Bsi bs en 12608 1 2016

BS EN 12608-1:2016 BSI Standards Publication Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors — Classification, requirements and test methods Part 1: Non-coated PVC-U profiles with light coloured surfaces BS EN 12608-1:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 12608-1:2016 It supersedes BS EN 12608:2003 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee B/538/1, Windows and doors A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 580 84511 ICS 83.140.99; 91.060.50 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2016 Amendments/corrigenda issued since publication Date Text affected BS EN 12608-1:2016 EN 12608-1 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM March 2016 ICS 83.140.99; 91.060.50 Supersedes EN 12608:2003 English Version Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors - Classification, requirements and test methods - Part 1: Non-coated PVC-U profiles with light coloured surfaces Profilés de poly(chlorure de vinyle) non plastifié (PVCU) pour la fabrication des fenêtres et des portes Classification, exigences et méthodes d'essai - Partie 1: Profilés en PVC-U non revêtus avec des faces de teinte claire Profile aus weichmacherfreiem Polyvinylchlorid (PVCU) zur Herstellung von Fenstern und Türen Klassifizierung, Anforderungen und Prüfverfahren Teil 1: Nicht beschichtete PVC-U Profile mit hellen Oberflächen This European Standard was approved by CEN on 15 January 2016 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, 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: Avenue Marnix 17, B-1000 Brussels © 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 12608-1:2016 E BS EN 12608-1:2016 EN 12608-1:2016 (E) Contents Page European foreword Scope Normative references 3.1 3.2 3.3 3.4 Terms and definitions General Profile definitions Geometrical definitions Material definitions 4.1 4.2 4.3 4.4 Classifications 10 General 10 Classification of climatic zones 10 Classification of main profiles according to the resistance to impact by falling mass 11 Classification of main profiles according to the wall thickness of the external walls 11 5.1 5.1.1 5.1.2 5.1.3 5.2 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.4 5.5 5.5.1 5.5.2 5.6 5.7 5.8 5.9 5.9.1 5.9.2 5.9.3 5.10 5.10.1 5.10.2 5.10.3 Requirements 13 Material 13 UV resistant virgin material 13 Non-UV resistant virgin material 13 Reprocessed, recycled materials and non-UV resistant virgin materials 13 Appearance 14 Dimensions and tolerances 14 General 14 Nominal shape 14 Wall thickness of main profiles 14 Tolerances on other dimensions 15 Deviation from straightness of the main profiles 15 Linear weight of the main profiles 15 Heat reversion 15 Main profile 15 Auxiliary profiles 15 Resistance to impact of main profiles by falling mass 16 Behaviour after heating at 150 °C 16 Charpy impact resistance of main profile 16 Resistance to weathering 16 Exposure procedure 16 Impact strength after artificial weathering of main profiles 17 Colour fastness 17 Strength of welded corners and T-joints of main profiles 17 Test method 17 Tensile bending test 17 Compression bending test 17 6.1 6.2 6.2.1 Test methods 17 Determination of the appearance 17 Determination of dimensions 18 Measuring devices 18 BS EN 12608-1:2016 EN 12608-1:2016 (E) 6.2.2 6.2.3 6.2.4 6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.4 6.5 6.6 Test specimen 18 Conditioning 18 Procedure 18 Determination of the linear weight of the profile 18 Apparatus 18 Test specimen 18 Conditioning 18 Procedure 18 Determination of the thickness of a coextruded layer 19 Determination of colorimetric co-ordinates 19 Permissible tolerances on standard colours 19 7.1 7.2 Marking 19 Main profiles 19 Auxiliary profiles 20 Annex A (normative) Material characteristics, preparation of samples and requirements 21 A.1 General 21 A.2 Test specimens 21 A.3 Preparation of pressed plates 21 A.4 Material characteristics 21 A.4.1 Vicat softening temperature 21 A.4.2 Flexural modulus of elasticity 22 A.4.3 Tensile impact strength 22 A.5 Test report 22 Annex B (normative) Calculation method for the determination of the radiant exposure and exposure time to be used for artificial weathering 23 B.1 General 23 B.2 Calculation 23 BS EN 12608-1:2016 EN 12608-1:2016 (E) European foreword This document (EN 12608-1:2016) has been prepared by Technical Committee CEN/TC 33 “Doors, windows, shutters, building