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简单介绍：
乙二醇HOCH2CH2OH气体检测管232SA
乙二醇HOCH2CH2OH气体检测管232SA，乙二醇HOCH2CH2OH气体检测管232SA ETHYLENE GLYCOL20-250mg/m3，日本光明理化工业株式会社从1947年开始，在气体分析领域开拓了六十余年 , 形成了驰名于世的 ” 北川 ” 式气体检测管。
详情介绍：
乙二醇HOCH2CH2OH气体检测管232SA
乙二醇HOCH2CH2OH气体检测管232SA，乙二醇HOCH2CH2OH气体检测管232SA ETHYLENE GLYCOL20-250mg/m3，日本光明理化工业株式会社从1947年开始，在气体分析领域开拓了六十余年 , 形成了驰名于世的 ” 北川 ” 式气体检测管。气体快速分析法 ” 北川 ” 的历史就是日本检测管的历史 。目前是世界上*大的检测管生产厂家，也是日本**家通过美国SEI的认证，欧盟的认证的检测管厂家。公司不仅有ISO9001:2000的认证，还获得了环境管理的ISO14001的认证。北川式手动气体采集器AP-20 备有采气完成指示计 , 可以清楚的判明采气是否完成 . • 有专门截留玻璃的截留槽 , 以防止检测管割尖时玻璃片飞溅 . • 有采气容积为 50 毫升和 100 毫升的两段式制动卡 . • 采气器极为小巧 , 并有便于携带的皮具包 。
Tube No.232SA
1. PERFORMANCE
1) Measuring range ：20-250mg/m3
Number of pump strokes ：2(200ml)
2) Sampling time ：1.5 minutes/1 pump stroke
3) Detectable limit ：5mg/m3
4) Shelf life ：2 years
5) Operating temperature ：20～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 2 pump strokes
8) Colour change ：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
250
200ml
mg/m3
50
20
200
150
100
232SA ETHYLENE GLYCOL
Substance Interference Coexistence
Aldehydes Similar stain is produced. Higher readings are given.
Sulphur dioxide 〃〃
Ethylene oxide 〃〃
Hydrogen sulphide Orange/ Pink stain is produced. Accurate measurement can not
be done.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (mg/m3)
Readings 20℃ 22℃ 25℃ 30℃ 40℃
(mg/m3) (68°F) (71.6°F) (77°F) (86°F) (104°F)
250 － 370 250 200 155
200 － 260 200 165 130
150 270 170 150 125 105
100 120 110 100 85 75
50 60 55 50 45 40
30 23 20 20 18 15
1. PERFORMANCE
1) Measuring range ：20-250mg/m3
Number of pump strokes ：2(200ml)
2) Sampling time ：1.5 minutes/1 pump stroke
3) Detectable limit ：5mg/m3
4) Shelf life ：2 years
5) Operating temperature ：20～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 2 pump strokes
8) Colour change ：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
250
200ml
mg/m3
50
20
200
150
100
232SA ETHYLENE GLYCOL
Substance Interference Coexistence
Aldehydes Similar stain is produced. Higher readings are given.
Sulphur dioxide 〃〃
Ethylene oxide 〃〃
Hydrogen sulphide Orange/ Pink stain is produced. Accurate measurement can not
be done.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (mg/m3)
Readings 20℃ 22℃ 25℃ 30℃ 40℃
(mg/m3) (68°F) (71.6°F) (77°F) (86°F) (104°F)
250 － 370 250 200 155
200 － 260 200 165 130
150 270 170 150 125 105
100 120 110 100 85 75
50 60 55 50 45 40
30 23 20 20 18 15