DIN 52170-4:2023-02 Determination of composition of hardened concrete - Part 4: Hydrochloric acid soluble and/or insoluble aggregate - Materials used for the concrete totally or partly available
2023DIN 52170-4:2023-02 Determination of composition of hardened concrete - Part 4: Hydrochloric acid soluble and/or insoluble aggregate - Materials used for the concrete totally or partly available
1980DIN 52170-4:1980 Determination of composition of hardened concrete; hydrochloric acid soluble and/or insoluble aggregate, materials used for the concrete totally or partly available