EN 14209-2005 en Preformed plasterboard cornices - Definitions requirements and test methods《预制石膏板檐口 定义 要求和试验方法》.pdf

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1、BRITISH STANDARDBS EN 14209:2005Preformed plasterboard cornices Definitions, requirements and test methodsThe European Standard EN 14209:2005 has the status of a British StandardICS 91.100.10; 91.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g

2、59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14209:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 December 2005 BSI 14 December 2005ISBN 0 580 46926 3National forewordThis Br

3、itish Standard is the official English language version of EN 14209:2005. The UK participation in its preparation was entrusted by Technical Committee B/544, Plastering, rendering, dry lining, to Subcommittee B/544/5, External rendering, which has the responsibility to: aid enquirers to understand t

4、he text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.A list of organizations represented on this subcomm

5、ittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Se

6、arch” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal ob

7、ligations.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 24, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No.

8、Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14209November 2005ICS 91.100.10; 91.180English VersionPreformed plasterboard cornices - Definitions, requirements andtest methodsCorniches prformes en pltre revtues de carton -Dfinitions, spcifications et mthodes dessaiHohlkehlleisten au

9、s Kartonummanteltem Gips - Begriffe,Anforderungen und PrfverfahrenThis European Standard was approved by CEN on 16 September 2004.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 standar

10、d without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other langua

11、ge made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,German

12、y, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Cent

13、re: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14209:2005: EEN 14209:2005 (E) 2 Contents page Foreword3 Introduction .4 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Req

14、uirements.7 4.1 Reaction to fire.7 4.2 Flexural strength (expressed as bending behaviour)7 4.3 Dangerous substances .7 4.4 Composition.7 4.5 Profile and dimensions .8 5 Test methods9 5.1 Sampling.9 5.2 Dimensional measurements.9 5.3 Determination of accuracy of profile .10 5.4 Determination of bendi

15、ng behaviour.10 6 Evaluation of conformity.11 6.1 General11 6.2 Type testing11 6.3 Factory production control (FPC) 12 7 Designation of preformed plasterboard cornices 13 8 Marking, labelling and packaging 14 Annex A (informative) Sampling procedure for testing.15 A.1 General 15 A.2 Sampling procedu

16、re.15 A.2.1 General15 A.2.2 Random sampling15 A.2.3 Representative sampling 15 Annex B (normative) Mounting and fixing in the test according to EN 13823 (SBI test) .17 Annex ZA (informative) Clauses of this European Standard addressing provisions of EU Construction Products Directive18 ZA.1 Scope an

17、d relevant characteristics .18 ZA.2 Attestation and declaration of conformity of preformed plasterboard cornices 19 ZA.3 CE marking and labelling21 Bibliography 24 EN 14209:2005 (E) 3 Foreword This European Standard (EN 14209:2005) has been prepared by Technical Committee CEN/TC 241 “Gypsum and gyps

18、um based products”, 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 May 2006, and conflicting national standards shall be withdrawn at the latest by Augu

19、st 2007. 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 documen

20、t. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

21、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14209:2005 (E) 4 Introduction Preformed plasterboard cornices are composed of gypsum plaster encased in and firmly bonded to strong durable paper liners in the

22、shape of narrow lengths with various face profiles. The composition and finish is identical to that of gypsum plasterboard which makes them particularly suitable for use in situations where a compatible product is required to aesthetically enhance the junction between gypsum plasterboard lined or gy

23、psum plastered walls and ceilings. As well as concealing unsightly cracks they can be used to provide a permanent and effective seal. They can also be used for decorative and acoustic purposes. Preformed plasterboard cornices are installed with gypsum adhesive or mechanically fixed and can be finish

24、ed with direct surface decoration. Diagrams 1 and 2 show the relationship between this standard and the package of standards prepared to support the families of gypsum and ancillary products. Diagram 1 Family of gypsum products EN 14209:2005 (E) 5 Diagram 2 Family of ancillary products EN 14209:2005

25、 (E) 6 1 Scope This European standard specifies the characteristics and performance of preformed plasterboard cornices intended to be used in building construction works either as part of the original specification or subsequently for improved decorative enrichment of the wall/ceiling angle in rooms

26、. This standard covers the performance characteristics: reaction to fire and flexural strength. This standard covers also additional technical characteristics that are of importance for the use and acceptance of the product by the Construction Industry and the reference tests for these characteristi

27、cs. It provides for the evaluation of conformity of the product to this European standard. This standard does not cover plain plaster and gypsum fibrous plasterwork cornices. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated r

28、eferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 520, Gypsum plasterboards - Definitions, requirements and test methods EN 13501-1, Fire classification of construction products and building element

29、s Part 1: Classification using test data from reaction to fire tests EN 13823, Reaction to fire tests for building products - Building products excluding floorings exposed to the thermal attack by a single burning item EN 14496, Gypsum based adhesives for thermal/acoustic insulation composite panels

30、 and plasterboards - Definitions, requirements and test methods 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 plasterboard cornice preformed paper covered gypsum section with profiled face supported by shoulders 3.2 face exposed su

31、rface usually concave, or partially concave with further contours to add embellishment 3.3 edge boundary between the face and back angle which defines thickness (AC, see Figure 1) 3.4 back angle return from edge, preset at a nominal 90 to facilitate positioning during application 3.5 end cut section

32、 of length EN 14209:2005 (E) 7 3.6 girth dimension measured indicating the projection of the profile at 90 (XC, see Figure 1) Figure 1 Example of profile 4 Requirements 4.1 Reaction to fire Where subject to regulatory requirements, preformed plasterboard cornices shall be tested and classified in ac

33、cordance with EN 13501-1. Preformed plasterboard cornices tested according to EN 13823 (SBI test) shall be mounted and fixed in accordance with Annex B or wfhen the producer wishes to claim performance for a specific intended use, the mounting and fixing shall be representative of that intended use.

