EN 492:2012+A2:2018
(Main)Fibre-cement slates and fittings - Product specification and test methods
Fibre-cement slates and fittings - Product specification and test methods
This European Standard specifies the technical requirements and establishes methods of control and test as well as acceptance conditions for fibre-cement slates and their fibre-cement fittings for one or more of the following uses:
- roofing;
- internal wall finishes;
- external wall and ceiling finishes.
This European Standard applies to fibre-cement slates with a height dimension h (see Clause 4) not exceeding 850 mm for overlapping assembly. For the purpose of this European Standard, fibre-cement slates have been classified according to their bending moment.
This European Standard covers fibre-cement slates reinforced with fibres of different types as specified in 5.1.1.
This European Standard does not include calculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing of the installed products.
Faserzement-Dachplatten und dazugehörige Formteile - Produktspezifikation und Prüfverfahren
Diese Europäische Norm legt die technischen Anforderungen an und die Verfahren zur Kontrolle und Prüfung sowie die Abnahmebedingungen für Faserzement Dachplatten und dazugehörige Faserzement-Formteile für einen oder mehrere der folgenden Verwendungszwecke fest:
- Dachdeckungen;
- Innenwandbekleidungen;
- Außenwand und Deckenbekleidungen.
Diese Europäische Norm gilt für Faserzement Dachplatten bis zu einer maximalen Höhe h von 850 mm (siehe Abschnitt 4) für eine überlappende Verlegung. Für die Anwendung dieser Europäischen Norm werden Faserzement Dachplatten nach ihrem Biegemoment klassifiziert.
Diese Europäische Norm erstreckt sich auf Faserzement Dachplatten, die mit Fasern unterschiedlicher Art, wie in 5.1.1 festgelegt, bewehrt sind.
Diese Europäische Norm enthält keine Berechnungen zu Bauleistungen, Anforderungen an die Ausführung, Verlegeverfahren, Windsogsicherheit oder Regensicherheit der verlegten Produkte.
Ardoises en fibres-ciment et leurs accessoires en fibres-ciment - Spécification du produit et méthodes d'essai
La présente Norme européenne spécifie les exigences techniques et établit les méthodes de contrôle et d'essai ainsi que les conditions de réception des ardoises en fibres-ciment et de leurs accessoires en fibres-ciment utilisés pour un ou plusieurs des usages suivants :
- la toiture ;
- la finition des murs intérieurs ;
- les revêtements extérieurs pour murs et plafonds.
La présente Norme européenne s'applique aux ardoises en fibres-ciment dont la hauteur h (voir Article 4) ne dépasse pas 850 mm pour une pose avec recouvrement. Pour les besoins de la présente Norme européenne, les ardoises en fibres-ciment ont été classées en fonction de leur moment de flexion.
La présente Norme européenne s'applique aux ardoises en fibres-ciment renforcées à l'aide de fibres de types différents, comme spécifié en 5.1.1.
La présente Norme européenne n'inclut pas les calculs relatifs aux travaux, aux exigences de conception, aux techniques de pose, aux soulèvements par le vent ou à l'étanchéité à la pluie des produits déjà posés.
Vlaknato-cementne strešne plošče in fazonski kosi - Specifikacija za izdelek in preskusne metode
Ta evropski standard določa tehnične zahteve in metode za nadzor ter preskusne metode in pogoje za sprejem za vlaknato-cementne strešne plošče ter njihove vlaknato-cementne fazonske kose za eno ali več navedenih vrst uporabe:
– prekrivanje streh;
– zaključke notranjih sten;
– zaključke zunanjih sten in stropov.
Ta evropski standard se uporablja za vlaknato-cementne strešne plošče, katerih dimenzija višine h (glej točko 4) ne presega 850 mm za prekrivno sestavljanje. V tem evropskem standardu so vlaknato-cementne strešne plošče razvrščene glede na njihov upogibni moment.
Ta evropski standard zajema vlaknato-cementne strešne plošče, ojačane z različnimi vrstami vlaken, kot je določeno v točki 5.1.1.
Ta evropski standard ne vključuje izračunov v zvezi z izdelavo, oblikovnih zahtev, montažnih tehnik in preverjanja odpornosti nameščenih izdelkov proti vetru ali dežju.
General Information
- Status
- Published
- Publication Date
- 24-Apr-2018
- Withdrawal Date
- 30-Jan-2020
- Technical Committee
- CEN/TC 128 - Roof covering products for discontinuous laying and products for wall cladding
- Drafting Committee
- CEN/TC 128/SC 4/WG 1 - Fibre cement slates
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 25-Apr-2018
- Completion Date
- 25-Apr-2018
Relations
- Merged From
EN 492:2012+A1:2016 - Fibre-cement slates and fittings - Product specification and test methods - Effective Date
- 18-Jan-2023
Overview
EN 492:2012+A2:2018 is the CEN European standard for fibre‑cement slates and fibre‑cement fittings covering product specification, test methods and acceptance conditions. It applies to slates used for roofing, internal wall finishes, and external wall and ceiling finishes, and applies to slates with a height dimension h ≤ 850 mm for overlapping assembly. Slates are classified by bending moment and the standard covers fibre‑cement products reinforced with various fibre types (see Clause 5.1.1). EN 492 sets the rules for type testing, factory production control and consignment inspection, but does not cover design, installation techniques or structural calculations (wind uplift, rainproofing).
