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Document Designation and Title Year Select Item(s) D4138 Standard Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means 07 D4138 Standard Test Methods for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive Means 94(2001)e1 D4138 Standard Test Methods for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive Means 94(1999)