国产成人一区二区三区影,无遮挡啪啪摇乳动态图GIF,少妇高潮潮喷到猛进猛出小说,国产AV在线

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:2024-10-30

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.

女人张开腿让男桶喷水高潮| 疯狂做受XXXX高潮对白| 回民丰满少妇XXX性| 亚洲人成在线观看| 24ADC年龄确认18周岁进入| 无码国产精品一区二区免费式直播| 色狠狠一区二区三区香蕉| 免费大黄网站| 每天被大佬高HPLAY肉NP| 免费观看片的APP下载| 17岁日本免费完整版观看| 久久久久99精品国产片| 免费看av| 又大又长粗又爽又黄少妇视频| 久久精品熟女亚洲AV麻豆| 99久久久无码国产精品9| 久久久久久久久久| 国产精品久久久久婷婷五月色婷婷| 国产精品久久久久久爽爽爽| 国产AV无码专区亚洲A∨毛片| 乔家的儿女电视剧全集免费播放| 辽宁老妓女叫床高潮| 亚洲AV无码一区二区三区| 男男无码SM调教GV观看日本| 半夜年轻人看B站短视频软件| A片试看120分钟做受图片| 国产精品无码麻豆放荡AV| 国产精品三级在线观看无码| 托着奶头喂男人吃奶A片奶水| 雅人四好指的是什么| av无码一区二区三区| 亚洲AV无码乱码国产精品FC2| 国产精品秘入口18禁麻豆免会员| 国产+日韩+另类+视频一区| 欧美精品久久久久A片软件| 最近手机中文字幕高清大全| 最近日本字幕MV高清在线| 日本精产国品一二三产品| 免费人成视频X8X8入口观看大| 少妇被多人C夜夜爽爽AV| 性──交──性──乱|