精品国产天线2019,色综合久久无码五十路人妻,亚洲熟悉妇女XXX妇女AV,亚洲H在线播放在线观看H

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:2025-03-10

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

国产精品人人妻人人爽| 人妻巨大乳一二三区| 免费看久久妇女高潮A| 国产亚洲精品久久久久| 免费高清视频在线观看| 浪荡人妻(共32部分)| 人妻换人妻仑乱| 人妻 白嫩 蹂躏 惨叫| 久久亚洲av成人无码国产电影 | 国产欧美日韩| 熟女少妇丰满一区二区| 狠狠色综合网站久久久久久久| 亚洲最大成人网站| 中国新疆xxxxxl19免费看| 综合亚洲日韩偷窥另类图片 | 婷婷色啪啪色窝窝一区| 人人妻人人澡人人爽人人精品av| 久久超乳爆乳中文字幕| 亚洲av成人无码精品电影在线 | 精品人妻无码一区二区三区手机版 | 夜夜嗨av一区二区三区| 精品人妻无码一区二区三区换脸| 日本爽快片18禁片免费久久| 精品国产乱码久久久久久郑州公司| 国产成年无码久久久久毛片| 国产精品欧美一区二区三区不卡 | 欧美大荫蒂av高潮| 午夜福利AV无码一区二区| 亚洲精品99久久久久中文字幕| 精品无码黑人又粗又大又长AV | 亚洲heyzo专区无码综合| 日韩欧美aⅴ综合网站发布| 久久久久久AV无码免费网站下载| 免费观看性生交大片| 欧美日韩国产精品自在自线| 久久人妻无码一区二区| 婷婷丁香五月久久综合啪啪图区| 国产露脸精品产三级国产av| 97久久精品人人做人人爽| 成人性生交大片免费看9| 最近中文字幕完整版免费视频|