1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58requirements and test methodsThe European Standard EN 14246:2006 has the status of a British Standa
2、rdICS 91.100.10Gypsum elements for suspended ceilings Definitions, BRITISH STANDARDBS EN 14246:2006Incorporating corrigendum no. 1BS EN 14246:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2007ISBN 978 0 580 59632 2Natio
3、nal forewordThis British Standard is the UK implementation of EN 14246:2006, incorporating corrigendum July 2007.The UK participation in its preparation was entrusted by Technical Committee B/544, Plastering, rendering, dry lining, to Subcommittee B/544/1, Gypsum plasters, cast gypsum and ancillarie
4、s.A list of organizations represented on this subcommittee can be obtained on request to its secretary.EN 14246:2006 is a candidate “harmonized” European Standard and fully takes into account the requirements of the European Commission Mandate M/106, Gypsum products, given under the EU Construction
5、Products Directive (89/106/EEC), and is intended to lead to CE marking. The date of applicability of EN 14246:2006 as a harmonized European Standard, i.e. the date after which this standard may be used for CE marking purposes, is subject to an announcement in the Official Journal of the European Com
6、munities.EN 14246:2006 is the subject of transitional arrangements agreed under the European Commission mandate. The Member States have agreed a nominal transition period for the co-existence of EN 14246:2006 and their corresponding national standard(s). It is intended that this period will comprise
7、 a nominal nine-month period during which any required changes to national regulations are to be made, followed by a further nominal twelve-month period for the implementation of CE marking. At the end of this co-existence period, the national standard(s) will be withdrawn.In the UK, there are no co
8、rresponding national standards.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 cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date
9、Comments17317 Corrigendum No. 131 August 2007 Changes to 6.8.4, 6.9.2 and Annex ZAEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14246June 2006ICS 91.100.10English VersionGypsum elements for suspended ceilings - Definitions,requirements and test methodsElments en pltre pour plafonds suspendus - D
10、finitions,spcifications et mthodes dessaiGipselemente fr Unterdecken (abgehngte Decken) -Begriffe, Anforderungen und PrfverfahrenThis European Standard was approved by CEN on 10 May 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givi
11、ng 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 Central Secretariat or to any CEN member.This European Standard exists in three official versions
12、 (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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus,
13、 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 STANDARDIZATIONCOMIT EUR
14、OPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14246:2006: EIncorporating corrigendum July 2007EN 14246:2006 (E) 2 Conten
15、ts Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Types of gypsum ceiling elements for suspended ceilings8 4.1 General8 4.2 Gypsum units.8 4.3 Gypsum tiles . 10 5 Requirements 11 5.1 Fire behaviour . 11 5.2 Water vapour permeability (expressed as water
16、 vapour resistance factor). 12 5.3 Flexural strength (expressed as flexural breaking load) 12 5.4 Acoustic properties 12 5.5 Thermal properties Thermal resistance (expressed as thermal conductivity) 12 5.6 Regulated substances 13 5.7 Appearance . 13 5.8 Dimensions and tolerances. 13 5.9 Squareness 1
17、4 5.10 Flatness (not for tiles with decorative face). 14 5.11 Mass per unit of surface and tolerance 14 5.12 Moisture content. 14 5.13 pH . 14 6 Test methods. 15 6.1 Sampling 15 6.2 Preparation of the test specimens 15 6.3 Determination of flexural strength 15 6.4 Determination of surface appearance
18、 17 6.5 Measurement of dimensions . 17 6.6 Determination of squareness 20 6.7 Determination of flatness (not for gypsum elements with decorated faces) . 21 6.8 Determination of the mass per surface unit 21 6.9 Determination of the moisture content. 22 6.10 pH measurement. 22 6.11 Test report . 22 7
19、Evaluation of conformity 23 7.1 General. 23 7.2 Type testing. 23 7.3 Factory production control (FPC) . 24 8 Designation . 25 9 Marking, labelling and packaging . 26 Annex A (informative) Sampling procedure for testing . 27 A.1 General. 27 A.2 Sampling procedure . 27 EN 14246:2006 (E) 3 Annex ZA (in
20、formative) Clauses of this European Standard addressing provisions of EU Construction Products Directive.29 ZA.1 Scope and relevant characteristics.29 ZA.2 Attestation and declaration of conformity of gypsum elements for suspended ceilings .31 ZA.3 CE Marking and labelling33 Bibliography35 EN 14246:
21、2006 (E) 4 Foreword This document (EN 14246:2006) has been prepared by Technical Committee CEN/TC 241 “Gypsum and gypsum 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
22、by endorsement, at the latest by December 2006, and conflicting national standards shall be withdrawn at the latest by March 2008. 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 E
23、U Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belg
24、ium, 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. EN 14246:2006 (E) 5 Introduction
25、 Gypsum elements for suspended ceiling are composed of gypsum plaster; they are used for suspended ceilings for interior applications as units or tiles. Diagram 1 shows the relationship between this European Standard and the package of standards prepared to support the family of gypsum products. Dia
26、gram 1 Family of gypsum products EN 14246:2006 (E) 6 1 Scope This European Standard specifies the characteristics and performance of factory made cast gypsum elements, for which the main intended uses are the construction of suspended ceilings under universal substrates. It covers the following prod
27、uct performance characteristics: reaction to fire, water vapour permeability, flexural strength (expressed as breaking load) and thermal resistance (expressed as thermal conductivity). The following performance characteristics are linked to systems assembled with gypsum elements for suspended ceilin
28、gs: fire resistance, direct airborne sound insulation and acoustic absorption, which can be measured according to the corresponding European test methods. If required, tests should be done on assembled system simulating the end use conditions. This European Standard describes the reference tests for