hardware and curtain walling”, the secretariat of which is held by AFNOR 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 September 2016, and conflicting national standards shall be withdrawn at the latest by March 2017 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 supersedes EN 12608:2003 The major modifications to the previous edition are: — Change in structure of definitions (general, profile, geometrical and material); — Review of definitions of own reprocessed (previously reprocessable) material (3.4.5) and external reprocessed (previously reprocessable) material (3.4.6); — Including a new material (non-UV resistant virgin material); — Review of Table 1, which defines the classification of climatic zones in Europe; (correction of a mistake in EN12608:2003); — Addition of a class (no performance determined) for the classification of main profiles according to the resistance to impact by falling mass (Table 2); — Complete review of 5.1, giving the requirements for materials, establishing the distinction between UV resistant virgin material (5.1.1), non UV-resistant virgin material (5.1.2) and reprocessed (previously reprocessable), recycled (previously recyclable) materials and non-UV resistant virgin materials (5.1.3) with the addition of Table which defines the uses allowed according to the type of material); — Review of the test of Charpy impact resistance of main profiles (5.8); Introduction of dependence on classes of wall thickness; — Review of the methods to determine the colorimetric co-ordinates (6.5); — Addition of new subclause 6.4 for the determination of the thickness of a co-extruded layer; — Addition of a requirement for individual values for the Vicat softening temperature (A.4.1); — Addition of a requirement for individual values for the flexural modulus of elasticity (A.4.2); — Addition of a requirement for individual values for the tensile impact strength (A.4.3); — Deletion of the Charpy impact resistance from Annex A (material characteristics); — Editorial review of the whole document and updating of normative references BS EN 12608-1:2016 EN 12608-1:2016 (E) EN 12608, Unplasticized poly(vinyl chloride) (PVC-U) profiles for the fabrication of windows and doors Classification, requirements and test methods consists of the following parts: — Part 1: Non-coated PVC-U profiles with light coloured surfaces — Parts 2: PVC-U profiles with laminated foils (in preparation) — Parts 3: PVC-U profiles with coextruded coloured top-layer (in preparation) — Parts 4: PVC-U profiles with lacquered-coating (in preparation) 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 12608-1:2016 EN 12608-1:2016 (E) Scope This European Standard specifies the classifications, requirements and test methods for non-coated unplasticized poly(vinyl chloride) (PVC-U) profiles with light coloured surfaces intended to be used for the fabrication of windows and doors It is applicable to PVC-U profiles with the colorimetric co-ordinates measured on the visible surfaces, as follows: — L* ≥ 82 (chromaticity co-ordinate Y ≥ 60), — –2,5 ≤ a* ≤ 5, — –5 ≤ b* ≤ 15 NOTE NOTE For editorial reasons in this document the term "window" is used for window/door Profiles made from PVC-U materials with reinforcements (e.g glass fibres) are not part of this scope 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 477, Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors Determination of the resistance to impact of main profiles by falling mass EN 478, Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors Appearance after exposure at 150 °C - Test method EN 479, Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors Determination of heat reversion EN 513, Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors Determination of the resistance to artificial weathering EN 514, Unplasticized polyvinylchloride (PVC-U) profiles for the fabrication of windows and doors Determination of the strength of welded corners and T-joints EN ISO 105-A01:2010, Textiles - Tests for colour fastness - Part A01: General principles of testing (ISO 105-A01:2010) EN ISO 178, Plastics - Determination of flexural properties (ISO 178) EN ISO 179-1, Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact test (ISO 179-1) EN ISO 306, Plastics - Thermoplastic materials - Determination of Vicat softening temperature (VST) (ISO 306) EN ISO 1163-2:1999, Plastics - Unplasticized poly(vinyl