丰满岳乱妇在线观看中字无码,漂亮的保姆5在线观看中文,把我绑在床头上夹奶头视频,免费人做人爱完整版视频

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,而且這種檢測試劑具有相當?shù)姆€(wěn)定性。

更新時間:2025-01-15

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

日本aⅴ精品中文字幕| 久久久久久久精品国产怎么下| 又粗又硬又大又爽免费视频播放 | 欧美精品色婷婷五月综合| 色欲综合视频天天天| 日韩人妻无码精品无码中文字幕| 国模少妇一区二区三区| 国产成人无码专区| 69xxxx日本老师| 精品性高朝久久久久久久| 无码人妻少妇久久中文字幕| 亚洲欧美激情精品一区二区| 久久人妻少妇嫩草av无码| 人妻人人做人做人人爱| 韩国三级大全久久网站| 亚洲无码一区二区三区| 日韩人妻一区二区三区免费 | 国产剧情av麻豆香蕉精品| 99久热在线精品视频观看| 国产男女无遮挡猛进猛出| 亚洲av无码一区二区三区dv| 国产又粗又猛又黄又爽无遮挡| 久久久久久久女国产乱让韩| 亚洲av无码av吞精久久| 国产婷婷一区二区三区| 日韩av高清无码| 亚洲男同志网站| 国产精品久久久久久岛| 99久久国产综合精品成人影院| 久久精品丝袜高跟鞋| 久久综合噜噜激激的五月天| 欧美亚洲日韩国产区一| 在线观看免费a∨网站| 最近中文字幕完整在线看一| 色欲人妻综合aaaaaaaa网| 中国GAY片男同志免费网站| 一个人在线观看视频的免费| 欧美性稚交6-12| 欧美xxxx黑人又粗又长精品| 人妻无码第一区二区三区| 日本孕妇大胆孕交无码|