丰满岳乱妇在线观看中字无码,漂亮的保姆5在线观看中文,把我绑在床头上夹奶头视频,免费人做人爱完整版视频

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(cè)管>氣體快速檢測(cè)管>119SA甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

簡(jiǎn)要描述:

甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%,甲醇系結(jié)構(gòu)Z為簡(jiǎn)單的飽和一元醇,化學(xué)式CH3OH。又稱(chēng)“木醇"或“木精"。是無(wú)色有酒精氣味易揮發(fā)的液體。有毒,誤飲5~10毫升能雙目失明,大量飲用會(huì)導(dǎo)致死亡。甲醇易燃,其蒸氣與空氣能形成爆炸混合物,甲醇*燃燒生成二氧化碳和水蒸氣,同時(shí)放出熱量。方程式:2CH3OH+3O2=2CO2+4H2O 工業(yè)制法和儲(chǔ)備工業(yè)上用一氧化碳和氫氣的混合氣(合成氣)在一定的條件下制備甲醇

更新時(shí)間:2025-01-15

在線留言
甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%

Tube 19SA

1. PERFORMANCE
1) Measuring range :0.05-6.0%
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :100 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Yellow orange→Pale green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
0.05
0.1
0.5
1.0
2.0
3.0
4.0
5.0
6.0
%
GAS To pump
DEHUMIDIFIER
(White)
119SA
METHYL ALCOHOL
(METHANOL)
Substance Interference ppm Coexistence
Paraffin (morefi nth haynd Cro3c)arbons FIG.1 Similar stain is produced. Higher readings are given.
Alcohols FIG.2 〃〃
Esters 〃50 〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Reagent is discoloured to If the top of the discolouration can
Halogenated hydrocarbons Brown slightly. ibneg so bist aninoet da,fftehcet eadc.curacy of read-
(NOTE)
Although the top of light green stain changes to Brown gradually, read the concentration on the top of the light
green stain shortly.
0
5
6
3
4
Hexane〔%〕?
FIG.1 Influence of Hexane
Methanol indicating value 〔%〕
0.1 0.2 0.3
2
1
0
5
6
3
4
Ethanol〔%〕?
FIG.2 Influence of Ethanol
Methanol indicating value 〔%〕
0.1 0.2 0.3 0.4 0.5
2
1
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
6.0 6.0 4.3 3.3
5.0 5.0 3.7 2.8
4.0 4.0 3.0 2.3
3.0 5.1 3.0 2.3 1.8
2.0 3.0 2.0 1.6 1.2
1.0 2.7 1.4 1.0 0.8 0.6
0.5 1.0 0.7 0.5 0.4 0.3
0.1 0.1 0.1 0.1 0.1 0.1

婷婷五月综合缴情在线视频| 久久人妻少妇嫩草AV蜜桃| 中文字幕乱码亚洲精品一区 | heyzo无码综合国产精品| 亚洲性视频| 中文字幕久久波多野结衣av| 久久久久久久久精品无码中文字幕| 无码137片内射在线影院| 少妇愉情理伦片高潮电影| 国产欧美精品aaaaaa片| 国产大片免费观看软件| 亚洲狠狠婷婷综合久久久久图片| 亚洲av无码国产在丝袜线观看| 国产综合久久久久| 久久久久久人妻一区精品| 国产精品无码专区在线播放| 欧美午夜精品一区二区蜜桃| 欧美黑人性暴力猛交喷水| 少妇久久久久久久久久| 亚洲va中文字幕无码毛片| 中文字幕精品亚洲无线码二区| 久久久99久久久国产自输拍| 国产精品久久久久av| 欧美激情在线视频| 少妇高潮尖叫声久久a片| 日本免费人成视频在线观看| 国产精品99精品无码视亚| 亚洲精品乱码久久久久久v| 精品无码av一区二区三区不卡| 国产无遮挡无码视频免费软件| 狠狠夜色午夜久久综合热| 97久久精品人人槡人妻人| 久久99精品久久久久久hb无码 | 99国产精品久久99久久久| 麻豆一区二区三区精品视频| 日韩av无码一区二区三区不卡| 老司机午夜私人影院免费| 粗大猛烈进出高潮视频免费看| 国产精品久久无码一区| 亚洲AV无码有乱码在线观看| 免费人成年激情视频在线观看|