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简单介绍：
异丙叉丙酮CH3COCH=C(CH3)2气体检测管190U
异丙叉丙酮CH3COCH=C(CH3)2气体检测管190U，异丙叉丙酮CH3COCH=C(CH3)2气体检测管190U MESITYL OXIDE 5-100ppm，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：
异丙叉丙酮CH3COCH=C(CH3)2气体检测管190U
异丙叉丙酮CH3COCH=C(CH3)2气体检测管190U，异丙叉丙酮CH3COCH=C(CH3)2气体检测管190U MESITYL OXIDE 5-100ppm，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.190U
GAS To pump
500
400
100
50
20
5
300
200
150
300ml
ppm
(White)
DEHUMIDIFIER
1. PERFORMANCE
1) Measuring range ：5-100 ppm
Number of pump strokes 2(200ml)
2) Sampling time ：3 minutes/2 pump strokes
3) Detectable limit ：1 ppm
4) Shelf life ：2 years
5) Operating temperature ：0～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Graduations printed on the tube are calibrated by Ethyl cellosolve at 3 pump strokes
and Mesityl oxide is determined by using a conversion chart.
8) Colour change ：Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3COCH＝C(CH3)2＋Cr6＋＋H2SO4→Cr3＋
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
190U C MESITYL OXIDE
TEMPERATURE CORRECTION TABLE
Conver. Corrected Concentration (ppm)
value 0℃ 10℃ 20℃～40℃
(ppm) (32°F) (50°F) (68°F) (104°F)
100 － － 100
80 － 95 80
60 100 70 60
40 60 45 40
20 30 25 20
10 15 12 10
5 7 6 5
Substance ppm Interference ppm Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Toluene 200 Whole reagent is discoloured 500 The top of discoloured layer
to Brown. becomes unclear.
Hexane The accracy of reading is not less than The accracy of reading is not
affected. 1,000ppm affected.
Ethyl Acetate 〃〃
Trichloroethylene 〃〃
No.190U Tube reading (ppm)?
(200mR)?
Mesityl oxide(ppm)?
500
400
300
200
100
50
20
5
5
40
60
10
20
80
100
GAS To pump
500
400
100
50
20
5
300
200
150
300ml
ppm
(White)
DEHUMIDIFIER
1. PERFORMANCE
1) Measuring range ：5-100 ppm
Number of pump strokes 2(200ml)
2) Sampling time ：3 minutes/2 pump strokes
3) Detectable limit ：1 ppm
4) Shelf life ：2 years
5) Operating temperature ：0～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Graduations printed on the tube are calibrated by Ethyl cellosolve at 3 pump strokes
and Mesityl oxide is determined by using a conversion chart.
8) Colour change ：Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3COCH＝C(CH3)2＋Cr6＋＋H2SO4→Cr3＋
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
190U C MESITYL OXIDE
TEMPERATURE CORRECTION TABLE
Conver. Corrected Concentration (ppm)
value 0℃ 10℃ 20℃～40℃
(ppm) (32°F) (50°F) (68°F) (104°F)
100 － － 100
80 － 95 80
60 100 70 60
40 60 45 40
20 30 25 20
10 15 12 10
5 7 6 5
Substance ppm Interference ppm Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Toluene 200 Whole reagent is discoloured 500 The top of discoloured layer
to Brown. becomes unclear.
Hexane The accracy of reading is not less than The accracy of reading is not
affected. 1,000ppm affected.
Ethyl Acetate 〃〃
Trichloroethylene 〃〃
No.190U Tube reading (ppm)?
(200mR)?
Mesityl oxide(ppm)?
500
400
300
200
100
50
20
5
5
40
60
10
20
80
100