BS EN 12404:2020 pdf free.Durability of wood and wood-based products – Assessment of the effectiveness of masonry fungicide to prevent growth into wood of Dry Rot Serpula lacrymans (Schumacher ex Fries) S.F. Gray – Laboratory method.
BS EN 12404 1 Scope This document spetfies a method for determining the performance of a preservative, applied to the upper surface of the mortar test specimens, in preventing the growth of dry rot through the treated mortar when exposed to the test fungus.
This method is only aplicable to masonry fungicides appled as a true solution of the preservative in water or dilute oil in water emulsion. It is not applicable to rods, pastes and other similar preservative types, This method is applicable to preservatives applied to masonry by brushing, spraying and/or injection technlques or mixed into rendering and plastering mortar for masonry.
2 Normative references The fllowing documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references. the latest edition of the referenced document (including any amendments) aplies. EN 113:1996. Wood preservatives – 一Test method for determining the protective efectvemesse against wood destroying basidiomycetes – – Determination of the toxic values EN 413-1. Masonry cement一Part 1: Composition, specifcatiors and conformipy criteria EN 459-1. Building lime一Part 1: Definitions, specificotors and conformity criterla EN 599-1, Durobilty of wood and wod-based products – – ffcacy of preventive wood preservatves as determined by bilogical tests一Part 1: Sperification according to use cliass EN IS0 3696. Water for analytical laboratory use一Specification and test methods (IS0 3696) 3Terms and definitions For the purposes of this document, the following terms and definitions apply. ISo and IEC maintain terminological databases for use in standardixation at the following addresses: IEC Electropedia: available at ht:/wwwecopedia.org. 150 Online browsing platorm: awailable at htst///w iso.org/obp
3.1 masonry fungiclde fungicidal/fungistatic product applied to masonry and other mineral construction materials to prevent
the growth of dry rot through or over the treated material 3.2 performance behaviour of the preservative product in terms of its ffectiveness in test preservative formulated masonry fungicide in the form received frorm the supplier for the test 3.4 supplier sponsor of the test.BS EN 12404 pdf download.