久久精品国产亚洲AV麻豆蜜芽,风流少妇A片一区二区蜜桃,国产精品久久久久精品三级卜 ,性欧美大战久久久久久久久

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>157SB溴代甲烷CH3Br氣體檢測管157SB METHYL BROMIDE 0.4-80ppm

溴代甲烷CH3Br氣體檢測管157SB METHYL BROMIDE 0.4-80ppm

簡要描述:

溴代甲烷CH3Br氣體檢測管157SB METHYL BROMIDE 0.4-80ppm 溴甲烷CH3Br 英文名稱 bromomethane;methyl bromide 又稱溴代甲烷或甲基溴,甲基溴,又稱溴代甲烷或甲基溴,, 溴甲烷CH3Br 英文名稱 bromomethane;methyl bromide

更新時(shí)間:2025-03-11

在線留言
溴代甲烷CH3Br氣體檢測管157SB METHYL BROMIDE 0.4-80ppm

溴代甲烷CH3Br氣體檢測管157SB METHYL BROMIDE 0.4-80ppm

1. PERFORMANCE
1) Measuring range :5-80 ppm 2.5-40 ppm 0.9-7.3 ppm
Number of pump strokes 1(100ml) 2(200ml) 4(400ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :1 ppm(200ml)
4) Shelf life :3 years(Necessary to store in a refrigerated place ; 0~10℃)
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :White→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By decomposing with an Oxidizer, Bromine is produced. Bromine reacts with o-Toluidine and yellow
Orthoquinone is produced.
CH3Br+I(xiàn)2O5+CrO3+H2SO4→Br2
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
5
10
15
20
30
40
60
80
ppm
100ml
GAS To pump
(Olive) (White)
PRETREAT TUBE DETECTOR TUBE
Tube No.
157SB METHYL BROMIDE
(NOTE)
When the concentration is below 5 ppm, 2 pump strokes can be used to determine the lower concentration.
Following formula is available for the actual concentration.
Actual concentration=1/2×Temperature corrected value
Substance Interference ppm Coexistence
Halogen Similar stain is produced. Higher readings are given.
Halogenated hydrocarbons 〃〃
Hexane FIG.1 200 Lower readings are given.
0
50
60
70
80
30
40
Hexane〔ppm〕?
FIG.1 Influence of Hexane Methyl bromide indicating value 〔
ppm〕
100 200 300 400 500 600 700
20
10
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 5℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (41°F) (50°F) (68°F) (86°F) (104°F)
80 - 140 98 80 75 73
60 145 76 67 60 57 56
40 44 43 42 40 40 40
30 30 30 30 30 30 30

被部长连续侵犯中文字幕| 4D蒲玉奶水都出来了| 超模的秘密在线观看| 久久国产免费观看精品3| 久久国产精久久精产国| 一 级 黄 色 片一录像厅| 色视频WWW在线播放国产人成| 尹人香蕉99久久综合网站| 少妇高潮无套内谢麻豆传| 人妻少妇精品久久久久久| 强行开发她的尿孔H| 麻豆国产精品色欲AV亚洲三区| 中文资源在线天堂| 国产精品国产三级国产AV中文| 亚洲一区爱区精品无码| 青苹果乐园在线观看| 啊灬用力灬啊灬啊灬啊灬A片男男 中文字幕人妻丝袜乱一区三区 | 黑人粗大猛烈进出高潮视频| 成人区精品人妻一区二区不卡 | 97久久精品人人槡人妻人| 精品国产乱码久久久久蜜桃| 国产又黄又爽又色的免费| 亚洲AV无码成人精品区| 久久久久久久久久久| 锕锕锕锕锕锕锕锕好疼动免费| 勾搭已婚妇女露脸对白在线| 亚洲无码一区| 囯产精品久久久久久久久蜜桃| 大胆欧美人体艺术| 少妇无套内谢久久久久| 国产AV无码专区亚洲版综合| 8X8Ⅹ永久海外华人免费观看| 免费看大片的APP| 色国产精品一区在线观看| 久久国产精品波多野结衣AV| 精品亚洲AV无码一区二区| 国产韩国精品一区二区三区| 久久久精品波多野结衣AV| 你是我的女人中文字幕高清| 两口子交换真实刺激高潮| 成人精品一区日本无码网站 |