Concrete, reinforced and prestressed concrete structures - Part 2: Concrete - Specification, properties, production and conformity - Application rules for DIN EN 206-1— 62 стр.
Subsoil and groundwater; classification and description of soil and rock; borehole logging of soil and rock not involving continuous core sample recovery— 20 стр.
Tendering and performance stipulations in contracts for construction works (VOB); part C: general technical specifications in contracts for construction works (ATV); exploratory drilling— 7 стр.