Testing of glass; grain method for determination of the hydrolytic resistance of glass as a material at 98 °C and classification of glass into hydrolytic classes— 4 стр.
Testing of mineral oils; determination of the phosphorus content in lubrication oils and additives, digestion procedure and photometric determination— 4 стр.
Testing of glass; chemical analysis of colourless soda-lime-glass with SiO<(Index)2>, CaO, MgO and Na<(Index)2>O as main constituents, determination of CaO and MgO— 2 стр.