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

曰本无码人妻丰满熟妇啪啪| 国产精品久久久久精品三级| 亚洲av中文无码乱人伦在线r▽| 精品亚洲av在线无码播放| 国产午夜精品理论片| 无码精品久久久久久人妻中字| 欧美巨大另类极品videosbest| 在线看片国产日韩欧美亚洲| 日本一区二区三区免费更新不卡| 一本色道婷婷久久欧美| 夜夜爽妓女8888视频免费观看| 亚洲av精品一区二区三区| app在线免费观看视频| А√天堂中文在线资源库免费观看 | 无码久久久久久久久| 亚洲一区二区三区日本久久九 | 亚洲AV永久无码精品尤物| あかねさす少女免费| 国产第一页浮力影院| 国产成人精品白浆久久69| 日产PATHFINDER国产| 精品无码人妻一区二区三区18| 亚洲AV无码专区国产乱码电影 | 久久人做人爽一区二区三区| 亚洲欧美日韩精品久久亚洲区| 精品人妻一区二区三区| 精品无码久久久久国产动漫3D| 无码精品a∨在线观看十八禁| 国产视频在线观看| 最新精品国偷自产在线69| 色一情一乱一伦一区二区三区日本 | 亚洲乱色熟女一区二区三区蜜臀| 少妇做爰特黄A片免费看9588| 国产熟女高潮视频| 伊人久久大香线蕉AV影院| 中文字幕亚洲欧美日韩在线不卡| 好硬好大好爽18禁免费看| 久久久久亚洲精品无码网址| 日韩超碰人人爽人人做人人添| 中文字幕 亚洲精品 第1页| 精品黑人一区二区三区久久|