EJ/T 272.3-1985 Analytical method for arsenic in uranium mining and metallurgy wastewater was changed to GB/T 7475-1987 Water quality--Determination of copper, zinc, lead and cadmium--Atomic absorption spectrometry.
EJ/T 272.3-1985 Analytical method for arsenic in uranium mining and metallurgy wastewater was changed to GB/T 11900-1989 Water quality--Determination of trace amounts of arsenic--Spectrophotometric method with silver salt.
Copyright ©2023 All Rights Reserved