Natural stone - Rough blocks - Requirements

This document specifies requirements for rough blocks of natural stone from which products for use in building or commemorative stones and other similar applications are made.
It does not cover artificially agglomerated stony material nor installation.

Natursteine - Rohblöcke - Anforderungen

Dieses Dokument legt Anforderungen an Rohblöcke aus Naturwerkstein fest, aus denen Erzeugnisse zur Anwendung im Bauwesen oder für Denkmale oder andere ähnliche Anwendungen hergestellt werden.
Es ist weder für künstlich hergestelltes Gesteinsmaterial noch für die Verlegung anzuwenden.

Pierres naturelles - Blocs bruts - Exigences

Le présent document spécifie les exigences relatives aux blocs bruts de pierre naturelle à partir desquels sont fabriqués des produits destinés à être utilisés dans les bâtiments, les monuments commémoratifs ou d’autres applications similaires.
Il ne couvre pas les pierres artificielles agglomérées ni la mise en oeuvre.

Naravni kamen - Surovi bloki - Zahteve

General Information

Status
Not Published
Public Enquiry End Date
09-Jul-2021
Technical Committee
Current Stage
5020 - Formal vote (FV) (Adopted Project)
Start Date
01-Jul-2022
Due Date
19-Aug-2022

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SLOVENSKI STANDARD
oSIST prEN 1467:2021
01-julij-2021
Naravni kamen - Surovi bloki - Zahteve
Natural stone - Rough blocks - Requirements
Natursteine - Rohblöcke - Anforderungen
Pierres naturelles - Blocs bruts - Exigences
Ta slovenski standard je istoveten z: prEN 1467
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
oSIST prEN 1467:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1467:2021
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oSIST prEN 1467:2021
DRAFT
EUROPEAN STANDARD
prEN 1467
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 73.020; 91.100.15 Will supersede EN 1467:2012
English Version
Natural stone - Rough blocks - Requirements

Pierres naturelles - Blocs bruts - Exigences Natursteine - Rohblöcke - Anforderungen

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 246.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1467:2021 E

worldwide for CEN national Members.
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oSIST prEN 1467:2021
prEN 1467:2021 (E)
Contents Page

European foreword ............................................................................................................................................ 3

1 Scope .......................................................................................................................................................... 4

2 Normative references .......................................................................................................................... 4

3 Terms and definitions ......................................................................................................................... 4

4 Requirements ......................................................................................................................................... 7

4.1 Requirements for geometric characteristics .............................................................................. 7

4.1.1 Measurement criteria .......................................................................................................................... 7

4.1.2 Requirements on shape ...................................................................................................................... 7

4.1.3 Requirements for volume .................................................................................................................. 7

4.1.4 Requirements for mass ....................................................................................................................... 7

4.2 Requirements of natural stone for rough blocks ...................................................................... 7

4.2.1 General...................................................................................................................................................... 7

4.2.2 Denomination......................................................................................................................................... 7

4.2.3 Visual appearance ................................................................................................................................ 7

4.2.4 Apparent density and open porosity ............................................................................................. 8

4.2.5 Flexural strength ................................................................................................................................... 8

4.2.6 Other requirements ............................................................................................................................. 8

5 Marking .................................................................................................................................................... 8

6 Evaluation of conformity and factory production control ..................................................... 8

6.1 Evaluation of conformity .................................................................................................................... 8

6.2 Type testing ............................................................................................................................................. 9

6.3 Factory production control ............................................................................................................... 9

Annex A (normative) Sampling ................................................................................................................... 11

Bibliography ....................................................................................................................................................... 15

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oSIST prEN 1467:2021
prEN 1467:2021 (E)
European foreword

This document (prEN 1467:2021) has been prepared by Technical Committee CEN/TC 246 “Natural

stones”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1467:2012.

This document is one of a series of standards for requirements of natural stone products which includes

the following:
• EN 1467, Natural stone — Rough blocks — Requirements
• EN 1468, Natural stone — Rough slabs — Requirements
• EN 1469, Natural stone products — Slabs for cladding — Requirements
• EN 12057, Natural stone products — Modular tiles — Requirements
• EN 12058, Natural stone products — Slabs for floors and stairs — Requirements
• EN 12059+A1, Natural stone products — Dimensional stone work — Requirements
Other standards on natural stone are produced by:
a) CEN/TC 178

1) EN 1341, Slabs of natural stone for external paving — Requirements and test methods

2) EN 1342, Setts of natural stone for external paving — Requirements and test methods

3) EN 1343, Kerbs of natural stone for external paving — Requirements and test methods

b) CEN/TC 128

1) EN 12326-1, Slate and stone products for discontinuous roofing and cladding — Part 1: Product

specification

2) EN 12326-2, Slate and stone products for discontinuous roofing and cladding — Part 2: Methods

of test for slate and carbonate slate
c) CEN/TC 125

1) EN 771-6, Specification for masonry units — Part 6: Natural stone masonry units

Other standards are relevant to stone aggregates for concrete, roads, railways and armourstone.

