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(yè)>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>169S氯丁二烯二CH2=CClCH=CH2氣體檢測(cè)管,169S CHLOROPRENE 0.5-20ppm

氯丁二烯二CH2=CClCH=CH2氣體檢測(cè)管,169S CHLOROPRENE 0.5-20ppm

簡(jiǎn)要描述:

氯丁二烯CH2=CClCH=CH2氣體檢測(cè)管,169S CHLOROPRENE 0.5-20ppm,2-氯丁二烯,臭氧屬于有害氣體,濃度為6.25×10 -6 mol/L(0.3mg/m3 ) 時(shí),對(duì)眼、鼻、喉有刺激的感覺(jué);濃度 (6.25-62.5)×10 -5mol/L(3 ~ 30mg/m3 ) 時(shí),出現(xiàn)頭疼及呼吸器官局部麻痹等癥 ; 臭氧濃度為 3.125×10 -4 ~ 1.25×10-3 mol/L(15 ~ 60mg/m 3 ) 時(shí) , 則對(duì)人體有危害。

更新時(shí)間:2025-04-14

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
氯丁二烯二CH2=CClCH=CH2氣體檢測(cè)管,169S CHLOROPRENE 0.5-20ppm

2-氯丁二烯CH2=CClCH=CH2氣體檢測(cè)管,169S CHLOROPRENE 0.5-20ppm

1. PERFORMANCE
1) Measuring range :1-20 ppm 0.5-10 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time :3 minutes/2 pump strokes
3) Detectable limit :0.01 ppm(200ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(20-40℃)(See"TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 2 pump strokes
8) Colour change :Greenish yellow→Pink
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with an Oxidizer, Hydrogen chloride is produced and PH indicator is discoloured.
CH2=CCICH=CH2+CrO3+H2SO4→HCI
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
DETECTOR TUBE
(White)
(Orange)
PRETREAT TUBE
10
8
6
4
2
1
0.5
ppm
DEHUMIDIFIER
Tube No.
169S CHLOROPRENE
87
Substance Interference ppm Coexistence
Acetylene The accuracy of readings is not affected. 1% Lower readings are given.
Ethylene 〃〃
Hydrogen chloride 1,000 Higher readings are given.
Chlorine Similar stain is produced. 〃
Vinyl chlorine 〃〃
(NOTE)
In case of 1 pump stroke, following formula is available for the actual concentration.
Actual concentration=2×Temperature corrected value.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃-10℃ 30℃ 35℃ 40℃
(ppm) (32-50°F) (86°F) (95°F) (104°F)
16.0 16.0 14.3 13.6 12.1
14.0 14.0 12.6 11.9 10.6
12.0 12.0 11.1 10.5 9.3
10.0 10.0 9.5 9.0 8.0
8.0 8.0 7.6 7.2 6.4
6.0 6.0 5.8 5.4 4.8
4.0 4.0 3.8 3.5 3.1
2.0 2.0 1.9 1.8 1.5
1.0 1.0 1.0 0.9 0.8
0.5 0.5 0.5 0.45 0.4

国产亚洲精品高清视频免费| 枫花恋精品一区二区久久| 把韩国美女操出水| 91精品国产剧情欧美一区二区| 天天爽夜夜爽夜夜爽一区| 日韩美女一区二区三区香蕉视频| 加勒比在线不卡一区二区观看| 久久久久黑人强伦姧人妻| 精品国产自在久国产应用| 国产品无码一区二区三区在线| 三级片成人京东热五月天| 亚洲天堂成年人在线视频| 亚洲欧美国产原创一区二区三区| 精品精品视频国产| 在线视频观看一区| 亚洲综合青青草原在线| 大鸡插骚货人人色| 胸大裸体美女视频| 视频在线观看一区@99| 一区二区三区 日韩在线| 裸体美女被操的啊啊直叫| 欧美日韩久久久一区二区三区| 欧美综合区自拍亚洲综合| 97人人澡人人爽人人揉| 日本高清一区二区三区不卡| 美女被插b在线观看| 中文字幕一区二区三区中文字幕| 久久久久黑人强伦姧人妻| 日本a国产精品久久久久| 成人刺激性视频在线观看| 老司机精品成人无码AV| 午夜国产三级一区二区三| 午夜精品福利一区二区三区蜜桃p| 99热这里只有精品98| 日韩视频在线网页| 99爱国产精品免费视频| 国产亚洲精品一区久久| 国产蜜月精品高清一区二区三区| 三级成人国产高清视频| 女人日比比视频免费| 亚洲精品精品精国产|