SIST EN 14933:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Thermal insulation and light weight fill products for civil engineering applications — Factory made products of expanded polystyrene (EPS) — SpecificationToplotnoizolacijski in lahki polnilni proizvodi za inženirske objekte - Proizvodi iz ekstrudiranega polistirena (XPS) - SpecifikacijaProduits isolants thermiques et de remblayage pour les applications de génie civil — Produits manufacturés en polystyrene expansé (EPS) — SpécificationsWärmedämmung und leichte Füllprodukte für Anwendungen im Tiefbau — Werkmäßig hergestellte Produkte aus expandiertem Polystyrol (EPS) — SpezifikationTa slovenski standard je istoveten z:EN 14933:2007SIST EN 14933:2007en,de91.100.60Thermal and sound insulating materials83.100Penjeni polimeriCellular materialsICS:SLOVENSKI
STANDARDSIST EN 14933:200701-december-2007







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14933September 2007ICS 83.100; 93.010 English VersionThermal insulation and light weight fill products for civilengineering applications - Factory made products of expandedpolystyrene (EPS) - SpecificationProduits isolants thermiques et de remblayage pour lesapplications de génie civil - Produits manufacturés enPolystyrène expansé (EPS) - SpécificationsWärmedämmung und leichte Füllprodukte fürAnwendungen im Tiefbau - Werkmäßig hergestellteProdukte aus expandiertem Polystyrol (EPS) - SpezifikationThis European Standard was approved by CEN on 13 July 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14933:2007: E



EN 14933:2007 (E) 2 Contents Page Foreword.5 1 Scope.6 2 Normative references.6 3 Terms, definitions, symbols, units and abbreviated terms.7 3.1 Terms and definitions.7 3.2 Symbols, units and abbreviated terms.8 4 Requirements.10 4.1 General.10 4.2 For all applications.11 4.3 For specific applications.13 5 Test methods.20 5.1 Sampling.20 5.2 Conditioning.20 5.3 Testing.20 6 Designation code.22 7 Evaluation of conformity.23 8 Marking and labelling.23 Annex A (normative)
Determination of the declared values of thermal resistance and thermal conductivity.25 A.1 Introduction.25 A.2 Input data.25 A.3 Declared values.25 A.3.1 General.25 A.3.2 Case where thermal resistance and thermal conductivity are declared.25 A.3.3 Case where thermal resistance alone is declared.26 Annex B (normative)
Factory production control.27 B.1 Testing frequencies.27 B.2 Indirect testing.31 B.2.1 General.31 B.2.2 Compressive stress at 10 % deformation.31 B.2.3 Thermal conductivity.32 Annex C (normative)
Product classification.33 Annex D (normative)
Determination of behaviour under cyclic square-wave load.34 D.1 Scope.34 D.2 Definitions.34 D.3 Principle.35 D.4 Testing equipment.35 D.4.1 Cutting tool.35 D.4.2 Length measuring equipment.35 D.4.3 Steel plate.35 D.4.4 Measuring gauges.35 D.4.5 Apparatus.35 D.5 Test specimens.36 D.5.1 Dimensions of test specimens.36 D.5.2 Number of test specimens.36 D.5.3 Conditioning of test specimens.36



EN 14933:2007 (E) 3 D.6 Procedure.36 D.6.1 Test conditions.36 D.6.2 Test procedure.36 D.7 Calculation and expression of results.38 D.8 Accuracy of measurement.39 D.9 Test report.39 Annex E (informative)
Additional properties.40 E.1 General.40 E.2 Compressive modulus of elasticity.40 E.3 Determination of shear strength.40 E.4 Long-term compressive behaviour.41 E.5 Water vapour diffusion resistance factor.42 E.6 Additional information.42 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 89/106/EEC, EU Construction Products Directive.43 ZA.1 Scope and relevant characteristics.43 ZA.2 Procedures for attestation of conformity of expanded polystyrene products.45 ZA.2.1 Systems of attestation of conformity.45 ZA.2.2 EC certificate and declaration of conformity.48 ZA.3 CE Marking and labelling.50 Bibliography.52
Figures Figure B.1 — Relationship between compressive stress at 10 % deformation and apparent density for indirect testing; 1 – αααα = 0,90; n = 495.31 Figure B.2 — Relationship between declared thermal conductivity (at 50 mm reference thickness) and apparent density; 1 – αααα = 0,90; n = 3 873.32 Figure D.1 — Required load cycle during the fatigue test.36 Figure D.2 — Dimensions of the test specimen.37 Figure D.3 — Test set-up.38 Figure ZA.1 — Example CE marking information.51
Tables Table 1 — Classes of dimensional tolerances.12 Table 2 — Levels for compressive stress at 10 % deformation.13 Table 3 — Levels of dimensional stability under specified temperature and humidity conditions.14 Table 4 — Levels of deformation under specified compressive load and temperature conditions.14 Table 5 — Levels for compressive stress at 2 % deformation.15 Table 6 — Levels for compressive stress at 5 % deformation.15 Table 7 — Levels of bending strength.17



