国产激情久久久久影院老熟女,亚洲av午夜精品无码专区,欧美熟妇另类久久久久久多毛,国产精品户外野外

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>141SA二硫化碳CS2氣體檢測管141SA CARBON DISULPHIDE 30-500ppm

二硫化碳CS2氣體檢測管141SA CARBON DISULPHIDE 30-500ppm

簡要描述:

二硫化碳CS2氣體檢測管141SA CARBON DISULPHIDE 30-500ppm,在對檢測目標氣體進行檢測時,先將檢測管兩端切斷,通過采集器將一定量需要檢測的氣體抽入檢測管內(nèi),檢測管內(nèi)就會立刻與檢測試劑發(fā)生反應(yīng),并出現(xiàn)顏色的變化。通過變化層所在的相應(yīng)位置,讀取該氣體的濃度。

更新時間:2025-10-20

在線留言
二硫化碳CS2氣體檢測管141SA CARBON DISULPHIDE 30-500ppm

二硫化碳CS2氣體檢測管141SA CARBON DISULPHIDE 30-500ppm

Tube No.
1. PERFORMANCE
1) Measuring range :30-500 ppm
Number of pump strokes 1(100ml)
2) Sampling time :2 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :2 years(Necessary to store in a refrigerated place ; 0~10℃)
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 :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD.-mid.:5% RSD.-high:5%
3. CHEMICAL REACTION
Sulphur dioxide is produced by an Oxidizer.
By reacting between this Sulphur dioxide and alkali,
PH indicator is discoloured.
CS2+CrO3+H2SO4→SO2
SO2+2NaOH→Na2SO3+H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
30
50
100
150
200
250
300
350
400
450
500
GAS To pump
(White) (Yellow)
PRETREAT TUBE DETECTOR TUBE
141SA CARBON DISULPHIDE
Substance ppm Interference ppm Coexistence
Sulphur dioxideFIG.1 500 Similar stain is produced. Higher readings are given.
Hydrogen sulphFidIGe.2 400 〃400 〃
Chlorine White stain is produced. 〃
0
500
400
300
200
100
Sulphur dioxide〔ppm〕?
FIG.1 Influence of Sulphur dioxide
Carbon disulphide
indicating value 〔ppm〕
100 200
Coexistence
Interference
Coexistence
Interference
0
500
400
300
200
100
Hydrogen sulphide〔ppm〕?
FIG.2 Influence of Hydrogen sulphide
Carbon disulphide
indicating value 〔ppm〕
200 400 600
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
500 600 550 500 490 470
450 540 500 450 440 430
400 480 440 400 390 370
350 420 380 350 340 330
300 360 330 300 290 280
250 300 270 250 240 230
200 240 220 200 190 180
150 180 170 150 140 130
100 120 110 100 95 90
50 60 55 50 50 50
30 35 30 30 30 30
www.r-biopharm.com.cn

亚洲暴爽av天天爽日日碰| 我的漂亮女房东完整版在线韩剧| 中文字幕日韩免费视频看| 母亲とが话しています播放| 91偷拍被偷拍在线播放| 好大好湿好硬顶到了好爽| 99久久99久久久精品齐齐| 中国明星xxxx性裸交| 97精品高清不卡在线视频| 2021午夜福利理论片| 主人在调教室性调教女仆游戏| 在线观看免费视频a v| 久久久久久国产精品免费免费| 精品国产蜜臀九九九久久| 久久久久久无码人妻A∨| 亚洲精品国产自在久久 | 最近2019年中文字幕完整版免费| 国产精品另类激情久久久免费| 午夜精品久久久久久久四虎| 久久爱白丝高清国产精品| 豪妇荡乳1一5潘金莲| 亚洲AV成人无码影视网| 中文字幕人妻无码专区| 精品破处大片掰开逼特写| zoom与牛性胶zoom| 总裁把她的乳尖都吸大了| 亚洲精品无码久久久久yw| 亚洲无限乱码一二三四区| 久久久久精品国产亚洲av无码 | 大炕上和亲亲公个取所需| 被夫上司欺辱的人妻hd中文版| 中文字幕一精品亚洲无线一区| 低喘顶弄学长h双性| 性一交一乱一交a片久久四色| 人人妻人人澡人人爽国产一区| xxxxx性bbbbb欧美| 亚洲午夜无码久久| 高清国产av一区二区三区| 久久夜精品一区二区三区| 把腿扒开做爽爽视频| 熟妇人妻av无码一区二区三区 |