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+?

精品亚洲国产成人蜜臀AV| 伊人久久丁香色婷婷啪啪| 色-情-伦-理一区二区三区| 成人欧美日韩一区二区三区| 亚洲国产精品无码久久A片小说| 亚洲精品午夜无码专区| 人妻无码ΑV中文字幕久久琪琪布 免费看成人做xxoo视频 | 欧美做受又硬又粗又大视频| 亚洲乱码爆乳精品成人毛片| 国产AV无码专区亚洲AV麻豆| 黄页网址大全免费| 欧美久久久无码精品亚洲日韩小说| 夫の前で痴汉に绝顶人妻国产剧| 综合 欧美 亚洲日本| freexxx欧美老妇| 強姦犯された人妻たち| 久久亚洲美女精品国产精品| 国产色情又大又粗又黄的电影| 少妇无码一区二区三区免费| 99精品视频在线观看免费| 欧美+国产+日产+韩国| 欧美性猛交╳xxx富婆| 直接观看黄网站免费视频| 扒开双腿猛进入jk校花免费网站| 中文字幕精品一区二区精品| 色婷婷综合久久久久中文| 精品国产自在现偷| 国产免费人成在线视频| 亚亚洲精品黑人巨大在线播放| 久久久久久久精品无码AV少妇| 亚洲精品无码久久久久苍井空 | 国产精品无码专区在线播放| 久久ER热在这里只有精品66| 成人网站免费看黄a站视频| 精品无码久久久久国产| 日韩加勒比一本无码精品| 成人无码欧美大尺度视频| 亚洲一区二区三区 无码| 凹凸国产熟女精品视频国语| 蜜桃精品免费久久久久影院| 亚洲日韩精品欧美一区二区一|