硫化物 NO.201H

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 of Variation                                                                   5% (for 0.02 to 0.2 mg) 
Possible coexisting substances and their interferences (NOTE) 
Substance Concentration Interference Change colour by itself to 
Chloride ion   No No 
Chromate ion   No No 
Carbonate ion
  
 No No 
 
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