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简单介绍:
糠醇C4H3OCH2OH气体检测管238S
糠醇C4H3OCH2OH气体检测管238S,糠醇C4H3OCH2OH气体检测管238S FURFURYL ALCOHOL 2-25ppm,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:
糠醇C4H3OCH2OH气体检测管238S
糠醇C4H3OCH2OH气体检测管238S,糠醇C4H3OCH2OH气体检测管238S FURFURYL ALCOHOL 2-25ppm,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.238S
1. PERFORMANCE
1) Measuring range :2-25 ppm
Number of pump strokes 5(500ml)
2) Sampling time :5 minutes/5 pump strokes
3) Detectable limit :0.5 ppm
4) Shelf life :1 year
5) Operating temperature :10~40℃
6) Operating Humidity :Not affected at 20~90%RH
7) Reading :Direct reading from the scale calibrated by 5 pump strokes
8) Colour change :White→Black
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Chromic acid, Polymer is produced.
4. CALIBRATION OF THE TUBE
DIFFUSION TUBE METHOD
????
????
GAS To pump
25
20
15
10
5
2
500ml
ppm
(White)
DEHUMIDIFIER
238S FURFURYL ALCOHOL
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 - - 60 35 25
50 - - 50 30 22
40 - 80 40 25 15
30 - 50 30 20 10
20 50 30 20 14 7
15 30 20 15 10 5
10 15 12 10 7 3
5 7 6 5 4 2
2 2 2 2 2 2
1. PERFORMANCE
1) Measuring range :2-25 ppm
Number of pump strokes 5(500ml)
2) Sampling time :5 minutes/5 pump strokes
3) Detectable limit :0.5 ppm
4) Shelf life :1 year
5) Operating temperature :10~40℃
6) Operating Humidity :Not affected at 20~90%RH
7) Reading :Direct reading from the scale calibrated by 5 pump strokes
8) Colour change :White→Black
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Chromic acid, Polymer is produced.
4. CALIBRATION OF THE TUBE
DIFFUSION TUBE METHOD
????
????
GAS To pump
25
20
15
10
5
2
500ml
ppm
(White)
DEHUMIDIFIER
238S FURFURYL ALCOHOL
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 - - 60 35 25
50 - - 50 30 22
40 - 80 40 25 15
30 - 50 30 20 10
20 50 30 20 14 7
15 30 20 15 10 5
10 15 12 10 7 3
5 7 6 5 4 2
2 2 2 2 2 2