D31 (14-01)

    Item No.Sub No.Item
    1.02Revision Of D6656-2001(2010)E1 Test Method for Determination of Chromic Oxide in Wet Blue (Perchloric Acid Oxidation) WK41600
    2.02Revision Of D6657-2008 Test Method for pH of Wet Blue WK41599
    3.02Revision Of D7674-2010 Test Method for Hexane/Petroleum Ether Extract in Wet Blue and Wet White WK40322
    4.04Revision Of D2821-2009 Test Method for Measuring the Relative Stiffness of Leather by Means of a Torsional Wire Apparatus WK44390
    5.05Test Method For Standard Test Method for Resistance of Finish to Heat Aging (Finish Stability) WK25097
    6.05Revision With Title Change to D7255-2006E1 Test Method for Abrasion Resistance of Leather (Rotary Platform, Double-Head Method) WK32956