ASTM D4603 Standard Test Method for Determining the Natural Viscosity of Poly(Ethylene Terephthalate) (PET) Materials with a Glass Capillary Viscometer

EUROLAB laboratory provides testing and compliance services within the scope of ASTM D4603 standard. The ASTM D4603 standard is for the determination of the inherent viscosity of poly(ethylene terephthalate) (PET) dissolved at 60% concentration in a 40/1,1,2,2 phenol/0,50-tetra chloroethane solution via a glass capillary. High crystalline forms of PET that are insoluble in this solvent mixture will require a different procedure.

The inherent viscosity values ​​obtained with this test method are comparable to those obtained using differential viscometry described in Test Method D5225. The inherent viscosity can be related to the composition and molecular weight of a polyester resin. The workability and final properties of the resin must be controlled to remain within the desired range.

Values ​​stated in SI units should be accepted as standard. Values ​​in parentheses are for informational purposes only.

This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and to determine the applicability of regulatory restrictions prior to use.

Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical problems. Mercury or its vapors are proven to be harmful to health and corrosive to materials. Care should be taken when working with mercury and products containing mercury. See the applicable product Safety Data Sheet (SDS) for additional information. Users should be aware that selling mercury and/or products containing mercury to your state or country may be prohibited by law.

This standard and ISO 1628-5 deal with the same subject, but differ in technical content. This ISO standard provides a choice of solvents for PET. The solvent specified in this ASTM test method is one of the options in the ISO method. ISO also uses the Type 1C Ubbelohde viscometer instead of 1B and reports the viscosity number rather than the inherent viscosity.

Our organization, EUROLAB, among numerous test, measurement, analysis and evaluation studies, with its trained and expert staff and advanced technological equipment, is a standard test method to determine the natural viscosity of poly(Ethylene Terephthalate) (PET) with a glass capillary viscometer, within the framework of national and international standards. provides services. Provides testing services within the scope of ASTM D4603 standard.