EN 771-6:2011/FprA1

Specification for masonry units - Part 6: Natural stone masonry units

This European Standard specifies the characteristics and performance requirements of masonry units manufactured from natural stone the width of which is equal to or greater than 80 mm, for which the main intended uses are common, facing or exposed masonry units in load bearing or non-load bearing building and civil engineering applications These units are suitable for all forms of coursed or random masonry walling, including single leaf, cavity, partition, retaining and the external masonry to chimneys. They can provide fire protection, thermal insulation, sound insulation and sound absorption. This European Standard includes natural stone masonry units of an overall non-rectangular parallelepiped shape, specially shaped and accessory units for internal and external application. It defines the performance related to e.g. strength, petrographic description, density, porosity, dimensional accuracy, thermal conductivity, water absorption, and frost resistance and provides for the evaluation of conformity of the product to this European Standard. The marking requirements for products covered by this European Standard are also included. This European Standard does not cover storey height panels, natural stone for paving, chimney flue linings nor units intended for use as damp proof course.

Festlegungen für Mauersteine - Teil 6: Natursteine

Spécification pour éléments de maçonnerie - Partie 6: Eléments de maçonnerie en pierre naturelle

Specifikacija za zidake - 6. del: Zidaki iz naravnega kamna

General Information

• Status: Not Published
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: CEN/TC 125 - Masonry
• Drafting Committee: CEN/TC 125/WG 1 - Masonry units
• Current Stage: 5060 - Closure of Vote - Formal Approval
• Start Date: 10-Dec-2014
• Due Date: 13-Nov-2014
• Completion Date: 10-Dec-2014
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/116 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on masonry and related products
• Ref Project: SIST EN 771-6:2011/kFprA1:2014 - Specification for masonry units - Part 6: Natural stone masonry units

Relations

• Merged Into: EN 771-6:2011+A1:2015 - Specification for masonry units - Part 6: Natural stone masonry units
• Effective Date: 19-Jan-2023
• Amends: EN 771-6:2011 - Specification for masonry units - Part 6: Natural stone masonry units
• Effective Date: 18-Apr-2012

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2014
Specifikacija za zidake - 6. del: Zidaki iz naravnega kamna
Specification for masonry units - Part 6: Natural stone masonry units
Festlegungen für Mauersteine - Teil 6: Natursteine
Spécification pour éléments de maçonnerie - Partie 6: Eléments de maçonnerie en pierre
naturelle
Ta slovenski standard je istoveten z: EN 771-6:2011/FprA1
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
EN 771-6:2011
NORME EUROPÉENNE
EUROPÄISCHE NORM
FprA1
July 2014
ICS 91.100.15
English Version
Specification for masonry units - Part 6: Natural stone masonry
units
Spécification pour éléments de maçonnerie - Partie 6: Festlegungen für Mauersteine - Teil 6: Natursteine
Eléments de maçonnerie en pierre naturelle
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 125.
This draft amendment A1, if approved, will modify the European Standard EN 771-6:2011. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.

This draft amendment 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 771-6:2011/FprA1:2014 E
worldwide for CEN national Members.

Contents
Page
Foreword .3
1 Modification to the Foreword .4
2 Modification to the Scope .4
3 Modification to 5.1, General .4
4 Modification to 5.2, Denomination .4
5 Modification to 5.4, Configuration .4
6 Modification to 5.4.1, General .4
7 Modification to 5.4.2, Surface appearance .4
8 Modification to 5.6.1, Compressive strength .5
9 Modification to 5.6.2, Flexural strength .5
10 Modification to 5.7.1, General .5
11 Addition of a new subclause 5.15 .5
12 Modification to 6.1, Description and designation .5
13 Modification to Clause 8, Evaluation of conformity .5
14 Modification to 8.1, General .6
15 Modification to 8.2, Initial type testing .6
16 Modification to 8.3.1, General .7
17 Modification to 8.3.3, Production equipment .7
18 Modification to 8.3.10, Nonconforming products .7
19 Modification to Annex A .8
20 Modification to A.1 .8
21 Modification to A.2.5 .8
22 Modifications to Annex B .9
23 Modification to Annex ZA . 10

Foreword
This document (EN 771-6:2011/FprA1:2014) has been prepared by Technical Committee CEN/TC 125
“Masonry”, the secretariat of which is held by BSI.
This document is currently submitted to the Unique Acceptance Procedure.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
NOTE Due to fact that the Framework Partnership Agreement between the Commission and CEN & CENELEC is not
signed yet, there are currently no New Approach Consultants in place for 2014. Therefore the provisions of CEN-
CENELEC Guide 15 cannot be met.
This shall not prevent the processing of draft standards nor the offering of harmonized standards to the Commission. In
particular, draft standards can be sent to vote without Consultant assessment.
This note will be removed from the Foreword of the finalized publication.

