SIST EN 14933:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Toplotnoizolacijski in lahki polnilni proizvodi za inženirske objekte - Proizvodi iz ekspandiranega polistirena (XPS) - SpecifikacijaWärmedämmung und leichte Füllprodukte für Anwendungen im Tiefbau — Werkmäßig hergestellte Produkte aus expandiertem Polystyrol (EPS) — SpezifikationProduits isolants thermiques et de remblayage pour les applications de génie civil — Produits manufacturés en polystyrene expansé (EPS) — SpécificationsThermal insulation and light weight fill products for civil engineering applications — Factory made products of expanded polystyrene (EPS) — Specification91.100.60Thermal and sound insulating materials83.100Penjeni polimeriCellular materialsICS:Ta slovenski standard je istoveten z:EN 14933:2007SIST EN 14933:2007en,de01-december-2007SIST EN 14933:2007SLOVENSKI
STANDARD
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: ESIST EN 14933:2007

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 SIST EN 14933:2007

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 SIST EN 14933:2007

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 SIST EN 14933:2007

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. SIST EN 14933:2007

Table 1 — Classes of dimensional tolerances Property Class Tolerances Length L0 No requirement
L1 ±
1,0 % or ±
10 mm a
L2 ± 0,5 % or ±
5 mm a
L3 ±
0,3 % or ±
3 mm a Width W0 No requirement
W1 ± 0,5 % or ±
5 mm a
W2 ±
0,3 % or ±
3 mm a Thickness
T0 No requirement
T1 ±
0,5 % or ±
5 mm a
T2 ±
0,3 % or ±
3 mm a
T3 ±
0,2 % or ±
2 mm a 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 greatest tolerance.
4.2.5 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 after storage for 48 h at (23 ± 2) °C temperature and (90 ± 5) % relative humidity. The relative changes in length, ∆εl, width, ∆εb, and thickness, ∆εd, shall not exceed 1 %. The test shall not be performed when the more severe test, described in 4.3.2.1, is used. 4.2.6 Compressive stress at 10 % deformation Compressive stress at 10 % deformation, σ10, shall be determined in accordance with EN 826. No test result shall be lower than the values given in Table 2 for the declared level. SIST EN 14933:2007

Table 2 — Levels for compressive stress at 10 % deformation Level Requirement kPa CS(10)40 ≥ 40 CS(10)50 ≥ 50 CS(10)60 ≥ 60 CS(10)70 ≥ 70 CS(10)80 ≥ 80 CS(10)90 ≥ 90 CS(10)100 ≥ 100 CS(10)120 ≥ 120 CS(10)150 ≥ 150 CS(10)200 ≥ 200 CS(10)250 ≥ 250 CS(10)300 ≥ 300 CS(10)350 ≥ 350 CS(10)400 ≥ 400 CS(10)450 ≥ 450 CS(10)500 ≥ 500
4.2.7 Bending strength Bending strength, σb, shall be determined in accordance with EN 12089. For handling purposes, products shall have a minimum level of bending strength of 50 kPa. 4.2.8 Reaction to fire 4.2.8.1 Reaction to fire classification Reaction to fire classification (Euroclasses) shall be determined in accordance with EN 13501-1. 4.2.8.2 Continuous glowing combustion Where subject to regulation, the continuous glowing combustion shall be declared. In the absence of a European test method which is under development, the existing relevant national test method applies. 4.3 For specific applications 4.3.1 General If there is no requirement for a property described in 4.3 for a product in use, than the property does not need to be determined and declared by the manufacturer. SIST EN 14933:2007

4.3.2.2 Deformation under specified compressive load and temperature conditions Deformation under specified compressive load and temperature conditions shall be determined in accordance with EN 1605. For each test condition the difference between the relative deformation, ε1, after step A and ε2, after step B as described in EN 1605 shall not exceed the values given in Table 4 for the declared level. Table 4 — Levels of deformation under specified compressive load and temperature conditions Level Test conditions Requirement % DLT(1)5 load: 20 kPa temperature: (80 ± 1) °C time: (48 ± 1) h ≤ 5 DLT(2)5 load: 40 kPa temperature: (70 ± 1) °C time: (168 ± 1) h ≤ 5 DLT(3)5 load: 80 kPa temperature: (60 ± 1) °C time: (168 ± 1) h ≤ 5
4.3.3 Compressive stress at 2 % and/or 5 % deformation The compressive stress at 2 % and/or 5 % deformation, σ2, and/or σ5, shall be determined in accordance with EN 826. No test result for either the compressive stress at 2 % and/or 5 % deformation , σ2,and/ or, σ5, shall be lower than the values given in Table 5 and Table 6 for the declared level. NOTE Although EN 826 does not specify the calculation of the compressive stress at 2 % and 5 % deformation, the calculation should be done in the same way. SIST EN 14933:2007

Table 5 — Levels for compressive stress at 2 % deformation Level Requirement kPa CS(2)20 ≥ 20 CS(2)30 ≥ 30 CS(2)40 ≥ 40 CS(2)50 ≥ 50 CS(2)60 ≥ 60 CS(2)70 ≥ 70 CS(2)80 ≥ 80 CS(2)90 ≥ 90 CS(2)100 ≥ 100 CS(2)120 ≥ 120 CS(2)150 ≥ 150 CS(2)200 ≥ 200 CS(2)250 ≥ 250 CS(2)300 ≥ 300 CS(2)350 ≥ 350
Table 6 — Levels for compressive stress at 5 % deformation Level Requirement kPa CS(5)30 ≥ 30 CS(5)40 ≥ 40 CS(5)50 ≥ 50 CS(5)60 ≥ 60 CS(5)70 ≥ 70 CS(5)80 ≥ 80 CS(5)90 ≥ 90 CS(5)100 ≥ 100 CS(5)120 ≥ 120 SIST EN 14933:2007