EN 14933:2007 (E) 4 Table 8 — Levels for long term water absorption by total immersion.18 Table 9 — Levels for long term water absorption by diffusion.19 Table 10 — Levels for freeze-thaw resistance.19 Table 11 — Test methods, test specimens and conditions.20 Table A.1 — Values for k for one sided 90 % tolerance interval with a confidence level of 90 %.26 Table B.1 — Minimum product testing frequencies.27 Table B.2 — Minimum product testing frequencies for the reaction to fire characteristics.29 Table C.1 — Classification of EPS products.33 Table E.1 — Correlation between bending strength and shear strength.40 Table E.2 — Test methods, test specimens, conditions and minimum testing frequencies.41 Table E.3 — Tabulated values of water vapour diffusion resistance index and water vapour permeability.42 Table ZA.1 — Relevant clauses.44 Table ZA.2 — System(s) of attestation of conformity.46 Table ZA.2.1 — Assignment of evaluation of conformity tasks for products under system 1.47 Table ZA.2.2 — Assignment of evaluation of conformity tasks for products under system 3 and 3 (with 4 for RtF).48



EN 14933:2007 (E) 5 Foreword This document (EN 14933:2007) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating materials and products”, the secretariat of which is held by DIN. 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 March 2008, and conflicting national standards shall be withdrawn at the latest by March 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. 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. This European Standard is one of a series of standards for products used for insulation in buildings, insulation of building equipment and industrial installations and in civil engineering applications. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.



EN 14933:2007 (E) 6
1 Scope This European Standard specifies the requirements for factory made products of expanded polystyrene which are used for frost insulation of roads, railways, trafficked areas, light weight fill for reduction of horizontal and vertical earth pressure and other civil engineering applications. The products are manufactured in the form of boards or blocks. The standard also covers specially cut shaped boards or blocks. The standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling. The standard does not specify the required class or level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The classes and levels required for a given application are to be found in regulations or non-conflicting standards. For applications where thermal resistance is required, products with a declared thermal resistance lower than 0,25 m²⋅K/W or a declared thermal conductivity greater than 0,060 W/(m⋅K) are not covered by this standard. This standard does not cover in situ insulation products and products intended to be used for the insulation of buildings, of building equipment and industrial installations or products intended for acoustic insulation. 2 Normative references The following referenced documents are indispensable for the application 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 822, Thermal insulating products for building applications — Determination of length and width EN 823, Thermal insulating products for building applications — Determination of thickness EN 824, Thermal insulating products for building applications — Determination of squareness EN 825, Thermal insulating products for building applications — Determination of flatness EN 826, Thermal insulating products for building applications — Determination of compression behaviour EN 1602, Thermal insulating products for building applications — Determination of the apparent density EN 1604, Thermal insulating products for building applications — Determination of dimensional stability under specified temperature and humidity conditions EN 1605, Thermal insulating products for building applications — Determination of deformation under specified compressive load and temperature conditions EN 1606, Thermal insulating products for building applications — Determination of compressive creep EN 12085, Thermal insulating products for building applications - Determination of linear dimensions of test specimens EN 12086, Thermal insulating products for building applications — Determination of water vapour trans-mission properties



