German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of the chemical oxygen demand (COD), ranging from 5 to 50 mg/l (H 44)
Edition 1992-05

German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of the chemical oxygen demand (COD) (S 9)
Edition 1986-09

Corrosion of metals and alloys - Electrochemical test methods - Test method for the determination of surface resistivity of zinc and zinc coatings using gel electrolytes
Edition 2024-07

Chemical analysis of copper and copper alloys; photometric determination of iron in copper and copper alloys containing 0,4 % of iron at maximum
Edition 1973-10

Chemical analysis of copper and copper alloys; photometric determination of nickel in copper alloys containing 2,5 % of nickel at maximum
Edition 1973-10

Chemical analysis of copper and copper alloys; determination of tin as alloying element, volumetric method
Edition 1977-06

Chemical analysis of copper and copper alloys; determination of arsenic in copper and copper alloys, photometric method
Edition 1980-04

Corrosion of metals - Corrosion testing - Part 4: Performance of chemical corrosion experiments without mechanical stresses in liquids in the laboratory
Edition 2018-03

Corrosion of metals - Electrochemical corrosion tests
Edition 2018-09

Solid fuels - Determination of chemical composition of fuel ash - Part 8: Determination of soda and potash (Na₂O, K₂O) contents
Edition 2001-05