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

精品亚洲麻豆1区2区3区| 色拍拍在线精品视频| 久久精品国产亚洲AV影片| 男人狂躁进女人下面免费视频| 《年轻的护士3》在线观看视频| 日日摸天天碰中文字幕你懂的| 免费无码毛片一区二区app| 少妇大叫太大太粗太爽了a片| 欧美深度肠交惨叫| 非洲人和和人配人视频| 丁香色欲久久久久久综合网| 丰满少妇做爰视频爽爽和| 波多野结衣 美乳人妻| 色欲av无码一区二区三区| 亚洲国产成人一区二区精品区| 天天爽夜夜爽夜夜爽精品视频| 免费a级毛片无码视频| 无码欧美毛片一区二区三| 日韩欧美高清dvd碟片| 国语自产精品视频在线完整版| 国内大量揄拍情侣在线视频99| 久久偷看各类wc女厕嘘嘘偷窃| 狠狠色成人一区二区三区| 欧美性xxxxx极品娇小| 国产99久久九九免费精品无码| aaa级久久久精品无码片| juliaann精品艳妇| 人妻无码av天堂二区| 精品丰满人妻无套内射| 日韩精品一区二区av在线观看| 国产无遮挡裸体免费视频| 高清freexxxx性国产| 少妇熟女久久综合网色欲| 丰满少妇弄高潮了www| 夜里十大禁用短视频软件破解版| 日本最新免费二区三区| 国产av电影区二区三区曰曰骚网| 欧美顶级少妇做爰hd| 狠狠人妻久久久久久综合| 精品一区二区三区四区在线播放| 久久亚洲AV成人无码国产最大 |