Key Topics
- Product requirements
- Composition and appearance/finish requirements
- Dimensional tolerances and thickness specifications
- Classification by bending moment
- Physical and mechanical characteristics
- Apparent density and mechanical performance (breaking load / bending moment)
- Water impermeability requirements
- Durability and climatic performance
- Freeze–thaw, heat–rain, warm water and soak–dry test regimes
- Fire performance and safety
- External fire performance (referenced to EN 13501‑5 classes)
- Reaction to fire and release of dangerous substances
- Assessment & quality control
- Type testing and test sample requirements
- Factory Production Control (FPC) and AVCP (Assessment and Verification of Constancy of Performance)
- Consignment inspection sampling and acceptance criteria
- Test methods covered
- Dimensional tests, apparent density, mechanical (breaking) tests
- Water impermeability and climatic exposure procedures
- Fire test procedures and interpretation
- Marking, labelling and packaging requirements
Applications and Users
EN 492 is intended for:
- Manufacturers of fibre‑cement slates and fittings to specify product performance and routine quality control (FPC)
- Test laboratories conducting type tests, durability and fire testing
- Architects, specifiers and consultants who need harmonized product data for material selection in roofing and cladding projects
- Regulators, procurement teams and certification bodies assessing compliance with European construction product rules
- Supply chain quality managers and contractors who require clear acceptance criteria for deliveries
Practical benefits include standardized test methods for durability and mechanical performance, traceable product classification by bending moment, and established procedures for production control and consignment acceptance.
Related standards
- EN 13501‑5 - External fire performance classification (referenced in Annex D)
- EU Regulation No 305/2011 (CPR) - Relationship described in Annex ZA regarding CE marking and AVCP
- Developed by CEN/TC 128 (Roof covering products for discontinuous laying and wall cladding)
Keywords: EN 492, fibre‑cement slates, product specification, test methods, CEN, roofing, bending moment, durability tests, factory production control, AVCP, fire performance.
Frequently Asked Questions
EN 492:2012+A2:2018 is a standard published by the European Committee for Standardization (CEN). Its full title is "Fibre-cement slates and fittings - Product specification and test methods". This standard covers: This European Standard specifies the technical requirements and establishes methods of control and test as well as acceptance conditions for fibre-cement slates and their fibre-cement fittings for one or more of the following uses: - roofing; - internal wall finishes; - external wall and ceiling finishes. This European Standard applies to fibre-cement slates with a height dimension h (see Clause 4) not exceeding 850 mm for overlapping assembly. For the purpose of this European Standard, fibre-cement slates have been classified according to their bending moment. This European Standard covers fibre-cement slates reinforced with fibres of different types as specified in 5.1.1. This European Standard does not include calculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing of the installed products.
This European Standard specifies the technical requirements and establishes methods of control and test as well as acceptance conditions for fibre-cement slates and their fibre-cement fittings for one or more of the following uses: - roofing; - internal wall finishes; - external wall and ceiling finishes. This European Standard applies to fibre-cement slates with a height dimension h (see Clause 4) not exceeding 850 mm for overlapping assembly. For the purpose of this European Standard, fibre-cement slates have been classified according to their bending moment. This European Standard covers fibre-cement slates reinforced with fibres of different types as specified in 5.1.1. This European Standard does not include calculations with regard to works, design requirements, installation techniques, wind uplift or rain proofing of the installed products.
EN 492:2012+A2:2018 is classified under the following ICS (International Classification for Standards) categories: 91.100.40 - Products in fibre-reinforced cement. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 492:2012+A2:2018 has the following relationships with other standards: It is inter standard links to EN 492:2012+A1:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 492:2012+A2:2018 is associated with the following European legislation: EU Directives/Regulations: 305/2011; Standardization Mandates: M/121, M/122. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 492:2012+A2:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2018
1DGRPHãþD
SIST EN 492:2013+A1:2016
9ODNQDWRFHPHQWQHVWUHãQHSORãþHLQID]RQVNLNRVL6SHFLILNDFLMD]DL]GHOHNLQ
SUHVNXVQHPHWRGH
Fibre-cement slates and fittings - Product specification and test methods
Faserzement-Dachplatten und dazugehörige Formteile - Produktspezifikation und
Prüfverfahren
Ardoises en fibres-ciment et leurs accessoires en fibres-ciment - Spécification du produit
et méthodes d'essai
Ta slovenski standard je istoveten z: EN 492:2012+A2:2018
ICS:
91.060.20 Strehe Roofs
91.100.40 &HPHQWQLL]GHONLRMDþDQL] Products in fibre-reinforced
YODNQL cement
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 492:2012+A2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2018
EUROPÄISCHE NORM
ICS 91.100.40 Supersedes EN 492:2012+A1:2016
English Version
Fibre-cement slates and fittings - Product specification and
test methods
Ardoises en fibres-ciment et leurs accessoires en Faserzement-Dachplatten und dazugehörige Formteile
fibres-ciment - Spécification du produit et méthodes - Produktspezifikation und Prüfverfahren
d'essai
This European Standard was approved by CEN on 24 November 2015 and includes Amendment 2 approved by CEN on 9
November 2017.
