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简单介绍：
乙二醇HOCH2CH2OH气体检测管232SB
乙二醇HOCH2CH2OH气体检测管232SB，乙二醇HOCH2CH2OH气体检测管232SB ETHYLENE GLYCOL 3-40mg/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232SB
乙二醇HOCH2CH2OH气体检测管232SB，乙二醇HOCH2CH2OH气体检测管232SB ETHYLENE GLYCOL 3-40mg/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.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
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