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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>124SB甲苯C6H5CH3气体测毒管124SB TOLUENE 2-100ppm

甲苯C6H5CH3气体测毒管124SB TOLUENE 2-100ppm

简要描述:

甲苯C6H5CH3气体测毒管124SB TOLUENE 2-100ppm,测量精度高:在检测管含量标度的确定上模拟了现场分析条件,采用不同标准气标定,克服了化学分析中易带入的方法误差。同时减少了人为误差。该方法准确度误差一般有效量程为5%~15%,PPM(10-6)数量级的测量有优势。分析速度快:由于操作方便,使得每一次分析所需时间大为缩短,一般仅需十几分钟即可得知结果,其分析速度是任何化学分析和仪器方法不能比拟的。

更新时间:2017-08-05

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甲苯C6H5CH3气体测毒管124SB TOLUENE 2-100ppm

甲苯C6H5CH3气体测毒管124SB TOLUENE 2-100ppm

1. PERFORMANCE
1) Measuring range :2-100 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :1 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(0~10℃)(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :White→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Iodine pentoxide is reduced.
C6H5CH3+I2O5+H2SO4→I2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
ppm
100
80
60
40
30
20
10
5
2
GAS To pump
Tube No.
124SB TOLUENE
0
100
50
Xylene〔ppm〕�
FIG.1 Influence of Xylene
Toluene indicating value 〔ppm〕
50 100
Interference
0
100
50
Ethyl benzene〔ppm〕�
FIG.2 Influence of Ethyl benzene
Toluene indicating value 〔ppm〕
50 100
Interference
Substance Interference Coexistence
Aromatic hydrocarbons FIG.1,FIG.2 Similar stain is produced. Higher readings are given.
Double-layer stain is produced. If
Hexane the brown stain is clear, the readings
can be obtained by it.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 5℃ 15-40℃
(ppm) (32°F) (80°F) (95-104°F)
100 150 125 100
80 120 100 80
60 85 75 60
40 55 45 40
30 40 35 30
20 28 23 20
10 13 10 10
5 6 5 5
2 2 2 2

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