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>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>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(jiǎn)要描述:

二硫化碳CS2氣體檢測(cè)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(cè)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(cè)氣體時(shí)會(huì)發(fā)生特定的反應(yīng),而且這種檢測(cè)試劑具有相當(dāng)?shù)姆€(wěn)定性。

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
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

国产亚洲黄色在线影院| 国产精品久久久久久福利69| 九九免费观看精品视频| 韩国爱情电影年轻的母亲| 国产精品久久小视频| 欧美日韩制服丝袜中文字幕| 国产精品偷窥熟女精品视频| 国产久久久久久久久一区二区| 亚洲一道本中文字幕一区二区| 国产性生活视频免费| 久久久久久女人精品毛片| 国产综合精品久久久久成人蜜臀| 欧美激情一区日韩国产| 女人之爱女同电影中文字幕| 在线无码中文强乱爆乳系列| 国产线精品视频在线观看| 亚洲综合精品欧美日韩一区二区三区91| 亚洲国产精品午夜福利久久| 国产日韩欧美久久综合网| 亚洲欧美都市校园另类| 中国女人free性hd国语| 日日摸夜夜摸狠狠摸婷婷| 欧美国产日韩精品77上位| 97精品国产综合久久久免费| 国产激情作爱在线观看| 免费看中文字幕一级高清| 国产精品23一区二区| 日本不卡久久伊人麻豆传媒| 久久中文字幕人妻熟| 97人妻爽人人爽人人| 日产国产精品久久久久久| 最新99精品视频在线观看| 激情久久三级视频网站| 亚洲国产精品无码久久久高潮| 日本免费一区二区在线观看| 精品国产片亚洲一区| 中文字幕日韩欧美推理片免费观看| 午夜精品人妻一区二区三区| 色婷婷是五月综合色| 亚洲欧美都市校园另类| 欧美成人3p视频在线观看|