29、 technical specifications. This European Standard also covers additional technical characteristics that are of importance for the use and the acceptance of the product by the construction industry and the reference tests for these characteristics. It provides for the evaluation of conformity of the
30、product to this European Standard. This European Standard does not cover metal ceiling grids or plasterboard products. This European Standard excludes stiffening timber roof truss structure applications. 2 Normative references The following referenced documents are indispensable for the application
31、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 13501-1, Fire classification of construction products and building elements Part 1: Classification using test data from
32、 reaction to fire tests EN 13501-2, Fire classification of construction products and building elements Part 2: Classification using data from fire resistance tests, excluding ventilation services EN ISO 140-3, Acoustics Measurement of sound insulation in buildings and of building elements Part 3: La
33、boratory measurements of airborne sound insulation of buildings elements (ISO 140-3:1995) EN ISO 354, Acoustics Measurement of sound absorption in a reverberation room (ISO 354:2003) EN ISO 717-1, Acoustics Rating of sound insulation in buildings and of building elements Part 1: Airborne sound insul
34、ation (ISO 717-1:1996) EN ISO 9001:2000, Quality management systems Requirements (ISO 9001:2000) EN 14246:2006 (E) 7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 suspended ceiling sub-structural building element fixed and installed under l
35、oad bearing components of a building or structure with the objective to provide final characteristics and performance 3.2 ceiling substructure suspended frame which support the gypsum ceiling element 3.3 gypsum element for suspended ceilings factory made building element produced from calcium sulpha
36、te and water. It may incorporate additives, aggregates and protected mineral fibre, tissue or glass fibre NOTE Gypsum elements for suspended ceilings include: units (see 4.2) and tiles (see 4.3), and can be manufactured with reinforced edges and profiles. 3.4 face surface intended to be exposed when
37、 installed 3.5 back surface intended to be concealed. It may be plain and smooth or rough with ribs to improve the strength 3.6 grid metal profile sections, assembled in geometric formations to provide support for units or tiles NOTE Specifications of grids are indicated in EN 13964. 3.7 reinforceme
38、nt internal component of the gypsum ceiling element to improve cohesion, strength and durability 3.8 integral hanger metal wire or strap attached to or embedded in the rough surface (back). Conforming to EN 13964, used to hang the gypsum ceiling element on the anchorage elements of the substructure
39、3.9 fixing pad scrim comprising natural fibres impregnated with gypsum plaster and extended to form a grip or handle 3.10 mineral fibre mat material incorporated in the product providing cohesion, to improve spanning characteristics and durability 3.11 dimensions length (L): longest side of the elem
40、ent; width (W): shortest side of the element; EN 14246:2006 (E) 8 total thickness (a) (see Table 2): distance between the face and the back; minimum thickness on the edge: distance between the back and the surface of bearing. 4 Types of gypsum ceiling elements for suspended ceilings 4.1 General Two
41、general kinds of gypsum elements for suspended ceilings are defined: 4.2 Gypsum units 4.2.1 General Rectangular gypsum elements with a flat and smooth face used to make a flat and continuous ceiling. Two types are defined: 4.2.2 Traditional unit Unit with four straight edges. It may be available wit
42、h bevelled edges (see Figure 1). These units always incorporate integral hangers. NOTE Edges can be square or bevelled. EN 14246:2006 (E) 9 Figure 1 Ceiling unit (traditional) 4.2.3 Unit with rebated edges Unit with the longitudinal edges rebated and the rim edges reinforced (see Figure 2). These un
43、its have also reinforced rim edges and protruding ribs on the rough face and may incorporate integral hangers. NOTE Edges can be square or bevelled. EN 14246:2006 (E) 10 Figure 2 Ceiling unit (with rebated edges) 4.3 Gypsum tiles 4.3.1 General Gypsum elements square or rectangular, the surface of wh
44、ich may be plain, patterned or textured. The surface may be perforated to improve sound absorption properties. Perforated tiles may be backed with a protected mineral fibre mat. These tiles are used on metallic grids fixed to the substructure. Following types are defined according with the edges and
45、 profiles: 4.3.2 Square edge, type A: exposed grid (see Figure 3). EN 14246:2006 (E) 11 Figure 3 Square edge tiles 4.3.3 Rebated, bevelled edge, type B: semi-concealed grid (see Figure 4). Figure 4 Rebated, bevelled edge tiles 4.3.4 Kerfed, rebated edge, type C: concealed grid (see Figure 5). Figure
46、 5 Kerfed, rebated edge tiles 5 Requirements 5.1 Fire behaviour 5.1.1 Reaction to fire When the intended use of gypsum ceiling elements for suspended ceilings is for exposed situations in building construction work, gypsum ceiling elements are classified A.1 (no contribution to fire) without testing
47、 when they content less than 1 % by weight or volume (whichever is the more onerous) of organic material. EN 14246:2006 (E) 12 If they contain more than 1 % by weight or volume of organic material, they shall be tested in accordance with EN 13501-1. 5.1.2 Resistance to fire NOTE Resistance to fire i
48、s a characteristic dependant on an assembled system and not of the product in isolation. When required, the fire resistance of a system including gypsum ceiling elements shall be determined and classified in accordance with EN 13501-2. 5.2 Water vapour permeability (expressed as water vapour resista
49、nce factor) When the intended use of gypsum ceiling element is for moisture diffusion control, tabulated design values of water resistance factor given in EN 12524 may be used. 5.3 Flexural strength (expressed as flexural breaking load) Gypsum ceiling elements when tested according to the method given in 6.3, shall support without damage the following loads: gypsum ceiling tiles: 6 kg; gypsum units: 4 kg. 5.4 Acoustic properties 5.4.1 Direct airborne sound insulation NOTE Direct airborne sound
