精品国产天线2019,色综合久久无码五十路人妻,亚洲熟悉妇女XXX妇女AV,亚洲H在线播放在线观看H

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:2025-03-11

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+?

久久久久亚洲AV无码麻豆| 免费看一区二区三区四区| 少妇高潮喷水久久久久久久久久| 麻豆国产精品色欲AV亚洲三区| 男女又黄又刺激a片免费| 漫漫漫画免费版在线阅读| 亚洲综合无码一区二区三区加勒比| 成人AV无码一区二区三区| 欧美性xxxxx极品少妇直播| 精品一区高潮喷吹在线播放| 国产99久久精品一区二区| 中文无码人妻在线一区不卡| 国产做A爰片久久毛片A片白丝| 国产AV亚洲精品久久久久| 日本熟妇色xxxxx日本免费看| 成全视频在线观看免费看| 欧美成人精品第一区二区三区| 无码JK粉嫩小泬在线观看欧美| 色欲AV伊人久久大香线蕉影院| 国产69精品久久久久9999不卡| 精品久久久久久中文字幕大豆网 | 日本妇人成熟a片免费现看| 久久人爽人人爽人人片AV | 免费看国产曰批40分钟| 无码AV精品一区二区三区| 欧美激情综合一区二区三区| 全免费a级毛片免费看网站| 国产午夜无码精品免费看动漫| 亚洲VA天堂VA欧美片A在线| 国产乱人伦偷精品视频a人人澡| 亚洲精品AV中文字幕在线| 人人爽人人澡人人高潮| 国产日韩欧美在线视频一本到| 无码国产精品一区二区免费虚拟vr| 无码精品一区二区三区在线| 被夫上司玩弄的人妻| 亚洲熟妇丰满XXXXX在线观看| 无码人妻久久一区二区三区| 国产午夜无码视频在线观看| 国产免费av在线观看| 日韩人妻精品无码久久上司|