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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>111U叔丁醇 tert-Butanol 三甲基甲醇气体检测管(CH3)3COH 20-500ppm

叔丁醇 tert-Butanol 三甲基甲醇气体检测管(CH3)3COH 20-500ppm

简要描述:

叔丁醇 tert-Butanol 三甲基甲醇,叔丁醇 tert-Butanol 三甲基甲醇气体检测管(CH3)3COH 20-500ppm,111U ETHYL ACETATE (+)检测管尽管有着很多优点,但其准确性如何是决定其是否有使用价值的关键。气体检测管的准确度是随着制造技术的提高,由开始的只能定定性、到半定量,至现在的定量逐步发展而来。当今的制造技术已使准确度达到一般使用要求。

更新时间:2017-08-02

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叔丁醇 tert-Butanol 三甲基甲醇气体检测管(CH3)3COH 20-500ppm

叔丁醇 tert-Butanol 三甲基甲醇,叔丁醇 tert-Butanol 三甲基甲醇气体检测管(CH3)3COH 20-500ppm,111U ETHYL ACETATE (+)

Tube No.111U
1. PERFORMANCE
1) Measuring range :10-1,000 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 :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 :Yellow→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low :10 % RSD-mid.:10 % RSD-high :5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH 3CO 2C 2H 5+Cr 6++H 2SO 4→Cr 3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
111U ETHYL ACETATE
TEMPERATURE CORRECTION COEFFICIENT TABLE
Scale Correction Coefficient (at 20℃)
Readings 10 ℃ 15 ℃ 20 ℃ 25 ℃ 30 ℃ 35 ℃ 40℃
(ppm) (50 °F) (59°F) (68°F) (77 °F) (86°F) (95°F) (104°F )
1,000 1.33 1.17 1.0 0.87 0.74 0.64 0.53
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher reading are given.
Esters 〃〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Whole reagent is discoloured
It the top of brown stain is
Paraffin hydrocarbons clear, the accuracy of
Pale brown.
readings is not affected.
Halogenated hydrocarbons
〃〃
FIG.1
0
200
400
600
800
1000
Trichloroethylene 〔ppm〕
FIG.1 Influence of Trichloroethylene
E thyl acetate indicating value 〔ppm 〕
100 200 300
800 1.38 1.19 1.0 0.86 0.73 0.63 0.53
600 1.40 1.20 1.0 0.86 0.72 0.63 0.53
400 1.40 1.20 1.0 0.85 0.70 0.58 0.46
200 1.40 1.20 1.0 0.84 0.68 0.55 0.42
100 1.50 1.25 1.0 0.81 0.62 0.48 0.33
50 1.50 1.25 1.0 0.77 0.54 0.43 0.32
30 1.50 1.25 1.0 0.77 0.53 0.42 0.30
10 1.50 1.25 1.0 0.75 0.50 0.40 0.30
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