Analysis of raw materials used in glass production; chemical analysis of limestone containing not less than 95 % of calcium carbonate; determination of calcium oxide and magnesium oxide— 4 стр.
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)— 16 стр.
German standard methods for the examination of water, waste water and sludge; gaseous constituents (group G); determination of dissolved oxygen in water, Winkler iodometric method (G 21)— 11 стр.
German standard methods for the analysis of water, waste water and sludge; Summary action and material characteristic parameters (group H); Determination for the chemical oxygen demand (COD); short duration method (H 43)— 11 стр.
Testing of raw materials for the production of glass; chemical analysis of limestone with a minimum content of 95% calcium carbonate; determination of calcium oxide and magnesium oxide— 4 стр.
Analysis of raw materials used in glass production; chemical analysis of dolomite containing not less than 95 % of calcium magnesium carbonate; determination of calcium oxide and magnesium oxide— 2 стр.
