SIST EN 772-15:2000
(Main)Methods of test for masonry units - Part 15: Determination of water vapour permeability of autoclaved aerated concrete masonry units
Methods of test for masonry units - Part 15: Determination of water vapour permeability of autoclaved aerated concrete masonry units
This European Standard specifies a method of determining the steady state water vapour permeability of autoclaved aerated concrete masonry units at the upper and lower part of the hygroscopic range. The test method is limited to products from which disc shaped specimens of uniform thickness can be made. No requirements are given for conditioning of the specimens. However, it will take longer for the test arrangement to reach equilibrium if the specimens are not in an approximately air dry condition at the start of the test.
Prüfverfahren für Mauersteine - Teil 15: Bestimmung der Wasserdampfdurchlässigkeit von Porenbetonsteinen
Diese Europäische Norm legt ein Verfahren zur Bestimmung der Wasserdampfdurchlässigkeit von Mauersteinen aus Porenbeton im stationären Zustand im oberen und unteren Teil des hygroskopischen Bereichs fest. Das Prüfverfahren ist auf Produkte beschränkt, aus denen scheibenförmige Probekörper mit gleichbleibender Dicke hergestellt werden können. Bezüglich der Konditionnierung der Probekörper sind keine Anforderungen vorgegeben.
Méthodes d'essai des éléments de maçonnerie - Partie 15: Détermination de la perméabilité a la vapeur d'eau des éléments de maçonnerie en béton cellulaire autoclavé
La présente norme européenne décrit une méthode de détermination de la perméabilité à la vapeur d'eau, en régime permanent, des éléments de maçonnerie en béton cellulaire autoclavé aux extrémités inférieure et supérieure de la plage hygroscopique. La méthode d'essai est limitée aux produits dans lesquels il est possible de découper des éprouvettes en forme de disque. Aucune exigence quant au conditionnement des éprouvettes n'est spécifiée. Toutefois, les conditions d'essai d'équilibre seront plus longues à atteindre si les éprouvettes n'ont pas été conditionnées à l'air approximativement sec au début de l'essai.
Metode preskušanja zidakov - 15. del: Ugotavljanje prepustnosti pare zidakov iz avtoklaviranega celičastega betona
General Information
- Status
- Published
- Publication Date
- 31-Aug-2000
- Technical Committee
- CAA - Mineral binders and masonry
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Sep-2000
- Due Date
- 01-Sep-2000
- Completion Date
- 01-Sep-2000
- Directive
- 89/106/EEC - Construction products
Overview
EN 772-15:2000 is a CEN European Standard that specifies a laboratory test method to determine the steady state water vapour permeability of autoclaved aerated concrete (AAC) masonry units. The method targets measurements at the upper and lower parts of the hygroscopic range, providing a standardized way to quantify vapour transport through AAC units. The procedure applies only to products from which disc-shaped specimens of uniform thickness can be prepared. The standard does not prescribe specimen conditioning, but notes that tests take longer to reach equilibrium if specimens are not approximately air dry at the start.
Key Topics and Requirements
- Scope: Measurement of steady state water vapour permeability for AAC masonry units within the hygroscopic moisture range.
- Specimen geometry: Limited to products that allow extraction of disc-shaped specimens of uniform thickness.
- Hygroscopic range: Results relate to vapour transport at upper and lower hygroscopic conditions, relevant for typical moisture contents of AAC.
- Conditioning guidance: No mandatory conditioning protocol is specified in the standard; however, starting from an approximately air dry condition helps reach equilibrium faster.
- Limitations: Not applicable to masonry products that cannot yield suitable disc specimens; the method focuses on vapour permeability rather than capillary or bulk water transport.
Applications
- Product characterization: Provide vapour permeability data for AAC blocks and masonry units used in technical data sheets.
- Hygrothermal modelling: Supply input parameters for building performance simulations (moisture transport, condensation risk, indoor air quality).
- Specification and procurement: Enable architects, engineers, and specifiers to compare AAC products on the basis of standardized vapour diffusion performance.
- Quality control and R&D: Support manufacturers and testing laboratories in reproducible measurement of vapour transport properties during product development and production monitoring.
- Compliance and documentation: Help demonstrate conformity with project requirements or national regulations related to moisture performance.
Who Uses This Standard
- AAC manufacturers and product developers
- Independent testing laboratories and material characterization facilities
- Building physicists, hygrothermal modellers, and façade engineers
- Architects and specification writers concerned with moisture management
- Construction quality assurance and compliance teams
Related Standards
- EN 772 series - methods of test for masonry units (other parts address mechanical, dimensional and water-related properties)
- Standards and guides on hygrothermal performance and moisture transfer in building materials
Keywords: EN 772-15:2000, water vapour permeability, autoclaved aerated concrete, AAC, masonry units, hygroscopic range, vapour diffusion, test method, CEN.
Frequently Asked Questions
SIST EN 772-15:2000 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Methods of test for masonry units - Part 15: Determination of water vapour permeability of autoclaved aerated concrete masonry units". This standard covers: This European Standard specifies a method of determining the steady state water vapour permeability of autoclaved aerated concrete masonry units at the upper and lower part of the hygroscopic range. The test method is limited to products from which disc shaped specimens of uniform thickness can be made. No requirements are given for conditioning of the specimens. However, it will take longer for the test arrangement to reach equilibrium if the specimens are not in an approximately air dry condition at the start of the test.
This European Standard specifies a method of determining the steady state water vapour permeability of autoclaved aerated concrete masonry units at the upper and lower part of the hygroscopic range. The test method is limited to products from which disc shaped specimens of uniform thickness can be made. No requirements are given for conditioning of the specimens. However, it will take longer for the test arrangement to reach equilibrium if the specimens are not in an approximately air dry condition at the start of the test.
SIST EN 772-15:2000 is classified under the following ICS (International Classification for Standards) categories: 91.100.15 - Mineral materials and products; 91.100.30 - Concrete and concrete products. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 772-15:2000 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/BC/CEN/87/12. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 772-15:2000 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2000
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Methods of test for masonry units - Part 15: Determination of water vapour permeability
of autoclaved aerated concrete masonry units
Prüfverfahren für Mauersteine - Teil 15: Bestimmung der Wasserdampfdurchlässigkeit
von Porenbetonsteinen
Méthodes d'essai des éléments de maçonnerie - Partie 15: Détermination de la
perméabilité a la vapeur d'eau des éléments de maçonnerie en béton cellulaire
autoclavé
Ta slovenski standard je istoveten z: EN 772-15:2000
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
91.100.30 Beton in betonski izdelki Concrete and concrete
products
...
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