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+?

国产av一区二区三区| 小泽玛丽亚电影在线观看| 少妇性色午夜淫片aaaze| 美女视频图片一区二区三区| 国产午夜性生活免费视频| 自拍偷拍 欧美精品| 欧美猛少妇| 久久99亚洲精品久久| 好吊干人妻| 时代峰峻在哪| 自拍偷国产| 国产精品剧情自拍你懂的| 狠狠躁18三区二区一区| 亚洲丁香视频| 亚洲人毛茸茸少妇XXXXX| 亚洲无套内射在线观看| 久久精品人妻中文系列| 中文国产人精品久久蜜桃| 天天激情婷婷日| 大尺度做爰床戏呻吟皇宫| 99久久久无码囯产精品| 国产专区日韩精品欧美色| 欧美日韩国产专区一区二区| japanese日本人妻熟妇| 午夜大肉棒插大鸡巴视频| 极品盗拍美女嘘嘘露脸| 中文无线乱码二三四区| 国产亚洲综合性久久影院| 我的sm经历1一25章| 久久婷婷五| 国产超薄肉丝袜在线播放| 森泽佳奈女教师无删减版| 给我免费的视频在线观看| 大鸡鸡顶我视频在线播放| 一级黄色大片在线| 亚洲国产女人精品久久久| 黑人巨吊暴操日本女人| 18中国性生交xxxxxhd| 亚洲欧美熟妇另类久久久| 国产精品美女久久久小说| 中国一级黄带|