Performance

Measuring Range

0.02 to 0.2 mg

Sampling Time

45 seconds per 1 pomp stroke

Detecting Limit

0.002 mg

Colour Change

White → Brown

Reaction Principle

Gus generation tube : Sulphides +H2SO4 →H2S
Detector tube : H2S + Pb(CH3COO)2 → PbS

Shelf Life

3 Years

Corrections for temperature &humidity

Unnecessary

Coefficient ofVariation                                                                   5%(for 0.02 to 0.2 mg)

Possible coexisting substances and theirinterferences (NOTE)

Substance

Concentration

Interference

Change colour by itselfto

Chlorideion

No

No

Chromate ion

No

No

Carbonate ion

No

No