韩国三级中文字幕hd久久精品,国厂偷拍,精品国内自产拍在线观看,冷傲总裁被肉到失禁h

產(chǎn)品列表PRODUCTS LIST

首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測(cè)管>氣體快速檢測(cè)管>158Sα-蒎烯C10H16氣體檢測(cè)管158S α-PINENE 20-300ppm

α-蒎烯C10H16氣體檢測(cè)管158S α-PINENE 20-300ppm

簡(jiǎn)要描述:

α-蒎烯C10H16氣體檢測(cè)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(hào) 80-56-8,健康危害:吸入、攝入或以皮膚吸收對(duì)身體有害。高濃度對(duì)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:2025-10-29

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(cè)管158S α-PINENE 20-300ppm

α-蒎烯C10H16氣體檢測(cè)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+?

一本色道久久综合亚洲精品不| freefronvideo性美国| 国产av国片偷人妻麻豆| 艳妇乳肉荡乳无码av| 91精品久久久久久一区| 免费看电影网站| 成人淫片在线| 强制中出し~大桥未久4| 免费观看日韩AV电影| 浓精灌孕h校园h乱小视频| 国产午夜性生活免费视频| 欧美又粗又硬又大久久久| 搡老女人老太婆澡老太婆| 成av人片一区二区三区久久| 夫夫调教双性h| 免费黄色5| 短篇艳辣500篇h文| 99精品久久久久久久免费看蜜臀| 操小妹影视| 精品欧美成人高清在线观| 色天堂丁香| 沦陷调教会所〈高h〉视频| 99国产精品视频免费观看| 我被3个男人玩一晚上| 日韩精品五区二期三期4000| 国产精品欧美久久久久久久| 丰满少妇大力进入av亚洲葵司| 产在线拍揄自揄视频不卡| 尤物网在线观看欧美日韩| 一边吃奶一边添下面| 北条麻妃精品青青久久| 国产69精品久久久久99| 欧美精品久久久久免费看| 男男肠道灌水失禁play| 在线影院色| 免费网站你懂我的意思| 国产在线|日韩| 性色蜜桃x88av| 字幕日韩视频一区二区| 亚洲另类重口味| 欧美+日本+国产|