ISO 19947:2026

Engineered stone — Vocabulary

This document specifies terms and definitions of engineered stone intended for use in finished products such as countertops and vanities, floor and wall coverings and accessories including its raw materials, manufacturing, fabrication and installation.

Pierre agglomérée — Vocabulaire

General Information

• Status: Published
• Publication Date: 17-Mar-2026
• ICS: 01.040.91 - Construction materials and building (Vocabularies)
• ICS: 91.100.99 - Other construction materials
• Technical Committee: ISO/TC 328 - Engineered stones
• Drafting Committee: ISO/TC 328 - Engineered stones
• Current Stage: 6060 - International Standard published
• Start Date: 18-Mar-2026
• Due Date: 11-Mar-2026
• Completion Date: 18-Mar-2026

Overview

ISO 19947:2026 – Engineered stone - Vocabulary is an international standard developed by ISO that establishes clear, standardized terminology for the engineered stone industry. This standard covers terms and definitions relevant to the production, processing, and application of engineered stone materials, such as those used for countertops, vanities, floor and wall coverings, and related accessories. The vocabulary included in ISO 19947:2026 provides a common language that supports consistency and clarity across manufacturing, fabrication, installation, and specification processes worldwide.

Key Topics

ISO 19947:2026 includes terminology addressing:

• Engineered Stone Products: Definitions and classifications for various engineered stone items-including slabs, tiles, panels, cut-to-size products, rough slabs, and more.
• Raw Materials: Clear distinctions for sourced raw materials, including indigenous raw materials, post-consumer and pre-consumer materials, reclaimed waste, and recycled content.
• Aggregates and Fillers: Terms covering different types of aggregates (e.g., carbonate rock, silicate rock, quartz, granite) and fillers used in engineered stone.
• Binders and Additives: Definitions for materials such as cement, various resin types (terephthalic, unsaturated polyester, thermosetting), and common additives (adhesion promoters, pigments, accelerators).
• Process Operations: Terminology for the various stages of engineered stone production-including mixing, moulding, calibration, curing (cold and hot), hydration, distribution, and surface finishing.

The document also clarifies familiar industry terms such as artificial marble, manufactured stone, and quartz surfacing, ensuring that all stakeholders use a consistent vocabulary.

Applications

Adopting ISO 19947:2026 in practice delivers valuable benefits to professionals at every stage of the engineered stone life cycle:

• Manufacturers: Use the standardized terms for product descriptions, quality control documentation, and communication with suppliers and clients.
• Architects and Designers: Specify engineeered stone materials confidently, knowing terminology aligns with international best practices.
• Installers and Fabricators: Reference standardized process operations and product classes to reduce miscommunication during project planning and execution.
• Material Suppliers: Ensure raw materials and additives are described accurately to meet compliance requirements.
• Quality Auditors and Certification Bodies: Employ a uniform vocabulary for audits, certifications, and compliance verification across global projects.

By creating a shared understanding, ISO 19947:2026 supports improved project outcomes, simplified procurement processes, and enhanced international trade in engineered stone products.

Related Standards

ISO 19947:2026 builds on and aligns with several other key standards in construction materials, natural and engineered stone products, and industrial processes, including:

• EN 12670:2019 - Natural stone - Terminology
• EN 14618:2009 - Agglomerated stone - Terminology and classification
• EN 16954:2018 - Agglomerated stone - Slabs and cut-to-size products for flooring and stairs
• ISO 1382:2020 - Rubber - Vocabulary
• ISO 8781-1:1990 - Pigments and extenders - Methods of assessment of dispersion characteristics

For ongoing and effective use of engineered stone in construction and interior design, referencing ISO 19947:2026 ensures terminological consistency and helps meet both regulatory requirements and quality expectations worldwide.

Keywords: ISO 19947:2026, engineered stone vocabulary, engineered stone terminology, stone fabrication, stone manufacturing, engineered slabs, stone installation, construction standards, architectural materials, ISO vocabulary standard.

