SS-EN-12939 › 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
SS-EN-12939
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EDITION 1
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CURRENT
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This standard gives the procedures to determine the thermal resistance of products the thicknessesof which exceed the maximum thickness for guarded hot plate or heat flow meter apparatus. Inany case most of the procedures described in this standard require apparatus that allows tests onspecimens up to 100 mm thick.This standard gives guidelines to assess the relevance of the thickness effect, i.e. to establishwhether the thermal resistance of a thick product can or cannot be calculated as the sum of thethermal resistances of slices cut from the product, these guidelines complement the indicationsgiven in ISO 8302:1991 on the guarded hot plate apparatus.This standard describes testing conditions which prevent the onset of convection. which couldtake place in some products under the considered temperature differences and thicknesses.
To find similar documents by classification:
91.100.60 (Thermal and sound insulating materials)
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Designation Name
SS-EN 12939
Revision Level
EDITION 1
Status
Current
Publication Date
Dec. 22, 2000
Language(s)
English
Page Count
44
International Equivalent
EN 12939(IDT)