EN 14933:2007 (E) 7 EN 12087, Thermal insulating products for building applications — Determination of long-term water absorption by immersion EN 12088, Thermal insulating products for building applications — Determination of long-term water absorption by diffusion EN 12089, Thermal insulating products for building applications — Determination of bending behaviour EN 12091, Thermal insulating products for building applications — Determination of freeze-thaw resistance EN 12667, Thermal performance of building materials and products — Determination of thermal resistance by means of guarded hot plate and heat flow meter methods — Products of high and medium thermal resistance EN 12939, Thermal performance of building materials and products — Determination of thermal resistance by means of guarded hot plate and heat flow meter methods — Thick products of high and medium thermal resistance EN 13172:2001, Thermal insulating products — Evaluation of conformity EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using test data from reaction to fire tests EN 13793, Thermal insulating products for building applications — Determination of behaviour under cyclic loading EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to thermal attack by a single burning item EN ISO 1182, Reaction to fire tests for building products — Non combustibility test (ISO 1182:2002) EN ISO 1716, Reaction to fire tests for building products — Determination of the heat of combustion (ISO 1716:2002) EN ISO 9229:2007, Thermal insulation — Vocabulary (ISO 9229:2007) EN ISO 11925-2, Reaction to fire tests — Ignitability of building products subjected to direct impingement of flame — Part 2: Single-flame source test (ISO 11925-2:2002) ISO 12491, Statistical methods for quality control of building materials and components 3 Terms, definitions, symbols, units and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 Terms and definitions as given in EN ISO 9229:2007 3.1.1.1 expanded polystyrene (EPS) rigid cellular plastic material, manufactured by moulding beads of expandable polystyrene or one of its copolymers, with an air filled closed cellular structure



EN 14933:2007 (E) 8 3.1.1.2 expanded polystyrene block rigid insulation product or material generally of rectangular cross section and with a thickness not significantly smaller than the width. Blocks are supplied trimmed or untrimmed 3.1.1.3 expanded polystyrene board rigid insulation product (cut, moulded, or continuously foamed) of rectangular shape and cross section in which the thickness is significantly smaller than the other dimensions. Boards may be of uniform thickness or tapered. The board edges may be of various sorts (e.g., square, half lapped, tongue and groove) 3.1.1.4 preformed ware insulation shapes formed by cutting or grinding from blocks or boards or by shape moulding 3.1.2 Additional definitions 3.1.2.1 level given value which is the upper or lower limit of a requirement. The level is given by the declared value of the characteristic concerned 3.1.2.2 class combination of two levels of the same property between which the performance shall fall 3.2 Symbols, units and abbreviated terms Symbols used in this standard: 1 – α is the prediction interval –b is the width mmd is the thickness mmδ is the water vapour permeability mg/(m·h·Pa)Di is the relative compression after i number of cycles %DN is the nominal thickness of a product mds is the thickness of the test specimen m∆εb is the relative change in width %∆εd is the relative change in thickness %∆εl is the relative change in length %01 is the deformation after step A according to EN 1605 %02 is the deformation after step B according to EN 1605 %εct is the compressive creep %εt is the total relative thickness reduction %εI,max is the relative maximum deformation %k is a factor related to the number of test results available –



EN 14933:2007 (E) 9 l is the length mmL is the thickness effect parameter –λ90, 90 is the 90 % fractile with a confidence level of 90 % for the thermal conductivity W/(m·K)λD is the declared value of thermal conductivity W/(m·K)λi is one test result of thermal conductivity W/(m·K)λ′i is one test result of thermal conductivity for which the thickness effect is not negligible W/(m·K)λmean is the mean thermal conductivity W/(m·K)λpred is the thermal conductivity with a prediction interval of 90 % W/(m·K)µ is the water vapour diffusion resistance factor –n is the number of test results –ρa is the apparent density kg/m3R90/90 is the 90 % fractile with a confidence level of 90 % for the thermal resistance m2·K/WRD is the declared thermal resistance m2·K/WRi is one test result of thermal resistance m2·K/WR′i is one test result of thermal resistance for which the thickness effect is not negligible m2·K/WRmean is the mean thermal resistance m2·K/WsR is the estimate of the standard deviation of the thermal resistance m2·K/Wsλ is the estimate of the standard deviation of the thermal conductivity W/(m·K)Sb is the deviation from squareness mm/mSmax is the deviation from flatness mmσ10 is the compressive stress at 10 % deformation kPaσ10, mean is the mean compressive stress at 10 % deformation kPaσ10, pred is the predicted compressive stress at 10 % deformation with a prediction interval of 90 % kPaσ5 is the compressive stress at 5 % deformation kPaσ2 is the compressive stress at 2 % deformation kPaσb is the bending strength kPaσc is the compressive stress to determine εt kPaσc is the declared compressive stress kPaτ is the shear strength kPaWdV is the water absorption by diffusion % by volume



