Petroleum and natural gas industries. Rotary drilling equipment. Part 2. Inspection and classification of used drill stem elements. General technical requirements and control methods
Carbonaceous materials for use in the production of aluminium. Green and calcined coke. Determination of trace elements by flame atomic absorption spectroscopy
Automobile roads of general use. Viscous petroleum road bitumens. The method determining of the flexural creep stiffness using the bending beam rheometer (BBR)