EN ISO 22007-6:2015 PDF

Scope: This part of ISO 22007 specifies a temperature adjustment method for measuring thermal conductivity. A generated temperature change is smaller than 1 K, so a double lock-in method is applied to amplify the small temperature modulation. ISO 22007-3 specifies one of the temperature adjustment methods in which the phase shift in the thermally thick state is measured, kd >> 1 [k = (/2)1/2,: angular frequency of the temperature wave,: thermal diffusivity and d: thickness of the sample body]. In this state, the support material has no influence on the results of the phase shift at the sensor, where the temperature wave decays exponentially. On the other hand, if kd

EN ISO 22007-6:2015 Referenced Document

ISO 22007-1:2009 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 1: General principles
ISO 22007-3:2008 Plastics — Determination of thermal conductivity and thermal diffusivity — Part 3: Temperature wave analysis method
ISO 291:2008 Plastics - Standard atmospheres for conditioning and testing
ISO 472:2013 Plastics - Vocabulary
ISO 80000-5:2007 Quantities and units - Part 5: Thermodynamics
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
ISO/TR 22007-5:2011 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 5: Results of interlaboratory testing of poly(methyl methacrylate) samples

2015 EN ISO 22007-6:2015 Plastics - Determination of thermal conductivity and thermal diffusivity - Part 6: Comparative method for low thermal conductivities using a temperature-modulation technique