German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 62: Plausibility check of analytical data by performing an ion balance
German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 60: Analytical quality assurance for chemical and physicochemical water analysis (A 60)— 38 стр.
German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 62: Plausibility check of analytical data by performing an ion balance (A 62)— 10 стр.
