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简单介绍：
砷化氢气体检测管 121U
砷化氢气体检测管 121U，砷化氢气体检测管 121U ARSINE AsH3 0.05-2ppm，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
详情介绍：
砷化氢气体检测管 121U
砷化氢气体检测管 121U，砷化氢气体检测管 121U ARSINE AsH3 0.05-2ppm，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.121U
1. PERFORMANCE
1) Measuring range ：0.1-2.0 ppm 0.05-0.5 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time ：1 minute/1 pump stroke
3) Detectable limit ：0.02 ppm(200ml)
4) Shelf life ：2 years
5) Operating temperature ：0～40℃
6) Reading ：Although the scale of this tube is calibrated based on Phosphine at 1 pump
stroke, the sensitivity of Arsine is completely same.
7) Colour change ：Pale yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：5％
3. CHEMICAL REACTION
By reacting with Mercury chloride(II), Hydrogen chloride is produced and PH indicator is discoloured.
AsH3＋HgCI2→As(HgCI)3＋HCI
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
0.1
0.3
0.5
1.0
1.5
2.0
ppm
100ml
GAS To pump
121U ARSINE
Substance Interference Coexistence
Hydrogen selenide Similar stain is produced. Higher readings are given.
Mercaptans 〃〃
Hydrogen sulphide 〃〃
Hydrogen cyanide Whole reagent is changed to Red. 〃
Whole reagent is changed toPale red,
Sulphur dioxide but Purplish red stainindicates Arsine 〃
concentration.
(NOTE)
This tube scale is calibrated based on Phosphine and the same scale is available for Arsine.
When the concentration is below 0.5 ppm , 2 pump strokes can be used to detemine the lower concentration.
Following formula is available for the actual concentration.
Actual concentration＝1/2×Reading value
1. PERFORMANCE
1) Measuring range ：0.1-2.0 ppm 0.05-0.5 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time ：1 minute/1 pump stroke
3) Detectable limit ：0.02 ppm(200ml)
4) Shelf life ：2 years
5) Operating temperature ：0～40℃
6) Reading ：Although the scale of this tube is calibrated based on Phosphine at 1 pump
stroke, the sensitivity of Arsine is completely same.
7) Colour change ：Pale yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：5％
3. CHEMICAL REACTION
By reacting with Mercury chloride(II), Hydrogen chloride is produced and PH indicator is discoloured.
AsH3＋HgCI2→As(HgCI)3＋HCI
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
0.1
0.3
0.5
1.0
1.5
2.0
ppm
100ml
GAS To pump
121U ARSINE
Substance Interference Coexistence
Hydrogen selenide Similar stain is produced. Higher readings are given.
Mercaptans 〃〃
Hydrogen sulphide 〃〃
Hydrogen cyanide Whole reagent is changed to Red. 〃
Whole reagent is changed toPale red,
Sulphur dioxide but Purplish red stainindicates Arsine 〃
concentration.
(NOTE)
This tube scale is calibrated based on Phosphine and the same scale is available for Arsine.
When the concentration is below 0.5 ppm , 2 pump strokes can be used to detemine the lower concentration.
Following formula is available for the actual concentration.
Actual concentration＝1/2×Reading value