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>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>188U乙酸異戊酯氣體檢測管188U ISOPENTYL ACETATE 10-400ppm

乙酸異戊酯氣體檢測管188U ISOPENTYL ACETATE 10-400ppm

簡要描述:

乙酸異戊酯氣體檢測管188U ISOPENTYL ACETATE 10-400ppm CH3CO2(CH2)2CH(CH3)2 別名:醋酸異戊酯;香蕉油;香蕉水檢測管。色狀: 無色透明液體,較強(qiáng)的新鮮果香,稍甜,有類似熟香蕉、生梨和蘋果樣的氣味。健康危害:蒸氣對眼及上呼吸道粘膜有刺激性。有麻醉作用接觸后出現(xiàn)咳嗽、胸悶、疲乏、限燒灼感。高濃度時(shí),則有頭暈、發(fā)燒感受。脈速、心悸、頭痛、耳鳴、震顫、惡心、食欲喪失??梢鹌つw干燥、皮炎、濕疹。

更新時(shí)間:2025-01-15

在線留言
乙酸異戊酯氣體檢測管188U ISOPENTYL ACETATE 10-400ppm

乙酸異戊酯氣體檢測管188U ISOPENTYL ACETATE 10-400ppm

Tube 88U
1. PERFORMANCE
1) Measuring range :10-400 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :4 ppm
4) Shelf life :1 year
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 :Pale yellow→Pale blue(The top of discoloured layer is Brown, but read at the
top of Pale blue.)
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3CO2(CH2)2CH(CH3)2+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
400
300
200
150
100
50
30
10
100ml
ppm
DEHUMIDIFIER
(White)
????????
188U ISOPENTYL ACETATE
Substance Interference Coexistence
Esters Similar stain is produced. Higher readings are given.
Alcohols FIG.1 〃〃
Ketones 〃〃
Aromatic hydrocarbons Whole reagent is changed to Pale brown. 〃
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)
400 - - 400 240 190 160 140
300 - - 300 200 160 140 120
200 - 360 200 150 125 110 95
150 - 230 150 120 100 90 80
100 - 135 100 85 75 67 60
50 80 60 50 45 40 35 35
30 40 35 30 30 25 25 25
10 10 10 10 10 10 10 10
0
300
400
100
200
50
Methanol〔ppm〕?
FIG.1 Influence of Methanol

国产又爽又黄无码无遮挡在线观看| 午夜亚洲AV永久无码精品| 国产又粗又猛又大爽又黄| 成人毛片100免费观看| 激情五月色综合国产精品| 中文字幕乱码中文乱码51精品| 久久久久久久精品国产亚洲87| 中文无码一区二区三区在线观看| 欧美国产激情二区三区蜜月| 国精无码欧精品亚洲一区| 粗大的内捧猛烈进出小视频| 亚洲熟妇无码一区二区三区| 亚洲欧美日韩一区在线观看| 99久久国产综合精品| 人妻放荡乱绿帽h文| 国产精品9999久久久久| 性过程三级视频视频| 熟睡人妻被讨厌的公侵犯| 99久久无码一区人妻a片| 午夜AV亚洲AV欧美AV| 日本少妇人妻xxxxx18免费| 国偷自产AV一区二区三区接| 最近2019中文字幕MV免费看| 蜜臀精品无码AV在线播放| 色欲av精品人妻一区二区三区| 亚洲国产精品久久无码中文字蜜桃 | 免费久久人人爽人人爽av| 久久大香香蕉国产| 人妻少妇伦在线电影| 国产精品一区二区av麻豆| 善良的嫂子在线观看| 人妻免费久久久久久久了| 亚洲人成网站999久久久综合| 自拍偷在线精品自拍偷无码专区| 秋霞在线看片无码免费| 100国产精品人妻无码| 欧美在线人一区二区三区| 最近2019好看的中文字幕免费| 国产午夜精品一二区理论影院| 日本强好片久久久久久AAA| 又爽又高潮日本少妇a片|