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簡單介紹：
乙二醇HOCH2CH2OH氣體檢測管232SB
乙二醇HOCH2CH2OH氣體檢測管232SB，乙二醇HOCH2CH2OH氣體檢測管232SB ETHYLENE GLYCOL 3-40mg/m3，日本光明理化工業(yè)株式會社從1947年開始，在氣體分析領域開拓了六十余年 , 形成了馳名于世的 ” 北川 ” 式氣體檢測管
詳情介紹：
乙二醇HOCH2CH2OH氣體檢測管232SB
乙二醇HOCH2CH2OH氣體檢測管232SB，乙二醇HOCH2CH2OH氣體檢測管232SB ETHYLENE GLYCOL 3-40mg/m3，日本光明理化工業(yè)株式會社從1947年開始，在氣體分析領域開拓了六十余年 , 形成了馳名于世的 ” 北川 ” 式氣體檢測管。氣體快速分析法 ” 北川 ” 的歷史就是日本檢測管的歷史 。目前是世界上*大的檢測管生產(chǎn)廠家，也是日本**家通過美國SEI的認證，歐盟的認證的檢測管廠家。公司不僅有ISO9001:2000的認證，還獲得了環(huán)境管理的ISO14001的認證。北川式手動氣體采集器AP-20 備有采氣完成指示計 , 可以清楚的判明采氣是否完成 . • 有專門截留玻璃的截留槽 , 以防止檢測管割尖時玻璃片飛濺 . • 有采氣容積為 50 毫升和 100 毫升的兩段式制動卡 . • 采氣器極為小巧 , 并有便于攜帶的皮具包 。
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