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Document Designation and Title Year Select Item(s) D648 Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position 06 D648 Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position 04 D648 Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position 01 D648 Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position 00a