供应日本gastec 7LA磷化氢PH3气体检测管

供应日本gastec 7LA磷化氢PH3气体检测管

磷化氢检测管7LA Phosphine PH3的详细介绍 磷化氢检测管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

供应日本gastec 7LA磷化氢PH3气体检测管