Fraunhofer Institute for Building Physics IBP
Fraunhofer IBP Fotografie Windkanal und Dämmtestprüfstand
Thermal conductivity by the guarded hot plate apparatus
Hygrothermics
| Measurement | Thermal conductivity λ, thermal resistance R, and thermal transmittance U |
| Standards | DIN EN 12664, DIN EN 12667, DIN EN 674, DIN 52612 |
| Measurement object |
Homogenous plates, inhomogeneous test specimens: porous, fibrous or granular materials, components laminated, profile plates, glazing elements, sections of building bricks |
Technical data
| Measuring surface | 100 mm × 100 mm, 150 mm × 150 mm and 500 mm × 500 mm |
| Test specimen dimensions | Square specimens with side lengths between 120 and 900 mm and thicknesses between 5 and 300 mm |
| Mean specimen temperature | −160 up to +250 °C, depending on the equipment |
| Measuring range | Thermal conductivity between 0.01 and 2.0 W/(m∙K) |
Special features
| Measuring setup | Horizontal and vertical direction |
| Ambient conditions | Measurements in vacuum or in a protective atmosphere possible |
Recognitions
The test laboratory is recognized by the Deutsches Institut für Bautechnik (DIBt) as a testing facility under applicable building regulations LBO No. BWU10 and as a Notified Body No. 1004 to the terms of the Regulation of Construction Products (EU-BauPVO). It has been granted flexible accreditation under DIN EN ISO/IEC 17025 by the Deutsche Akkreditierungsstelle GmbH (DAkkS) under accreditation No. D‑PL‑11140‑11-04.