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

精品无人区一区二区三区| 亚洲一久久久久久久久| 一二三四日本中文在线| 精品亚洲AV无码喷奶水LIER| 最近中文字幕大全| 亚洲精品v天堂中文字幕| ass日本熟妇大全pic| 全黄裸片一29分钟免费真人版| 国产精品白丝久久AV网站| 中文字幕乱码亚洲∧v日本1| 中文字幕乱码人妻一区二区三区 | 欧美猛交xxx无码黑寡妇| 亚洲AV成人无遮挡网站在线观看| 人妻尝试又大又粗久久| 国产97在线 | 日韩| 午夜香吻高清观看视频在线| 亚洲国产精品久久一线不卡| 日韩欧美一区二区三区免费观看| 男女差差差差差打扑克视频 | 18video性欧美19sex| 日文中字乱码一二三区别视频| 亚洲成A人V欧美综合天堂麻豆| 亚洲成a人片在线观看中文| 国产精品毛片va一区二区三区 | 日韩一区二区三区精品| 丰满人妻在公车被猛烈进入电影 | 人人爽久久爱夜夜躁| 51国产黑色丝袜高跟鞋| 国产成人AV区一区二区三| 亚洲精品午夜国产va久久成人 | 中文字幕无码av波多野吉衣| 男男受爱gay同性xx亚洲| 天堂传媒公司宣传片视频| 99久久精品费精品国产一区二区| 国产两女互慰高潮视频在线观看| 欧美大屁股喷潮水xxxx| 国产大片b站观看| av无码天堂一区二区三区| 专干老熟女视频在线观看| 亚洲AV无码不卡久久| 精品国产乱码久久久久久呢|