SIST EN 12859:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Gips-Wandbauplatten - Begriffe, Anforderungen und PrüfverfahrenCarreaux de plâtre - Définitions, spécifications et méthodes d'essaiGypsum blocks - Definitions, requirements and test methods91.100.10Cement. Mavec. Apno. MaltaCement. Gypsum. Lime. Mortar01.040.91Gradbeni materiali in gradnja (Slovarji)Construction materials and building (Vocabularies)ICS:Ta slovenski standard je istoveten z:EN 12859:2011SIST EN 12859:2011en,fr,de01-junij-2011SIST EN 12859:2011SLOVENSKI
STANDARDSIST EN 12859:20081DGRPHãþD



SIST EN 12859:2011



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12859
February 2011 ICS 91.100.10 Supersedes EN 12859:2008English Version
Gypsum blocks - Definitions, requirements and test methods
Carreaux de plâtre - Définitions, spécifications et méthodes d'essai
Gips-Wandbauplatten - Begriffe, Anforderungen und Prüfverfahren This European Standard was approved by CEN on 2 January 2011.
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, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12859:2011: ESIST EN 12859:2011



EN 12859:2011 (E) 2 Contents Page Foreword .4Introduction .51Scope .62Normative references .63Terms, definitions and symbols .73.1Terms and definitions .73.2Symbols .94Requirements . 104.1Fire behaviour . 104.1.1Reaction to fire . 104.1.2Fire resistance . 104.2Direct airborne sound insulation . 104.3Thermal properties . 104.3.1Thermal resistance . 104.3.2Thermal conductivity . 104.4Types of gypsum blocks . 114.4.1General . 114.4.2Visual identification of gypsum blocks by pigmentation . 114.5Release of dangerous substances . 124.6Dimensions and tolerances . 124.6.1Dimensions . 124.6.2Tolerances . 124.7Flatness of gypsum blocks . 134.8Dry density and tolerance . 134.8.1Classes of density . 134.8.2Tolerance . 134.9Surface mass of gypsum blocks and tolerance . 134.10Bending strength . 134.11Moisture content . 144.12pH . 154.13Water absorption capacity . 154.13.1Classification . 154.13.2Requirement . 154.14Surface hardness . 155Test methods . 155.1Sampling . 155.2Preparation of test pieces . 155.3Measurement of dimensions . 165.3.1Thickness . 165.3.2Length . 165.3.3Height . 185.3.4Cavity gypsum blocks . 185.4Flatness of gypsum blocks . 195.4.1Principle . 195.4.2Apparatus . 195.4.3Procedure . 195.4.4Expression of results . 195.5Mass of gypsum blocks . 195.5.1Principle . 195.5.2Apparatus . 195.5.3Procedure . 19SIST EN 12859:2011



EN 12859:2011 (E) 3 5.5.4Expression of results . 195.6Density of gypsum blocks . 195.6.1Principle. 195.6.2Apparatus . 195.6.3Procedure . 205.6.4Expression of results . 205.7Bending strength . 205.7.1Principle. 205.7.2Apparatus . 205.7.3Procedure . 215.7.4Expression of results . 215.8Moisture content . 215.8.1Principle. 215.8.2Expression of results . 215.9Water absorption capacity (hydrophobic gypsum blocks only) . 225.9.1Principle. 225.9.2Apparatus . 225.9.3Preparation of the test pieces . 225.9.4Procedure . 225.9.5Expression of results . 225.10pH measurement . 225.10.1Principle. 225.10.2Apparatus . 225.10.3Sampling. 235.10.4Procedure . 235.10.5Expression of results . 235.11Test reports . 236Evaluation of conformity . 236.1General . 236.2Initial type testing . 236.3Factory production control. 247Designation of gypsum blocks . 248Marking, labelling and packaging . 25Annex A (normative)
Sampling for independent acceptance testing carried out by a third party . 26A.1General . 26A.2Sampling procedure . 26Annex B (informative)
Surface hardness . 28B.1General . 28B.2Requirements . 28B.3Test method . 28Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 30ZA.1Scope and relevant characteristics . 30ZA.2Procedure for attestation of conformity of gypsum blocks . 31ZA.3CE Marking and labelling . 32Bibliography . 35 SIST EN 12859:2011



EN 12859:2011 (E) 4 Foreword This document (EN 12859:2011) 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 by endorsement, at the latest by August 2011, and conflicting national standards shall be withdrawn at the latest by August 2011. 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 12859:2008. 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 EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This European Standard includes:  A normative annex concerning sampling for independent test;  An informative annex recommending requirements and test method for measuring surface hardness. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 12859:2011



