韩国三级中文字幕hd久久精品,国厂偷拍,精品国内自产拍在线观看,冷傲总裁被肉到失禁h

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>227S乙基胺C2H5NH2氣體檢測管227S Ethyl amine 1-20ppm

乙基胺C2H5NH2氣體檢測管227S Ethyl amine 1-20ppm

簡要描述:

氣體檢測管一氧化碳檢測管,苯檢測管,甲苯檢測管,二甲苯檢測管,氮氧化物檢測管,二氧化硫檢測管,二氧化碳檢測管,氧氣檢測管,氫氣檢測管,氟化氫檢測管,甲醇檢測管,乙醇檢測管,丙酮檢測管,丁酮檢測管,氯苯檢測管,氯乙稀檢測管,三氯乙稀,乙胺檢測管(C2H5NH2)乙基胺C2H5NH2氣體檢測管227S Ethyl amine 1-20ppm

更新時間:2025-10-28

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
乙基胺C2H5NH2氣體檢測管227S Ethyl amine 1-20ppm

乙基胺C2H5NH2氣體檢測管227S Ethyl amine 1-20ppm

Tube No.227S
1. PERFORMANCE
1) Measuring range :1-20 ppm
Number of pump strokes 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm
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 :Pale purple→Pale yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with Phosphoric acid, Ph indicator is discoloured.
CH3CH2NH2+H3PO4→(CH3NH3)2HPO4
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
20
18
16
14
12
10
8 6 4 2 1
100ml
ppm
DEHUMIDIFIER
(White)

227S ETHYL AMINE
Substance Interference Coexistence
Ammonia Similar stain is produced. Higher reading are given.
Other amines 〃〃
(NOTE)
This tube scale is calibrated based on Methyl amine and the same scale is available for Ethyl amine.

久久精品久久久国产三级| 波多野结衣中文字幕一区二区三区| 一本之道高清无码视频| 自拍偷拍 欧美精品| av日韩在线一区二区三区| 中国女人精69xxxxxx视频| 一级做人爰片全过| 久久久久久精品影院亚洲| 国产精品56p| 欧美一区二区三区999| 欧美性猛片xxxxx免费中国| 久久久这里只有17精品| 丰满奶水ⅹxxx| 亚洲va欧美va人人爽成| 亚洲欧美性受久久久999| 一区亚洲人妻| 美女日韩一区| 黑人XXXX欧美| av最新中文字幕| 91丝袜精品久久久久久久| 少妇p又紧水又多| 全部av―极品视觉盛宴| 97精品国产97久久久久久免费| 337p日本大胆欧久久| 国产不卡视频一区在线观看| 调教女人视频| aaaaaaaaaav| 三泰虎最新消息| 国产凹凸在线一区二区| 欧美成人WWW在线观看| 一级一片免费视频| 美女被黑人60厘米进入| 欧美黄色五级片| 国产精品一区二区在线电影| 在线视频高清屄屄屄屄屄| 人妻丰满熟妇无码区免费| 成年人的黄色录像| 军婚巨大整根宫交嗯啊hhh | 啊啊啊亚洲一区二区三区| 免费放一个全黄录像| 久久99国产精品久久99|