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>169S氯丁二烯二CH2=CClCH=CH2氣體檢測管,169S CHLOROPRENE 0.5-20ppm

氯丁二烯二CH2=CClCH=CH2氣體檢測管,169S CHLOROPRENE 0.5-20ppm

簡要描述:

氯丁二烯CH2=CClCH=CH2氣體檢測管,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,對眼、鼻、喉有刺激的感覺;濃度 (6.25-62.5)×10 -5mol/L(3 ~ 30mg/m3 ) 時,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 , 則對人體有危害。

更新時間:2025-03-10

在線留言
氯丁二烯二CH2=CClCH=CH2氣體檢測管,169S CHLOROPRENE 0.5-20ppm

2-氯丁二烯CH2=CClCH=CH2氣體檢測管,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

一本色道久久综合亚洲精| 免费人成视频x8x8入口app| 伊人久久综合热线大杳蕉岛国| 国产成人av无码永久免费一线天 | 免费AV一区二区三区| 国产精品99久久精品爆乳| 国产人妻大战黑人20P| 精品久久久久久久无码人妻热| 亚洲中文字幕在线| 精品国产亚洲一区二区三区在线观看 | 欧美国产激情二区三区蜜月| 亚亚洲精品黑人巨大在线播放| 国产精品18久久久久久不卡| a片在线观看免费| 久久精品人妻少妇一区二区三区| 无码免费视频aaaaaaaa片| 欧美日韩免费观看| 日韩无码专区| 中文无码AV一区二区三区 | 久久久久国产一区二区三区 | 人妻av中文系列| 性做久久久久久久| 一本一道精品欧美中文字幕| 欧美18VIDEOSEX极品| 亚洲精品国产精品国自产观看| 宝宝好涨水快流出来免费视频| 亚洲国产精品成人天堂| あかねさす少女免费| 一本到高清视频免费观看| 欧美性猛交XXXX| 国产娇小粉嫩学生免费网站 | 亚洲国产精品无码久久青草| 免费看美女被靠到爽的视频| 欧美亚洲国产精品久久高清| 久久精品国产亚洲一区二区 | 国产精品一区二区久久国产| 亚洲精品乱码久久久久久蜜桃不卡| 曰批免费视频播放免费| 女人与拘做受全过程免费视频| 中文字幕 一区二区三区| 中文字幕乱码中文乱码51精品|