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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 492:2012+A2:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Symbols and abbreviations . 7
5 Product requirements . 8
5.1 General . 8
5.1.1 Composition . 8
5.1.2 Appearance and finish . 8
5.2 Dimensions and tolerance . 8
5.2.1 General . 8
5.2.2 Thicknesses . 8
5.2.3 Tolerances on nominal dimensions . 9
5.3 Physical requirements and characteristics for fibre-cement slates . 9
5.3.1 General . 9
5.3.2 Apparent density . 9
5.3.3 Mechanical characteristics . 9
5.3.4 Water impermeability . 9
5.4 Durability requirements . 10
5.4.1 General . 10
5.4.2 Freeze-thaw . 10
5.4.3 Heat-rain . 10
5.4.4 Warm water . 10
5.4.5 Soak-dry . 10
5.5 Fire and safety . 10
5.5.1 External fire performance . 10
5.5.2 Reaction to fire . 10
5.5.3 Release of dangerous substances . 10
5.6 Product information . 11
6 !Assessment and verification of constancy of performance — AVCP . 11
6.1 General . 11
6.2 Type testing . 11
6.2.1 General . 11
6.2.2 Test samples, testing and compliance criteria . 12
6.2.3 Test reports . 12
6.3 Factory production control (FPC) . 12
6.3.1 General . 12
6.3.2 Requirements . 13
6.3.3 Product specific requirements . 16
6.3.4 Initial inspection of factory and of FPC . 16
6.3.5 Continuous surveillance of FPC . 17
6.3.6 Procedure for modifications . 17
6.4 Inspection of a consignment of finished products . 17
7 Test methods . 17
7.1 General . 17
7.2 Dimensional tests . 17
7.2.1 Preparation of specimen . 17
7.2.2 Apparatus . 18
7.2.3 Procedure . 18
7.2.4 Expression and interpretation of results . 18
7.3 Tests for physical performance and characteristics . 18
7.3.1 Apparent density . 18
7.3.2 Mechanical characteristics: Breaking load test . 19
7.3.3 Water impermeability . 21
7.3.4 Warm water . 22
7.3.5 Soak-dry . 22
7.4 Tests for climatic performance. 24
7.4.1 Freeze-thaw . 24
7.4.2 Heat-rain . 25
7.5 Test for fire performance . 26
7.5.1 Test for external fire performance . 26
7.5.2 Test for reaction to fire . 27
8 Marking, labelling and packaging . 34
Annex A (normative) Consignment inspection sampling . 35
Annex B (normative) Statistical method for determining the corresponding wet values or
revised dry specifications for the bending moment when carrying out the dry
method of test for quality control purposes . 36
B.1 Procedure . 36
B.2 Determination of the correlation between the results of testing wet and dry
specimens . 36
B.3 Determination of the regression line . 37
B.4 Determination of a value for wet testing from an obtained value for dry testing . 37
B.5 Determination of the minimum value specified for dry testing x corresponding to
std
the minimum value specified for wet testing in this standard y . 38
std
Annex C (informative) Examples . 40
C.1 Examples of dimension h . 40
C.2 Examples of fibre-cement slates installed showing lines of fixing . 42
Annex D (normative) Requirements of Decision 2001/671/EC regarding the external fire
performance of roof coverings expressed following the classes defined in EN 13501-
5 . 43
Annex ZA (informative) #Relationship of this European Standard with Regulation [EU] No.
305/2011 . 45
ZA.1 Scope and relevant characteristics . 45
ZA.2 System of Assessment and Verification of Constancy of Performance [AVCP] . 46
ZA.3 Assignment of AVCP tasks . 46
Bibliography . 49
European foreword
This document (EN 492:2012+A2:2018) has been prepared by Technical Committee CEN/TC 128 “Roof
covering products for discontinuous laying and products for wall cladding”, the secretariat of which is
held by NBN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2018, and conflicting national standards shall
be withdrawn at the latest by January 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document includes Amendment 1, approved by CEN on 24 November 2015 and Amendment 2,
approved by CEN on 9 November 2017.
This document supersedes #EN 492:2012+A1:2016$.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !"
and #$.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
For relationship with !EU Regulation No 305/2011", see informative Annex ZA, which is an
integral part of this document.
!In comparison with EN 492:2004, the following sections in EN 492:2012 had been changed or
added:" Clause 2, 3.6, 3.7, 5.1.1, 5.3.3, 5.5.3, 6.3.2, 6.4, 7.3.4.4, 7.3.5.4, 7.5.1.2, 7.5.2.2, Annex A,
Annex D.
