亚洲中文字幕啪啪一区二区,看亚洲欧洲在线视频,国产福利不卡在线视频,欧美日韩一区二区人妻

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>216S丙酸CH3CH2COOH氣體檢測(cè)管216S PROPIONIC ACID 3-50ppm

丙酸CH3CH2COOH氣體檢測(cè)管216S PROPIONIC ACID 3-50ppm

簡(jiǎn)要描述:

丙酸CH3CH2COOH氣體檢測(cè)管216S PROPIONIC ACID 3-50ppm,健康危害: 吸入本品對(duì)呼吸道有強(qiáng)烈刺激性,可發(fā)生肺水腫。蒸氣對(duì)眼有強(qiáng)烈刺激性,液體可致嚴(yán)重眼損害。皮膚接觸可致灼傷。大量口服出現(xiàn)惡心、嘔吐和腹痛。公共場(chǎng)所:電影院、劇場(chǎng)、商場(chǎng)、飯店和酒店等,體育與休閑:游泳池、訓(xùn)練場(chǎng)、室內(nèi)體育設(shè)施等,環(huán)境:環(huán)保局、疾病預(yù)防控制中心、環(huán)境監(jiān)測(cè)站(大隊(duì))等,突發(fā)性化學(xué)事故:如火災(zāi)、爆炸、毒氣泄漏等,針對(duì)突發(fā)公共衛(wèi)生事件應(yīng)急監(jiān)測(cè)推出的氣體應(yīng)急檢測(cè)箱等。

更新時(shí)間:2025-01-08

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
丙酸CH3CH2COOH氣體檢測(cè)管216S PROPIONIC ACID 3-50ppm

丙酸CH3CH2COOH氣體檢測(cè)管216S PROPIONIC ACID 3-50ppm

Tube No.216S
1. PERFORMANCE
1) Measuring range :1-50 ppm
Number of pump strokes :1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.1 ppm(100ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(0~20℃)(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Pale pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with alkali, PH indicator is discoloured.
HCO2H+NaOH→HCO2Na+H2O
4. CALIBRATION OF THE TUBE
VAPOUR PRESSURE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
50
40
30
20
10
5
13
100ml
ppm
216S FORMIC ACID
Substance ppm Interference ppm Coexistence
Sulphur dioxide Similar stain is produced. HCO2Hconc. ×1/20 Higher readings are given.
Nitrogen dioxide 300 〃10 The top of discoloured layer
becomes unclear.
Hydrogen chloridFeIG.1 Pink stain is produced. HCO×2H2conc. Higher readings are given.
Chlorine FIG.2 Bprluoediusche yde. llow stain is 5 〃
Acetic acid Similar stain is produced. 〃
0
60
10
20
30
40
50
Hydrogen chloride〔ppm〕?
FIG.1 Influence of Hydrogen chloride
Formic acid indicating value 〔ppm〕
100 200 300
Coexistence
Interference
0
60
10
10
20
20
30
30
40
40
50
50
Chlorine〔ppm〕?
FIG.2 Influence of Chlorine
Formic acid indicating value 〔ppm〕
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20~40℃
(ppm) (32°F) (50°F) (68°F)
50 82 60 50
40 57 45 40
30 36 32 30
20 22 21 20
10 10 10 10
5 5 5 5
2 2 2 2
(NOTE)
This tube scale is calibrated based on Acetic acid and the same scale is available for Formic acid.

人人添人人澡五码超碰| 国产精品日本欧美一区二区三区| 美女久久久高潮喷水91| 激情久久三级视频网站| 操久久久久久久久久久久久久久久久| 日韩在线观看一卡二卡| 国产精品内射久久久久| 亚洲区一区二区三区视频| 亚洲国产成人久久精品不卡| 国产精品一区二区无久久久| 精品国产亚洲av麻豆狂野| 国产精品欧美激情青草| 国产精品观看不卡视频| 久久久久久精品无码免费看| 亚洲综合激情另类小说区| 91久久国产福利自产拍| 欧美日韩精品一区丁香| 亚洲岛国av一区二区| 国产精品日韩在线亚洲一区| 中文人妻精品一区在线| 久久99老妇伦国产熟女高清| 国产三级电影精品麻豆| 国产精品观看不卡视频| 欧美日韩激情精品久久久久久| 国产人成尤物在线免费观看| 国产精品久久久久久福利69| 日韩精品一区二区av蜜桃| 国产精品视频二区不卡| 久草视频在线视频在线视频在线观看| 欧美日韩国产精品视频一区| 日韩欧美亚洲中文字幕区在高我| 亚洲人妻一区二区久久| 久久久久人妻精品明星换脸| 久久精一区二区三区| 精品国产污免费网站入口| 国产精品日韩主播无套| 中文人操人人插人免费看视频| 九七成人操碰人人看小视频| 精品极品三级久久久久| 95精品视频在线观看| 久久久成人国产精品麻豆|