34、 4.2 Flexural strength (expressed as bending behaviour) Individual lengths shall be capable of being handled and installed using recommended practice. When tested in accordance with 5.4. the cornice shall not fracture. 4.3 Dangerous substances Materials used in products shall not release any dangero

35、us substances in excess of the maximum permitted levels specified in a relevant European Standard for the material or permitted in the national regulations of the member state of destination. 4.4 Composition Preformed plasterboard cornices shall have constituents common to gypsum plasterboard to EN

36、520. The paper shall be suitable to receive decoration or be pre-finished. The abutting paper edges on the back of the cornice are, usually, concealed and secured by a self-adhesive paper tape. The core may contain additives, aggregates and/or fibres. EN 14209:2005 (E) 8 4.5 Profile and dimensions 4

37、.5.1 General Preformed plasterboard cornices are manufactured in a variety girths, lengths and profiles to the producers declared nominal dimensions. The lettering in the sub-clauses below refers to Figure 1. 4.5.2 Profile Preformed plasterboard cornices shall be manufactured to provide a continuous

38、 section of regular profile and thickness to permit, subsequently, cut lengths to match their shape and thickness when ends are placed together. The ends shall be end finished, square and clean cut. 4.5.3 Face The face and edges shall be free from bumps, grooves, voids, blisters, burrs, scuffing and

39、 staining. The distance ED shall lie within the tolerance limits of 1 mm when checked in accordance with 5.3. a) minimum dimensions (“NOT GO“) b) maximum dimensions (“GO“) Figure 2 Silhouette template 4.5.4 Back angle The back angle (CXC) designed to facilitate positioning to the wall/ceiling angle

40、shall be not less than 90 when checked in accordance with 5.3. 4.5.5 Side angle The side angle (DAC) shall be of the specified profile e.g. square, bevelled or rounded when checked in accordance with 5.3. 4.5.6 Face width The face width of the product (AA) shall lie within the tolerance limits of 2

41、mm when checked in accordance with 5.3. EN 14209:2005 (E) 9 4.5.7 Thickness Thickness should be related to the constituents, composition and profile which combined shall provide the desired shape to facilitate handling and fixing. The main section (DF) shall have a minimum thickness of 9,5 mm and ma

42、y require to be greater than that of section (AC) which shall have a minimum thickness of 5,5 mm when measured in accordance with 5.2.1. 4.5.8 Length The length shall be measured in accordance with 5.2.2 and compared with the nominal length. The deviations shall be 020+mm 4.5.9 Squareness and integr

43、ity of ends The sections shall be end-finished, square and clean cut. 5 Test methods 5.1 Sampling A minimum of three cornices shall be subjected to the physical testing described in 5.2.1, 5.2.2 and 5.3. 5.2 Dimensional measurements 5.2.1 Thickness 5.2.1.1 Principle The thickness of the main member

44、(DF) shall be measured and the side member (AC) in three separate positions per specimen. 5.2.1.2 Apparatus A micrometer (callipers) permitting readings to 0,01 mm. 5.2.1.3 Procedure Measure the thickness between the surfaces of the main and side members at representative surface areas and positions

45、. 5.2.1.4 Expression of results Record three measurements of thickness per length for each main and side member. All three specimens shall comply with 4.5.7. 5.2.2 Length 5.2.2.1 Principle The length of the specimen shall be measured and the tolerances shall be compared. EN 14209:2005 (E) 10 5.2.2.2

46、 Apparatus a) flat surface; b) metal rule permitting readings to 1,0 mm. 5.2.2.3 Procedure Place the specimen on the flat surface and measure the length. 5.2.2.4 Expression of results Record the measurements of the three specimens. All specimens shall comply with 4.5.8. 5.3 Determination of accuracy

47、 of profile 5.3.1 Principle The accuracy, symmetry and angles of the profile across its length shall be checked for each specimen. 5.3.2 Apparatus A rigid plastics or aluminium sheet cut to provide a template, comprising two silhouettes, of the end profile of the cornice design. One cut to the minim

48、um and one cut to the maximum tolerance specification (see Figure 2). 5.3.3 Procedure Place the templates in turn over one end of the specimen and pull each along the length of the specimen to check its compliance with the specification of the profile, noting freedom from identifiable bumps and groo

49、ves on the exposed face CADAC. 5.3.4 Expression of results Record the results of the exercise on all three specimens. All specimens shall comply with the profile requirements in 4.5.2. 5.4 Determination of bending behaviour 5.4.1 Principle The ability of the full size specimen shall be established to resist fracture when flexed under its own mass. 5.4.2 Apparatus a) A balance with a capacity of 10 kg permitting readings to 1 g; b) a timer capable of measuring 5 min; c) two (25 5) mm diameter cylindrical steel supports, minimum 200 mm in length placed h