1 Modification to the Foreword
th
th
Replace the 5 and the 6 paragraphs with the following:
“This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association and supports basic requirements for construction works of the EU
Construction Products Regulation (Regulation (EU) No 305/2011).
For relationship with EU Regulation/Directive(s), see informative Annex ZA, which is an integral part of this
document.”.
2 Modification to the Scope
rd
In the 3 paragraph, replace “evaluation of conformity” with “assessment and verification of constancy of
performance (AVCP)”.
3 Modification to 5.1, General
rd
In the 3 paragraph, replace “initial type tests” with “product type determination.”
4 Modification to 5.2, Denomination
st
In the 1 paragraph, replace “petrological” with “petrographic”.
5 Modification to 5.4, Configuration
Replace the title with the following:
“Configuration and appearance”.
6 Modification to 5.4.1, General
Replace 5.4.1 with the following:
“5.4.1 Configuration
When relevant to the uses, for which they are put on the market, the geometry, shape and features of natural
stone masonry units shall be declared by the manufacturer. The declaration may be made by reference to one
or another of the groups defined in EN 1996-1-1.
NOTE Dimensioned natural stone units are considered to be Group 1.
The test shall be carried out according to EN 772-16.”.
7 Modification to 5.4.2, Surface appearance
st
In the 1 paragraph, add “shall be delivered to the customer upon request. It shall” after "An indicative
sample" to read:
“An indicative sample shall be delivered to the customer upon request. It shall show the general tonality and
finish of the natural stone, but does not imply any total uniformity in colour, and veins between the sample and
supply.”.
8 Modification to 5.6.1, Compressive strength
st
In the 1 paragraph, delete “In addition the manufacturer may declare the characteristic compressive strength
(5 % fractile).”.
9 Modification to 5.6.2, Flexural strength
st
After the 1 paragraph, add the following paragraph:
“When the stone shows bedding planes or anisotropy features, the declaration shall give the orientation of the
force relatively to them.”.
10 Modification to 5.7.1, General
Delete “intended”.
11 Addition of a new subclause 5.15
Add a new clause:
“5.15 Dangerous substances
National regulations on dangerous substances may require verification and declaration on release, and
sometimes content, when construction products covered by this standard are placed on those markets.
In the absence of European harmonized test methods, verification and declaration on release/content should
be done taking into account national provisions in the place of use.
NOTE An informative database covering European and national provisions on dangerous substances is available at
the Construction web site on EUROPA accessed through: http://ec.europa.eu/enterprise/construction/cpd-ds/.”.
12 Modification to 6.1, Description and designation
After item m), add the following:
“n) dangerous substances (see 5.15).”.
13 Modification to Clause 8, Evaluation of conformity
Replace the title with the following:
“Assessment and verification of constancy of performance (AVCP)”.
14 Modification to 8.1, General
Replace the text of 8.1 with the following:
"The manufacturer shall demonstrate compliance of his product with the requirements of this European
Standard and with the declared performance for the product properties by carrying out both:
 product type determination (see 8.2), which can be physical testing, calculation, reference to tabulated
values or combinations of these methods;
 factory production control (see 8.3).
Alternative methods of test to the reference methods specified in this European Standard may be adopted
except for the product type determination tests and in case of dispute, provided that these alternative methods
satisfy the following:
a) a correlation can be shown to exist between the results from the reference method and those from the
alternative method; or
b) a safe relationship can be demonstrated when using the alternative method compared to the reference
methods and
c) the information on which the relationship is based is available.”.
15 Modification to 8.2, Initial type testing
Replace 8.2 with the following:
“8.2 Product type determination
After completion of the development of a new product type and before placing on the market, appropriate
product type determination shall be carried out to confirm that the properties predicted from the development
meet the requirements of this standard and the performance of the characteristics to be declared for the
product.
Whenever a major change in the source, blend, or nature of raw materials occurs, or when there is a change
in processing conditions, leading to what the manufacturer considers will constitute a new product type being
produced, the appropriate product type determination shall be repeated.
The manufacturer may define product groups. The product group may differ according to the characteristics in
question.
In the product type determination process a manufacturer may take in consideration already existing test
results.
A manufacturer may use the product type determination results determined by someone else (e.g. another
manufacturer or a research technology & development service provider) to justify his own declaration of
performances regarding a product that is manufactured according to the same design and with raw materials,
constituents and manufacturing methods of the same kind, provided that permission is given by the owner of
the results, and the results are valid for both products.
The tests to be conducted shall be the tests or calculations as described in Table A.1 for the properties
selected from the following list relevant to the manufacturer’s declaration for the product type’s intended use:
 dimensions and tolerances;
 configuration;
 apparent density;
 compressive strength;
 flexural strength;
 shear bond strength;
 flexural bond strength;
 open porosity;
 water absorption coefficient by capillarity;
 freeze/thaw resistance;
 thermal properties;
 reaction to fire;
 water vapour permeability.
Sampling for type testing shall be in accordance with Annex A.
The results of type tests shall be recorded.
NOTE For the performance characteristics to be determined in order to address the Declaration of Performance and
CE marking provisions, see Table ZA.1.”.
16 Modificati
...