BS EN 12390-2:2019!
This standard specifies the method for determining the compressive strength of hardened concrete test specimens, including cubes, cylinders, and other shapes. The test is used to evaluate the strength of concrete in structures, and it's an essential aspect of quality control and assurance in construction. bs en 12390-2:2019
That's a British Standard (BS) and European Norm (EN) that outlines the testing methods for hardened concrete. Specifically, Part 2 of the standard focuses on the "Determination of compressive strength of test specimens". bs en 12390-2:2019
BS EN 12390-2:2019 - Testing hardened concrete - Part 2: Determination of compressive strength of test specimens bs en 12390-2:2019
Here's a brief overview: