HFM / GHP / GHFM / tlr

Heat Flow Meter / Guarded Heat Flow Meter / Guarded Hot Plate

Thermal conductivity and Thermal DiffusivityThermal diffusivity (a with the unit mm2/s) is a material-specific property for characterizing unsteady heat conduction. This value describes how quickly a material reacts to a change in temperature.thermal diffusivity are the most important thermophysical material parameters for the description of the heat transport properties of a material or component.

Based on an absolute measurement method, the GHP 456 Titan^® is the ideal instrument for the determination of Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity of insulations.

The Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity as another significant thermophysical property is determined by means of heat flow meters (HFM, GHFM) with the plate method for insulators.

NETZSCH instruments are based on the respective instrument and application standards for HFM (e.g. ASTM C518, ISO 8301, DIN EN 12667 EN 12, JIS A 1412, based on DIN EN 12664), GHFM (ASTM E1530) and for GHP (ISO 8302, ASTM C177, DIN EN 12939, DIN EN 12667, DIN EN 13163).

Thermal conductivity and diffusivity are the most important thermophysical material parameters for the description of the heat transport properties of a material or component. Usually, Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity is determined by Heat Flow Meters (HFM, GHFM) and Guarded Hot Plate (GHP).

For determining the Thermal ConductivityThermal conductivity (λ with the unit W/(m•K)) describes the transport of energy – in the form of heat – through a body of mass as the result of a temperature gradient (see fig. 1). According to the second law of thermodynamics, heat always flows in the direction of the lower temperature.thermal conductivity of pipe insulations NETZSCH offers the TLR 1000, a guarded hot pipe tester in accordance with DIN EN ISO 8497, DIN EN 1946-5, DIN 52613, ASTM C 534, and ASTM C 335.

The compact test chamber TDW 4040 is designed for testing brickwork in accordance with DIN EN 1934 (such as brick, lime sand brick, concrete, or aerated concrete), while TDW 4140 and TDW 4240 are designed for testing elements and components used in construction, such as windows, profiles, doors and domes. (Standards: DIN EN ISO 8990, DIN EN 1946-4, DIN EN ISO 12567, DIN EN 12412-2, ASTM C-1363)