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>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(yīng),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:2024-11-07

發(fā)郵件給我們:554328895@qq.com

分享到: 1
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.

浑源县| 鸡西市| 巴彦淖尔市| 绥棱县| 凤冈县| 班玛县| 水城县| 杂多县| 秦皇岛市| 桂东县| 盈江县| 海丰县| 永宁县| 宿迁市| 延吉市| 德钦县| 台北县| 临城县| 新蔡县| 周宁县| 迁西县| 龙陵县| 南皮县| 慈溪市| 讷河市| 罗山县| 漾濞| 沾化县| 昆明市| 闽侯县| 宁乡县| 通山县| 汶上县| 长垣县| 台前县| 铅山县| 安国市| 新野县| 廊坊市| 沧源| 屯昌县|