GB/T 7476-1987
Water quality--Determination of calcium--EDTA titrimetric method (English Version)

Standard No.

GB/T 7476-1987

Language

Chinese, Available in English version

Release Date

1987

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 7476-1987

Replace

EJ/T 272.2-1985 EJ/T 272.4-1985

Scope

This standard specifies the determination of calcium content in groundwater and surface water by EDTA titration. This method is not suitable for seawater and water with high salinity. It is suitable for calcium content in the range of 2-100mg/L (0.05-2.5mmol/L). Water with a calcium content exceeding 100 mg/L should be diluted for measurement.

GB/T 7476-1987 history

• 1987 GB/T 7476-1987 Water quality--Determination of calcium--EDTA titrimetric method

GB/T 7476-1987 Water quality--Determination of calcium--EDTA titrimetric method has been changed from EJ/T 272.2-1985 Analytical method for chromium in uranium mining and metallurgy wastewater.

GB/T 7476-1987 Water quality--Determination of calcium--EDTA titrimetric method has been changed from EJ/T 272.4-1985 Analytical method for lead in uranium mining and smelting waste water.