Bs En 7721 Pdf [upd] -

: The unit is centered on the platens of a compression testing machine. A uniform load is applied and increased continuously until the unit fails or "crushes".

BS EN 772-1 specifies the procedure to determine the compressive strength of masonry units (bricks, blocks, etc.) by applying a compressive load until failure. The standard ensures consistent, comparable strength results across laboratories and manufacturers. bs en 7721 pdf

The conditioning method used (e.g., oven-dry vs. immersion). : The unit is centered on the platens

The BS EN 772-1 standard is significant because it provides a uniform method for determining the compressive strength of masonry units, which is essential for: or immersion in water.

Specimens must be conditioned before testing. Common methods include air-drying, oven-drying, or immersion in water.