SIST EN 12859:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gypsum blocks - Definitions, requirements and test methodsBloki iz mavca - Definicije, zahteve in metode preskušanjaCarreaux de plâtre - Définitions, spécifications et méthodes d'essaiGips-Wandbauplatten - Begriffe, Anforderungen und Prüfverfahren91.100.10Cement. Mavec. Apno. MaltaCement. Gypsum. Lime. Mortar01.040.91Gradbeni materiali in gradnja (Slovarji)Construction materials and building (Vocabularies)ICS:SIST EN 12859:2002enTa slovenski standard je istoveten z:EN 12859:200101-april-2002SIST EN 12859:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12859June 2001ICS 01.040.91; 91.100.10English versionGypsum blocks - Definitions, requirements and test methodsCarreaux de plâtre - Définitions, spécifications et méthodesd'essaiGips-Wandbauplatten - Begriffe, Anforderungen undPrüfverfahrenThis European Standard was approved by CEN on 7 January 2001.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 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12859:2001 E

Page 2EN 12859:2001ContentsPageForeword.4Introduction.51Scope.62Normative references.63Terms, definitions and symbols.73.1Terms and definitions.73.2Symbols.84Requirements.94.1Fire behaviour.94.2Direct airborne sound insulation.94.3Thermal properties.94.4Types of gypsum blocks.104.5Release of dangerous substances.104.6Dimensions and tolerances.104.7Flatness of gypsum blocks.114.8Dry density and tolerance.114.9Surface mass of gypsum blocks and tolerance.114.10Bending strength.124.11Moisture content.124.12pH.124.13Water absorption capacity (hydrophobic gypsum blocks only).134.14Surface hardness.135 Test methods.135.1Sampling.135.2Preparation of test pieces.135.3Measurement of dimensions.135.4Flatness of gypsum blocks.175.5
Mass of gypsum blocks.175.6Density of gypsum blocks.185.7Bending strength.195.8Water absorption capacity (hydrophobic gypsum blocks only).205.9Moisture content.215.10pH measurement.215.11Test reports.226 Evaluation of conformity.226.1General.226.2Initial type testing.226.3Factory production control.227 Designation of gypsum blocks.238 Marking, labelling and packaging.24Annex A (normative) Sampling for independent acceptance testing carried out by thepurchaser.25

Page 3EN 12859:2001Annex B (informative) Surface hardness.27Annex C (informative) Visual identification by coloration of gypsum blocks.29Annex ZA (informative) Clauses of this European Standard addressing the provisions of theEU Construction Products Directive.30Bibliography.34

Page 4EN 12859:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 241 "Gypsum and gypsumbased 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 identicaltext or by endorsement, at the latest by December 2001, and conflicting national standards shall bewithdrawn at the latest by March 2003.This European Standard has been prepared under a mandate given to CEN by the European Commission andthe 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 standard.This European Standard includes :- a normative annex concerning sampling for independent test ;- an informative annex recommending requirements and test method for measuring surface hardness ;- an infomative annex for a visual identification by coloration of gypsum blocks.According to the CEN/CENELEC Internal Regulations, the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and the United Kingdom.

Page 5EN 12859:2001IntroductionDiagram 1 shows the relationship between this standard and the package of standards prepared to supportthe family of gypsum products.Diagram 1 - Family of gypsum binders and gypsum productsGypsum binders for furtherdry powder products(A1)Gypsum binders for directuse on site(A2)Gypsum binders for furtherprocessing e.g.- blocks- plasterboards- ceiling elements- etc.(A3)Gypsum plasters(B1 to B8)Gypsum plasters for specialpurposes(C1 to C6)Other dry powder productse.g.- jointing- adhesives- compounds- etcproducts not covered by any European Standardproducts covered by a European Standardproducts covered by this European StandardRaw gypsum

