亚洲中文字幕啪啪一区二区,看亚洲欧洲在线视频,国产福利不卡在线视频,欧美日韩一区二区人妻

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(shí)損害腎臟。

更新時(shí)間:2025-01-08

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+?

国产精品内射久久久久| 日本成人免费一区二区三区| 国产目拍亚洲精品一区二区| 久久精品亚洲成在人线av| 久久久久久国产综合精品| 国产欧美在线观看精品一区污| 四虎成人精品一区二区| 久久熟女av一区二区三区| 国产国语对白在线观看| 国产资源网中文最新版| 久久国产精品久久精品国产四虎| 久久精品国产成人午夜福利| 日本阿v不卡在线观看视频| 国产成人欧美日本在线观看| 欧美肉大捧一进一出| 日本大香焦免费视频| 欧美亚洲综合一区色婷婷| 久草视频在线视频在线视频在线观看| 亚洲av无码网站yw尤物| 精品国产自产在线观看| 中文亚洲欧美日韩国产| 日产国产精品久久久久久| 亚洲精品成人18久久| 国产三级三级在线播放| 99在线中文字幕一区| 国产精品一区二区无久久久| 日本韩国亚洲欧美一区二区三区| 成人H动漫精品一区二区| 日韩亚洲一区二区在线| 亚洲不卡一区二区三区在线| 国产精品久久久久粉嫩小| 中文国产成人AⅤ久久| 欧美一级大片免费观看视频| 国产欧美在线观看精品一区污| 亚洲av成为人一区二区| 国产又长有粗的视频| 亚洲国产精品无码久久久高潮| 东北乱国产对白刺激视频| 国产精品日韩在线亚洲一区| 亚洲国产日韩一区精品| 亚洲中文字幕国产综合|