4.3.4 Point load The effects of foot traffic shall be assessed by means of determination of compressive stress at 10 % deformation in accordance with EN 826, see 4.2.6 4.3.5 Compressive creep Compressive creep, εct, and total thickness reduction, εt, shall be determined after at least one hundred twenty two days of testing at a declared compressive stress, σc, given in steps of at least 1 kPa, and the results extrapolated thirty times, corresponding to ten years, to obtain the declared levels in accordance with EN 1606. Compressive creep shall be declared in levels, i2 and the total thickness reduction shall be declared in levels, i1, with steps of 0,5 % at the declared stress. No test result shall exceed the declared levels at the declared stress. NOTE 1 For building applications a total thickness reduction, εt, of 2 % and an exploration time of 50 years are generally required. NOTE 2 Examples for declaration of levels for compressive creep: Level Test time t days Extrapolation time years Declared stress σc kPa Requirement % CC(i1/i2/10)σc 122 10 σc ε t≤ i1 and
ε ct ≤i2
CC(i1/i2/25)σc 304 25 σc ε t≤ i1 and
ε ct ≤i2
CC(i1/i2/50)σc 608 50 σc ε t≤ i1 and
ε ct ≤i2
NOTE 3 Referring to the designation code CC(i1/i2/y)σc, according to Clause 6, a declared level CC(2/1.5/50)100, for example, indicates a value not exceeding 1,5 % for compressive creep and 2 % for total thickness reduction after extrapolation at 50 years (i.e. 30 times six hundred eight days of testing) under a declared stress of 100 kPa. 4.3.6 Resistance to cyclic compressive loading 4.3.6.1 Resistance to cyclic compressive loading with square wave load application The resistance to cycling compressive loading with square wave load application shall be determined in accordance with Annex D and shall be used specifically for railway applications. The relative compression, Di , in % , shall be determined after a defined number of load cycles and the applied compressive stress, σi . The SIST EN 14933:2007

load cycles at the declared stress. NOTE For railway applications typically a relative compression, Di , of 5 % after 2 x 106
load cycles at a compressive stress or compressive strength of 100 to 300 kPa are generally required. 4.3.6.2 Resistance to cyclic compressive loading with sinus load application The resistance to cycling compressive loading with sinus load application shall be determined in accordance either with EN 13793. The relative deformation, εI,max, in percent shall be determined after a defined number of load cycles and the applied compressive stress, σi . The relative deformation, εI,max, shall be declared as level, i. No test result shall exceed the declared level at the declared number of load cycles and the declared stress. 4.3.7 Bending strength Bending strength, σb, shall be determined in accordance with EN 12089. No test result shall be less than the value given in Table 7 for the declared level. Table 7 — Levels of bending strength Level Requirement kPa BS50 ≥ 50 BS75 ≥ 75 BS100 ≥ 100 BS115 ≥ 115 BS125 ≥ 125 BS135 ≥ 135 BS150 ≥ 150 BS170 ≥ 170 BS200 ≥ 200 BS250 ≥ 250 BS350 ≥ 350 BS450 ≥ 450 BS525 ≥ 525 BS600 ≥ 600 BS675 ≥ 675 BS750 ≥ 750
4.3.8 Thermal resistance and thermal conductivity Thermal resistance and thermal conductivity shall be based upon measurements carried out in accordance with EN 12667 or EN 12939 for thick products.
For light weight fill applications without thermal insulation requirements it is permitted to declare the maximum thermal value as defined in the Scope of this European Standard (0,060 W/(m·K)). SIST EN 14933:2007

4.3.9.2 Long term water absorption by diffusion Long term water absorption by diffusion, WdV, shall be determined in accordance with EN 12088. No test result shall exceed the value given in Table 9, for the declared level. SIST EN 14933:2007

4.3.10 Freeze-thaw resistance Freeze-thaw resistance shall be determined in accordance with EN 12091 using the test specimen from 4.3.9.2. The additional water absorption, WV, shall be not higher than the value given in Table 10 for the declared level. Table 10 — Levels for freeze-thaw resistance
Level Requirement % by volume FTC 5 ≤ 5 FTC 4 ≤ 4 FTC 3 ≤ 3 FTC 2 ≤ 2 FTC 1 ≤1
After the freeze-thaw test the reduction in compressive stress at 10 % deformation, σ10, of the dry specimens, when tested in accordance with EN 826 shall not exceed 10 % of the initial value. 4.3.11 Water vapour transmission Water vapour transmission properties shall be determined in accordance with EN 12086 and declared as the water vapour diffusion resistance factor, µ, for homogeneous products and as the water vapour resistance, Z, for faced products. No test result shall be less than the declared value. In the absence of measurements, the water vapour diffusion resistance factor, µ, of EPS products may be chosen from Table E.3. 4.3.12 Release of dangerous substances NOTE See Annex ZA. 4.3.13 Apparent density Apparent density, ρa, shall be determined in accordance with EN 1602 when it is needed for indirect testing. SIST EN 14933:2007

— SIST EN 14933:2007
...