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关 键 词：硫化物
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发布时间：2010-03-11
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 最新评论
