Benzene C6H6 0.1-75ppm,气体检测管是一根细长的玻璃管,其外表面印有刻度,能很方便地直接读取被测气体(蒸汽)的浓度。 检测管里有硅胶或氧化铝等填充剂,高选择性的和高稳定性的检测试剂附着其中。目标气体和检测剂接触时,会发生化学变化,从而产生明显的颜色变化。检测管的两端被烧封。至今,已经有超过600种的气体可以用这种方法检测。

更新时间:2017-10-31

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苯气体测毒管118SD Benzene C6H6 0.1-75ppm

苯气体测毒管118SD Benzene C6H6 0.1-75ppm

1. PERFORMANCE
1) Measuring range :1-75 ppm 0.2-15 ppm 0.1-7.5 ppm
Number of pump strokes 1(100ml) 5(500ml) 10(1000ml)
2) Sampling time :10 minutes/5 pump strokes
3) Detectable limit :0.02 ppm(1000ml)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 5 pump strokes
8) Colour change :White→Greenish brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Iodine pentoxide is reduced.
C6H6+I2O5+H2SO4→I2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
0.2
0.5
1
5
10
15
ppm
GAS To pump
DEHUMIDIFIER TUBE DETECTOR TUBE
Tube No.
118SD BENZENE
Substance Interference ppm Coexistence
Toluene Higher readings are given.
Xylene 〃
Whole reagent is changed to
Carbon monoxide 2.0 Pale brown, unclear stain
areproduced and higherreadings
are given.
Hexane 2.0 〃
(NOTE)
In case of 1 or 10 strokes, following formula is available for the actual concentration.
Actual concentration=Tmperature corrected value× 5
Number of strokes
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