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(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

99久久99久久精品免费看蜜桃 | 国产二级一片内射视频播放| 国产私人尤物无码不卡| 久久久久无码中| 国产成人一区二区三区| 白嫩少妇激情无码| 婷婷综合久久狠狠色99H| 99国产精品永久免费视频| 久久97久久97精品免视看秋霞| 欧美激情综合五月色丁香| 啊灬啊别停灬用力啊无码视频| 国产亚洲AV无码AV男人的天堂| 免费无码又爽又刺激高潮| 国产精华2020| 中国a级毛片免费观看| 亚洲人色婷婷成人网站在线观看 | 欧美性十八变态另类| 久久久久亚洲av无码专区电影| 久久99精品九九九久久婷婷| 夜夜爽日日摸免费视频| 国产激情精品一区二区三区| 久久久久久精品国产亚洲AV麻豆| 麻豆md0077饥渴少妇| 日韩精品无码一区二区三区免费| 亚洲男人的天堂在线播放| 精品久久香蕉国产线看观看亚洲| 强奷漂亮少妇高潮A片| 无套无码孕妇啪啪| 中文字幕人妻丝袜乱一区三区| 国产免费无码一区二区| 最近的2019免费中文字幕| 久久人人添人人爽添人人片av| 亚洲gv猛男gv无码男同短文| 亚洲精品久久久无码| 特黄aaaaaaa片免费视频| 日本亲近相奷中文字幕| 精品人妻无码区在线视频| 亚洲码国产精品高潮在线| 最近的最新的中文字幕视频| 看黄A大片日本真人视频直播| 久久大香香蕉国产|