This standard specifies 3 testing methods for interlacing degree of synthetic filament yarns: Method A: manual needle-transfer method; Method B: manual heavy hammer method; Method C: instrument needle-transfer method.
This standard is applicable to synthetic filament yarns for textiles. Method A is primarily applicable to fully drawn yarns, Method B is primarily applicable to interlacing degree of stretch yarns while Method C is applicable to fully drawn yarn and interlacing degree of stretch yarn. In case of any dispute in testing result, Method A and Method B are adopted.
FZ/T 50001-2005 The following standards are cited: