成人毛片无码一区二区三区,亚洲精品成人无码中文毛片,亚洲国产精品尤物yw在线观看,人妻互换精品一区二区

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:2025-12-08

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+?

精品久久久久久久无码人妻热| 人妻夜夜爽天天爽三区麻豆av网站| 隔壁的少妇2做爰韩国电影| 久久久久琪琪去精品色| 日产亚洲一区二区三区| 精品久久人人妻人人做精品 | 欧美日韩国产精品自在自线| 欧美与黑人午夜性猛交久久久| 8AV国产精品爽爽ⅤA在线观看| 人妻少妇被粗大爽9797pw| 日本极度色诱| 久久人人爽人人爽人人片Ⅴ| 办公室扒开衣服揉吮奶头在线观看 | 国产又猛又黄又爽| 无码精品人妻一区二区三区漫画| 88国产精品欧美一区二区三区| 欧美激情一区二区三区| 五十款夜间禁用app粉色视频 | bgmbgmbgm毛多老太免费| 亚洲AV乱码中文一区二区三区| 永久在线观看免费视频| 在教室伦流澡到高潮hgl视频 | 超碰97久久国产精品牛牛| 挺进邻居丰满少妇的身体| 亚洲综合久久精品无码色欲| 午夜精品久久久久久久99热 | 欧美牲交a欧牲交aⅴ久久| 菠萝蜜视频免费观看| 无码国产av精品一区二区| 小少妇性开放xxxxxhd| 末发育娇小性色xxxxx视频| 久久久久亚洲av无码专区桃色| 欧美熟妇av欧差aa片| 真实的和子乱拍在线观看| 丰满少妇被猛烈进AV毛片| 亚洲精品国产AV天美传媒| 亚洲av无码专区在线播放中文| 日韩色欲人妻无码精品av| 国产精品日本一区二区不卡视频 | 久久人人爽人人爽人人片Ⅴ| 国产精品永久久久久久久久久 |