Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).
NIST Authors in Bold
|Author(s):||Robert R. Zarr; James J. Filliben;|
|Title:||An International Study of Guarded Hot Plate Laboratories Using Fibrous Glass and Expanded Polystyrene Reference Materials|
|Published:||October 01, 2002|
|Abstract:||Thermal conductivity measurements of four thermal insulation reference materials are presented. The measurements were obtained from an international study of guarded-hot-plate laboratories from Canada, France, Japan, United Kingdom, and United States. For each reference material, the study requires five independent replicate measurements at a fixed temperature of 297.15 K; and, single-point measurements from 280 K to 290 K 300 K, and 320 K. An important finding from the replicate analysis is the existence of a laboratory-material interaction, that is, there are laboratory-to laboratory differences in both location and in variation, that change from material to material. The major underlying source for the variability (both within- and between-laboratory) in the replicate data is discussed. The analysis of the multi-temperature (280 K to 320 K) data supports the laboratory-material interaction as exhibited in the fixed-temperature replicate data. The multi-temperature analysis also reveals an increasing difference between laboratories as the temperature departs from 297.15 K.|
|Conference:||American Society of Mechanical Engineers|
|Proceedings:||Insulation Materials: Testing and Applications, Symposium | 4th | Insulation Materials: Testing and Applications: ASTM Special Technical Publication | ASME|
|Dates:||October 21-22, 2002|
|Keywords:||certified reference material,guarded hot plate,interlaboratory,reference materials,SRM,thermal conductivity,thermal insulation|
|Research Areas:||Building and Fire Research|
|PDF version:||Click here to retrieve PDF version of paper (392KB)|