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ASTM D4989/D4989M-90a(2021)

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ASTM D4989/D4989M-90a(2021)

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Standard Test Method for Apparent Viscosity (Flow) of Roofing Bitumens Using the Parallel Plate Plastometer
standard by ASTM International, 01/01/2021

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Description

1.1”This test method covers the measurement of apparent viscosity of roofing bitumen by means of a parallel plate plastometer. This test method is applicable for a viscosity range from 10² to 109 Pa”s [10³ to 1010 poises]. See Note 1.

Note 1:This relatively simple test method of measuring viscosity uses predetermined, arbitrary shear stress levels. Since roofing bitumens are non-Newtonian, other viscosity test methods may give different results.

Product Details

Published:
01/01/2021
Number of Pages:
4
File Size:
1 file , 170 KB