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

国产精品久久久久久久小说| 亚洲 欧美 日韩 国产 高清| 漂亮人妻洗澡被公强| 无码精品视频一区二区三区| 中国a级毛片免费观看| 亚洲欧美自偷自拍另类视| 欧美人妻少妇精品久久黑人| 亚洲看片lutube在线观看| 国产最好看的级SUV卡毛| 国产AV国片偷人妻麻豆| 亚洲精华国产精华精华液网站| 精品久久久久久无码人妻热| 丰满熟女人妻大乳波多野吉衣| 国产强被迫伦姧在线观看无码| 亚洲色欲色欲大片www无码| 亚洲va韩国va欧美va| 熟妇女人妻丰满少妇中文字幕| 亚洲精品国产精品国自产| 久久久噜噜噜久久中文字幕色伊伊| 亚欧色一区w666天堂| 国产SUV精品一区二人妻| 国产XXXX做受视频国语对白L| 欧美FREESEX黑人又粗又大 | 最近中文字幕完整版免费视频| 久久无码人妻一区二区三区| 国产又黄又大又粗的视频| 国产精品夜夜春夜夜爽久久小| 一本色道久久88加勒比—综合| 久久精品AⅤ无码中文字字幕| yw尤物av无码国产在线观看| 欧美午夜精品一区二区蜜桃| 亚洲人成无码WWW久久久| 国产熟女一区二区三区四区五区| 最近中文字幕在线看免费完整版| 亚洲JIZZJIZZ中国少妇| 久久久久日本精品无码天美传媒| 久久亚洲精品无码A片大香大香| 中文字幕日韩欧美一区二区三区| 性xxxx视频播放免费| 久久久精品中文字幕麻豆发布| 久久精品欧美人ooxx|