Stones2018-10-01T09:00:15+00:00

Find the standard or test type you need.

Natural stones and stone agglomerates

Mandatory CE marking with level 4 certification (manufacturer’s self-declaration) for stone products in general, first introduced in 2003 for some products (outdoor floors) was completed in 2006 for the remaining stone products (indoor floors, wall coatings, etc.) to include the whole commercial range of stone materials such as porphyry, granite, marble and limestone.

CE marking was made mandatory at a later stage also for stone agglomerates for floors (since January 2010) and wall coatings (since August 2015).

Find the list of reference harmonised standards for natural stones and stone agglomerates, sorted by intended use.

Harmonised standard

Reference product

UNI EN 1341

Slabs of natural stone for external paving

UNI EN 1342

Setts of natural stone for external paving

UNI EN 1343

Kerbs of natural stone for external paving

UNI EN 12057

Natural stone products – Modular tiles

UNI EN 12058

Natural stone products – Slabs for floors and stairs

UNI EN 1469

Natural stone products – Slabs for cladding

UNI EN 771-6

Natural stone masonry units

UNI EN 12326-1

Slate and stone for discontinuous roofing and external cladding

UNI EN 15285

Agglomerated stone – Modular tiles for flooring and stairs (internal and external)

EN 15286:2013

Agglomerated stone – Slabs and tiles for wall finishes (internal and external)

Regulations

Standards define both the type and frequency of lab tests to determine chemical, physical and mechanical parameters required for product compliance.

Based on the applicable regulations, manufacturers of natural stone or agglomerates shall:

  • Supply a well documented monitoring system for the production process in compliance with the applicable harmonised standards; such documents are defined as “Factory Production Control (FPC) documents”
  • Carry out preliminary tests and plan a regular monitoring plan;
  • Classify and declare – based on the test results – product features in compliance with the standards.

Our services

We have a UNI EN ISO 9001 certified test lab that can perform all tests required by harmonised standard for natural stones and stone aggregates and by the main tender specifications.

Samples are usually provided by the client according to the number and size required for every test type.

A customised software application makes it possible to keep the cycle and the results monitored thanks to a database to perform statistic checks, also providing updates to the required CE documents, which will be sent for free as a PDF file in case at least a complete test cycle is ordered. The PDF file can be reproduced or directly transferred to corporate transport documents.

Our technical staff can provide you with all of the necessary documents for the CE marking, material technical sheets as well as information on all specific standards for the sector and assist you during testing and for any claims.

We do also perform lab and building-site tests to determine slip-wear resistance in compliance with the British Ceramic Research Association Ltd. (B.C.R.A.) Rep. CEC.6/81 method, also known as “Tortus Test”. The Ministerial Decree 13/89 on removing architectural barriers also provides for this method – under paragraph 8.2.2 – based on which the law defines an objective value in order to assess whether a surface is safe in terms of “slipping risk”.

Find the list of tests carried out on natural stones either directly or through associated bodies.

Our services

We have a UNI EN ISO 9001 certified test lab that can perform all tests required by harmonised standard for natural stones and stone aggregates and by the main tender specifications.

Samples are usually provided by the client according to the number and size required for every test type.

A customised software application makes it possible to keep the cycle and the results monitored thanks to a database to perform statistic checks, also providing updates to the required CE documents, which will be sent for free as a PDF file in case at least a complete test cycle is ordered. The PDF file can be reproduced or directly transferred to corporate transport documents.

Our technical staff can provide you with all of the necessary documents for the CE marking, material technical sheets as well as information on all specific standards for the sector and assist you during testing and for any claims.

We do also perform lab and building-site tests to determine slip-wear resistance in compliance with the British Ceramic Research Association Ltd. (B.C.R.A.) Rep. CEC.6/81 method, also known as “Tortus Test”. The Ministerial Decree 13/89 on removing architectural barriers also provides for this method – under paragraph 8.2.2 – based on which the law defines an objective value in order to assess whether a surface is safe in terms of “slipping risk”.

Find the list of tests carried out on natural stones either directly or through associated bodies.

