韩国三级中文字幕hd久久精品,国厂偷拍,精品国内自产拍在线观看,冷傲总裁被肉到失禁h

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>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>158Sα-蒎烯C10H16氣體檢測(cè)管158S α-PINENE 20-300ppm

α-蒎烯C10H16氣體檢測(cè)管158S α-PINENE 20-300ppm

簡(jiǎn)要描述:

α-蒎烯C10H16氣體檢測(cè)管158S α-PINENE 20-300ppm,英文名稱 α-Pinene ,2,6,6-Trimethyl-bicyclo[3.1.1]-2-heptene,分子量:136.24,CAS號(hào) 80-56-8,健康危害:吸入、攝入或以皮膚吸收對(duì)身體有害。高濃度對(duì)眼睛、皮膚、粘膜和呼吸道有強(qiáng)烈的刺激作用。中毒表現(xiàn)有燒灼感、咳嗽、喘息、喉炎、氣短、頭痛、惡心和嘔吐??赡芤鹇樽碜饔?。有時(shí)損害腎臟。

更新時(shí)間:2025-10-29

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
α-蒎烯C10H16氣體檢測(cè)管158S α-PINENE 20-300ppm

α-蒎烯C10H16氣體檢測(cè)管158S α-PINENE 20-300ppm

Tube 58S
1. PERFORMANCE
1) Measuring range :5-300 ppm 2.5-150 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.5 ppm(200ml)
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :White→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:15% RSD-high : 10%
3. CHEMICAL REACTION
A polymer of Styrene is produced by sulphuric acid.
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
300
250
200
150
100
50
20
5
ppm
GAS To pump
158S STYRENE
Substance ppm Interference ppm Coexistence
Acrylonitrile FIG.1 Tafhfeec atecdc.uracy of readings is not 400 Lower readings are given.
Butadiene 3 Similar stain is produced. 5 Uneven discolouration is produced
FIG.2 and higher readings are given.
Formaldehyde 〃15 Yellowish orange stain is produced
FIG.3 and higher readings are given.
Acetaldehyde 〃350 Similar stain is produced and
higher readings are given.
Methyl alcohol The accuracy of readings is not 0.35% Pale discolouration is produced
affected. and higher readings are given.
Ethyl alcohol 〃0.18% 〃
Ethyl acetate 〃700 〃
Butyl acetate 〃700 〃
(NOTE)
In case of 2 pump strokes, following formula is available for actual concentration.
Actual concentration=1/2×Reading value.
0
200
100
Acrylonitrile Butadiene
FIG.1 Influence of Acrylonitrile Styrene indicating value 〔
ppm〕
500 1000 0
200
100
FIG.2 Influence of Butadiene
Styrene indicating value 〔ppm〕
〔ppm〕? 50 100 0
200
100
Formaldehyde
FIG.3 Influence of Formaldehyde
Styrene indicating value 〔ppm〕
〔ppm〕? 100 200〔ppm〕?
Coexistence
Interference
CH:?CH2 CH–CH2
H2SO4+?

日韩中文字幕亚洲欧美| 亚洲ⅩXX一区二区三区| www.99xxxx.com| 欧美一区二区三区四区黄色| 久久久久久人妻av毛片| 大胆国产精品视频嫩色av| 98欧美日韩精品亚洲欧美| 偷拍成人一区亚洲欧美| 熟女视频一区二区三区国产| 国产无遮挡在线播放视频| 丰满人妻熟妇乱又伦精品劲欧美剧免 | 中国女人18水真多精品| 日韩欧美中文视频| aaa中文字幕| 午夜精品一区二区三区免费视频| 巨胸喷奶水wwww贱多网站| 亚州乱码区| 日本在线中文字幕一区二区| 丰满少妇2中文在线观看| 插入淫妻的骚穴在线播放| 后进极品美女圆润翘臀视频| 国产av一区二区三四区| 国产黄色a级网站| 精品亚洲韩国一区二区三区| 国产精品久久毛片完整版| 日韩Av中文在线字幕| 亚洲男人的天堂无码av| 成片免费观看视频在线网| 亚洲国产精品99久久久久久久| 日本女优在线一区二区三区| 强行开发她的尿孔h| 国产乱xxxxx987国语对白| 亚洲欧美中文字幕日韩二区| 99久久国产精品免费热7788体验| 日韩电影免费观看一区二区| 性饥渴少妇aV无码毛片| 久久爽狠狠添av激情五月| 小舞同人18av乳黄漫网站| 性做爰添LBB在线视频| 韩国久久中文字幕| 《隔壁放荡人妻bd高清》电影|