chloride) (PVC-U) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 1163-2:1995) BS EN 12608-1:2016 EN 12608-1:2016 (E) EN ISO 8256, Plastics - Determination of tensile-impact strength (ISO 8256) EN ISO 11664-1, Colorimetry - Part 1: CIE standard colorimetric observers (ISO 11664-1) EN ISO 11664-2, Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2) EN ISO 11664-4, Colorimetry - Part 4: CIE 1976 L*a*b* Colour space (ISO 11664-4) EN 20105-A02, Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour (ISO 105-A02) ISO 18314-1, Analytical colorimetry — Part 1: Practical colour measurement Terms and definitions For the purposes of this document, the following terms and definitions apply 3.1 General 3.1.1 durability ability of a profile to maintain satisfactory properties in a window over an estimated working life which is at least the economically reasonable working life of the window installed in a building (works) Note to entry: The indications given on the working life of a product cannot be interpreted as a guarantee given by the producer, but are regarded only as a means for choosing the right products in relation to the expected economically reasonable working life of the works 3.2 Profile definitions 3.2.1 profile product produced by extrusion 3.2.2 non-coated profile profile without any surface treatment and without non-PVC-U coextruded layer(s) EXAMPLE Profiles without laminated foils or painted surfaces 3.2.3 main profile profile, which defines the structure of the window 3.2.4 auxiliary profile profile intended to be used for the fabrication of a window which is not a main profile Note to entry: Main and auxiliary profiles can be different according to the window construction techniques in the individual countries 3.2.5 external wall (of a main profile) wall of a main profile corresponding to its sight and non-sight surfaces BS EN 12608-1:2016 EN 12608-1:2016 (E) 3.2.6 sight surface surface of a profile exposed to view when the installed window is closed Note to entry: See Figure Figure — Sight surfaces of three typical main profiles 3.2.7 visible surface any surface or parts of surface of a profile which can be exposed to UV radiation after installation of the window, open or closed 3.2.8 coextruded profile profile produced by using more than one extruder with different PVC-U materials according to 3.4 in one production process without mixing them 3.3 Geometrical definitions 3.3.1 nominal profile shape shape and dimensions of a profile, as specified by the manufacturer 3.3.2 deviation from straightness deviation of the longitudinal axis of a profile from the straight line 3.3.3 depth (of a profile) d dimension, measured at right angles to the glazing plane, between the front and back face surfaces of a profile Note to entry: See “d” in Figure BS EN 12608-1:2016 EN 12608-1:2016 (E) Detail measuring instrument Detail measuring length Areas to be taken into consideration are marked as shaded areas Figure — Areas of typical profiles with required wall thicknesses Table — Classification of main profiles according to wall thickness Class Sight surface Non-sight surface A B mm mm ≥ 2,8 ≥ 2,5 ≥ 2,5 ≥ 2,0 C No requirement No requirement NOTE The classification of main profiles according to the wall thickness is intended to represent the wide variations in profile and window design for the various systems which are in use in Europe It is not intended to imply differences in profile quality or in the performance of windows provided that the relevant performance requirements for both profiles and windows are met In order to be classified for either class A or B both minimum requirements for the wall thickness shall be fulfilled Sight surfaces of typical profiles are shown in Figure 12 BS EN 12608-1:2016 EN 12608-1:2016 (E) Requirements 5.1 Material 5.1.1 UV resistant virgin material The UV resistant virgin material shall comply with the requirements given in Annex A and 5.9 5.1.2 Non-UV resistant virgin material It is permitted to use a non-UV resistant virgin material when the coextruded visible surfaces of the profile are made from a UV resistant virgin material or an own reprocessed material The non-UV resistant virgin material shall comply with the requirements given in Annex A 5.1.3 Reprocessed, recycled materials and non-UV resistant virgin materials If the material used is not a UV resistant virgin material according to 5.1.1, the requirements of this document