产品列表PRODUCTS LIST

首页>产品中心>日本光明北川式气体检测管>气体快速检测管>119U甲醇气体检测管119U METHYL ALCOHOL 5-300ppm

甲醇气体检测管119U METHYL ALCOHOL 5-300ppm

简要描述:

ClCH2CH2OH 119U METHYL ALCOHOL(METHANOL) (+) 氯乙醇Ethylenechlorohydrin 甲醇气体检测管119U METHYL ALCOHOL 5-300ppm,所谓大气污染的综合防治,就是从区域环境的整体出发,充分考虑该地区的环境特征,对所有能够影响大气质量的各项因素作全面、系统的分析,充分利用环境的自净能力,综合运用各种防治大气污染的技术措施,并在这些措施的基础上制定Z佳的防治措施,以达到控制区域性大气环境质量、消除或减轻大气污染的目的。

更新时间:2017-08-19

发邮件给我们:554328895@qq.com

分享到: 1
在线留言
甲醇气体检测管119U METHYL ALCOHOL 5-300ppm

甲醇气体检测管119U METHYL ALCOHOL 5-300ppm

Tube No.119U

1. PERFORMANCE
1) Measuring range :20-1,000 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :5 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(0~20℃)(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
20
50
100
200
400
600
800
1000
ppm
GAS To pump
DEHUMIDIFIER
(White)
119U
METHYL ALCOHOL
(METHANOL)
Substance Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Esters FIG.2 〃
Paraffin (morefi nth haynd Cro3c)arbons Whole reagent is changed to Brown. 〃
Aromatic hydrocarbons 〃〃
Ketones 〃〃
Halogenated hydrocarbons 〃〃
0
500
1000
Ethanol〔ppm〕�
FIG.1 Influence of Ethanol
Methanol indicating value 〔ppm〕
500
Coexistence
Interference
0
500
1000
Ethyl acetate〔ppm〕�
FIG.2 Influence of Ethyl acetate
Methanol indicating value 〔ppm〕
500
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20-40℃
(ppm) (32°F) (50°F) (68-104°F)
1000 1200 1100 1000
800 960 880 800
600 600 660 600
400 480 440 400
200 240 220 200
100 120 110 100
50 60 50 50

联系人
在线客服
用心服务 成就你我