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首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測(cè)管>氣體快速檢測(cè)管>111U正癸烷CH3(CH2)8CH3氣體檢測(cè)管111U n-Decane 5-90ppm

正癸烷CH3(CH2)8CH3氣體檢測(cè)管111U n-Decane 5-90ppm

簡(jiǎn)要描述:

111U ETHYL ACETATE (+)CH3(CH2)8CH3 (正)癸烷;正十烷;n-Decane 5-90ppm,乙酸乙酯氣體檢測(cè)管111U,正癸烷CH3(CH2)8CH3氣體檢測(cè)管111U n-Decane 5-90ppm,但是,傳統(tǒng)上依靠人鼻嗅辨為主要環(huán)節(jié)的“三點(diǎn)式臭袋法",存在受個(gè)體因素影響大(鼻子的嗅覺(jué)疲勞、易受有毒臭氣傷害等)和效率不高(需7人一組多輪嗅辨)的弱點(diǎn),實(shí)際操作比較繁瑣。

更新時(shí)間:2024-12-18

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正癸烷CH3(CH2)8CH3氣體檢測(cè)管111U n-Decane 5-90ppm

正癸烷CH3(CH2)8CH3氣體檢測(cè)管111U n-Decane 5-90ppm

Tube 11U
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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