夜夜爽夜夜叫夜夜高潮漏水,13小男生GAY自慰脱裤子,亚洲国产精品美女久久久久AV,中文字幕丰满乱孑伦无码专区

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>121SC磷化氫PH3氣體檢測管121SC PHOSPHINE 20-1400ppm

磷化氫PH3氣體檢測管121SC PHOSPHINE 20-1400ppm

簡要描述:

磷化氫PH3氣體檢測管121SC PHOSPHINE 20-1400ppm,氣體檢測管應用行業(yè)分布廣泛,涵蓋石油、化工、冶金、采礦、電子、電力、制藥、食品、醫(yī)療衛(wèi)生、農(nóng)業(yè)、燃氣、市政工程、家庭安全與健康、公用場所、道路安全管理、污水處理、生物科學、航天航空、軍事反恐等領域,用于防火防爆、預防中毒、污染監(jiān)測、環(huán)境治理、改善人居環(huán)境。

更新時間:2024-12-19

發(fā)郵件給我們:554328895@qq.com

分享到: 1
在線留言
磷化氫PH3氣體檢測管121SC PHOSPHINE 20-1400ppm

磷化氫PH3氣體檢測管121SC PHOSPHINE 20-1400ppm

Tube 21SC
1. PERFORMANCE
1) Measuring range :40-1400 ppm 20-700 ppm
Number of pump strokes 1/2(50ml) (100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :10 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 :White→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
By reacting with Mercuric chloride(II), Mercuric phosphorus chloride is produced.
PH3+HgCI2+H2O→Hg3P2?HgCI2?H2O
4. CALIBRATION OF THE TUBE
STANDARD GAS CYLINDER METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
700
600
500
400
300
200
100
50
20
ppm
100ml
GAS To pump
121SC PHOSPHINE
Substance Interference ppm Coexistence
Arsine Brown stain is produced. 30 Higher readings are given.
Hydrogen selenide 〃50 〃
Hydrogen sulphide 〃40 〃
(NOTE)
In case of 1 / 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=2×Reading value