8.1 Density and Change in mass.When required, calculate the density of dry specimen as tested.the mass change due to conditioning of the material , and the mess change of the specimen during test.
8.1.1 density of batt and blanket specimens.It has been found that it is important to measure the mass of the specimen directly measured shall be cut out and its mass determined after testing. unless the specimen must be retained for further testing.
8.2 thermal properties for one specimen. When only one specimen is used,calculate the thermal conductance of the specimen as follows
and where applicable,calculate the thermal conductivity ,as follows
8.3 thermal properties for two specimens.when two specimens are used, calculate the total thermal conductance
that is, the average thermal conductivity of the specimen is calculated
where the subscripts refer to the two specimens.
8.4 other derived thermal properties may be calculated but only under the provisions given in Practice C1045.
8.5 thermal properties for two transducers. all pertinent equations of 8.2 and 8.3 apply to this configuration, provided SE will be replaced by .