CEN/TC 241/WG 1 - Powders

This document describes the test methods for binders for floor screeds based on calcium sulphate specified in EN 13454-1. In addition, some of the described test methods apply for factory made mixtures for floor screeds based on calcium sulphate specified in EN 13813.
This document describes reference test methods. If methods and conditions other than these are used, it is important to show that they give results equivalent to those given by the reference methods. In the event of a dispute, only the reference test method is used.
This document describes test methods for binders and made mixtures where the principal active component is calcium sulphate.

This European Standard describes the reference test methods for all gypsum binders and gypsum plasters covered by EN 13279-1.

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.

This European Standard specifies the characteristics and performance of powder products based on gypsum binder for building purposes. This includes premixed gypsum building plasters for plastering of walls and ceilings inside buildings where they are applied as a finishing material which can be decorated. These products are specially formulated to meet their application requirements by the use of additives/admixtures, aggregates and other binders. Gypsum and gypsum based building plasters for manual and mechanical applications are included.
This European Standard also applies to gypsum binders both for direct use on site and for further processing into gypsum blocks, gypsum plasterboards, gypsum boards with fibrous reinforcement, gypsum fibrous plasterwork and gypsum ceiling elements. Gypsum mortar for internal not load bearing partitions not exposed to water is also included.
Calcium sulfate used as binder for floor screeds is not covered by this European Standard.
This European Standard defines the reference tests for technical characteristics and provides for the evaluation of conformity of the products covered by this European Standard.
Building lime, as calcium hydroxide, can be used as an additional binder together with gypsum binder. If gypsum binder is the principle active binding component in a plaster then this plaster is covered by this European Standard. If building lime is the principle active binding component in a plaster then the plaster is covered by EN 998-1.

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 product 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 ceilings: 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 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 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.

TC - Correction of equations in 6.8.4 (E/F/D) and 6.9.2 (E/F) and designation in Table ZA.1 (E/F)

This European Standard specifies the requirements and test methods of metal lath and beads for internal plaster-ing.
This European Standard covers metal lath intended to be used for fixing to structures or solid backgrounds to pro-vide a key to hold the plaster in position. Metal lath is used vertically to support linings for walls, partitions and col-umns and horizontally to support linings for ceilings and beams. Used in this way it enables fire protecting plaster-ing systems to be provided.
This European Standard covers metal beads intended to be used to improve the protection of corners and also provide features to the internal finish of the construction as well as metal beads intended to be used as depth gauge beads and movement or expansion beads. They also contribute to fire protection.

This European Standard specifies the requirements and test methods of metal lath and beads for external render-ing.
This European Standard covers metal lath intended to be used for fixing to structures or solid backgrounds to pro-vide a key to hold the plaster in position. Used in this way it enables fire protecting plastering systems to be pro-vided.
This European Standard covers metal beads intended to be used to improve the protection of external angles and also provide features to the external finish of the construction and which can also be used as movement or expan-sion beads. They also contribute to fire protection.

This European Standard specifies the characteristics and performance requirements for fibrous gypsum plaster cast-sections, rigid sheets, rigid tiles - made by various techniques in factories or workshops.  
This European Standard is applicable to:
-   conventional series produced products;
-   series produced products with varying properties ;
-   individual (and non-series) produced products, insofar required to be CE marked.
See 4.1 and annex D concerning the classification of the fibrous gypsum plaster casts.
This European Standard covers the following performance characteristics of the fibrous gypsum plaster casts : reaction to fire, thermal resistance, as well as resistance to impact by a hard steel ball and cohesion.
The following performance characteristics are linked to systems assembled with fibrous gypsum plaster casts : fire resistance, impact resistance, direct airborne sound insulation, acoustic absorption to be measured according to the corresponding European test methods. If required, tests have to be done on assembled systems simulating the end use conditions.
This European Standard defines the reference test methods for the technical specifications.
This European Standard also covers additional technical characteristics of fibrous gypsum plaster casts that are of importance for use and acceptance of the products by the building industry and the reference tests for these characteristics.
It provides for assessment of conformity of the products to this standard.
This standard does not apply to:
   i)      fibre reinforced gypsum sheet products (see pr EN 15283);
       ii)       gypsum elements for suspended (see EN 14246);
   iii)   solid casts;
   iv)   run fibre reinforced products;
   v)    plaster based stucco casts, carton pierre decors, resin decors;
   vi)    moulds, models and mock-ups made of fibrous gypsum plaster;
   vii)   fibrous gypsum plaster casts that, by nature, are not intended to be fastened in position;
   viii)   fibrous gypsum plaster casts fo

This document applies to calcium sulphate binders and composite binders made of calcium sulphate used for the manufacture of floor screeds for interior use in buildings. It also includes requirements for factory made mixtures made of calcium sulphate used for the manufacture of floor screeds which are given in EN 13813. This document does not cover the application of floor screeds. Floor screeds made with products covered by this document may contribute to thermal and sound insulation and fire protection of the floor.

