产品列表PRODUCTS LIST

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>118SC苯气体检知管118SC Benzene C6H6 1-100ppm

苯气体检知管118SC Benzene C6H6 1-100ppm

简要描述:

苯气体检知管118SC Benzene C6H6 1-100ppm,

更新时间:2017-08-26

发邮件给我们:554328895@qq.com

分享到: 1
在线留言
苯气体检知管118SC Benzene C6H6 1-100ppm

苯气体检知管118SC Benzene C6H6 1-100ppm

Tube No.
2
5
10
20
30
40
50
ppm
GAS To pump
1. PERFORMANCE
1) Measuring range :4-100 ppm 2-50 ppm 1-25 ppm
Number of pump strokes 1(100ml) 2(200ml) 4(400ml)
2) Sampling time :4 minutes/2 pump strokes
3) Detectable limit :0.2 ppm(400ml)
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 2 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
118SC BENZENE
Substance Interference ppm Coexistence
Toluene FIG.1 Yellowish brown stain is produced. Higher readings are given.
Xylene FIG.2 〃〃
Whole reagent is discoloured to
Carbon monoxide 50 Pale brown, the top of discoloured
layer becomes unclear and higher
readings are given.
Hexane 100 〃
(NOTE)
In case of 1 or 4 strokes, following formula is available for the actual concentration.
Actual concentration=Temprature corrected value×
0
20
10
30
Toluene〔ppm〕�
FIG.1 Influence of Toluene
Benzene indicating value 〔ppm〕
5 10 0
20
10
30
Xylene〔ppm〕�
FIG.2 Influence of Xylene
Benzene indicating value 〔ppm〕
10 20
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
50 38 44 50
40 30 35 40 45 50
30 23 26 30 34 38
20 15 18 20 23 25
10 8 9 10 11 13
5 4 5 5 6 6
2
Number of strokes
www.r-biopharm.com.cn
www.r-biopharm.com.cn

联系人
在线客服
用心服务 成就你我