apply together with the following: a) the use of reprocessed, recycled and non UV resistant materials shall conform to Table 4; b) materials of types ERMa, ERMb or RMa may be used after any necessary re-stabilization and/or addition of additives (e.g modifiers, pigments, lubricants) for the core of a profile, where any visible surfaces of the window are completely covered by coextrusion with a virgin material or an own reprocessed material; c) for sight surfaces, the minimum value of thickness of the coextruded surface layer shall be 0,5 mm; d) for non-sight visible surfaces the minimum thickness of the coextruded surface layer shall be 0,2 mm; e) no requirement for minimum thickness of the coextruded surface layer at the bottom of grooves with an open width ≤ mm Table — Use of reprocessed, recycled and non UV resistant virgin materials Material Application Monoextrusion or coextrusion of a layer of any visible surface Non-visible surface and material covered by coextrusion a Own reprocessed material Non UV-resistant virgin material ERMa ERMb RMa RMb Yes No No No No No Yes Yes Yes Yesa Yesa No Materials as defined in 3.4 shall comply with the following requirement: A profile produced with this material shall fulfil the requirements: — when tested in accordance to EN 514, the strength of welded corners and T-joints of main profiles shall satisfy the requirements of 5.10 — When tested in accordance with A.4.1, VST shall be ≥ 75 °C and each single value shall be ≥ 73 °C — When tested in accordance with A.4.2, the flexure modulus of elasticity shall be ≥ 200 N/mm2 and each individual value shall be ≥ 000 N/mm2 13 BS EN 12608-1:2016 EN 12608-1:2016 (E) 5.2 Appearance The colour of the profile shall be the same and uniform on all visible surfaces, when viewed in accordance with 6.1 The surfaces of the profiles shall be smooth and free from pitting, impurities, cavities and other surface defects when viewed in accordance with 6.1 The edges of the profiles shall be clean and burr-free Further arrangements with respect to appearance, such as tolerances on the standard colour, should be made between the customer and the manufacturer, and are not part of the requirements of this standard 5.3 Dimensions and tolerances 5.3.1 General The determination of the dimensions shall be in accordance with 6.2 5.3.2 Nominal shape The cross-section of the profiles shall conform to the nominal profile shape The tolerances of the external dimensions of the profile (see Figure 2) with respect to the nominal profile shape shall be in accordance with Table Table — Tolerances on external dimensions External dimension mm Depth (d) ≤ 80 > 80 Overall width (w) 5.3.3 Wall thickness of main profiles Tolerance mm ± 0,3 ± 0,5 ± 0,5 The wall thickness of the main profile according to Figure shall be declared by the manufacturer according to Table The manufacturer shall declare the minimum value for the layer of the sight surface and the minimum value for the layer of the non-sight visible surface (see 5.1.3 c), d) and e)) 14 BS EN 12608-1:2016 EN 12608-1:2016 (E) Key Type of wall Class A Class B Class C ≥ 2,8 mm ≥ 2,5 mm No requirement ≥ 2,5 mm ≥ 2,0 mm No requirement ≥ 2,0 mm No requirement ≥ 2,0 mm No requirement No requirement No requirement Figure — Cross section of three typical main profiles and the minimum thickness of the walls 5.3.4 Tolerances on other dimensions The critical dimensions of main profiles other than the thickness of external walls and of auxiliary profiles as well as their tolerances shall be specified by the manufacturer 5.3.5 Deviation from straightness of the main profiles When measured in accordance with 6.2, the deviation from the straightness shall be ≤ mm for a length of m 5.4 Linear weight of the main profiles When measured in accordance with 6.3, the linear weight of the main profiles shall be ≥ 95 % of the nominal linear weight 5.5 Heat reversion 5.5.1 Main profile When tested in accordance with EN 479 for each test specimen the heat reversion (R) of the two largest opposing sight surfaces shall be ≤ 2,0 % For each test specimen, the difference of the values of the heat reversion, expressed as a percentage, between these sight surfaces shall be ≤ 0,4 5.5.2 Auxiliary profiles When tested in accordance with EN 479 the heat reversion for each test specimen shall be ≤ 3,0 % For glazing beads which are to be used externally, a limit of % for the heat reversion is