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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>232SB乙二醇HOCH2CH2OH气体检测管232SB ETHYLENE GLYCOL 3-40mg/m3

乙二醇HOCH2CH2OH气体检测管232SB ETHYLENE GLYCOL 3-40mg/m3

简要描述:

乙二醇HOCH2CH2OH气体检测管232SB ETHYLENE GLYCOL 3-40mg/m3,气体检测技术只需使用检测管和采集器就可对气体进行检测。操作简单,极易掌握,有着广泛的应用,可以在很多领域发挥作用。其中包括:重工业:钢铁、造船、汽车、造纸等,制造业:食品、家电、半导体等,石化业:化学工业、石油精炼等,能源领域:天然气、电力等,工程施工现场:下水道、燃气工程、建设工地等,科研:研究室、实验室等

更新时间:2017-07-08

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乙二醇HOCH2CH2OH气体检测管232SB ETHYLENE GLYCOL 3-40mg/m3

乙二醇HOCH2CH2OH气体检测管232SB ETHYLENE GLYCOL 3-40mg/m3

Tube No.232SB
1. PERFORMANCE
1) Measuring range :3-40mg/m3
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :1mg/m3
4) Shelf life :3 years
5) Operating temperature :15~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 3 pump strokes
8) Colour change :Pale pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By decomposing with an Oxidizer, Formic acid is produced and PH indicator is discoloured.
HOCH2CH2OH+HIO4→2HCHO+HIO3+H2O
HCHO+HIO4+H2SO4→HCOOH+HIO3
HCOOH+NaOH→Na(HCOO)+H2O
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
􀀀 􀀀

GAS To pump
DETECTOR TUBE
(White)
PRETREAT TUBE
40
30
20
10
5 3
300ml
mg/m3
232SB ETHYLENE GLYCOL
Substance Interference Coexistence
Aldehydes Similar stain is produced. Higher readings are given.
Sulphur dioxide Brownish yellow stain is produced. 〃
Hydrogen sulphide 〃〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (mg/m3)
Readings 15℃ 20℃ 30℃ 40℃
(mg/m3) (68°F) (71.6°F) (77°F) (86°F)
40 67 40 32 25
30 50 30 24 19
20 34 20 16 12
10 17 10 8 6
5 8 5 4 3
3 5 3 2.5 2

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