亚洲中文字幕啪啪一区二区,看亚洲欧洲在线视频,国产福利不卡在线视频,欧美日韩一区二区人妻

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>157SB溴代甲烷CH3Br氣體檢測(cè)管157SB METHYL BROMIDE 0.4-80ppm

溴代甲烷CH3Br氣體檢測(cè)管157SB METHYL BROMIDE 0.4-80ppm

簡(jiǎn)要描述:

溴代甲烷CH3Br氣體檢測(cè)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:2025-01-08

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
溴代甲烷CH3Br氣體檢測(cè)管157SB METHYL BROMIDE 0.4-80ppm

溴代甲烷CH3Br氣體檢測(cè)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

婷婷激情亚洲综合综合久久| 亚洲av无码网站yw尤物| 狠狠色噜噜狠狠亚洲AV| 在线观看福利中文字幕| 久久久精品熟女亚洲av麻豆| 久久久久久女人精品毛片| 人妻精品一区二区三区| 国产又大又长又粗又猛视频| 日本韩国亚洲欧美一区二区三区| 久久国产精品久久精品国产四虎| 亚洲1区2区3区av| 亚洲精品成人在线播放| 亚洲欧美一区二区久久| 国产99青草视频在线播放视| 国产人成尤物在线免费观看| 91久久国产福利自产拍| 在线亚洲专区中文字幕| 国产日欧一片内射午夜| 911国产精品视频| 色欲香天天综合免费区一区二| 欧美高清手机一区二区| 久久久成人国产精品麻豆| av毛片在线免费观看| 国产精品久久久久久久久三级| 一区二区三区精品亚洲视频| 国产在线一区二区三区欧美| 在线视频精品福利91| 亚洲国产精品午夜福利久久| 精品久久久久精品三级18| 国产又粗又长又硬又黄网站| 国产99青草视频在线播放视| 欧美日本大陆一区二区| 丁香六月婷婷综合缴情欧美| 久久久区一区二区三| 国产目拍亚洲精品一区二区| 在线一区欧美日韩国产| 欧美日韩一级裸体黄色视| 午夜无码精品一区二区三区| 97国产精品国偷自产在线| 国产一级精品无码免费视频| 亚洲最大国产精品一区|