Standardization of definitions, requirements and test methods for natural stones relating to rough blocks, slabs, semifinished and finished products intended for use in in flooring/pavement, stairs, wall veener/cladding, countertops and other uses for both interior and exterior applications.

Quick links


Participating members


Observing members

Reference Title Type
ISO/TC 327/AG 1 Survey of related standards Working group
ISO/TC 327/AG 2 Strategic business plan Working group
ISO/TC 327/AG 3 Terminology Working group
ISO/TC 327/AHG 1 Test methods Working group


Liaison Committees from ISO/TC 327

ISO/TC 327 can access the documents of the committees below:

Reference Title ISO/IEC
ISO/TC 328 Engineered stones ISO
Date Month Location TC/SC Note
28-29 September 2022 Verona (Italy) ISO/TC 327  

* Information definite but meeting not yet formally convened
** Provisional

ISO/TC 327 - Secretariat

ANSI [United States]

American National Standards Institute
1899 L St NW, 11th Floor
Washington, DC 20036
United States

Tel: +1 212 642 49 00 / +
Fax: +1 212 398 00 23 / +