精品国产乱子伦一区二区三区,免费无码又色又爽的视频软件,亚洲AV无码成人精品区,99国产精品国产精品九九

產(chǎn)品列表PRODUCTS LIST

砷檢知管 ARSINE AsH3 5-160ppm

簡要描述:

砷檢知管 ARSINE AsH3 5-160ppm,氣體檢測管是用來檢測某種氣體在某一環(huán)境中所含濃度的簡易檢測裝置,通過檢測劑與被檢測氣體的反應而出現(xiàn)顏色變化,來表示所測環(huán)境中的氣體濃度。在不用任何能源、電源的情況下,具有操作簡單、使用范圍廣、檢測準確、即時性強和經(jīng)濟的特點。

更新時間:2024-10-30

在線留言
砷檢知管 ARSINE AsH3 5-160ppm

砷檢知管 ARSINE AsH3 5-160ppm

Tube No.
1. PERFORMANCE
1) Measuring range :0.05-5.0%
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 :Yellowish orange→Pale green(The top of discoloured lauer is Brown, but read
at the top Pale green.)
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
C2H5OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
5.0
4.0
3.0
2.0
1.0
0.5
0.1
0.05
%
DEHUMIDIFIER
(White)
????????
??????
?? ?? ??
104SA
ETHYL ALCOHOL
(ETHANOL)
Substance Interference Coexistence
Paraffin hydrocarbons
(over C3) Similar stain is produced. Higher reading are given.
Alcohols 〃〃
Esters 〃〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
If the top of discolouration by
Halogenated hydrocarbons Pale brown stain is produced. Ethanol can be obtained, the
accuracy of readings is not
affected.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
5.0 - - 5.0 3.9 3.2
4.0 - - 4.0 3.2 2.6
3.0 - - 3.0 2.4 2.0
2.0 - - 2.0 1.6 1.3
1.0 - 1.9 1.0 0.8 0.7
0.5 - 0.8 0.5 0.4 0.3
0.3 0.9 0.4 0.3 0.3 0.2
0.1 0.1 0.1 0.1 0.1 0.1
www.r-biopharm.com.cn

自慰走绳playy荡学院| 亚洲 自拍 另类小说综合图区| 玩弄白嫩少妇XXXXX性| 女公务员人妻呻吟求饶| 女人被强╳到高潮喷水在线观看| 我的漂亮女房东韩剧完整版| 最近中文字幕高清中文字幕无| 99精产三产区区别| 律师事务所在线咨询免费| 国产精品久久久久AV麻豆| 亚洲人成色777777在线观看| 极品少妇被猛得白浆直流草莓视频| 国产我和岳拇看A片| 一本色道婷婷久久欧美| 女同学浮乱系列合集| 精品少妇人妻AV一区二区三区| 校草被全校男生调教沦为奴| 高H猛烈失禁潮喷A片在线观看| 精品少妇人妻AV无码专区偷人| AV电影在线观看| 适合晚上一个人看B站软件| 麻豆E奶女教师国产精品| 亚洲色熟女图激情另类图区| 姐妹5免费观看完整版国语| 精品国产一二三产品区别在哪| 天天躁日日躁狠狠躁AV麻豆男男| 大陆农村妇女老BBWBBW| 久久人做人爽一区二区三区| 欧美精品一区二区少妇免费A片| 火车上荫蒂添的好舒服视频| 啦啦啦中文免费视频高清观看| 欧美性猛交XXXX黑人猛交| 精品日产高清卡1卡2区别在哪里| 18禁裸男晨勃露J毛免费观看| 公与2个熄乱理在线播放| 国产做A爰片久久毛片A片白丝| 女性私密紧致按摩| 国产99久久久国产精品~~牛| 熟妇女人妻丰满少妇中文字幕| 免费人成视频在线观看| 成年女性和成年男性BMI|