required 15 BS EN 12608-1:2016 EN 12608-1:2016 (E) 5.6 Resistance to impact of main profiles by falling mass When tested in accordance with EN 477 for the appropriate classification, no more than one test specimen shall show rupture in the tested external sight surface For coextruded profiles the delamination of the coextruded layer shall be also considered as a failure Profiles of class according to Table are not submitted to the test of impact by falling mass 5.7 Behaviour after heating at 150 °C When tested in accordance with EN 478 the profiles shall show no defects For coextruded profiles, the delamination of the coextruded layer is considered as failure 5.8 Charpy impact resistance of main profile When tested in accordance with EN ISO 179-1 at (23 ± 2) °C, by using method designation EN ISO 179-1/1fA, the average charpy impact strength of the profile shall conform to Table for each profile class according to the wall thickness The test specimen shall be conditioned at (23 ± 2) °C for at least 16 h In deviation to EN ISO 179-1 and EN 513, no conditions for humidity are required The test specimen shall be taken from the sight surface of a main profile such that the longitudinal direction of the test specimen and profile are the same The test specimen shall have a length of (50 ± 1) mm, a width of (6 ± 0,2) mm and a thickness equal to the wall thickness of the profile The residual width between the notches shall be (3 ± 0,1) mm The support shall have a span of (40 +0,5/ 0) mm Table — Charpy impact strength thresholds Profile class Average measured wall thickness of profile before artificial weathering Charpy impact strength before artificial weathering Maximum impact strength reduction after artificial weathering mm kJ/m2 % ≥ 2,5 and < 2,8 ≥ 60 A B C ≥ 2,8 < 2,5 ≥ 55 40 ≥ 65 20 30 NOTE Tests according to EN ISO 179-1 shows a higher differentiation for samples after artificial weathering when specimen 1fA is used Tests for quality inspection after extrusion show a better differentiation using specimen 1fC 5.9 Resistance to weathering 5.9.1 Exposure procedure Test specimens shall be taken from sight surfaces of the profiles and shall be exposed in accordance with EN 513 for a time period representing five years of outdoor weathering in the climatic zone M or S A calculation method for the determination of the solar radiant exposure and exposure duration to be used is given in Annex B NOTE For quality control purposes, the time period can be decreased to represent two years outdoor exposure 16 BS EN 12608-1:2016 EN 12608-1:2016 (E) 5.9.2 Impact strength after artificial weathering of main profiles After an exposure in accordance with 5.9.1, the average charpy impact strength shall not be below the thresholds given in Table for each profile class As the test of impact strength after artificial weathering is a test for the material (formulation), not for the profile, manufacturer producing profiles in both, class A and B, may select either one of this class for impact testing Any manufacturer producing a profile of class C shall test class C separately 5.9.3 Colour fastness After an exposure in accordance with 5.9.1, the change in colour, evaluated in accordance with EN 513, between the unexposed and exposed test specimens, expressed as ΔE*, shall be ≤ and | Δb* | shall be ≤ The visual change in colour may be determined using the methods specified in EN 20105-A02 (ISO 105-A02) 5.10 Strength of welded corners and T-joints of main profiles 5.10.1 Test method Welded corners and T-joints shall be tested in accordance with EN 514 The welds shall not be finished by grooving, knifing etc except for the outside edge of the 90° angle, which shall be cleaned to permit the test piece to sit wholly onto the support 5.10.2 Tensile bending test The mean failure stress, σt, calculated for the maximum load of each corner, shall be ≥ 25 N/mm2 and each individual value shall be ≥ 20 N/mm2 If the depth or the overall width of the profile is ≥ 100 mm, the mean failure stress, σt, calculated for the maximum load of each corner, shall be ≥ 20 N/mm2 and each individual value shall be ≥ 16 N/mm2 5.10.3 Compression bending test The mean failure stress, σc, calculated for the maximum load of each corner, shall be ≥ 35 N/mm2 and each individual value shall be ≥ 30 N/mm2 If the depth or the overall width of the profile is ≥ 100 mm, the mean failure stress, σc, calculated for the maximum