Page 6EN 12859:20011ScopeThis European Standard specifies the characteristics and performance of gypsum blocks with smooth facesfor which the main intended uses are construction of non-load bearing partitions or independent wall liningsand the fire protection of columns, lift shafts, etc. The gypsum blocks are not used to build ceilings.It covers the following performance characteristics related to the essential requirements :- reaction to fire ;- resistance to fire ;- direct airborne sound insulation ;- release of dangerous substances ;to be measured according to the corresponding european test methods, as well as :- thermal resistance to be calculated from the thermal conductivity values given in 4.3.2.It describes the reference tests for technical specifications.This European Standard covers also additional technical characteristics that are of importance for the useand acceptance of the product by the construction industry ;- convenience class for density ;- convenience class for pH ;- surface hardness.It provides for the evaluation of conformity of the product to this European Standard.This European Standard does not cover gypsum blocks of thickness less than 50 mm or gypsum storeyheight units.2Normative referencesThis 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 listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies (including amendments).EN 12524, Building materials and products - Hygrothermal properties - Tabulated design valuesprEN 13501-1:2000, Fire classification of construction products and building elements - Part 1 :Classification using data from reaction to fire testsprEN 13501-2:1999, Fire classification of construction products and building elements - Part 2 :Classification using data from fire resistance tests (excluding products for use in ventilation systems)

Page 7EN 12859:2001EN ISO 140-3, Acoustics - Measurement of sound insulation in buildings and of building elements -Part 3 : Laboratory measurements of airborne sound insulation of building elements (ISO 140-3:1995)EN ISO 717-1, Acoustics - Rating of sound insulation in buildings and of building elements - Part 1 :Airborne sound insulation (ISO 717-1:1996)EN ISO 6946, Building components and building elements - Thermal resistance and thermaltransmittance - Calculation method (ISO 6946:1996)EN ISO 10456, Building materials and products – Procedures for determining declared and design thermalvalues (ISO 10456:1999)3 Terms, definitions and symbols3.1Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply :3.1.1gypsum blockfactory made building element produced from calcium sulphate and water. It may incorporate fibres, fillers,aggregates and other additives as far as they are not classified as dangerous substances in accordance withEuropean regulations. It may be coloured by pigmentation.NOTE
The gypsum block is a rectangular parallelopiped with tongues and grooves on at least two oftheir opposite edges.3.1.2solid gypsum blockgypsum block manufactured without cavities.3.1.3cavity gypsum blockgypsum block which incorporate preformed cavities.3.1.4preformed cavityformed cavity parallel to the faces which may or may not pass completely through the block. It may runparallel with the height or the length (see Figure 1).3.1.5faceplain and smooth surface intended to provide the finish of a partition (see Figure 1).3.1.6edgeextreme side of the gypsum block having tongues and grooves (see Figure 1).3.1.7thicknessdistance between the two faces of a gypsum block (see Figure 1).

Page 8EN 12859:2001Key1 Preformed cavities2 Face3 Thickness4 Height5 LengthFigure 1 - Gypsum block3.2SymbolsFor the purposes of this European Standard, the following symbols apply ::gross dry density, in kilograms per cubic metre (kg/m³) ;:thermal conductivity, in Watts per metre per Kelvin (W/m·k) ; 23-50:thermal conductivity of the hardened plaster when in equilibrium at 23 °C and 50 %relative humidity, in Watts per metre per Kelvin (W/m·k) ;M:mass of the gypsum block in kilograms (kg).

Page 9EN 12859:20014Requirements4.1Fire behaviour4.1.1
Reaction to fireGypsum blocks are classified in Euroclass A.1 (no contribution to fire) without testing when they containless than 1 % by weight or volume (whichever is the more onerous) of organic material.If they contain 1 % or more, by weight or volume of organic material, they shall be determined andclassified in accordance with prEN 13501-1:2000.4.1.2Fire resistanceResistance to fire is a property of an assembled system and not of the product itself.When relevant, the fire res
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