欧美 国产 日本,嗯,嗯,嗯太舒服了视频,久久激情热播免费视频,午夜婷婷大香蕉

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。可能引起麻醉作用。有時損害腎臟。

更新時間:2025-06-03

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+?

国产一区欧美| 苍井空一区二区三区在线观看 | 免费人成在线观看网站| 99久久国产自偷自偷免费一区| 久久久久久久综合狠狠综合| 亚洲精品色无码AV | 99国产精品| 91精品久久日日躁夜夜躁欧美| 懂色av色香蕉一区二区蜜桃 | а√天堂8资源中文在线| 日产a一a区二区| 国产精品成人精品久久久| 亚洲AV日韩综合一区| 开心色播五月| 中文字幕在线亚洲二区| 国产亚洲一区二区三区无码 | 久久精品国产色蜜蜜麻豆国语版| 亚洲av吞精久久久久| 欧美xxxx做受性欧美蜜臀av| 香蕉久久a毛片| 欧美色大香蕉| 免费高清av| 人妻被中出| 亚洲av首页| 99热亚洲| 亚洲麻豆精品| 国产精品久久综合| 国产精品99精品一区二区三区| 老熟妇高潮一区二区高清视频| 美日韩av| www.狠狠| 亚洲 中文 欧美 日韩 在线| 人人妻人人爽日日人人| 久久AV无码ΑV高潮ΑV喷吹| 国产精品久久熟女另类卡通小说| 天天爽夜夜爽人人爽QC| 国产精品午夜无码体验区| 亚洲最大无码AV网址| 国产成人综合美国十次| 乱人伦中文无码视频在线观看 | 日日噜噜噜夜夜爽爽狠狠视频|