99久久国产精品人妻无码,国产免费av片在线观看,国产精品污www一区二区三区,真人性做爰无遮a片免费

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:2024-12-10

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

久久精品国产亚洲av无码麻豆| 国产亚洲精品久久久久久久软件| 国产裸体舞一区二区三区| 被合租刑警的粗汉肉h高| 精品亚洲麻豆1区2区3区| 国产suv精品一区二区| 国产成人精品亚洲777人妖| 亚洲精品99久久久久中文字幕| 亚洲精品又粗又大又爽a片| 两口子交换真实刺激高潮| 国产日韩一区二区三区在线观看| 国产做a爱免费视频在线观看| 国产日韩一区二区三区在线观看| 皇上好涨奴婢夹不文h| 雨后的小故事| 98国产精品综合一区二区三区| 欧美体内she精视频| 擦老太bbb擦bbb擦bbb擦| 国产精品毛片一区二区三区| 国产无遮挡又黄又爽在线观看| 精品一区二区三区四区在线播放| 在线成人www免费观看视频| 女朋友闺蜜奶好大下面好紧| 西西人体大胆啪啪私拍色约约| 国产精品亚洲成在人线| av在线观看| 小婷又软又嫩又紧水又多| 国产精品一区二区毛卡片| 俄罗斯美女视频| 一本久久综合亚洲鲁鲁五月天| 中文字幕无码av波多野吉衣| 彩虹男GARY2022| 黑加白blackedhd| 亚洲国产成人一区二区精品区| 天堂资源8在线| 亲胸揉屁股膜下刺激视频| 欧美老熟妇又粗又大| 色婷婷av一区二区三区| 最近免费中文字幕mv免费高清版| 又硬又粗进去好爽a片潘金莲| 成年美女黄网站色大片免费看|