EN 12859:2011 (E) 5 Introduction Diagram 1 shows the relationship between this standard and the package of standards prepared to support the family of gypsum products.
Figure 1 — Family of gypsum binders and gypsum products SIST EN 12859:2011



EN 12859:2011 (E) 6 1 Scope This European Standard specifies the characteristics and performance of gypsum blocks with smooth faces for which the main intended uses are construction of non-load bearing partitions or independent wall linings and the fire protection of columns, lift shafts, shafts for services, etc. 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 use and acceptance of the product by the construction industry:  convenience classes for density;  convenience classes for pH. 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 storey height units. 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 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from 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 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne sound insulation (ISO 717-1:1996)1)
1) This reference is impacted by the stand-alone amendment EN ISO 717-1:1996/A1:2006. SIST EN 12859:2011



EN 12859:2011 (E) 7 EN ISO 6946:2007, Building components and building elements — Thermal resistance and thermal transmittance — Calculation method (ISO 6946:2007) EN ISO 10140-3, Acoustics — Laboratory measurement of sound insulation of building elements — Part 3: Measurement of impact sound insulation (ISO 10140-3:2010) EN ISO 10456:2007, Building materials and products — Hygrothermal properties — Tabulated design values and procedures for determining declared and design thermal values (ISO 10456:2007) 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 gypsum block factory-made building element that is produced from calcium sulphate and water, that may incorporate fibres, fillers, aggregates and other additives as far as they are not classified as dangerous substances in accordance with European regulations, and that may be coloured by pigmentation in accordance with the provisions of this standard NOTE The gypsum block is a rectangular parallelepiped with tongues and grooves on at least two of their opposite edges. 3.1.2 solid gypsum block gypsum block manufactured without cavities 3.1.3 cavity gypsum block gypsum block which incorporates preformed cavities 3.1.4 preformed cavity formed cavity parallel to the faces which may or may not pass completely through the block and which may run parallel with the height or the length
NOTE See example on Figure 2. 3.1.5 face plain and smooth surface intended to provide the finish of a partition
NOTE See Figure 2. 3.1.6 edge extreme side of the gypsum block having tongues and grooves
NOTE See Figure 2. 3.1.7 thickness distance between the two faces of a gypsum block
NOTE See Figure 2. SIST EN 12859:2011



EN 12859:2011 (E) 8 3.1.8 length greatest distance between two edges of a gypsum block
NOTE See Figure 2. 3.1.9 height smaller distance between two edges of a gypsum block
NOTE See Figure 2. SIST EN 12859:2011



EN 12859:2011 (E) 9
Key 1 Preformed cavities 2 Face 3 Thickness 4 Height 5 Length Figure 2 — Gypsum block 3.2 Symbols For the purposes of this document, the following symbols apply: ρ gross dry density, in kilograms per cubic metre (kg/m3) λ thermal conductivity, in Watts per metre per Kelvin (W/m·K) SIST EN 12859:2011



EN 12859:2011 (E) 10 λ 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) R2F reaction to fire FR fire resistance R direct airborne sound insulation 4 Requirements 4.1 Fire behaviour 4.1.1 Reaction to fire Gypsum blocks are classified in Euroclass A.1 (no contribution to fire) without testing when they contain less than 1 % by weight or volume (whichever is the more onerous) of organic material. Gypsum blocks with 1 % or more, by weight or volume of organic material, shall be tested and classified in accordance with EN 13501-1. 4.1.2 Fire resistance Resistance to fire is a property of an assembled system and not of the product itself. When relevant, the fire resistance of a system including gypsum blocks assembled with adhesive for gypsum blocks shall be determined and classified in accordance with EN 13501-2. 4.2 Direct airborne sound insulation Direct airborne sound insulation is a property of an assembled system and not of the product itself. When relevant, the direct airborne sound insulation of a system including gypsum blocks assembled with adhesive for gypsum blocks shall be determined in accordance with EN ISO 10140-3 and EN ISO 717-1. 4.3 Thermal properties 4.3.1 Thermal resistance When the intended use of gypsum blocks is to contribute to thermal resistance in building construction works, the thermal resistance is calculated using the formula given in EN ISO 6946:2007. The values of thermal conductivity necessary for this calculation are given in 4.3.2 and thickness values to be used shall be measured according to 5.3.1. 4.3.2 Thermal conductivity Design values of the thermal conductivity of hardened gypsum plaster used in the manufacture of gypsum blocks are given in Table 1. SIST EN 12859:2011



