German standard methods for the examination of water, waste water and sludge - Physical and physico-chemical parameters (group C) - Part 10: Calcit saturation of water (C 10)— 34 стр.
Concrete, reinforced and prestressed concrete structures - Part 2: Concrete - Specification, properties, production and conformity; Application rules for DIN EN 206-1; Amendment A1— 23 стр.
German standard methods for the examination of water, waste water and sludge - Physical and physico-chemical parameters (group C) - Part 10: Calcit saturation of water (C 10)— 34 стр.