This standard specifies testing methods for oil content of man-made fibers: extraction method (Method A), neutral soap washing method (Method B), optical refractivity method (Appendix A) and nuclear magnetic resonance method (Appendix B). Where there is a disagreement, the extraction method is adopted and if this method is not applicable, the testing method shall be determined through consultation of the interested party.
This standard is applicable to the determination of oil content of man-made fibers like polyester (polyester fiber), polyamide (chinlon), polyacrylonitrile (acrylic fiber), polypropylene (polypropylene fiber), polyvinyl formal (vinylon) and cellulose fiber etc.
