鄰二氯苯氣體檢測管214S 0-DICHLOROBENZENE 5-100ppm 返回列表頁

鄰二氯苯氣體檢測管214S 0-DICHLOROBENZENE 5-100ppm

1. PERFORMANCE
1） Measuring range ：5-100 ppm
Number of pump strokes 1（100ml）
2） Sampling time ：1.5 minutes/1 pump stroke
3） Detectable limit ：2 ppm
4） Shelf life ：2 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：15％　RSD-mid.：10％　RSD-high：10％
3. CHEMICAL REACTION
Iodine pentoxide is reduced.
C6H4CI2＋I(xiàn)2O5＋H2SO4→I2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
100
70
50
40
20
10
30
5
ppm
100ml
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Tube No.
214S 0-DICHLOROBENZENE
94
Substance Interference Coexistence
Alcohols Similar stains are produced. Higher readings are given.
Paraffin （morefi nth haynd Cro3c）arbons FIG.3 bWrohwolne. reagent is changed to Dark 〃
Halogenated hydracarbons 〃〃
Esters 〃〃
Aromatic hydrocarbons FIG.1,2 〃〃
0
150
200
250
300
100
50
Benzene〔ppm〕?
FIG.1 Influence of Benzene
o-Dichloro-benzene indicating value 〔ppm〕
50 100
Coexistence
Interference
0
150
200
250
300
100
50
Toluene〔ppm〕?
FIG.2 Influence of Toluene
o-Dichloro-benzene indicating value 〔ppm〕
250 500
Coexistence
Interference
0
150
200
250
300
50
Hexane〔ppm〕?
FIG.3 Influence of Hexane