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>141SB二硫化碳CS2氣體檢知管141SB CARBON DISULPHIDE 0.8-50ppm

二硫化碳CS2氣體檢知管141SB CARBON DISULPHIDE 0.8-50ppm

簡要描述:

二硫化碳CS2氣體檢測管141SA CARBON DISULPHIDE 0.8-50ppm 30-500ppm,141SB CARBON DISULPHIDE 二硫化碳CS2氣體檢知管141SB CARBON DISULPHIDE 0.8-50ppm,檢測試劑是通過在硅膠或氧化鋁等物質(zhì)表面附著顯色試劑的方法制成的。顯色試劑遇到被檢測氣體時會發(fā)生特定的反應(yīng),而且這種檢測試劑具有相當(dāng)?shù)姆€(wěn)定性。

更新時間:2025-03-10

在線留言
二硫化碳CS2氣體檢知管141SB CARBON DISULPHIDE 0.8-50ppm

二硫化碳CS2氣體檢知管141SB CARBON DISULPHIDE 0.8-50ppm

Tube 41SB
1. PERFORMANCE
1) Measuring range :2-50 ppm 0.8-20 ppm
Number of pump strokes 2(200ml) 4(400ml)
2) Sampling time :4 minutes/2 pump strokes
3) Detectable limit :0.3 ppm(400mr)
4) Shelf life :3 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 2 pump strokes.
8) Colour change :Pink→Yellow
2. RELATIVE STANDARD DEVIATION
C.V-low:10% C.V.-mid.:10% C.V.-high:10%
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
5
2
10
20
30
40
50
ppm
200ml
GAS To pump
(White) (Yellow)
PRETREAT TUBE DETECTOR TUBE
141SB CARBON DISULPHIDE
Substance ppm Interference ppm Coexistence
Sulphur dioxideFIG.1 15 Similar stain is produced. Higher readings are given.
Hydrogen sulphiFdIeG.2 100 〃120 〃
Chlorine Pale pink stain is produced. 〃
(NOTE)
In case of 4 pump strokes, following formula is available for the actual concentration.
Actual concentration = 2/5×Temperature corrected value
0
10
20
30
40
50
5
Sulphur dioxide〔ppm〕?
FIG.1 Influence of Sulphur dioxide
Carbon dioxide
indicating value 〔ppm〕
20 40
Coexistence
Interference
0
10
20
30
40
50
5
Hydrogen sulphide〔ppm〕?
FIG.2 Influence of Hydrogen sulphide
Carbon dioxide
indicating value 〔ppm〕
100 200
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
50 72 59 50 43 38
45 65 54 45 39 34
40 58 48 40 34 30
35 51 42 35 30 26
30 44 36 30 26 22
25 37 30 25 21 18
20 31 25 20 17 14
15 24 19 15 13 10
10 16 12 10 8 7
5 9 7 5 4 3
2 3 3 2 2 1
www.r-biopharm.com.cn

久久精品国产精品亚洲毛片| 久久久久久久综合色一本| 99久久久久99国产免费AV| 国产VIVODESHD精品| 国产风流老太婆大BBBHD视频| 麻豆XXXX乱女少妇精品| 东京热av人妻无码专区| 人妻少妇偷人精品视频| 蜜臀AV人妻久久无码精品麻豆| 欧美乱妇无乱码大黄a片| 国产xxx69麻豆国语对白| 久久午夜夜伦鲁鲁片无码免费| 亚洲国产精品国自产拍AV| 四虎国产精品永久地址| 精品久久久久国产免费| 麻豆AV福利AV久久AV| 免费久久人人爽人人爽av| 欧美又黄又嫩大片a级| 东京无码熟妇人妻av在线网址| 和子发生了性关系的免费视频| 人妻无码熟妇乱又伦精品| 无码欧美熟妇人妻影院欧美潘金莲| 免费网站观看www免费下载| 亚洲女人被黑人巨大进入| 国产激情精品一区二区三区| gogogo日本免费观看| 少妇精品揄拍高潮少妇| 亚洲精品久久久久中文字幕二区| 野花日本免费观看高清电影8| 中文字幕精品久久久久人妻 | 国产无套精品一区二区| 国产色情精品一区二区| 国产精品99久久久久久AV色戒| 98久久人妻无码精品系列蜜桃| 久久久久亚洲av无码专区电影| 无码国产69精品久久久久网站| 2021少妇久久久久久久久久| 無码一区中文字幕少妇熟女| 88久久精品无码一区二区毛片| 无码国产精品一区二区免费式直播 | 国产免国产免费|