Round-robin correlation testing of an X-band dielectric constant and dissipation factor test method

An X-Band stripline dielectric constant and dissipation factor test method (now incorporated into Mil-P-13949E) was subjected to a round-robin test program by a Task Group of A.S.T.M. Committee D09.12.03 to determine interlaboratory reproducibility. Ten laboratories, many with no previous experience, participated, testing 30 samples of stripline materials. Excellent reproducibility was demonstrated.