ASTM-D4989 › Standard Test Method for Apparent Viscosity (Flow) of Roofing Bitumens Using the Parallel Plate Plastometer
Standard Test Method for Apparent Viscosity (Flow) of Roofing Bitumens Using the Parallel Plate Plastometer
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Document Number
ASTM-D4989_D4989M-90AR21
Revision Level
1990A R21 EDITION
Status
Current
Publication Date
Jan. 6, 2021
Page Count
4 pages