Annex ZB concerning the EC Directive 76/769/EEC !had been deleted".
A distinction !had been made" between product appraisal (type tests) and routine quality control
requirements (acceptance tests).
The performance of a roof or another building part constructed with these products depends not only
on the properties of the product as required by this standard, but also on the design, construction and
installation of the components as a whole in relation to the environment and conditions of use.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This European Standard specifies the technical requirements and establishes methods of control and
test as well as acceptance conditions for fibre-cement slates and their fibre-cement fittings for one or
more of the following uses:
— roofing;
— internal wall finishes;
— external wall and ceiling finishes.
This European Standard applies to fibre-cement slates with a height dimension h (see Clause 4) not
exceeding 850 mm for overlapping assembly. For the purpose of this European Standard, fibre-cement
slates have been classified according to their bending moment.
This European Standard covers fibre-cement slates reinforced with fibres of different types as specified
in 5.1.1.
This European Standard does not include calculations with regard to works, design requirements,
installation techniques, wind uplift or rain proofing of the installed products.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common cements
CEN/TS 1187:2012, Test methods for external fire exposure to roofs
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification
using test data from reaction to fire tests
EN 13501-5, Fire classification of construction products and building elements — Part 5: Classification
using data from external fire exposure to roofs tests
EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to
the thermal attack by a single burning item
EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific
value) (ISO 1716)
ISO 2602, Statistical interpretation of test results — Estimation of the mean — Confidence interval
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3951-1, Sampling procedures for inspection by variables — Part 1: Specification for single sampling
plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic
and a single AQL
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
acceptance test
test to establish whether a batch of products conforms to a specification and which is performed on
samples drawn either from continuous production or from a consignment
Note 1 to entry: Test methods and specification limit values are specified in this standard. Sampling levels and
acceptance criteria are given in 6.3.2.
3.2
type test
test carried out to demonstrate conformity with the requirements of this standard or for the approval of
a new product and/or when a fundamental change is made in formulation and/or #manufacturing
process$, the effects of which cannot be predicted on the basis of previous experience
Note 1 to entry: The test is performed on the product as delivered, but is not required for each production
batch.
3.3
acceptable quality level (AQL)
quality level which in a sampling plan corresponds to a specified, relatively high probability of
acceptance
Note 1 to entry: It is the maximum percent defective (or maximum number of defects per 100 units) that for
purposes of sampling inspection can be considered satisfactory as a process average.
Note 2 to entry: A sampling scheme with an AQL of 4 % means that batches containing up to 4 % defective items
have a high probability of acceptance.
3.4
as delivered
same condition as the producer intends to supply the product after completing all aspects of the process
including maturing and, when appropriate, painting
3.5
upper face
face normally exposed to the weather
3.6
under face
reverse of upper face
3.7
NT
fibre-cement slates and fittings of type NT cover products made using a non-asbestos technology
3.8
ambient laboratory conditions
laboratory conditions which are a temperature of (23 ± 5) °C and a relative humidity of (50 ± 20) %
4 Symbols and abbreviations
b dimension of the specimen (length or width) measured parallel to the test machine supports in
millimetres
one of the coefficients of the regression line (Annex B)
d apparent density of the fibre-cement slate in grams per cubic centimetre
e thickness of the fibre-cement slate in millimetres
F load at rupture in newtons
h dimension of the fibre-cement slate measured perpendicular to the line of fixing which is at or
nearest to the horizontal plane of the roof (see Annex C, Figures C.1 and C.2), in millimetres
l span between the centres of the test machine supports in the bending moment test in
s
millimetres
m mass of the specimen after drying in grams
M bending moment at rupture in newton metres per metre
M th
fi bending moment (average of both directions) at rupture of the specimen from the i pair tested
after the type test (second lot) in newton metres per metre
M th
fci bending moment (average of both directions) at rupture of the specimen from the i pair tested
for reference in the type test (first lot) in newton metres per metre
R average ratio of the bending moments at rupture before and after the type test
R th
i individual ratio of the bending moments at rupture of the i pair of specimens before and after
a type test
R lower estimate of the mean of the ratios at 95 % confidence level of the bending moments at
L
rupture before and after the type test
s standard deviation of the values in the appropriate calculation
V volume of the specimen in cubic centimetres
x actual result obtained when dry testing
o
x minimum value to be used as the specification for the dry method of test. This value is calculated
std
at the 97,5 % lower confidence level from the value y specified for the wet method of test in
std
this document
y value calculated from the value obtained from a specimen tested dry, which is the estimate at the
o
97,5 % lower confidence level of the value expected from a specimen tested wet
y minimum value specified in the standard for wet testing.
std
5 Product requirements
5.1 General
5.1.1 Composition
Fibre-cement slates and fittings shall consist essentially of cement or a calcium silicate formed by
chemical reaction of a siliceous and a calcareous material, reinforced by fibres. The cement shall comply
with EN 197-1 or with technical specifications relevant in the country of use.
