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    BS EN 771-3

    Marshalls Mono Limited
    Landscape House
    Premier Way
    Elland
    Lowfields Business Park
    HX5 9HT
    United Kingdom
    BSI logo

    Certificate Number: CPR 806823
    Scope: EN 771-3:2011+A1:2015 Specification for masonry units part 3: Aggregate concrete masonry units (Dense and lightweight aggregates) - characterised as Category I

    Original Registration Date Effective Date Last Revision Date Expiry Date
    2025-05-08 2025-05-08 2025-05-08