BS EN 14496:2017 pdf download.Gypsum based adhesives for thermal/acoustic insulation composite panels and gypsum boards – Definitions, requirements and test methods.
4 Requirements 4.1 Fire behaviour 4.1.1 Reaction to fire Gypsum building plaster is the main component of gypsum based adhesives. Therefore, gypsum based adhesives are classified 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 (Commission Decision 96/603/EEC as amended). If they contain 1 % or more by weight or volume of organic material, they shall be determined and classified in accordance with EN 13501-1. When testing in EN 13823 is required, gypsum based adhesives shall be tested in their end use conditions. 4.1.2 Fire resistance NOTE Resistance to fire is a characteristic dependant on an assembled system and not of the product in isolation. When required, the fire resistance of a system including gypsum based adhesives for thermal/acoustic insulation composite panels shall be determined and classified according to EN 13501-2.4.2 Bond strength The bond strength of the adhesive determined as described in 5.6 shall not be less than 0,06 MPa. 4.3 Dangerous substances National regulations on dangerous substances may require verification and declaration on release, and sometimes content, when construction products covered by this standard are placed on those markets. In the absence of European harmonized test methods, verification and declaration on release/content should be done taking into account national provisions in the place of use. NOTE An informative database covering European and national provisions on dangerous substances is available at the Growth website on EUROPA accessed through: https://ec.europa.eu/growth/tools-databases/cp- ds 4.4 Calcium sulfate content The calcium sulfate content of the powder as a percentage by mass of the product shall not be less than 30 % when calculated from the result of the test carried out in accordance with 5.2. 4.5 End of utilization time The end of utilization time is determined as described in 5.5 shall be greater than the time declared by the producer.
6 Assessment and verification of constancy of performance – AVCP 6.1 General The compliance of gypsum based adhesives for thermal/acoustic insulation composite panels and gypsum boards with the performances declared by the manufacturer in the DoP shall be demonstrated by: — determination of the product type; — Factory Production Control by the manufacturer (FPC). For the purposes of testing, gypsum based adhesives for thermal/acoustic insulation composite panels and gypsum boards may be grouped into families, where it is considered that the selected property is common to all gypsum based adhesives for thermal/acoustic insulation composite panels and gypsum boards within that family. The decision on those products or properties which fall within a family shall be made by the manufacturer. 6.2 Type testing 6.2.1 General Sampling and testing shall be in accordance with Clause 5. The results of all type tests shall be recorded and held by the manufacturer for at least 10 years.BS EN 14496 pdf download.