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See Chinese contents: GB/T 24514-2009 GB/T 24514-2009: Zinc and/or aluminium based coating on steel -- Determination of coating mass per unit area and chemical composition -- Gravimetry, inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry
This document specifies the method of gravimetry method to determine the coating mass per unit area, as well as the methods of inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry to determine chemical composition of zinc-based and/or aluminum-based single-sided coatings on steel surfaces.
