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This report describes the work carried out in the certification of a reference material for thermal conductivity. The certified values are based on results obtained with special high-precision guarded hot-plates, backed up by further measurements using more conventional equipment. Details of the apparatus, procedures and the estimated uncertainties are given. The various results are discussed, compared and statistically analysed. Problems to be avoided with conventional guarded hot-plate techniques are fully considered.

Additional information

Authors: WILLIAMS I, National Physical Laboratory, Teddington (GB);SHAWYER R E, National Physical Laboratory, Teddington (GB)
Bibliographic Reference: EUR 13358 EN (1991) 83 pp., FS, ECU 7.50
Availability: (2)
ISBN: ISBN 92-826-2404-8
Record Number: 199110354 / Last updated on: 1994-12-02
Original language: en
Available languages: en