亚洲色大成网站www永久网站_亚洲一区二区三区影院_久久精品免费观看国产_亚洲精品无码久久久久_日韩中文字幕精品一区

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:2025-04-15

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+?

欧美jizzhd精品欧美| 精品无人码麻豆乱码1区2区| 国产精品原创巨作av女教师| 99蜜桃在线观看免费视频网站| 亚洲色大成网站www永久网站| 亚洲女初尝黑人巨| 亚洲人成亚洲人成在线观看| 美女黄网站色视频免费国产| 99久久久无码国产精品免费| 公天天吃我奶躁我的比视频| 中文字幕乱码亚洲美女精品| 小蜜被两老头吸奶头在线观看| 亚洲性无码av中文字幕| 天堂在线最新版资源www中文| 四虎国产精品永久在线国在线| 国产人与禽zoz0性伦多活几年| 内射巨臀欧美在线视频| 亚洲一区二区三区久久综合| 亚洲男同gv在线观看| 精品国产乱码久久久久夜深人妻 | 最新精品露脸国产在线| 人妻av无码一区二区三区| 国产精品宾馆在线精品酒店| 亚洲亚洲人成综合丝袜图片| 中文字幕精品久久久久人妻 | 国产伦精品一区二区三区妓女下载 | 成人性做爰片免费视频| 99麻豆久久久国产精品免费| 成人免费区一区二区三区| 特级a做爰全过程片| 男人女人午夜视频免费| 日韩乱码人妻无码中文字幕| 日韩a片无码毛片免费看| 日韩精品专区在线影院重磅| 亚洲国产高清在线一区| 午夜成人理论福利片| 亚洲一区二区三区无吗| 国产99久久精品一区二区| 亚洲av无码乱码国产精品久久 | 中文字幕麻豆一区二区| 亚洲一区二区三区影院 |