EN 14933:2007 (E) 10 Wlt is the long-term water absorption by total immersion % by volumeWv is water absorption by freeze-thaw after water absorption by diffusion % by volume Z is the water vapour resistance m2·h·Pa/mgBS is the symbol of the declared level for bending strength CC(i1,i2/y) σ is the symbol of the declared level for compressive creep CLR(i,z) σi is the symbol of the declared level for resistance to cyclic compressive loading
with sinus load application CLRT(i,z) σi is the symbol of the declared level for resistance to cyclic compressive loading
with square wave load application CS (10) is the symbol of the declared level for compressive stress at 10 % deformation CS (5) is the symbol of the declared level for compressive stress at 5 % deformation CS (2) is the symbol of the declared level for compressive stress at 2 % deformation DLT(i)5 is the symbol of the declared level for dimensional stability under load and temperature at aspecific set of conditions with a maximum of 5 % deformation DS(TH) is the symbol of the declared value for dimensional stability under specified temperature andhumidity FTC
is the symbol of the declared level for freeze thaw resistance L is the symbol of the declared class for length tolerances P is the symbol of the declared class for flatness tolerance S is the symbol of the declared class for squareness tolerance T is the symbol of the declared class for thickness tolerance W is the symbol of the declared class for width tolerance WD(V) is the symbol of the declared level for water absorption by diffusion WL(T) is the symbol of the declared level for water absorption by total immersion Z is the symbol of the declared water vapour resistance value
Abbreviated terms used in this standard: EPS is expanded polystyrene 4 Requirements 4.1 General Product properties shall be assessed in accordance with Clause 5. To comply with this standard, products shall meet the requirements of 4.2 and the requirements of 4.3, as appropriate. NOTE Information on additional properties is given in Annex E.



EN 14933:2007 (E) 11 One test result for a product property is the average of the measured values on the number of test specimens given in Table 11. For mechanical properties no single measured value within the consecutive group used for obtaining the test result, shall be more than 10 % lower than of the limit value defining the level. For non mechanical properties a deviation from the limit value may be permitted and where appropriate these are expressed in the text. 4.2 For all applications 4.2.1 Length and width Length, l, and width, b, shall be determined in accordance with EN 822. No test result shall deviate from the declared values by more than the tolerances given in Table 1 for the declared class. 4.2.2 Thickness Thickness, d, shall be determined in accordance with EN 823. No test result shall deviate from the nominal thickness, dN, by more than the tolerances given in Table 1, for the decla
...

SLOVENSKI OSIST prEN 14933:2004

PREDSTANDARD
julij 2004
Light weight fill and insulation products for civil engineering applications - Factory
made products of expanded polystyrene (EPS) - Specification
ICS 91.100.60 Referenčna številka
OSIST prEN 14933:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD
DRAFT
prEN 14933
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2004
ICS
English version
Light weight fill and insulation products for civil engineering
applications - Factory made products of expanded polystyrene
(EPS) - Specification
Remblai léger et produits isolants pour les applications de Leichtaufschüttungen und Dämmprodukte für
génie civil - Produits manufacturés polystyrène expansé Anwendungen im Tiefbau - Werkmäßig hergestellte
(EPS) - Spécifications Produkte aus expandiertem Polystyrol (EPS) - Spezifikation
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 88.
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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14933:2004: E
worldwide for CEN national Members.

