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首頁>產品中心>日本光明北川式氣體檢測管>氣體快速檢測管>139SB乙酸異丙酯/醋酸異丙酯氣體檢測管139SB 0.01-1.2%

乙酸異丙酯/醋酸異丙酯氣體檢測管139SB 0.01-1.2%

簡要描述:

乙酸異丙酯/醋酸異丙酯氣體檢測管 0.01-1.2%,CH3CO2CH(CH3)2,分子式 C5H10O2;CH3COOCH(CH3)2 外觀與性狀 無色透明液體,有果子樣的芳香氣味,危險特性:易燃,其蒸氣與空氣可形成爆炸性混合物。遇明火、高熱能引起燃燒爆炸。與氧化劑能發生強烈反應。其蒸氣比空氣重,能在較低處擴散到相當遠的地方,遇明火會引著回燃。139SB ISOPROPYL ACETATE (+)

更新時間:2025-01-08

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乙酸異丙酯/醋酸異丙酯氣體檢測管139SB 0.01-1.2%

乙酸異丙酯/醋酸異丙酯氣體檢測管139SB 0.01-1.2%

Tube 39SB
1. PERFORMANCE
1) Measuring range :0.01-1.4%
Number of pump strokes 2(200ml)
2) Sampling time :4 minutes/2 pump strokes
3) Detectable limit :10 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Methyl ethyl ketone at 2 pump
strokes and Isobutyl acetate concentration is determined by using a conversion chart.
7) Colour change :Orange→Pale brownish green
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3CO2CH2CH(CH3)2+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.4
1.2
1.0
0.8
0.6
0.4
0.3
0.2
0.1
0.05
0.01
%
139SB C ISOBUTYL ACETATE
39SB Tube reading (%)?
Isobutyl acetate(%)?
1.0
0.8
0.6
1.4
1.2
0.4
0.2
0.1
0.05
0.01 0.01
0.1
0.2
0.5
1.0
1.4
(200mR)?
Substance Interference ppm Coexistence
Acetylene 3% Whole reagent is changed to Pale
brown.
Propane 0.2% 〃
Other organic gases or vapours Similar stain is produced.
except Halogenated hydrocar- 50 Higher readings are given.