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      This standard applies to the determination of total mercury in domestic sewage, industrial wastewater and surface water contaminated with mercury. After potassiumhy permanganate and potassium persulfate digestion, the mercury content is determined by the disthiohydrazone Spectrophotometric method, spec-trophotometry, with a measurement range of 2 μg/L to 40 μg/L. This method can effectively eliminate the influence of interfering substances on the results and is suitable for accurate determination of low-concentration mercury content.

      This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
      Status Active
      CCS Z16 ICS 13.060
      Release Date 1987-03-06 00:00:00 Implementation Date 1987-08-01 00:00:00
      45 in total
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