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See Chinese contents: GB 31604.34-2016 GB 31604.34-2016: Method for analysis of hygienic standard of papers for food packaging
This Standard specifies the graphite furnace atomic absorption spectrometric method, inductively coupled plasma mass spectrometric method, inductively coupled plasma atomic emission spectrometric method and flame atomic absorption spectrometric method for the determination of lead in paper products and cork stoppers and lead migration after being soaked in the food simulants.