This European Standard covers fibre-reinforced cement slates and fittings of type NT.
The reinforcing fibres shall take one or more of the following forms:
— discrete elements randomly dispersed,
— continuous strands or tapes,
— nets or webs.
Process aids, fillers and pigments which are compatible with the composite may be added.
5.1.2 Appearance and finish
The exposed face of the fibre-cement slates may be with or without texture. The fibre-cement slates
may be coloured or left in their natural colour. The fibre-cement slates may also receive adherent
coloured or uncoloured coatings on their surface.
The fibre-cement slates may be supplied with holes for fixing.
On exposure, the surface and/or its coating will be affected by weathering which may vary with site
location, aspect, pitch of roof and duration of exposure. Any deterioration in this respect shall not
detract from the minimum mechanical and physical characteristics as specified in this document or
from the function of the fibre-cement slate as a durable element.
The fittings shall have a general appearance and finish compatible with the fibre-cement slates with
which they are to be used. They may be supplied with holes for fixing.
5.2 Dimensions and tolerance
5.2.1 General
The manufacturer shall specify the shapes, sizes and configuration of edges.
NOTE See 5.6 for designation and information.
Fittings shall have nominal dimensions and shapes determined by the manufacturer and appropriate to
the corresponding fibre-cement slates.
5.2.2 Thicknesses
The actual fibre-cement slate thickness determined in accordance with 7.2 shall be not less than that
shown in Table 1.
The nominal thickness shall be specified by the manufacturer.
The nominal thickness of the fittings shall be not less than the corresponding nominal thickness of the
fibre-cement slates with which the fittings are to be used.
5.2.3 Tolerances on nominal dimensions
The maximum dimensional variation when measured as specified in 7.2 shall be as follows:
— Length and width: ± 3 mm;
+25
— Thickness:
% of the nominal value.
−10
For fittings that replace fibre-cement slates (e.g. ventilation fibre-cement slates) the tolerances shall be
the same as those on the fibre-cement slates.
For other fittings (e.g. ridges) the tolerances shall be specified by the manufacturer.
5.3 Physical requirements and characteristics for fibre-cement slates
5.3.1 General
Mechanical and material properties are determined on products as delivered, wherever practicable. The
results shall be identified as applying to coated or uncoated material.
NOTE See 6.3 for statistical interpretation.
5.3.2 Apparent density
The manufacturer’s literature shall specify the minimum apparent density of the fibre-cement slates.
The fibre-cement slates shall have an apparent density equal to or greater than that specified by the
manufacturer when tested in accordance with 7.3.1.
5.3.3 Mechanical characteristics
When tested in accordance with 7.3.2, the fibre-cement slates shall have a minimum average bending
moment per metre width in newton metres per metre as specified in Table 1.
The minimum bending moment at rupture in the weaker direction shall be not less than 60 % of the
values specified in Table 1 for the average in both directions.
Table 1 — Minimum bending moment per metre and minimum thickness
Minimum bending moment,
Minimum
Height h
a
thickness e
average of the two directions
(mm)
(mm)
(Nm/m)
h ≤ 350 2,8 30
350 < h ≤ 450 3,0 40
450 < h ≤ 600 3,5 45
600
a
e is the arithmetic mean of four measurements (according to 7.2.4).
5.3.4 Water impermeability
When tested in accordance with 7.3.3, traces of moisture may appear on the under face of the fibre-
cement slate, but in no instance shall there be any formation of drops of water.
5.4 Durability requirements
5.4.1 General
Mechanical and material properties are normally determined for as delivered products. The results
shall be identified as applying to coated or uncoated material. Performance of the coating in the tests
specified in 5.4.2 and 5.4.3 shall not be considered in the assessment of the product.
5.4.2 Freeze-thaw
When tested in accordance with 7.4.1 after 100 freeze-thaw cycles, the ratio R as defined in 7.4.1.4
L
shall be not less than 0,75.
5.4.3 Heat-rain
When tested in accordance with 7.4.2 after 50 heat-rain cycles, any visible cracks, delamination or other
defects in the fibre-cement slates shall not be of such degree as to affect their performance in use.
Water tightness is assessed according to 5.3.4.
Warping and bowing are visually assessed.
5.4.4 Warm water
When tested in accordance with 7.3.4, after 56 days at 60 °C, the ratio R as defined in 7.3.4.4 shall be
L
not less than 0,75.
5.4.5 Soak-dry
When tested in accordance with 7.3.5, after 50 soak-dry cycles, the ratio R as defined in 7.3.5.4 shall be
L
not less than 0,75.
5.5 Fire and safety
5.5.1 External fire performance
When subject to regulatory requirements, the external fire performance of the slates shall be declared
in accordance with 7.5.1.
5.5.2 Reaction to fire
When subject to regulatory requirements, the reaction to fire of the slates or fittings shall be declared in
accordance with 7.5.2.
