成人毛片无码一区二区三区,亚洲精品成人无码中文毛片,亚洲国产精品尤物yw在线观看,人妻互换精品一区二区

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>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;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:2025-01-15

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

亚洲欧美日韩综合久久久久| 成人色情视频免费观看| 放荡的丝袜人妻老师| 午夜福利一区二区三区在线观看| 人妻免费久久久久久久了| 久久国产一区二区三区| 国产真人无码作爱免费视频久| 亚洲综合精品一区二区三区| 人人妻人人澡人人爽不卡视频| 国产精品无码AV片在线观看播| 西西大胆午夜人体视频| 一本久道中文无码字幕av| 欧美又大又色又爽aaaa片| 亚洲女人被黑人巨大进入| 国产综合久久久久久鬼色| 日日日日做夜夜夜夜做无码| 在线毛片片免费观看| 久热这里只有精品视频6| 久久久久久伊人高潮影院| 免费看少妇高潮成人片| 欧美性猛交xxxx免费看| 狠狠色婷婷久久一区二区| 狼友AV永久网站免费观看| 入禽太深免费观看| 欧美牲交a欧美牲交aⅴ免费下载| 又硬又粗又大一区二区三区视频| 99久久99这里只有免费费精品 | 久久免费看少妇高潮a片特无毒| 国产大片免费线上观看| 最近国语中文mv在线观看| 国产成人h视频在线播放| 处破痛哭A√18成年片免费| 精品国产一二三产品区别在哪| 青草久久欧美又黑又粗又大| 国精品人妻无码一区二区三区软件| 国自产拍偷拍精品啪啪模特| 成全动漫视频在线观看| 菠萝蜜视频网站| 性做久久久久久| 女人性高朝床叫视频作爱| 婷婷精品国产亚洲av在线观看|