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prEN 14933:2004 (E)
Contents Page
Foreword. 4
1 Scope . 4
2 Normative references . 5
3 Terms, definitions, symbols, units and abbreviated terms . 6
3.1 Terms and definitions. 6
3.2 Symbols, units and abbreviated terms. 7
4 Requirements . 9
4.1 General. 9
4.2 For all applications . 10
4.3 For specific applications. 13
5 Test methods. 18
5.1 Sampling. 18
5.2 Conditioning. 18
5.3 Testing . 18
6 Designation Code. 21
7 Evaluation of conformity. 21
8 Marking and labelling . 22
Annex A (normative) Determination of the declared values of thermal resistance and thermal
conductivity. 23
A.1 Introduction . 23
A.2 Input data. 23
A.3 Declared values. 23
A.3.1 Case where thermal resistance and thermal conductivity are declared. 23
A.3.2 Case where thermal resistance alone is declared. 24
Annex B (normative) Factory production control. 25
B.1 Testing frequencies . 25
B.2 Indirect testing . 29
B.2.1 General. 29
B.2.2 Compressive stress at 10 % deformation . 29
B.2.3 Thermal conductivity. 30
Annex C (normative) Product classification. 31
Annex D (informative) Additional properties. 32
D.1 General. 32
D.2 Long-term compressive behaviour. 32
D.3 Shear behaviour. 32
D.4 Water vapour diffusion resistance factor. 33
D.5 Additional information. 34
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive. 35
ZA.1 Clauses of this European Standard addressing the provisions of the EU Construction
Products Directive . 35
ZA.2 Systems for attestation of conformity . 37
ZA.2.1 General. 37
ZA.2.2 Thermal insulating products for any intended use . 37
ZA.2.3 Thermal insulating products for uses subject to regulations on reaction to fire . 38
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prEN 14933:2004 (E)
ZA.2.4 EC certificate and declaration of conformity.38
ZA.3 CE Marking and labelling.39
Figures
Figure B.1 — Relationship between compressive stress at 10 % deformation and apparent density for
indirect testing; 1 – aa = 0,90; n = 495.29
Figure B.2 — Relationship between declared thermal conductivity (at 50 mm reference thickness) and
apparent density; 1 – aa = 0,90; n = 3 873.30
Tables
Table 1 — Classes of dimensional tolerances.10
Table 2 — Classes of dimensional stability under normal laboratory conditions.11
Table 3 — Levels for compressive stress at 2 % deformation.11
Table 4 — Levels for compressive stress at 5 % deformation.12
Table 5 — Levels for compressive stress at 10 % deformation.12
Table 6 — Levels of dimensional stability under specified temperature and humidity conditions.14
Table 7 — Levels of deformation under specified compressive load and temperature conditions .14
Table 8 — Levels of bending strength.14
Table 9 — Levels for long term water absorption by total immersion.16
Table 10 — Levels for long term water absorption by diffusion.17
Table 11 — Levels for freeze-thaw resistance.17
Table 12 — Load levels for resistance to cyclic loading.18
Table 13 — Test methods, test specimens and conditions .19
Table A.1 — Values for k for one sided 90 % tolerance interval with a confidence level of 90 % .24
Table B.1 — Minimum product testing frequencies.25
Table B.2 — Minimum product testing frequencies for the reaction to fire characteristics.27
Table C.1 — Classification of EPS products.31
Table D.1 — Correlation between bending strength and shear strength .32
Table D.2 — Tabulated values of water vapour diffusion resistance index and water vapour
permeability.33
Table ZA.1 — Relevant clauses.35
Table ZA.2.1 — Systems of attestation of conformity of factory made EPS products for any
intended use.37
Table ZA.2.2 — Systems of attestation of conformity of factory made EPS products for uses
subject to regulations on reaction to fire.38
3

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prEN 14933:2004 (E)
Foreword
This document (prEN 14933:2004) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
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 Directives.
For relationship with EU Directives, see informative Annex ZA, which is an integral part of this document.
This European Standard contains five annexes:
Annex A (normative) Determination of the declared values of thermal conductivity and thermal resistance
Annex B (normative) Factory production control
Annex C (normative) Product classification
Annex D (informative) Additional properties
Annex ZA (informative) Clauses of this European Standard addressing the provision of the EU Construction
Products Directive
This European Standard is one of a series of standards for products used for insulation in buildings, installed
equipment and in civil engineering applications.
1 Scope
This European Standard specifies the requirements for factory made products of expanded polystyrene which
are used in civil engineering applications, such as light weight fill and frost insulation. Other typical
applications are: reduction of lateral earth pressure on retaining walls and bridge abutments, redistribution of
loads on buried pipes (“imperfect ditch”), compressible inclusion on swelling soils, as dampers for reduction of
vibrations, marine floating devices etcetera. The products are manufactured in the form of boards or blocks.
The standard describes product characteristics and includes procedures for testing, evaluation of conformity,
marking and labelling.
Products covered by this standard are also used for thermal insulation of building for which EN 13163 is
applicable and for insulation of building equipment and industrial installations for which prEN 14309 is
applicable.
The standard does not specify the required class or level of a given property to be achieved by a product to
demonstrate fitness for purpose in a particular application. The classes and levels required for a given
application are to be found in regulations or non-conflicting standards.
2
Products with a declared thermal resistance lower than 0,25 m ·K/W or a declared thermal conductivity at
10 °C greater than 0,060 W/(m·K) are not covered by this standard.
This standard does not cover in situ insulation products and products intended to be used for the insulation of
building equipment and industrial installations or products intended for acoustic insulation.
4

