韩漫画免费在线观看入口,国产精品欧美久久久久久久,99欧美精品一区二区三区,日韩欧激情一区二区三区

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:2025-07-02

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

啊啊啊好痛慢点在线视频| 日韩精品欧美精品亚洲系列| 久久国产综合色免费观看| 噜噜噜久久久噜噜噜久久久| 亚洲老妇女玩肉棒棒视频| 久久久久久精品无码| 久久久精品妓女影院妓女网| 国产亚洲精品久久久久秋霞| 久久综合久中文字幕青草| 老妇看A片偷人精品视频| 国产日韩欧美日日骚一区| 熟女快要高潮了在线观看| 久久精品国产23585| 国产三级精品久久久电影| 久久综合丁香色婷婷激情| 国产一区二区三区精品久久| 午夜在线视频一区二区三区| 国产成人精品短视频一区| 亚洲东京热无码av专区| 成人黄在线观看影院破处| 国产spa盗摄xo在线观看| 宅福利国产精品无码视频| 琪琪午夜伦理影院人妻秘书| 亚洲∧v久久久无码精品| 国内精品乱码卡一卡2卡| 美女国产对白在线观看一区| 亚洲精品国产自在久久 | 久久伊人五月天| 国产精品综合在线免费看| 老牛影视一区二区久久性| 亚洲av啊啊啊在线观看| 国产精品久久久久久久不| 国产日韩中文字幕在线播放| 久久男人中文字幕资源站| 亚洲日本道1区2区3区| 日产精品高潮呻吟av久久| 亚洲啪av永久无码精品放毛片| 色哟哟精品中文字幕乱码| 日韩 亚洲 欧美在线观看| 亚洲熟女av中文字幕男人总站| 日韩欧美国内精品在线播放|