精品国产天线2019,色综合久久无码五十路人妻,亚洲熟悉妇女XXX妇女AV,亚洲H在线播放在线观看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>121SB乙炔中磷化氫PH3氣體檢知管121SB PHOSPHINE IN ACETYLENE 5-90ppm

乙炔中磷化氫PH3氣體檢知管121SB PHOSPHINE IN ACETYLENE 5-90ppm

簡要描述:

乙炔中磷化氫PH3氣體檢知管121SB PHOSPHINE IN ACETYLENE 5-90ppm,CO、CO2、H2S、O2、SO2、NH3等檢測管的基本測定原理為線性比色法,即被測氣體通過檢測管與指示膠發(fā)生有色反應,形成變色層(變色柱),變色層的長度與被測氣體的濃度成正比。比長式氣體檢測管原理及使用方法,www.yd666.com

更新時間:2025-03-11

在線留言
乙炔中磷化氫PH3氣體檢知管121SB PHOSPHINE IN ACETYLENE 5-90ppm

乙炔中磷化氫PH3氣體檢知管121SB PHOSPHINE IN ACETYLENE 5-90ppm

Tube 21SB
1. PERFORMANCE
1) Measuring range :5-90 ppm
Number of pump strokes 1(100ml)
2) Sampling time :3 minutes/1 pump stroke with orifice
3) Detectable limit :1 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 blue→Yellowish brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Mercuric chloride(II)and Cupric sulphate(II), Mercuric phosphorus chloride and Cupric
phosphate are produced respectively.
Moreover, Cupric phosphide reacts with Acetylene and Copper acetylene is produced.
PH3+HgCI2+H2O→Hg3P2?3HgCI?3H2O
PH3+CuSO4→Cu3P2+H2O
Cu3P2+HC≡CH→CuC≡CCu
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
90
80
70
60
50
40
30
20
10
5
ppm
100ml
GAS To pump
121SB PHOSPHINE IN ACETYLENE
Substance Interference ppm Coexistence
Hydrogen sulphide Black stain is produced. 10 Higher readings are given.
Arsine Dim yellow stain is produced. 10 〃
Washer
Connector
holder
Rubber tube
connector
Flow Control Orifice
INDICATOR
6.NOTE
1)In case that Acetylene does not exist, lower readings are given.
2)A flow control orifice(an extra option)is required to attach as shown in the following drawing.

国产亚洲日韩一区二区三区| 好爽…又高潮了免费毛片| 精品一区二区三区免费视频 | 欧美人与善交大片免费看| 精品亚洲AV无码一区二区| 亚洲乱码国产乱码精品精| 国产成人一区二区三区影院| 国产精品久久久久久久妇| 麻豆视传媒官网免费观看| 欧美丰满熟妇多毛XXXXX| HEZYO加勒比久久爱综合| 国产精品99久久久久久猫咪 | 成年美女黄网站色大片免费看| 久久精品国产亚洲AV香蕉| 欧美日韩免费观看在线影片| 国产免费一区二区在线a片视频| 欧美国产日韩a在线视频| 国产精品久久久久久妇女 | 亚洲愉拍99热成人精品| 少妇人妻好深太紧了A| 久久精品九九亚洲精品| 97人人超碰国产精品最新蜜芽| 国产人妻高清国产拍精品| 在线看片国产日韩欧美亚洲| 可以免费看美女隐私的app| 国产精品无码AV无码国产AV片| 林不凡苏晴小说免费阅读| 中文字幕乱码中文乱码51精品| 欧美日韩视频高清一区| 欧美综合自拍亚洲综合图片区| 午夜时刻免费入口| 亚洲综合精品一区二区三区| 久久女婷五月综合色啪小说| 久久精品国产99国产精品导航| 欧美日韩久久久精品A片| 国产嫖妓一区二区三区av视频| 国产精品无码久久av| 亚洲综合网国产精品一区| 久久久精品人妻无码专区不卡| 麻豆一区二区99久久久久| 人妻无码一区二区三区四区|