5.5.3 Release of 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/."
5.6 Product information
The designation of the fibre-cement slate shall include at least the following:
— type of product NT (see 5.1.1);
— name of the fibre-cement slate;
— height (h), size and shape.
The manufacturer shall include the following in his literature:
a) designation of the fibre-cement slate as above;
b) nominal values for:
1) thickness;
2) length and width.
c) minimum apparent density;
d) information relevant to the handling and installation.
6 !Assessment and verification of constancy of performance — AVCP
6.1 General
The compliance of fibre-cement slates and fittings with the requirements of this standard and with the
performances declared by the manufacturer in the DoP shall be demonstrated by:
— determination of the product type;
— factory production control by the manufacturer, including product assessment.
The manufacturer shall always retain the overall control and shall have the necessary means to take
responsibility for the conformity of the product with its declared performance(s).
6.2 Type testing
6.2.1 General
Type tests shall be carried out on products as delivered. If several formats or sizes of the same nominal
thickness are being produced from the same composition and by the same #manufacturing
process$, type tests only need to be carried out on one size of each nominal thickness.
All characteristics listed in Table 2 shall be subject to product type determination, except reaction to
fire Class A1 without testing and external fire performance "deemed to satisfy" products.
Product type determination shall be performed to demonstrate conformity to this standard. Tests
previously performed in accordance with the provisions of this standard (same product, same
characteristic(s), test method, sampling procedure, same attestation of conformity, etc.) may be taken
into account. In addition, product type determination shall be performed for the approval of a new
product, or a fundamental change in formulation or #manufacturing process$, the effects of which
cannot be predicted on the basis of previous experience.
Whenever a change occurs in the fibre-cement slate design, the raw material or supplier of components
or the #manufacturing process$, which would change significantly one or more of the
characteristics, the type test shall be performed for the appropriate characteristic(s).
6.2.2 Test samples, testing and compliance criteria
The number of samples of fibre-cement slates to be tested / assessed shall be in accordance with
Table 2 of this standard.
Table 2 — Number of slates and fittings and compliance criteria
Assessment Number of Compliance
Characteristic Requirement
method samples criteria
Inspection S3 as 5.3.3 Table 1
Mechanical resistance (slates) 5.3.3 7.3.2
per ISO 2859-1 apply 4 % AQL
Density (slates) 5.3.2 7.3.1 7.3.1 5.3.2 and 7.3.1
External fire performance
5.5.1 7.5.1 7.5.1 7.5.1
(slates)
Reaction to fire (slates and
5.5.2 7.5.2 7.5.2 7.5.2
fittings)
Water impermeability (slates) 5.3.4 7.3.3 3 test slates 5.3.4
Dimensional variations (slates Inspection S3 as
5.2 7.2 5.2.2 and 5.2.3
and fittings) per ISO 2859-1
Release of dangerous substances
5.5.3 5.5.3 - 5.5.3
(slates and fittings)
Warm water (slates) 5.4.4 7.3.4 10 samples 5.4.4 and 7.3.4.4
Soak/Dry (slates) 5.4.5 7.3.5 10 samples 5.4.5 and 7.3.5.4
Freeze-Thaw (slates) 5.4.2 7.4.1 10 samples 5.4.2 and 7.4.1.4
Heat-Rain (slates) 5.4.3 7.4.2 11 samples 5.4.3 and 7.4.2.4
6.2.3 Test reports
The results of the determination of the product type shall be documented in the test reports. All test
reports shall be retained by the manufacturer for at least 10 years after the last date of production of
the fibre-cement slates and fittings to which they relate.
6.3 Factory production control (FPC)
6.3.1 General
The manufacturer shall establish, document and maintain a FPC system to ensure that the products
placed on the market comply with the declared performance of the essential characteristics.
The FPC system shall consist of procedures, regular inspections and tests and/or assessments and the
use of the results to control raw and other incoming materials or components, equipment, the
#manufacturing process$ and the product.
All the elements, requirements and provisions adopted by the manufacturer shall be documented in a
systematic manner in the form of written policies and procedures.
This factory production control system documentation shall ensure a common understanding of the
evaluation of the constancy of performance and enable the achievement of the required product
performances and the effective operation of the production control system to be checked. Factory
production control therefore brings together operational techniques and all measures allowing
maintenance and control of the compliance of the product with the declared performances of the
essential characteristics.
6.3.2 Requirements
6.3.2.1 General
The manufacturer is responsible for organizing the effective implementation of the FPC system in line
with the content of this product standard. Tasks and responsibilities in the production control
organization shall be documented and this documentation shall be kept up-to-date.
The responsibility, authority and the relationship between personnel that manages, performs or verifies
work affecting product constancy, shall be defined. This applies in particular to personnel that need to
initiate actions preventing product non-constancies from occurring, actions in case of non-constancies
and to identify and register product constancy problems.
Personnel performing work affecting the constancy of performance of the product shall be competent
on the basis of appropriate education, training, skills and experience for which records shall be
maintained.
