成人毛片无码一区二区三区,亚洲精品成人无码中文毛片,亚洲国产精品尤物yw在线观看,人妻互换精品一区二区

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(duì)檢測目標(biāo)氣體進(jìn)行檢測時(shí),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(huì)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(shí)間:2025-01-15

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

国产午夜福利精品一区二区三区| 精品国产第一国产综合精品| 浪荡女天天不停挨CAO日常视频| 欧美人与禽Z0ZO牲伦交| 国产成人无码免费视频在线| 一本一道久久综合狠狠老| 久久久无码精品亚洲日韩按摩| 人妻无码熟妇乱又伦精品| A片欧美激情肉欲高潮| 日本熟妇乱妇熟色a片蜜桃| 拔萝卜高清在线视频观看| 亚洲欧美中文日韩在线V日本| 一本一道人人妻人人妻ΑV| 亚洲性猛交xxxx| 久久亚洲AV成人无码国产最大| 国产精品国色综合久久| 我被继夫添我阳道舒服视频| 日本三级丰满邻居人妻视频| 男人女人视频| 97无人区夜夜夜爽涩日本无码| 热re99久久精品国产99热| 亚洲最大天堂无码精品区| 亚洲av无码一区二区三区乱子伦| 中文字幕久久久久久精品| 日本熟妇乱人伦A片免费高清| 国产精品国产三级在线专区| 亚洲国产无线码在线观看| 亚洲AV成人一区二区三区AV | 777午夜精品久久av蜜臀| 日韩精品a片一区二区三区| 精品无码久久久久国产| 18禁美女黄网站色大片免费观看 | 国产欧美一区二区精品性色| 在线a级毛片免费观看| 亚洲精品99久久久久中文字幕| 欧美乱大交xxxxx疯狂俱乐部| 99这里只有精品| 日本最新免费二区三区| 三a级做爰片免费观看| 一本久道中文无码字幕av | 国产成人无码精品久久久|