亚洲清纯唯美综合伊人色,大香蕉中码手机在线视频,欧美老黄片在线免费播放,亚洲午夜av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>158Sα-蒎烯C10H16氣體檢測管158S α-PINENE 20-300ppm

α-蒎烯C10H16氣體檢測管158S α-PINENE 20-300ppm

簡要描述:

α-蒎烯C10H16氣體檢測管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 80-56-8,健康危害:吸入、攝入或以皮膚吸收對身體有害。高濃度對眼睛、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?。有時損害腎臟。

更新時間:2025-08-28

在線留言
α-蒎烯C10H16氣體檢測管158S α-PINENE 20-300ppm

α-蒎烯C10H16氣體檢測管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+?

亚洲影视一区二区三区四区| 白嫩的18sex少妇hd| 久视频这里只有精品试看| 亚洲av无码99久久久国精| 亚洲av成人综合网久久| 日韩欧美一区二区福利视频| 草草久久久亚洲av成人片| 日本一区二区三区视频电影 | 亚洲乱码中文字幕一线区| 未来影院午夜理论片少妇| 五月天丁香婷婷综合久久| 亚洲欧美波霸爆乳a片3| 欧美电影院一区二区三区| 熟妇女人妻619丰满少妇| 国产呦精品系列在线播放| 欧美一区精品免费在线观看| 欧美人与性动交α欧美精品| 女同学浮乱系列合集| 爱情岛亚洲永久自拍品质| 沟厕欣赏女尿高清11分钟| 亚洲av日韩精品午夜在线| 久久精品免视看国产成人不卡| 餐桌下狂c亲女水欧阳凝| 大香蕉在线视频在线视频| 丰满熟女少妇一区二区三区| 久久www成人免费观看| 久久综合之合合综合久久| 亚洲无线码一区二区三区| 艳mu无删减在线观看免费无码| 欧美性大战久久久久久久| 久久精品人人做人人爽电影蜜月| 青青草国产成人99久久| 日韩高清不卡免费一区二区| 国产精品免费久久久久软件| 日本av精品一区二区三区| 办公室av在线| 精品人妻少妇一区二区三区在线| 日本工囗漫画h无遮挡全彩| 日韩精品成人大片在线观看| 日韩av高清视频在线观看| 操一操在线资源|