The minimum performance standards established by UKCSA for its cast stone manufacturing Full Members are supported by rigorous testing and quality control regimes:
UKCSA Cube compressive strength
(test results are regularly submitted to UKCSA by all cast stone manufacturing Full Members, as a condition of membership).
The minimum standard required of UKCSA Full Members represents over 40% increase in compressive strength above that indicated in the British Standard for Cast Stone, BS 1217, and at least 75% above the minimum requirement in the Standard for Manufactured Stone, BS EN 771-5.
UKCSA CAT (Capillary Absorption Test) for semi-dry cast stone
(quarterly results submitted to UKCSA by semi-dry cast stone manufacturing Full Members, as a condition of membership).
UKCSA CAT (Capillary Absorption Test) for wet-cast cast stone
(either annual CAT, or annual ISAT, results submitted to UKCSA by wet-cast cast stone manufacturing Full Members, as a condition of membership).
UKCSA ISAT (Initial Surface Absorption Test) for wet-cast cast stone
(either annual CAT, or annual ISAT, results submitted to UKCSA by wet-cast cast stone manufacturing Full Members, as a condition of membership).
UKCSA Documented quality procedures for all UKCSA manufacturing Full Members.
The Association’s Quality Mark Scheme gives users and specifiers of cast stone further reassurance that the cast stone they are using is durable and produced to the highest standards. The UKCSA Quality Mark label on cast stone indicates that the cast stone product is manufactured to far higher quality and testing requirements than required for either cast stone to BS 1217 or for CE Marking of manufactured stone to BS EN 771-5.
UKCSA Plant Inspections.
Confirmation of compliance with the UKCSA Operating Standard – Plant Audit Document for all cast stone manufacturing, new applicants for UKCSA Full Membership, and annual confirmation of compliance for all existing Full Members as a condition of membership.
