产品详情
简单介绍：
乙酸甲酯/醋酸甲酯CH2=CHCO2CH3气体检测管211U
乙酸甲酯/醋酸甲酯CH2=CHCO2CH3气体检测管211U ，乙酸甲酯/醋酸甲酯CH2=CHCO2CH3气体检测管211U METHYL ACRYLATE 2-60ppm，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：
乙酸甲酯/醋酸甲酯CH2=CHCO2CH3气体检测管211U
乙酸甲酯/醋酸甲酯CH2=CHCO2CH3气体检测管211U ，乙酸甲酯/醋酸甲酯CH2=CHCO2CH3气体检测管211U METHYL ACRYLATE 2-60ppm，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.211U
1. PERFORMANCE
1) Measuring range ：5-60 ppm
Number of pump strokes 2(200ml)
2) Sampling time ：3 minutes/2 pump strokes
3) Detectable limit ：0.5 ppm
4) Shelf life ：2 years
5) Operating temperature ：0～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 2 pump strokes
8) Colour change ：Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low：15％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH2＝CHCO2CH3＋Cr6＋＋H2SO4→Cr3＋
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
5
10
20
40
60
ppm
200ml
GAS To pump
DEHUMIDIFIER
(White)
211U METHYL ACRYLATE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
60 88 70 60 54 48
40 54 46 40 36 32
20 28 24 20 18 16
10 14 12 10 9 8
5 7 6 5 4 3
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Paraffin hydrocarbons (more than C3) FIG.2 Whole reagent is changed to dark Brown. 〃
Halogenated hydrocarbons 〃〃
Esters 〃〃
Aromatic hydrocarbons FIG.1 〃〃
0
20
30
10
50
60
40
80
100
90
70
Toluene〔ppm〕?
FIG.1 Influence of Toluene
Methyl acrylate
indicating value 〔ppm〕
10 20 30 40 50 0
20
30
10
50
60
40
80
100
90
70
Hexane〔ppm〕?
FIG. 2 Influence of Hexane
1. PERFORMANCE
1) Measuring range ：5-60 ppm
Number of pump strokes 2(200ml)
2) Sampling time ：3 minutes/2 pump strokes
3) Detectable limit ：0.5 ppm
4) Shelf life ：2 years
5) Operating temperature ：0～40℃
6) Temperature compensation ：Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading ：Direct reading from the scale calibrated by 2 pump strokes
8) Colour change ：Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low：15％ RSD-mid.：10％ RSD-high：10％
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH2＝CHCO2CH3＋Cr6＋＋H2SO4→Cr3＋
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
5
10
20
40
60
ppm
200ml
GAS To pump
DEHUMIDIFIER
(White)
211U METHYL ACRYLATE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
60 88 70 60 54 48
40 54 46 40 36 32
20 28 24 20 18 16
10 14 12 10 9 8
5 7 6 5 4 3
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Paraffin hydrocarbons (more than C3) FIG.2 Whole reagent is changed to dark Brown. 〃
Halogenated hydrocarbons 〃〃
Esters 〃〃
Aromatic hydrocarbons FIG.1 〃〃
0
20
30
10
50
60
40
80
100
90
70
Toluene〔ppm〕?
FIG.1 Influence of Toluene
Methyl acrylate
indicating value 〔ppm〕
10 20 30 40 50 0
20
30
10
50
60
40
80
100
90
70
Hexane〔ppm〕?
FIG. 2 Influence of Hexane