AATCC EP9-2021 Evaluation Procedure for Visual Assessment of Color Difference of Textiles AATCC EP7-2021 Evaluation Procedure for Instrumental Assessment of the Change in Color of a Test Spe AATCC EP14-2021 AATCC Evaluation Procedure for Small Color Differences AATCC EP2-2020 Evaluation Procedure for Gray Scale for Staining AATCC EP6-2016(E2019) Evaluation Procedure for Instrumental Color Measurement AATCC EP8-2010(E2019) Evaluation Procedure for AATCC 9-Step Chromatic Transference Scale AATCC 84-2018(E2019) Test Method for Electrical Resistance of Yarns AATCC 192-2013(E2019) Test Method for Weather Resistance of Textiles_ Sunshine-Arc Lamp Exposure Wit