丰满岳乱妇在线观看中字无码,漂亮的保姆5在线观看中文,把我绑在床头上夹奶头视频,免费人做人爱完整版视频

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+?

免费a级毛片无码a∨免费软件| 嗯啊哦快使劲呻吟高潮视频| 亚洲欧美日本韩国| 国产办公室gv西装男| 在线观看免费播放av片 | 亚洲熟妇色xxxxx欧美老妇y| АⅤ资源中文在线天堂| 少妇无套内谢久久久久| 秋霞国产成人精品午夜视频APP | 一本大道伊人av久久综合| 精品国产乱码久久久久久1区2区 | 国产在线观看无码免费视频| 成人片黄网站色大片免费| 亚洲日韩av无码一区二区三区人| 国产精品无码V在线观看| 一区二区三区精华液| 无码国产精品成人午夜视频| 中国人体艺术视频| a级毛片无码免费真人| 全程粗话对白视频videos| 久亚洲一线产区二线产区三线产区| 色欲av无码一区二区三区| 护士奶头又白又大又好摸视频| 国产av无码亚洲av毛片| 费A级毛片无码免费视频120软件| 人人爽久久久噜人人看| 亚洲欧洲美洲无码精品VA| a级毛片毛片免费观看丝瓜| 级毛片内射视频| 日本精品久久久久中文字幕| 老师办公室被吃奶好爽在线观看| 久久久久99精品成人片三人毛片| 永久黄网站色视频免费直播| 少妇挑战三个黑人惨叫4p国语| 国产av无码国产av毛片| 免费a级毛片黄a片高清在线播放| 污污污污污污www网站免费| 无码人妻精品一区二区蜜桃网站| xx性欧美肥妇精品久久久久久| 精品久久久久久成人av| 粗大挺进尤物人妻中文字幕|