Copper, lead and zinc sulfide concentrates. Determination of gold and silver. Fire assay gravimetric and flame atomic absorption spectrometric method— 62 стр.
Plastics. Thermoplastic polyurethanes for moulding and extrusion. Distinction between ether and ester polyurethanes by determination of the ester group content— 14 стр.
Acquisition and management of meteorological precipitation data from a gauge network, Code of practice for the design and manufacture of storage and automatic collecting raingauges— 32 стр.