产品详情
简单介绍:
二甲胺(CH3)2NH气体检测管227S
二甲胺(CH3)2NH气体检测管227S ,二甲胺(CH3)2NH气体检测管227S Dimethyl amine 1-20ppm,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:
二甲胺(CH3)2NH气体检测管227S
二甲胺(CH3)2NH气体检测管227S ,二甲胺(CH3)2NH气体检测管227S Dimethyl amine 1-20ppm,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.
1. PERFORMANCE
1) Measuring range :1-20 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Pale purple→Pale yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Phosphoric acid, PH indicator is discoloured.
(CH3)2NH+H3PO4→(CH3NH3)2HPO4
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
20
18
16
14
12
10
8 6 4 2 1
100ml
ppm
DEHUMIDIFIER
(White)
????
227S DIMETHYL AMINE
Substance Interference Coexistence
Ammonia Similar stain is produced. Higher readings are given.
Other Amines 〃〃
1. PERFORMANCE
1) Measuring range :1-20 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :Pale purple→Pale yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Phosphoric acid, PH indicator is discoloured.
(CH3)2NH+H3PO4→(CH3NH3)2HPO4
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
20
18
16
14
12
10
8 6 4 2 1
100ml
ppm
DEHUMIDIFIER
(White)
????
227S DIMETHYL AMINE
Substance Interference Coexistence
Ammonia Similar stain is produced. Higher readings are given.
Other Amines 〃〃