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prEN 14933:2004 (E)
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to
this European Standard only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies (including amendments).
EN 822, Thermal insulating products for building applications — Determination of length and width.
EN 823, Thermal insulating products for building applications — Determination of thickness.
EN 824, Thermal insulating products for building applications — Determination of squareness.
EN 825, Thermal insulating products for building applications — Determination of flatness.
EN 826, Thermal insulating products for building applications — Determination of compression behaviour.
EN ISO 1182, Reaction to fire tests for building products — Non combustibility test (ISO 1182:2002).
EN 1602, Thermal insulating products for building applications — Determination of the apparent density.
EN 1603, Thermal insulating products for building applications — Determination of dimensional stability under
constant normal laboratory conditions (23 °C/50 % relative humidity).
EN 1604, Thermal insulating products for building applications — Determination of dimensional stability under
specified temperature and humidity conditions.
EN 1605, Thermal insulating products for building applications — Determination of deformation under
specified compressive load and temperature conditions.
EN 1606, Thermal insulating products for building applications — Determination of compressive creep.
EN ISO 1716, Reaction to fire tests for building products — Determination of the heat of combustion (ISO
1716:2002).
prEN ISO 9229, Thermal insulation — Definitions of terms (ISO/DIS 9229:1997).
EN ISO 11925-2, Reaction to fire tests — Ignitability of building products subjected to direct impingement of
flame — Part 2: Single-flame source test (ISO 11925-2:2002).
EN 12085, Thermal insulating products for building applications — Determination of linear dimensions of test
specimens.
EN 12086, Thermal insulating products for building applications — Determination of water vapour trans-
mission properties.
EN 12087, Thermal insulating products for building applications — Determination of long-term water
absorption by immersion.
EN 12088, Thermal insulating products for building applications — Determination of long-term water
absorption by diffusion.
EN 12089, Thermal insulating products for building applications — Determination of bending behaviour.
EN 12090, Thermal insulating products for building applications — Determination of shear strength.
EN 12091, Thermal insulating products for building applications — Determination of freeze-thaw resistance.
5

