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(cè)管>氣體快速檢測(cè)管>157SB甲基溴C2H5Br氣體檢測(cè)管157SB METHYL BROMIDE 5-400ppm

甲基溴C2H5Br氣體檢測(cè)管157SB METHYL BROMIDE 5-400ppm

簡要描述:

甲基溴 溴乙烷C2H5Br 乙基溴、溴代乙烷,Ethyl bromide 5-400ppm,甲基溴C2H5Br氣體檢測(cè)管157SB Ethyl bromide 5-400ppm,METHYL BROMIDE,第三種是當(dāng)前物質(zhì)易生與指示層產(chǎn)化學(xué)反應(yīng)時(shí),在制造中將這兩部分分別裝在兩個(gè)玻璃管內(nèi),分別熔封,使用時(shí)用套管相聯(lián)。氣體檢測(cè)管法的應(yīng)用特點(diǎn):

更新時(shí)間:2025-01-15

在線留言
甲基溴C2H5Br氣體檢測(cè)管157SB METHYL BROMIDE 5-400ppm

甲基溴C2H5Br氣體檢測(cè)管157SB METHYL BROMIDE 5-400ppm

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
3Br2H2N NH2 BrH2N=? =? =?NH2Br
CH3 CH3

日韩欧美在线综合网| 亚洲av无码成人精品区| 在线看国产一区二区三区| 日本做受高潮好舒服视频| 久久久久久人妻一区二区三区| 人妻妺妺窝人体色www聚色窝| 免费观看全黄做爰大片| 成人毛片一区二区| АⅤ资源中文在线天堂| 久久亚洲国产精品五月天婷| 久久人人做人人妻人人玩精品VA| 国产精品欧美一区二区三区不卡| 国产精品嫩草影院av| 24小时日本高清在线观看电影| 亚洲国产精品自产在线播放| 无码国内精品久久综合88| 国产精品免费看久久久无码| 最近中文2019字幕第二页| 无码国产色欲XXXXX视频| 欧美在线 | 亚洲| 亚洲av无码偷拍在线观看| 精品人妻无码一区二区三区 | 欧美成人一区二免费视频| 国产亚洲精品久久久999蜜臀| 日韩精品无码一本二本三本色| 最近中文字幕高清中文字幕无| 人妻互换精品一区二区| 国产偷窥熟女精品视频| 久久精品免费一区二区喷潮| 国产精品videossex久久发布| 免费网站看v片在线18禁无码| 欧美高清vivoes69| 4444亚洲人成无码网在线观看| 草草久久久无码国产专区| 少妇人妻偷人精品无码视频| 永久免费的啪啪网站免费观看浪潮| 欧美男男大粗吊1069| 国内精品视频一区二区三区| 2017年亚洲天天爽天天噜| 国产精品丝袜黑色高跟鞋| 亚洲欧美精品无码一区二区三区|