load of each corner, shall be ≥ 28 N/mm2 and each individual value shall be ≥ 24 N/mm2 Test methods 6.1 Determination of the appearance The appearance is determined by viewing by normal or corrected vision at a range of m, in 45° north, sky light perpendicular to the surface as specified in EN ISO 105-A01:2010, Clauses 14 and 15, or with an equivalent artificial source of light 17 BS EN 12608-1:2016 EN 12608-1:2016 (E) 6.2 Determination of dimensions 6.2.1 Measuring devices The measuring devices for the determination of the external dimensions and the wall thicknesses shall have an accuracy of 0,05 mm and for the deviation from straightness shall have an accuracy of 0,1 mm 6.2.2 Test specimen For the determination of the deviation from straightness, the test specimen shall be (1 000 ± 1) mm long Longer test specimens are permitted when the test is carried out according 6.2.4.2 6.2.3 Conditioning Condition the test specimen at (23 ± 5) °C for at least h prior to testing 6.2.4 Procedure 6.2.4.1 External dimensions and wall thicknesses Measure the external dimensions and wall thicknesses at (23 ± 5) °C The wall thickness of an external wall shall be measured mm towards an edge or ridge 6.2.4.2 Deviation from straightness Put the test specimen with the concave side at (23 ± 5) °C on a flat base Measure the gap(s) between the profile and the base with an appropriate measuring device (e.g distance gauges) Repeat the test with the side perpendicular to that tested first 6.3 Determination of the linear weight of the profile 6.3.1 Apparatus 6.3.1.1 6.3.1.2 profile Balance, with an accuracy of g Measuring device with an accuracy of 0,5 mm for the determination of the length of the 6.3.2 Test specimen The test specimen shall be 200 mm to 300 mm long 6.3.3 Conditioning Condition the test specimen at (23 ± 5) °C for at least h prior to testing 6.3.4 Procedure Measure the length of the test specimen to mm, weigh the test specimen to g Calculate the linear weight of the profile expressed in g/m to the nearest 10 g/m Different methods for determination of profile weight (e.g surface measurement by cameras) may be used when a clear correlation has been established by the manufacturer 18 BS EN 12608-1:2016 EN 12608-1:2016 (E) 6.4 Determination of the thickness of a coextruded layer The thickness of the coextruded layer shall be measured with suitable measuring devices (e.g magnifying glass or measuring microscope) on a thin section or a ground cut edge 6.5 Determination of colorimetric co-ordinates The coordinates of the CIE 1976 L*a*b* colour space and the colour differences ΔE*ab, as defined in EN ISO 11664-4, shall be determined according to the method specified in ISO 18314-1, with the following conditions: — standard illuminant D65, defined in EN ISO 11664-2; — using observing fields of 2° or 10° angular subtense, defined in EN ISO 11664-1; — measurement including the specular reflection and the geometry di:8° (without gloss trap) 6.6 Permissible tolerances on standard colours When determined in accordance with 6.5, it is recommended that following tolerances are permitted: — |ΔL*| ≤ 1,0 — |Δa*| ≤ 0,5 — |Δb*| ≤ 0,8 — ΔE* ≤ 1,0 Marking 7.1 Main profiles 7.1.1 Main profiles shall be legibly and visibly marked at least once every m along the length of the profile 7.1.2 The marking of the main profiles shall contain the following minimum information: — the name or trade mark of the manufacturer; — reference to EN 12608-1; — climatic zone classification; — resistance to impact by falling mass classification; — wall thickness classification; — in case of use of recycled material: RMa; — production code sufficient to enable traceability (e.g date, machine and/or shift number) EXAMPLE ABC LTD — EN 12608-1 — M — II — C — 12.04.17,38,2 19 BS EN 12608-1:2016 EN 12608-1:2016 (E) Optional additional information contained within the mark may include: — profile type/code; — level of third party involvement (attestation) 7.2 Auxiliary profiles 7.2.1 7.2.2 Auxiliary profiles shall be similarly marked either on the profile itself or its packaging The marking of auxiliary profiles shall contain the following minimum information: — the name or trade mark of the manufacturer; — reference to EN 12608-1; — climatic zone classification; — production code sufficient to enable traceability EXAMPLE 20 XYZ LTD — EN 12608-1 — S — 12,368 BS EN 12608-1:2016 EN 12608-1:2016 (E) Annex A (normative) Material