一本色道亚州综合久久精品,年轻的妈妈3韩国电影,最新日本免费一区二区视频,欧美亚洲国产日韩不卡

產品列表PRODUCTS LIST

首頁>產品中心>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鹇樽碜饔谩S袝r損害腎臟。

更新時間:2025-05-05

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+?

日韩 中文字幕在线最新| 欧美精品国产一区二区在线观看| 欧美日韩欧美国产中文字幕| 91孕妇精品一区二区三区| av在线国产哟哟| 日韩高清精品一区有码在线| 91孕妇精品一区二区三区| 多男用舌头伺候一女| 日韩精品欧美喷水| 欧美亚洲综合久久夜夜嗨| 欧美亚洲干妞内射| 亚洲国产精品一区亚洲国产| 欧美亚洲另类天天综合网| 97国产精品免费一二区| 操逼动漫首页登录| 操鸡巴奶子在线观看| 国产熟女50岁一区二区| 美女骚逼被操出白浆| 亚洲欧美一区二区爽爽爽| 亚洲欧洲综合成人综合网| 97人人澡人人爽人人揉| 一区二区三区中文字幕免费在线| 老司机免费福利午夜入口| 两个人免费视频高清| 亚洲福利左线观看| 欧美在线A片一区二区三区| 亚洲午夜福利视频在线| 日韩有码视频在线| 国产欧美日本韩国一区二区| 国产精品欧美久久久久久| 国产一区二区在线观看精品| 国产高清在线观看一区二区三区| 欧美日韩久久久久久久久| 精品久久久久五月婷五月| 大鸡巴射精在小穴动漫版| 神马我不卡手机在线观看| 奇米一区二区三区视频在线观看| 久久精品国产亚洲高清| 在线观看日韩欧美| 爆乳1把你榨干在线观看| 日韩成人伦理片在线观看|