The main technical changes to EN 1467:2012 are:

• the addition of the word “usually” and the addition of Note 1 to definition 3.1;

• the transformation of Annex A from an informative to a normative Annex.
3
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oSIST prEN 1467:2021
prEN 1467:2021 (E)
1 Scope

This document specifies requirements for rough blocks of natural stone from which products for use in

building or commemorative stones and other similar applications are made.
It does not cover artificially agglomerated stony material nor installation.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 1936, Natural stone test methods - Determination of real density and apparent density, and of total and

open porosity

EN 12372, Natural stone test methods - Determination of flexural strength under concentrated load

EN 12407, Natural stone test methods - Petrographic examination
EN 12440, Natural stone - Denomination criteria
EN 12670, Natural stone - Terminology

EN 13161, Natural stone test methods - Determination of flexural strength under constant moment

EN 13373, Natural stone test methods - Determination of geometric characteristics on units

3 Terms and definitions

For the purposes of this document, the following terms and definitions given in EN 12670 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
3.1
commercial size of a rough block

size which is usually obtained by reducing each net dimension by 0,05 m (see Figure 1)

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oSIST prEN 1467:2021
prEN 1467:2021 (E)
Dimensions in millimetres
Key
_._._._ gross size
––– commercial size
Figure 1 — Gross sizes, commercial sizes of a rough block

Note 1 to entry: For shapeless rough blocks for commercial purposes, see also 4.1.2 and 4.1.4.

3.2
dimensions of a rough block
length l, width b and height h are the dimensions of a squared rough block

Note 1 to entry: They are given in the stated sequence in meters to two decimals places.

3.2.1
length
greater side in a natural layer where appropriate
3.2.2
width
smaller side in the natural layer or at right angles to length
3.2.3
height

side at right angles to the natural layer (see Figure 2) or to the plane containing length l and width b

5
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oSIST prEN 1467:2021
prEN 1467:2021 (E)
Dimensions in millimetres
Key
1 natural layer
Figure 2 — Dimensions of a rough block
3.3
gross size of the rough block

size defined by the lengths of the edges of the smallest cuboid circumscribed to a rough block (see

Figure 1)
3.4
net size of a rough block

size which is determined by establishing the greatest inscribed cuboid block which does not contain any

sides without right angles nor contain drill holes and other holes; the resulting figure is the net size

3.5
rough block

basis of the usable stone consisting of rocks obtained directly from quarries or erratics with no processing

whatsoever except extraction and shaping by cutting or splitting
3.6
rough block of specific size
squared rough block with certain given dimensions
3.7
shapeless rough block
rough block without regular shape and size
3.8
squared rough block
rough block which corresponds approximately to a regular cuboid

Note 1 to entry: Normally the ratio obtainable by dividing the mass of the squared rough block by the apparent

density should be bigger than 80 % of the gross size. If such a ratio is equal to or less than 80 %, the block is

considered a shapeless rough block.
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oSIST prEN 1467:2021
prEN 1467:2021 (E)
4 Requirements
4.1 Requirements for geometric characteristics
4.1.1 Measurement criteria

All measurements shall be carried out in accordance with EN 13373 and indicated in metres to two

decimals places.
4.1.2 Requirements on shape

The six sides of squared rough block shall be approximately flat, right-angled and parallel, and

correspond to the shape of a cuboid. Local deviations from the cuboid shape are permitted.

Shapeless rough blocks for commercial purposes are only measured by mass, (see 4.1.4); gross size shall

be provided upon request.

Rough blocks of specific size shall have dimensions not lower than the minimum values and not greater

than the maximum values agreed between the purchaser and supplier.
4.1.3 Requirements for volume

The volume of a rough block shall be stated in cubic metres to three decimals places. The volume may be

calculated by dividing the mass of the block by the apparent density.
4.1.4 Requirements for mass

The mass of a rough block shall be stated in tonnes with three decimals. The mass shall be obtained by

weighing; for squared blocks the approximate mass may be obtained by multiplying the volume by the

apparent density.
4.2 Requirements of natural stone for rough blocks
4.2.1 General

The following characteristics shall be declared where requested by this European Standard, or with

reference to use conditions.

The declared values shall be representative of the current production. However, due to natural variations

of the stone materials, deviations from the declared values may occur. Expected deviations shall be

indicated by the manufacturer.

In case of layered stone: If a rough block contains different types of stones (see 4.2.2) all characteristics

shall be declared.
4.2.2 Denomination

The denomination (traditional name, petrological family, typical colour and place of origin) shall always

be declared in accordance with EN 12440.
NOTE The place of origin can be given by GPS coordinates.
The petrologic definition shall be determined in accordance with EN 12407.
4.2.3 Visual appearance
This characteristic shall be declared upon request.

The colour, veining, texture, etc. of the stone shall be identified visually (for example by a polished

reference sample). The reference sample shall be provided by the supplier.
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