Standards Content (Sample)

International
Standard
ISO 19947
First edition
Engineered stone — Vocabulary
2026-03
Pierre agglomérée — Vocabulaire
Reference number
© ISO 2026
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
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Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Definition of engineered stone .1
3.2 Classifications and definitions of engineered stone products .1
3.3 Terms and definitions of sourced raw materials .2
3.4 Terms and definitions of raw materials used as aggregates and fillers .3
3.5 Definitions of raw materials used as binders .4
3.6 Definitions of raw materials used as additives .5
3.7 Terms and definitions of process operations .6
Bibliography . 8
Index . 9

iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
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The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 328, Engineered stones.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
International Standard ISO 19947:2026(en)
Engineered stone — Vocabulary
1 Scope
This document specifies terms and definitions of engineered stone intended for use in finished products
such as countertops and vanities, floor and wall coverings and accessories including its raw materials,
manufacturing, fabrication and installation.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Definition of engineered stone
3.1.1
engineered stone
composite material manufactured from a mixture of aggregates, binders and additives intended for
fabrication of countertops and vanities, floor and wall coverings and ancillary uses, for both interior and
exterior applications
Note 1 to entry: Engineered stone has also been known as artificial marble, artificial stone, manufactured stone,
agglomerated stone, engineered quartz, quartz, quartz surfacing etc.
3.2 Classifications and definitions of engineered stone products
3.2.1
classification according to the mineral nature of the aggregates
engineered stone product can be classified as calcareous nature, siliceous nature or a combination of the
two
3.2.2
classification according to the type of the binder
engineered stone product can be classified as resin, hydraulic cement or mixtures of resin and cement
3.2.3
engineered stone cut to size product
finished product obtained from a rough slab or a slab, the dimensions of which must be referred to a template
or a drawing
[SOURCE: EN 16954:2018, 3.3, modified — “engineered stone” added in the term, "need to be" changed to
"must", “agglomerated” deleted from the definition, Note 1 to entry deleted]

3.2.4
engineered stone panel
finished product with thickness ≤5,5 mm, surface area >1 m , and any edge length > 1 200 mm or an
engineered stone tile declared as a thin engineered stone panel by its manufacturer or having properties
meeting an international or national standard for thin engineered stone panels
[SOURCE: ISO/TR 17870-2:2015, 3.1.3, modified — “thin ceramic” replaced with “engineered stone” in the
term and the definition]
3.2.5
engineered stone rough slab
semi-finished engineered stone product with edges obtained either by sawing from a block or by moulding
the surface of which may or may not be the finished surface
Note 1 to entry: The size is given by nominal dimensions in this order: length, width, thickness expressed in
millimetres.
[SOURCE: EN 16954:2018, 3.1, modified — “engineered stone” added in the term, “agglomerated” replaced
by “engineered” in the definition, “the size is given by nominal dimensions in this order: length, width,
thickness expressed in millimetres” moved to the Note 1 to entry]
3.2.6
engineered stone slab
finished product obtained from rough slabs, the surface of which is a finished surface ready to use
Note 1 to entry: The dimensions of which are given by length - width - thickness (in this order), expressed in
millimetres according to defined tolerances.
[SOURCE: EN 16954:2018, 3.2, modified — “engineered stone” added in the term, “agglomerated” deleted
from the definition, “the dimensions of which are given by length - width - thickness (in this order), expressed
in millimetres according to defined tolerances” moved to the Note 1 to entry]
3.2.7
engineered stone tile
element made from engineered stone and used as covering for floors and walls
Note 1 to entry: Engineered stone generally consists of an area less than or equal to 1 m and up to 30 mm thick.
3.3 Terms and definitions of sourced raw materials
3.3.1
indigenous raw material
raw material that is recovered, harvested, or extracted within an 800 km radius of the manufacturing site
Note 1 to entry: Where materials are transported by water or rail, the distance to the manufacturing site shall be
determined by multiplying the distance that the materials are transported by water or rail by 0,25 and adding that
number to the distance transported by means other than water or rail.
3.3.2
post-consumer material
waste material generated by households or by commercial, industrial and institutional facilities in their role
as end-users of the product, which can no longer be used for its original intended purpose
3.3.3
pre-consumer material
material, solid and/or liquid, diverted from a waste stream generated by the manufacturing process
Note 1 to entry: Reutilization of materials (i.e. rework, regrind or scrap generated in a process that does not enter the
waste stream and that is capable of being reclaimed within the same process
...