If you cannot locate because it has been withdrawn, replaced, or renumbered (always check the BSI website for status), consider these related standards:
BS EN 772-1 is a European Standard that outlines the requirements for masonry units, including their dimensions, physical properties, and testing methods. The standard is part of a series of European Standards (EN) that have been adopted by the British Standards Institution (BSI) as BS EN. The full title of the standard is "Masonry units - Part 1: Determination of compressive strength."
There are three legitimate routes to acquiring the official :
When engineers design a building, they calculate the loads the walls must support. These calculations are based on the "declared values" of the materials. If the compressive strength of a brick is not tested correctly, the safety margins of the entire building could be compromised.
Could you double-check the number (e.g., is it BS EN 772, BS EN 771, or something else)? If you confirm, I can give you the exact title and how to obtain it.
: Focuses on the repair and modification of printed boards and assemblies, including fixing damaged laminate, traces, and pads. Key Applications
: The machine must feature a fixed lower bed and a spherically-seated upper platen that self-aligns upon contact with the specimen. It must maintain a uniform, continuous load increase without shocking the material.
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Before buying a PDF, search the BSI's "Withdrawn Standards" page. If BS EN 7721 is listed as withdrawn without replacement, it means the technical committee decided it is no longer valid. In that case, refer to EN 1433 instead.
The comprehensive document, officially cataloged as BS EN 772-1:2011+A1:2015 , dictates the precise procedural framework for crush testing. The standard applies universally across various core building materials: Compressive Strength Testing Standards | PDF - Scribd