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prEN 14933:2004 (E)
EN 12667, Thermal performance of building materials and products — Determination of thermal resistance by
means of guarded hot plate and heat flow meter methods — Products of high and medium thermal resistance.
prEN 12939, Thermal performance of building materials and products — Determination of thermal resistance
by means of guarded hot plate and heat flow meter methods — Thick products of high and medium thermal
resistance.
EN 13163, Thermal insulation products for building — Factory made products of expanded polystyrene
(EPS) — Specification.
EN 13172, Thermal insulation products — Evaluation of conformity.
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using
test data from reaction to fire test.
prEN 13793, Thermal insulating products for building applications — Determination of behaviour under cyclic
loading.
EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to
thermal attack by a single burning item.
prEN 14309, Thermal insulation products for building equipment and industrial insulation — Factory made
products of expanded polystyrene(EPS) — Specification.
ISO 12491, Statistical methods for quality control of building materials and components.
SP 2687, Determination of the resistance to cyclic compressive loading.
3 Terms, definitions, symbols, units and abbreviated terms
3.1 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1.1
expanded polystyrene (EPS)
rigid cellular plastic material, manufactured by moulding prefoamed beads of expandable polystyrene or one
of its copolymers, with an air filled closed cellular structure
3.1.2
expanded polystyrene block
rigid insulation product or material generally of rectangular cross section and with a thickness not significantly
smaller than the width. Blocks are supplied trimmed or untrimmed
3.1.3
expanded polystyrene board
rigid insulation product (cut, moulded, or continuously foamed) of rectangular shape and cross section in
which the thickness is significantly smaller than the other dimensions. Boards may be of uniform thickness or
tapered. The board edges may be of various sorts (e.g., square, half lapped, tongue and groove)
3.1.4
preformed ware
insulation shapes formed by cutting or grinding from blocks or boards or by shape moulding
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prEN 14933:2004 (E)
3.1.5
level
the given value, which is the upper or lower limit of a requirement. The level is given by the declared value of
the characteristic concerned
3.1.6
class
a combination of two levels of the same property between which the performance shall fall
3.1.7
civil engineering applications (CEA)
applications in roads, railroads, embankments such as light weight fill and frost insulation, compressible
inclusion, floating devices etc.
Other relevant definitions are to be found in prEN ISO 9229.
3.2 Symbols, units and abbreviated terms
Symbols used in this standard:
is the prediction interval 1
1 – a
b is the width mm
d
is the thickness mm
is the water vapour permeability mg/(m·h·Pa)d
d is the declared thickness of a product m
D
d is the thickness of the test specimen m
s
is the relative change in width %Deb
Deis the relative change in thickness %
d
Deis the relative change in length %
l
is the deformation after step A according EN 1605 %D1
Dis the deformation after step B according EN 1605 %
2
eis the compressive creep %
ct
is the total relative thickness reduction %et
2
E is the dynamic elasticity modulus
MN/m
dyn
k is a factor related to the number of test results available 1
l is the length mm
L is the thickness effect parameter 1
is the 90 % fractile with a confidence level of 90 % for the thermal W/(m·K)l90, 90
conductivity
is the declared value of thermal conductivity W/(m·K)lD
is one test result of thermal conductivity W/(m·K)li
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prEN 14933:2004 (E)
is one test result of thermal conductivity for which the thickness effect is not W/(m·K)l¢i
negligible
is the mean thermal conductivity W/(m·K)lmean
lis the thermal conductivity with a prediction interval of 90 % W/(m·K)
pred
μ is the water vapour diffusion resistance factor 1
n is the number of test results 1
3
is the apparent densityrkg/m
a
2
R is the 90 % fractile with a confidence level of 90 % for the thermal resistance
m ·K/W
90/90
2
R is the declared thermal resistance ·K/W
m
D
2
R is one test result of thermal resistance ·K/W
m
i
2
R¢is one test result of thermal resistance for which the thickness effect is not m ·K/W
i
negligible
2
R is the mean thermal resistance m ·K/W
mean
sis the compressive stress at 10 % deformation kPa
10
sis the mean compressive stress at 10 % deformation kPa
10, mean
is the predicted compressive stress at 10 % deformation with a prediction kPas10, pred
interval of 90 %
is the compressive stress at 5 % deformation kPas5
sis the compressive stress at 2 % deformation kPa
2
is the bending strength kPasb
S is the deviation from squareness mm/m
b
slis the estimate of the standard deviation of the thermal conductivity W/(m·K)
kPasis the compressive stress to determine ec t
S is the deviation from flatness mm
max
2
s is the estimate of the standard deviation of the thermal resistance m ·K/W
R
tis the shear strength kPa
W is the water absorption by diffusion vol. %
dV
W is the long-term water absorption by total immersion vol.-%
lt
2
W is the long-term water absorption by partial immersion
kg/m
lp
X is the compressive creep mm
ct
X is the total compressive deflection mm
t
2
Z is the water vapour resistance m ·h·Pa/mg
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prEN 14933:2004 (E)
BS is the symbol of the declared level for bending strength
is the symbol of the declared level for compressive creep
CC(i ,i /y) s1 2
CLR(L) is the symbol of the declared level for resistance to cyclic loading under a specified load
CS (10) is the symbol of the declared level for compressive stress at 10 % deformation
CS (5) is the symbol of the declared level for compressive stress at 5 % deformation
CS (2) is the symbol of the declared level for compressive stress at 2 % deformation
DS(N) is the symbol of the declared class for dimensional stability under normal laboratory conditions
DLT is the symbol of the declared level for dimensional stability under load and temperature
FT is the symbol of the declared level for freeze thaw resistance
L is the symbol of the declared class for length tolerances
P is the symbol of the declared class for flatness tolerance
S is the symbol of the declared class for squareness tolerance
T is the symbol of the declared class for thickness tolerance
W is the symbol of the declared class for width tolerance
WD(V) is the symbol of the declared level for water absorption by diffusion
WL(T) is the symbol of the declared level for water absorption by total immersion
WS is the symbol of the declared level for short term water absorption
Z is the symbol of the declared water vapour resistance value
Abbreviations used in this standard:
EPS is Expanded PolyStyrene
ITT is Initial Type Testing
4 Requirements
4.1 General
Product properties shall be assessed in accordance with clause 5. To comply with this standard, products
shall meet the requirements of 4.2 and the requirements of 4.3, as appropriate.
NOTE Information on additional properties is given in Annex D.
One test result for a product property is the average of the measured values on the number of test specimens
given in Table 13. Wherever limit values are used, they shall represent the value achieved by at least 90% of
the production with a confidence level of 90 %.
For mechanical properties no single measured value within the consecutive group used for obtaining the test
result, shall be more than 10% lower than of the limit value defining the level. For non mechanical properties a
deviation from the limit value may be required and where appropriate these are expressed in the text.
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prEN 14933:2004 (E)
4.2 For all applications
4.2.1 Length and width
Length, l, and width, b, shall be determined in accordance with EN 822. No test result shall deviate from the
declared values by more than the tolerances given in Table 1 for the declared class.
4.2.2 Thickness
Thickness, d, shall be determined in accordance with EN 823. No test result shall deviate from the declared
thickness, d , by more than the tolerances given in Table 1, for the declared class.
D
4.2.3 Squareness
Squareness shall be determined in accordance with EN 824. The deviation from squareness on length and
width, S , shall not exceed the tolerances given in Table 1, for the declared class.
b
4.2.4 Flatness
Flatness shall be determined in accordance with EN 825. The maximum deviation from flatness, S , shall not
max
exceed the tolerances given in Table 1 for the declared class.
Table 1 — Classes of dimensional tolerances
Property Class Tolerances
Length L0 No requirement
a
L1  – 1,0 % or –10 mm
a
L2
± 0,5 % or – 5 mm
a
L3  –0,3 % or –3 mm
Width W0 No requirement
a
W1– 0,5 % or – 5 mm
a
W2– 0,3 % or – 3 mm
Thickness T0 No requirement