characteristics, preparation of samples and requirements A.1 General Annex A describes a procedure to prepare samples from PVC-U profiles or from granules or powder from virgin, reprocessed or recycled material for the determination of the characteristics and the requirements for those characteristics A.2 Test specimens The test specimens for the determination of the material characteristics according to A.4 shall be taken either from profiles or from pressed plates A.3 Preparation of pressed plates The preparation of the pressed plates shall be in accordance with the procedure given in EN ISO 1163-2:1999, Clause and with the following: — the material used shall be shredded extruded PVC-U profiles, granules or powder from virgin, reprocessed or recycled materials; — the differential speed between the two rolls of the mixing mill shall be within the range : 1,4 to : 1,1; — the pressed plate shall have a thickness of (4 ± 0,2) mm; — the cooling of the plate given in EN ISO 1163-2:1999, 3.3.3, shall be at the nominal rate of 15 °C/min A.4 Material characteristics A.4.1 Vicat softening temperature When tested in accordance with EN ISO 306 using method B with a temperature rate of (50 ± 5) °C/h the average Vicat softening temperature (VST) shall be ≥ 75 °C and each individual value shall be ≥ 73 °C For non-coextruded profiles, the test specimens shall be taken directly from the profiles or from pressed plates For coextruded profiles, the test specimens shall be taken from pressed plates made from materials separately or from profiles In case of dispute, the test on pressed plates is the reference method 21 BS EN 12608-1:2016 EN 12608-1:2016 (E) A.4.2 Flexural modulus of elasticity When tested at (23 ± 2) °C in accordance with EN ISO 178 the average flexural modulus of elasticity (Ef) shall be ≥ 200 N/mm2 and each individual value shall be ≥ 000 N/mm2 For non-coextruded profiles the test specimens shall be taken directly from the profiles or from pressed plates For coextruded profiles the test specimens shall be taken from pressed plates made from both materials separately or from profiles In case of dispute the test using pressed plates prepared according to A.3 is the reference method A.4.3 Tensile impact strength When tested at (23 ± 2) °C in accordance with EN ISO 8256, using type test specimen, the averagetensile impact strength shall be ≥ 600 kJ/m2 Every single value shall be ≥ 450 kJ/m2 For non-coextruded as well as coextruded profiles the test specimens shall be taken directly from the profiles A.5 Test report The test report shall include the following information: a) reference to this annex (EN 12608-1:2016, Annex A); b) details of the test specimens; c) values obtained and average values 22 BS EN 12608-1:2016 EN 12608-1:2016 (E) Annex B (normative) Calculation method for the determination of the radiant exposure and exposure time to be used for artificial weathering B.1 General This annex describes a procedure to calculate the duration of the exposure needed to assess resistance to moderate (M) and severe (S) climates to be used for artificial weathering It includes also a justification for the chosen method B.2 Calculation B.2.1 In 4.2 the climatic zones are classified in terms of the annual solar radiant exposure falling on a horizontal surface and the average temperature of the warmest month per year (see Table 1) B.2.2 For the purpose of this calculation the following assumption is made on the annual solar radiant exposure: — for moderate climate the amount of solar radiant exposure is estimated at GJ/m2/year; — for severe climate the amount of solar radiant exposure is estimated at GJ/m2/year B.2.3 In order to compare these figures with the usual practice in artificial weathering, it is necessary to consider not the total solar radiation energy as in B.2.2, but that part falling in the ultraviolet and visible regions between 300 nm to 800 nm This is about 60 % of the total solar radiation energy A further correction factor of 67 % is applied to allow for the fact, that not all this radiation is acting at higher summer temperatures and so will be less damaging to the effected surfaces The recommended radiation doses for the wavelength range between 300 nm to 800 nm are given in Table B.1 Table B.1 — Recommended radiant exposures for the wavelength range 300 nm to 800 nm Type of climate year's equivalent years' equivalent 10 years' equivalent