国产在线无码视频一区_免费看片A级毛片免费看_国产午夜福利精品一区二区三区_99久久人妻精品免费一区

供應日本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

供應日本gastec 7LA磷化氫PH3氣體檢測管