www.cgongxi.com-国产日产久久高清欧美一区WW,国产在线观看无码免费视频,国产日产久久高清欧美一区WW,国模欢欢炮交啪啪150P

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>111U異丙醚[(CH3)2CH]2O氣體檢測管111U Isopropyl ether 30-800ppm

異丙醚[(CH3)2CH]2O氣體檢測管111U Isopropyl ether 30-800ppm

簡(jiǎn)要描述:

乙酸乙酯氣體檢測管,異丙醚[(CH3)2CH]2O氣體檢測管 Isopropyl ether 30-800ppm,中文名稱(chēng)2:二異丙醚,健康危害: 蒸氣或霧對眼睛、粘膜、皮膚和上呼吸道有刺激性。接觸后能引起惡心、頭痛、嘔吐和麻醉作用。皮膚反復接觸,可引起接觸性皮炎。

更新時(shí)間:2024-07-14

在線(xiàn)留言
異丙醚[(CH3)2CH]2O氣體檢測管111U Isopropyl ether 30-800ppm

異丙醚[(CH3)2CH]2O氣體檢測管111U Isopropyl ether 30-800ppm

Tube 11U

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 :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→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3CO2C2H5+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1000
800
600
400
200
100
50
20
?? ??
111U ETHYL ACETATE
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)
1,000 1,330 1,200 1,000 830 700 600 500
800 1,080 950 800 670 550 470 400
600 830 720 600 500 420 380 300
400 570 480 400 330 280 240 200
200 280 240 200 170 140 120 100
100 150 120 100 80 70 60 50
50 70 60 50 40 30 20 10
20 30 25 20 15 10 7 4
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher reading are given.
Esters 〃〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Whole reagent is discoloured to It the top of brown stain is clear,
Paraffin hydrocarbons Pale brown. athffee catcecdu.racy of readings is not
Halogenated hydrocarbons FIG.1 〃〃
0
200
400
600
800
1000
Trichloroethylene〔ppm〕?
FIG.1 Influence of Trichloroethylene

张家川| 屏东市| 上虞市| 靖江市| 成安县| 荥阳市| 佛山市| 敖汉旗| 新平| 平武县| 永城市| 固镇县| 鄱阳县| 余干县| 嘉定区| 牙克石市| 安仁县| 临泉县| 天气| 榆社县| 汕头市| 忻城县| 和政县| 嘉峪关市| 鄂伦春自治旗| 康保县| 工布江达县| 鄱阳县| 南皮县| 木兰县| 阳高县| 马龙县| 都昌县| 吉林市| 寻甸| 绍兴市| 柘荣县| 泌阳县| 桃江县| 株洲县| 孝昌县|