Radiant exposure in moderate climate (M) Radiant exposure in severe climate (S) GJ/m2 GJ/m2 8,0 12,0 3,2 16,0 4,8 24,0 B.2.4 For an artificial weathering device having a time-averaged irradiance of I W/m2 in the range 300 nm to 800 nm the exposure times are given in Table B.2 23 BS EN 12608-1:2016 EN 12608-1:2016 (E) Table B.2 — Recommended exposure times for the wavelength range 300 nm to 800 nm Climate type Exposure time Exposure time in moderate climate (M) in severe climate (S) h h year's equivalent 4,4 × 105/I 6,6 × 105/I 10 year's equivalent 4,4 × 106/I 6,6 × 106/I years' equivalent 2,2 × 106/I 3,3 × 106/I Where I = 550 W/m2, this means for years' equivalent radiation, then the following exposure time is needed: — for a moderate climate (M): an exposure time of approximately 000 h; — for a severe climate (S): an exposure time of approximately 000 h NOTE This calculation method represents only approximate means of estimation However, it does put the requirements on a logical basis bearing in mind that natural weathering itself is a variable phenomenon depending on location, aspect, shading, etc The recommended exposure times are calculated as example The actual exposure times shall be calculated with the real values of the used equipment to achieve the required radiant exposure in GJ/m² 24 This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions Our British Standards and other publications are updated by amendment or revision The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consultation process Organizations of all sizes and across all sectors choose standards to help them achieve their goals Information on standards We can provide you with the knowledge that your organization needs to succeed Find out more about British Standards by visiting our website at bsigroup.com/standards or contacting our Customer Services team or Knowledge Centre Buying standards You can buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at bsigroup.com/shop, where hard copies can also be purchased If you need international and foreign standards from other Standards Development Organizations, hard copies can be ordered from our Customer Services team Subscriptions Our range of subscription services are designed to make using standards easier for you For further information on our subscription products go to bsigroup.com/subscriptions With British Standards Online (BSOL) you’ll have instant access to over 55,000 British and adopted European and international standards from your desktop It’s available 24/7 and is refreshed daily so you’ll always be up to date You can keep in touch with standards developments and receive substantial discounts on the purchase price of standards, both in single copy and subscription format, by becoming a BSI Subscribing Member PLUS is an updating service exclusive to BSI Subscribing Members You will automatically receive the latest hard copy of your standards when they’re revised or replaced To find out more about becoming a BSI Subscribing Member and the benefits of membership, please visit bsigroup.com/shop With a Multi-User Network Licence (MUNL) you are able to host standards publications on your intranet Licences can cover as few or as many users as you wish With updates supplied as soon as they’re available, you can be sure your documentation is current For further information, email bsmusales@bsigroup.com BSI Group Headquarters 389 Chiswick High Road London W4 4AL UK We continually improve the quality of our products and services to benefit your business If you find an inaccuracy or ambiguity within a British Standard or other BSI publication please inform the Knowledge Centre Copyright All the data, software and documentation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that owns copyright in the information used (such as the international standardization bodies) and has formally licensed such information to BSI for commercial publication and use Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI Details and advice can be obtained from the Copyright & Licensing Department Useful Contacts: Customer Services Tel: +44 845 086 9001 Email (orders): orders@bsigroup.com Email (enquiries): cservices@bsigroup.com Subscriptions Tel: +44 845 086 9001 Email: subscriptions@bsigroup.com Knowledge Centre Tel: +44 20 8996 7004 Email: knowledgecentre@bsigroup.com Copyright & Licensing Tel: +44 20 8996 7070 Email: copyright@bsigroup.com