scope:

Provides specific technical criteria for the assessment of laboratories to undertake steady-state heat transfer property measurements by the heat flow meter method according to prEN 12667 and prEN 12664. It complements the common criteria in part 1. Guidance is given on the organization and contents of the equipment manual, the calibration and maintenance files and the measurement procedure document. It provides information on mandatory equipment performance specifications, equipment description and on calculations for the equipment design and error analysis. It provides information on experimental procedures suitable for the assessment of equipment accuracy.