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简单介绍:
北川式乙酸异戊酯气体检测管188U
北川式乙酸异戊酯气体检测管188U,乙酸异戊酯气体检测管188U ISOPENTYL ACETATE 10-400ppm,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:
北川式乙酸异戊酯气体检测管188U
北川式乙酸异戊酯气体检测管188U,乙酸异戊酯气体检测管188U ISOPENTYL ACETATE 10-400ppm,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.188U
1. PERFORMANCE
1) Measuring range :10-400 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :4 ppm
4) Shelf life :1 year
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 :Pale yellow→Pale blue(The top of discoloured layer is Brown, but read at the
top of Pale blue.)
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3CO2(CH2)2CH(CH3)2+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
400
300
200
150
100
50
30
10
100ml
ppm
DEHUMIDIFIER
(White)
????????
188U ISOPENTYL ACETATE
Substance Interference Coexistence
Esters Similar stain is produced. Higher readings are given.
Alcohols FIG.1 〃〃
Ketones 〃〃
Aromatic hydrocarbons Whole reagent is changed to Pale brown. 〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃ 40℃
(ppm) (50°F) (59°F) (68°F) (77°F) (86°F) (95°F) (104°F)
400 - - 400 240 190 160 140
300 - - 300 200 160 140 120
200 - 360 200 150 125 110 95
150 - 230 150 120 100 90 80
100 - 135 100 85 75 67 60
50 80 60 50 45 40 35 35
30 40 35 30 30 25 25 25
10 10 10 10 10 10 10 10
0
300
400
100
200
50
Methanol〔ppm〕?
FIG.1 Influence of Methanol
1. PERFORMANCE
1) Measuring range :10-400 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :4 ppm
4) Shelf life :1 year
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 :Pale yellow→Pale blue(The top of discoloured layer is Brown, but read at the
top of Pale blue.)
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3CO2(CH2)2CH(CH3)2+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
400
300
200
150
100
50
30
10
100ml
ppm
DEHUMIDIFIER
(White)
????????
188U ISOPENTYL ACETATE
Substance Interference Coexistence
Esters Similar stain is produced. Higher readings are given.
Alcohols FIG.1 〃〃
Ketones 〃〃
Aromatic hydrocarbons Whole reagent is changed to Pale brown. 〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃ 40℃
(ppm) (50°F) (59°F) (68°F) (77°F) (86°F) (95°F) (104°F)
400 - - 400 240 190 160 140
300 - - 300 200 160 140 120
200 - 360 200 150 125 110 95
150 - 230 150 120 100 90 80
100 - 135 100 85 75 67 60
50 80 60 50 45 40 35 35
30 40 35 30 30 25 25 25
10 10 10 10 10 10 10 10
0
300
400
100
200
50
Methanol〔ppm〕?
FIG.1 Influence of Methanol