BS EN 12939:2001 - Thermal performance of building materials and products. Determination of thermal resistance by means of guarded hot plate and heat flow meter methods. Thick products of high and medium thermal resistance

BS EN 12939:2001

Thermal performance of building materials and products. Determination of thermal resistance by means of guarded hot plate and heat flow meter methods. Thick products of high and medium thermal resistance

Status : Current, Under review   Published : January 2001

Format
PDF

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HARDCOPY



This standard gives the procedures to determine the thermal resistance of products the thicknesses of which exceed the maximum thickness for guarded hot plate or heat flow meter apparatus. In any case most of the procedures described in this standard require apparatus that allows tests on specimens up to 100 mm thick. This standard gives guidelines to assess the relevance of the thickness effect, i.e. to establish whether the thermal resistance of a thick product can or cannot be calculated as the sum of the thermal resistances of slices cut from the product, these guidelines complement the indications given in ISO 8302:1991 on the guarded hot plate apparatus.This standard describes testing conditions which prevent the onset of convection. which could take place in some products under the considered temperature differences and thicknesses.




Standard NumberBS EN 12939:2001
TitleThermal performance of building materials and products. Determination of thermal resistance by means of guarded hot plate and heat flow meter methods. Thick products of high and medium thermal resistance
StatusCurrent, Under review
Publication Date15 January 2001
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
ReplacesBS 874-2.1:1986, BS 874-2.2:1988
International RelationshipsEN 12939:2000
Amended ByAMD 14030
Corrigendum, December 2002
DescriptorsMathematical calculations, Thermal transmittance, Thermal properties of materials, Thermal conductivity, Thermal measurement, Thickness, Thermal resistance, Heat-resistant materials, Construction materials
ICS91.100.60
Title in FrenchPerformance thermique des materiaux et produits pour le batiment. Determination de la resistance thermique par la methode de la plaque chaude gardee et la methode fluxmetrique. Produits epais de haute et moyenne resistance thermique
Title in GermanWaermetechnisches Verhalten von Baustoffen und Bauprodukten. Bestimmung des Waermedurchlasswiderstandes nach dem Verfahren mit dem Plattegeraet und dem Waermestrommessplatten-Geraet. Dicke Produkte mit hohem und mittlerem Waermedurchlasswiderstand
CommitteeB/540
ISBN0 580 36718 5
PublisherBSI
FormatA4
DeliveryYes
Pages36
File Size527 KB
Price£214.00


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