This European Standard specifies the characteristics and performance of gypsum based adhesives used for assembling gypsum blocks or other gypsum units. It covers the following performance characteristics related to the essential requirements :
- reaction to fire ;
- release of dangerous substances ;
measured according to the corresponding European test methods.
It defines the reference tests for technical specifications.
It provides for the evaluation of conformity of the product to this European Standard.
This European Standard covers also additional technical characteristics that are of importance for the use and acceptance of the product by the Building Industry :
- direct airborne sound insulation ;
- bond strength ;
- thermal resistance calculated with thermal conductivity values from the Table 1 (see 5.3.2).

This document specifies the requirements and test methods of metal lath and beads for external rendering.
This document covers metal lath intended to be used for fixing to structures or solid backgrounds to provide a key to hold the plaster in position. Used in this way it enables fire protecting rendering systems to be provided.
This document covers metal beads intended to be used to improve the protection of external angles and also provide features to the external finish of the construction and which can also be used as movement or expansion beads. They also contribute to fire protection.

This document specifies the characteristics and performance of powder products based on gypsum binder for building purposes. This includes premixed gypsum building plasters for plastering of walls and ceilings inside buildings where they are applied as a finishing material which can be decorated. These products are specially formulated to meet their application requirements by the use of additives/admixtures, aggregates and other binders. Gypsum and gypsum based building plasters for manual and mechanical applications are included.
This document also applies to gypsum binders both for direct use on site and for further processing into gypsum blocks, gypsum plasterboards, gypsum boards with fibrous reinforcement, gypsum fibrous plasterwork and gypsum ceiling elements. Gypsum mortar for internal not load bearing partitions not exposed to water is also included.
Calcium sulfate used as binder for floor screeds is not covered by this document.
This document defines the reference tests for technical characteristics and provides for the assessment and verification of constancy of performance of the products covered by this European Standard.
Building lime, as calcium hydroxide, can be used as an additional binder together with gypsum binder. If gypsum binder is the principle active binding component in a plaster then this plaster is covered by this European Standard. If building lime is the principle active binding component in a plaster then the plaster is covered by EN 998 1.

This document specifies the requirements and test methods of metal lath and beads for internal plastering.
This document covers metal lath intended to be used for fixing to structures or solid backgrounds to provide a key to hold the plaster in position. Metal lath is used vertically to support linings for walls, partitions and columns and horizontally to support linings for ceilings and beams. Used in this way it enables fire protecting plastering systems to be provided.
This document covers metal beads intended to be used to improve the protection of corners and also provide features to the internal finish of the construction as well as metal beads intended to be used as depth gauge beads and movement or expansion beads. They also contribute to fire protection.

This document applies to binders made of calcium sulphate used for the manufacture of floor screeds for interior use in buildings. This document does not cover the application of floor screeds. Floor screeds made with products covered by this document can contribute to thermal and sound insulation and fire protection of the floor.
This document specifies binders where the principal active constituent is calcium sulphate.
Factory made mixtures are covered by EN 13813 and are therefore not part of this document.

This document describes the reference test methods for all gypsum binders and gypsum plasters covered by prEN 13279-1.

This European Standard specifies the characteristics and performance of powder products based on gypsum binder for building purposes. This includes premixed gypsum building plasters for plastering of walls and ceilings inside buildings where they are applied as a finishing material which can be decorated. These products are specially formulated to meet their application requirements by the use of additives/admixtures, aggregates and other binders. Gypsum and gypsum based building plasters for manual and mechanical applications are included.
This European Standard also applies to gypsum binders both for direct use on site and for further processing into gypsum blocks, gypsum plasterboards, gypsum fibrous plasterwork and gypsum ceiling elements. Gypsum plaster for bricklaying is also included.
Calcium sulfate used as binder for floor screeds is not covered by this standard.
This European Standard defines the reference tests for technical characteristics and provides for the evaluation of conformity of the products covered by this European Standard.
Building lime, as calcium hydroxide, can be used as an additional binder together with gypsum binder. If gypsum binder is the principle active binding component in a plaster then this plaster is covered by this standard. If building lime is the principle active binding component in a plaster then the plaster is covered by EN 998-1.

This European Standard describes the test methods for binders, composite binders and factory made mixtures for floor screeds based on calcium sulfate specified in EN XXXX-1. This European Standard describes reference test methods. If other than these methods and conditions are used, it is necessary to show that they give results equivalent to those given by the reference methods. In the event of a dispute, only the reference test method is used.