In each factory the manufacturer may delegate the action to a person having the necessary authority to:
— identify procedures to demonstrate constancy of performance of the product at appropriate stages;
— identify and record any instance of non-constancy;
— identify procedures to correct instances of non-constancy.
The manufacturer shall draw up and keep up-to-date documents defining the factory production
control. The manufacturer's documentation and procedures should be appropriate to the product and
manufacturing process. The FPC system should achieve an appropriate level of confidence in the
constancy of performance of the product. This involves:
a) the preparation of documented procedures and instructions relating to factory production control
operations, in accordance with the requirements of the technical specification to which reference is
made;
b) the effective implementation of these procedures and instructions;
c) the recording of these operations and their results;
d) the use of these results to correct any deviations, repair the effects of such deviations, treat any
resulting instances of non-conformity and, if necessary, revise the FPC to rectify the cause of non-
constancy of performance.
NOTE Manufacturers having an FPC system, which complies with EN ISO 9001 and which addresses the
provisions of the present European Standard are considered as satisfying the FPC requirements of the
Regulation (EU) No 305/2011.
6.3.2.2 Equipment
6.3.2.2.1 Testing
All weighing, measuring and testing equipment shall be calibrated and regularly inspected according to
documented procedures, frequencies and criteria.
6.3.2.2.2 Manufacturing
All equipment used in the manufacturing process shall be regularly inspected and maintained to ensure
use, wear or failure does not cause inconsistency in the manufacturing process. Inspections and
maintenance shall be carried out and recorded in accordance with the manufacturer’s written
procedures and the records retained for the period defined in the manufacturer's FPC procedures.
6.3.2.3 Raw materials and components
The specifications of all incoming raw materials and components shall be documented, as shall the
inspection scheme for ensuring their compliance. In case supplied kit components are used, the
constancy of performance system of the component shall be that given in the appropriate harmonized
technical specification for that component.
6.3.2.4 Traceability and marking
Fibre-cement slates and fittings shall be identifiable and traceable with regard to their production
origin. The manufacturer shall have written procedures ensuring that processes related to affixing
traceability codes and/or markings are inspected regularly.
6.3.2.5 Controls during manufacturing process
The manufacturer shall plan and carry out production under controlled conditions.
6.3.2.6 Product testing and evaluation
The manufacturer shall establish procedures to ensure that the stated values of the characteristics he
declares are maintained. The characteristics, and the means of control, for fibre-cement slates and
fittings are detailed in Table 3.
Table 3 — Minimum sampling schemes
Fibre-cement slates
ISO 2859-1
Length Inspection by attribute
Width Double sampling
Thickness AQL 4 %
Level S
ISO 3951-1
Apparent density Inspection by variable; method s or σ
Bending moment AQL 4 %
Level S
Fittings
Length
The same as for the dimensional
Width
characteristics of fibre-cement slates
Thickness
The specification of acceptance tests apply to the product as delivered, but may be carried out at an
earlier stage of maturity.
Sampling from continuous production testing:
— on the base sheet prior to coating,
— in conditions other than in Table 4,
is acceptable provided that it has been statistically established (see Annex B) that compliance with the
requirements given in Table 1 is ensured.
Acceptance tests can also be used to confirm that a batch of slates or fittings conforms with the
standard, e.g. in conjunction with type tests or for receiving inspection.
The tests include the:
— measurement of dimensions – length, width and thickness – (methods specified in 7.2);
— measurement of apparent density (slates only, method specified in 7.3.1);
— measurement of mechanical characteristics–bending strength–(slates only, method specified in
7.3.2).
Each limit of specification, for the characteristics in Table 3, shall be subject to an AQL of 4 %. The
sampling schemes provided in ISO 2859-1 and ISO 3951-1, with an AQL of 4 % and inspection
levels S1 and S respectively ensure that for large batches approximately 95 % of the items fulfill
3 ,
the requirements.
6.3.2.7 Non-complying products
The manufacturer shall have written procedures which specify how non-complying products shall be
dealt with. Any such events shall be recorded as they occur and these records shall be kept for the
period defined in the manufacturer’s written procedures.
Where the product fails to satisfy the acceptance criteria, the provisions for non-complying products
shall apply, the necessary corrective action(s) shall immediately be taken and the products or batches
not complying shall be isolated and properly identified.
Once the fault has been corrected, the test or verification in question shall be repeated.
The results of controls and tests shall be properly recorded. The product description, date of
manufacture, test method adopted, test results and acceptance criteria shall be entered in the records
under the signature of the person responsible for the control/test.
With regard to any control result not meeting the requirements of this European Standard, the
corrective measures taken to rectify the situation (e.g. a further test carried out, modification of
manufacturing process, disposal, recycle or correction of product) shall be indicated in the records.
6.3.2.8 Corrective action
The manufacturer shall have documented procedures that instigate action to eliminate the cause of
non-conformities in order to prevent recurrence.
6.3.2.9 Handling, storage and packaging
The manufacturer shall have procedures providing methods of product handl
...