a
T1– 0,5 % or – 5 mm
a
T2– 0,3 % or – 3 mm
a
T3– 0,2 % or – 2 mm
Squareness S0 No requirement
S1– 5/1 000 mm
S2– 2/1 000 mm
Flatness P0 No requirement
P1 –30 mm/m
P2 –15 mm/m
P3 –10 mm/m
P4 – 5 mm/m
a
Whichever gives the least numerical tolerance.
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prEN 14933:2004 (E)
4.2.5 Dimensional stability
4.2.5.1 Dimensional stability under constant normal laboratory conditions
Dimensional stability under constant normal laboratory conditions (23 °C, 50 % relative humidity) shall be
determined in accordance with EN 1603. The relative changes in length, De, and width, De, shall not exceed
b
l
the values given in Table 2 for the declared class.
Table 2 — Classes of dimensional stability under normal laboratory conditions
Classes Requirement
%
DS(N) 5– 0,5
DS(N) 2– 0,2
4.2.5.2 Dimensional stability under specified temperature and humidity conditions
Dimensional stability under specified temperature and humidity conditions shall be determined in accordance
with EN 1604. The test shall be carried out for 48 h at (23 – 2) °C temperature and (90 – 5) % relative
humidity. The relative changes in length, De, width, De, and thickness, De, shall not exceed 1 %.
l b d
The test shall not be performed when the more severe test, described in 4.3.3, is used for a product in a
specific application.
4.2.6 Compressive stress at 2% or 5% and 10% deformation
Compressive stress at 2 % or 5 % and 10 % deformation, s or s and s, shall be determined in accordance
2 5 10
with EN 826. No test result shall be less than the values given in Table 3 or Table 4 and Table 5 for the
declared level.
NOTE 1 The compressive stress at 10 % deformation is not a design value.
NOTE 2 Although EN 82
...