Natural stone tests

Test type

Test method

Standard CE marking tests

Determination of real density and apparent density, and of total and open porosity

EN 1936

Determination of axial compressive strength

EN 1926

Compressive strength and freeze–thaw resistance (56 cycles)

EN 12371 + 1926

Determination of flexural strength under concentrated load

EN 12372

Flexural strength and freeze–thaw resistance (56 cycles)

EN 12371 + 12372

Determination of water absorption at atmospheric pressure

EN 13755

Determination of the abrasion resistance

EN 14157

Determination of the slip resistance by means of the pendulum tester

EN 14231

Petrographic examination

EN 12407

Determination of resistance to ageing by thermal shock

EN 14066

Determination of the breaking load at dowel hole

EN 13364

Test type

Test method

Chemical-physical tests

Determination of linear thermal expansion coefficient

EN 14581

Determinazione resistenza raggi UV

ISO 11341

Determination of sound speed propagation

EN 14579

Determinazione dei radionuclidi gamma

10797

Resistance against chemicals and staining agents

EN 13310.5.5

Determination of chemical resistance

EN 10545-13

Determination of resistance to salt crystallisation

EN 12370

Determination of resistance to ageing by SO2 action in the presence of humidity

EN 13919

Determination of rupture energy

EN 14158

Determination of water absorption coefficient by capillarity

EN 1925

Flexural strength and freeze–thaw resistance (56 cycles)

EN 12371 + 12372

Determination of static elastic modulus

EN 14580

Determination of resistance to ageing by salt mist

EN 14147

Test type

Test method

Slate products for roofing

Determination of the apparent calcium carbonate and non carbonate carbon content

EN 12326-2 §13.1

Carbonate content

EN 12326-2 §14.1

Sulfur dioxide exposure

EN 12326-2 §15.1

Determination of the modulus of rupture

EN 12326-2 §10

Determination of the modulus of rupture + Freeze-thaw test

EN 12326-2 §10+12

Bestimmung der Wasseraufnahme

EN 12326-2 §11

Prüfung der Temperatur-Wechsel-Beständigkeit

EN 12326-2 §16

Petrographic examination

EN 12326-2 §17

Test type

Test method

Sliding tests

Determination of the anti-slip property

DIN 51130

Determination of the anti-slip property – wet loaded barefoot areas – walking method

DIN 51097

Determination of the anti-slip property

BCRA

Test type

Test method

Test ASTM

 

Modulus of Rupture

ASTM C99

Absorption and Bulk Specific Gravity

ASTM C97

 Compressive strength

ASTM C170

Abrasion Resistance of Stone

ASTM C241

Resistance of Concrete to Rapid Freezing and Thawing1

ASTM 666

Flexural Strength

ASTM C880

Test type

Test method

Various

 

Realizzazione provino in laboratorio

Carrying out lab tests means – for the manufacturer – preparing samples in the required amount and size for every single test.

Samples must be prepared with the right finishing required for the individual tests, with parallel surfaces and perpendicular faces (planarity +/- 0,1 mm).

Find the table with samples and necessary measurements to perform the main tests provided for by the harmonised standards.

Stone agglomerates tests

Harmonized standard

Reference product

EN 14617-1

Agglomerated stone – Determination of apparent density and water absorption

EN 14617-2

Agglomerated stone – Determination of flexural strength (bending)

EN 14617-4

Agglomerated stone – Determination of the abrasion resistance

EN 14617-5

Agglomerated stone – Determination of freeze and thaw resistance

EN 14617-6

Agglomerated stone – Determination of thermal shock resistance

EN 14617-8

Agglomerated stone – Determination of resistance to fixing (dowel hole)

EN 14617-9

Agglomerated stone – Determination of impact resistance

EN 14617-10

Agglomerated stone – Determination of chemical resistance

EN 14617-11

Agglomerated stone – Determination of linear thermal expansion coefficient

EN 14617-12

Agglomerated stone – Determination of dimensional stability

EN 14617-13

Agglomerated stone – Determination of electrical resistivity

EN 14617-15

Agglomerated stone – Determination of compressive strength

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