표준 EN 492:2012+A2:2018은 섬유 시멘트 슬레이트 및 관련 피팅에 대한 제품 사양 및 시험 방법을 규정하는 유럽 표준으로, 케이스별 다양한 사용 방식을 위해 필요한 기술적 요구사항과 제어 및 시험 방법, 수용 조건을 설정합니다. 이 표준은 주로 지붕, 내부 벽 마감재 및 외부 벽과 천장 마감재에 적용됩니다. EN 492 표준의 주요 강점은 섬유 시멘트 슬레이트의 높이 치수가 850mm를 초과하지 않는 경우에 대해 명확한 규정을 제공한다는 점입니다. 또한, 슬레이트의 휨 모멘트에 따라 분류함으로써 제품의 기계적 성질에 대한 신뢰성을 보장하고 있습니다. 이는 사용자에게 예측 가능한 성능을 제공하며, 다양한 환경에서의 활용 가능성을 높입니다. 또한, 이 표준에서 다루는 섬유 시멘트 슬레이트는 5.1.1에서 명시된 다양한 유형의 섬유로 보강된 제품을 포함함으로써, 기술 발전에 부응하는 혁신적인 솔루션을 제공합니다. 이러한 점에서 EN 492 표준은 건축 및 건설 분야에서 섬유 시멘트 재료의 활용도를 높이고, 품질 관리를 위한 강력한 기준을 제시합니다. 다만, 이 표준은 설치 기술, 바람의 영향, 비가림 기능에 대한 계산을 포함하지 않으므로, 사용자는 이러한 요소를 별도로 고려해야 합니다. 그럼에도 불구하고 EN 492 표준은 섬유 시멘트 슬레이트의 품질과 안전을 보장하는 중요한 지침을 제공하며, 건축물의 내구성과 성능을 향상시키는 데에도 기여할 것입니다.
The EN 492:2012+A2:2018 standard provides a comprehensive framework for the specification and testing of fibre-cement slates and fittings, catering to a wide range of applications such as roofing, internal wall finishes, and external wall and ceiling finishes. This European Standard is crucial for ensuring that products made from fibre-cement meet fundamental quality and performance criteria. One of the prominent strengths of this standard is its clear delineation of technical requirements and the establishment of rigorous methods for control and testing, which guarantees the reliability and durability of fibre-cement products. By specifying acceptance conditions, EN 492:2012+A2:2018 fosters consistency in quality across different manufacturers, addressing a critical need in the construction and building materials industry. The standard’s scope effectively covers fibre-cement slates with a height dimension not exceeding 850 mm, thus accommodating a significant range of products suitable for overlapping assembly. Furthermore, the classification of fibre-cement slates according to their bending moment is a valuable feature, as it aids in the selection process for end-users based on performance characteristics and intended applications. Additionally, the inclusion of various fibre reinforcements in the specification (as detailed in section 5.1.1) further enhances the versatility of this standard by allowing for innovations in materials and composite solutions that improve the resilience of fibre-cement slates. However, it's important to note that the document intentionally does not cover elements such as calculation regarding works, design requirements, installation techniques, wind uplift, or rainproofing. This focused approach allows stakeholders to concentrate on the precise aspects of product specification and testing, ensuring clarity and preventing potential misunderstandings regarding the scope of the standard. Overall, the EN 492:2012+A2:2018 standard stands out for its thorough approach to regulating fibre-cement slates and fittings, providing essential guidelines that enhance safety, performance, and quality in construction practices, making it a significant reference for industry professionals.
EN 492:2012+A2:2018は、繊維セメントスレートおよびその付属品に関する非常に重要な標準を示しています。この標準は、屋根、内部壁仕上げ、外部壁および天井仕上げという多様な用途に対して、技術的要件を明確にし、試験および制御の方法を確立しています。この包括的なアプローチにより、製品の品質が確保され、市場における信頼性を向上させることができます。 この標準の強みとして、850mm以下の重ね組み用に特化したスレートの詳細な分類が挙げられます。これにより、ユーザーが必要な製品を容易に特定でき、その特性に基づいて選択することが可能になります。さらに、この標準は、異なる種類の繊維で強化された繊維セメントスレートをカバーしており、素材の多様性を活かした製品開発が行えます。 EN 492:2012+A2:2018の関連性は非常に高く、特に建設業において、持続可能な建材の需要が高まる中で、繊維セメントスレートを利用したさまざまなプロジェクトにおいてその重要性が増しています。この標準が定める試験方法と受入条件により、顧客は納品された製品が期待通りの性能を発揮することを確認できるため、信頼性と安全性の面での基準が提供されています。 ただし、設計要件、設置技術、風の持ち上げ、雨漏り防止に関する計算はこの標準には含まれていないため、他の関連文献や基準と組み合わせて利用する必要があります。しかし、この点を除けば、EN 492:2012+A2:2018は、繊維セメントスレートおよびその付属品に対する包括的かつ明確な基準を提供する、非常に有用な文書であるといえます。










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