狠狠色丁香久久综合婷婷亚洲成人福利在线-欧美日韩在线观看免费-国产99久久久久久免费看-国产欧美在线一区二区三区-欧美精品一区二区三区免费观看-国内精品99亚洲免费高清

供應(yīng)日本gastec 7LA磷化氫PH3氣體檢測管

磷化氫檢測管7LA Phosphine PH3的詳細介紹 磷化氫檢測管7LA Phosphine  PH3

Phosphine              No.7LAPH3Performance 

Measuring Range

0.05 to 0.1ppm

0.1 to 1.5 ppm

1.5 to 2.5 ppm

2.5 to 9.8 ppm

Pump Strokes

10

5

3

1

Correction Factor

1/2

1

1.7

6.5

Sampling Time

1.5 minutes per pumpstroke

Detecting Limit

0.02 ppm （n =10）

Color Change

Yellow → Red

Reaction Principle

PH3 +3HgCl2 →P（HgCl）3 +3HCl

HCl + Base 仺 Chloride

Coefficient ofVariation10% （for0.1 to 0.4 ppm）, 5% （for 0.4 to 1.5 ppm）ShelfLife2YearsCorrectionsfor

temperature & humidityUnnecessaryStore the tubes at cool and darkplace.

Possible coexisting substances and theirinterferences

供應(yīng)日本gastec 7LA磷化氫PH3氣體檢測管