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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>139U甲基丙基酮CH3CO(CH2)2CH3气体检测管139U METHYL PROPYL KETONE

甲基丙基酮CH3CO(CH2)2CH3气体检测管139U METHYL PROPYL KETONE

简要描述:

甲基丙基酮CH3CO(CH2)2CH3气体检测管139U METHYL PROPYL KETONE 20-1500ppm,别 名 2-戊酮,CAS号 107-87-9,健康危害:本品对粘膜具有刺激作用,高浓度可致麻醉。吸入后引起上呼吸刺激、头痛、头晕、恶心、呕吐、嗜睡、昏迷。对眼及皮肤有刺激性。未见慢性中毒病例。长期接触可致皮炎。

更新时间:2017-07-16

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甲基丙基酮CH3CO(CH2)2CH3气体检测管139U METHYL PROPYL KETONE

甲基丙基酮CH3CO(CH2)2CH3气体检测管139U METHYL PROPYL KETONE 20-1500ppm

Tube No.139U
1. PERFORMANCE
1) Measuring range :20-1,500 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 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→Pale blue(The top of discoloured layer is Brown.)
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3COC2H5+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
20
50
100
200
500
1000
1500
ppm
GAS To pump
DEHUMIDIFIER
(White)
139U METHYL ETHYL KETONE
Substance Interference Coexistence
Alcohols Similar or Brown stain is produced. Higher readings are given.
Esters 〃〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Whole reagent is changed to Brown,
Halogenated hydrocarbons but if the top of Pale blue stain is clear,
FIG.2 the reading can be obtained.
Paraffin hydrocarbons FIG.1 〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃ 40℃
(ppm) (50°F) (59°F) (68°F) (77°F) (86°F) (95°F) (104°F)
1,500 2,050 1,750 1,500 1,280 1,100 940 820
1,000 1,430 1,200 1,000 850 720 620 530
500 750 620 500 430 360 320 280
200 300 250 200 170 140 120 110
100 160 120 100 90 70 60 50
50 80 60 50 40 30 30 20
20 30 30 20 20 10 10 10
0
1200
1400
800
400
600
1000
Hexane〔ppm〕�
FIG.1 Influence of Hexane
Methyl ethyl ketone
indicating value 〔ppm〕
100 200 300 400 500
200
0
1200
1400
800
400
600
1000
Trichloroethylene〔ppm〕�
FIG.2 Influence of Trichloroethylene

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