14.2 Interlaboratory Test Data6—An interlaboratory test was run in 1977 in which randomly drawn specimens of six fabrics were tested in each of four to five laboratories. Three fabrics were circular knit fabrics containing spun yarns and three of the fabrics were tricot knit fabrics containing filament yarns. The components of variance for bursting strength results expressed as standard deviations were calculated to be the values reported in Table 1.