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.
German standard methods for the examination of water, waste water and sludge; individual constituents (group P); determination of carbon disulfide (P 4)— 8 стр.
German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H), determination of methylen blue active and bismut active substances (H23)— 13 стр.
German standard methods for the examination of water, waste water and sludge; sludge and sediments (group S); determination of phosphorus in sludges and sediments (S 12)— 8 стр.