EN 12859:2011 (E) 11
Table 1 — Design values of thermal conductivity of gypsum plaster ρρρρ
λλλλ 23-50 kg/m3 W/(m.K) 600 0,18 700 0,22 800 0,26 900 0,30 1 000 0,34 1 100 0,39 1 200 0,43 1 300 0,47 1 400 0,51 1 500 0,56
The values given in Table 1 are taken from EN ISO 10456:2007. Design values concern dry material used inside. When the material is wet, adjust these values using EN ISO 10456. 4.4 Types of gypsum blocks 4.4.1 General Gypsum blocks are manufactured in two types of strength class A and R (see 4.10). Gypsum blocks are manufactured in three types of density Low, Medium and Dense (see 4.8). Gypsum blocks are manufactured in three classes of water absorption H1, H2 and H3 (See 4.13). 4.4.2 Visual identification of gypsum blocks by pigmentation 4.4.2.1 General Visual identification of the different types of gypsum blocks follows the two driteria:  density;  water absorption. 4.4.2.2 Pigmentation of gypsum blocks following density classes Gypsum blocks are manufactured in three classes of density (see 4.8). SIST EN 12859:2011



EN 12859:2011 (E) 12 Table 2 — Density classes, colour of gypsum blocks and designation Colour Density Designation Rosa a High D Natural Medium M Yellow a Low L a The visual identification by colour of the class for the density applies for the class H3 only (Class of water absorption).
4.4.2.3 Pigmentation of gypsum blocks following water absorption Gypsum blocks are manufactured in three classes of water absorption (see 4.13). Table 3 — Classes of water absorption, colour of gypsum blocks and designation Colour Water absorption Designation Natural No requirement H3 a Blue ≤ 5 % H2 Green ≤ 2,5 % H1 a The visual identification by colour of the class for the density applies for the class H3 only (Class of water absorption).
4.5 Release of dangerous substances NOTE For CE marking purposes, see Annex ZA.1, Note. 4.6 Dimensions and tolerances 4.6.1 Dimensions Gypsum block dimensions are determined by the thickness, the length and the height. The thickness shall be at least 50 mm and shall not exceed 150 mm. The length shall not exceed 1 000 mm. The height shall be determined in conjunction with the length so that the surface area of a block is at least 0,10 m2. NOTE Preferred dimensions are for thickness: 50 mm, 60 mm, 70 mm, 80 mm, 100 mm, for length : 666 mm and for height: 500 mm. In cavity gypsum blocks, the wall gypsum plaster shall be at least 15 mm thick throughout the block. The total cavity volume shall not exceed 40 %. 4.6.2 Tolerances The dimensions of individual blocks, when measured in accordance with 5.3, shall have tolerances as follows:  thickness: ± 0,5 mm;  length: ± 5 mm; SIST EN 12859:2011



EN 12859:2011 (E) 13  height: ± 2 mm. 4.7 Flatness of gypsum blocks The flatness of individual blocks when measured in accordance with 5.4 shall have a deviation not greater than 1 mm. 4.8 Dry density and tolerance 4.8.1 Classes of density The gross dry density of the hardened gypsum of the solid part of the block, which is the mean gross density of the specified number of samples in accordance with 5.1 and measured in accordance with 5.6, shall be as follows:  High density (D) 1 100 ≤ ρ
≤ 1 500 kg/m3  Medium density (M) 800 ≤ ρ < 1 100 kg/m3  Low density (L) 600 ≤ ρ < 800 kg/m3 4.8.2 Tolerance The average gross dry density within each class shall not deviate by more than 5 % from the average value measured in accordance with 5.6. 4.9 Surface mass of gypsum blocks and tolerance The producer declares the surface mass (mass per square metre) of his gypsum blocks. When the mass of gypsum blocks is determined in accordance with 5.5 and their surface calculated in accordance with 5.3.2 and 5.3.3, the average surface mass of gypsum blocks shall not deviate by more than 5 % from the declared surface mass. 4.10 Bending strength Gypsum blocks of type A shall have a bending strength appropriate to their use, and for this, when tested in accordance with 5.7, they shall withstand the load given in Table 4a). In special cases gypsum blocks may be required having an enhanced strength, gypsum blocks of type R. These gypsum blocks shall withstand the load given in Table 4b). SIST EN 12859:2011



EN 12859:2011 (E) 14 Table 4a) — Breaking loads of gypsum blocks of type A Gypsum blocks equal or longer than 650 mm with a height of 500 mm a
Minimum average breaking load kN Solid blocks (medium and high density) Thickness in mm: 50 60 70 80 100
1,7 1,9 2,3 2,7 4,0 Cavity and low density blocks (all thicknesses) 1,7 a For gypsum blocks shorter than 650 mm and/or with a height different to 500 mm, the values in the second column shall be amended in the ratio of the spans and/or heights (see 5.7.4).
Table 4b) —
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