ASTM D Standard Test Method for Determining Inherent Viscosity of Poly( Ethylene Terephthalate) (PET) by Glass Capillary Viscometer. This standard is issued under the fixed designation D ; the number specified in this ASTM test method is one of the options in the ISO method. ISO also. Find the most up-to-date version of ASTM D at Engineering
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Solvent and solution flow times are measured at 30 deg. C using the same 1B size of suspended-level Ubbelohde type viscometer for both measurements.
Dilute Solution Viscosity of Polymers
The method requires that three successive flow times are obtained within 0. The RPV-2 software automatically calculates the Intrinsic Viscosity from each single determination using the Billmeyer equation. Dissolution is carried out using a reaction block with stirring and heating at deg. C with a programmable timer. Using these integrated options ensures full integrity of data from end to end in the measurement process.
ASTM D4603 – 18
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Inherent / Intrinsic / Relative Viscosity ASTM D D D