环己烷C6H12气体检测管 115S
环己烷C6H12气体检测管 115S,环己烷C6H12气体检测管 115S CYCLOHEXANE 0.01-0.6%,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 。目前是世界上最大的检测管生产厂家,也是日本第一家通过美国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 。
1. PERFORMANCE
1) Measuring range :0.01-0.6%
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :50 ppm
4) Shelf life :3 years
5) Operating temperature :10~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Orange→Dark green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
C6H12+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
0.6
0.5
0.4
0.3
0.2
0.1
0.05
0.01
%
????
????
Tube No.
115S CYCLOHEXANE
89
Substance Interference ppm Coexistence
Benzene FIG.1 Black stain is produced. 400 Higher readings are given.
Toluene FIG.2 〃800 〃
Xylene 〃2,000 〃
Acetylene WDahrokl eg rleaeyenr. is discoloured to 〃
Ethylene Similar stain is produced. 〃
Paraffin hydrocarbons 〃〃
*In presence of Alcohols, Ketones or Esters less than 6%, the accaracy of readings is not affected.
0
0.1
0.2
0.3
0.4
Benzene〔ppm〕?
FIG.1 Influence of Benzene
Cyclohexane indicating value 〔%〕
200 400 600 0
0.1
0.2
0.3
0.4
Toluene〔ppm〕?
FIG.2 Influence of Toluene