This standard specifies a method for determining the composition of mixtures of down and feathers with polyester fiber or regenerated cellulose fiber using a combination of chemical separation and manual sorting. This standard applies to mixtures of down and feathers with polyester fiber or regenerated cellulose fiber.
T/CNTAC 9-2018 history
2018T/CNTAC 9-2018 Test method for composition of down and feather blended with certain other fibers