ASTM D4603-03

Standard Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer

STANDARD published on 10.3.2003

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The information about the standard:

Designation standards: ASTM D4603-03
Note: WITHDRAWN
Publication date standards: 10.3.2003
SKU: NS-27870
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D4603-03 :

Keywords:

glass capillary viscometer, inherent viscosity, poly-(ethylene terephthalate), PET, solution viscosity, ICS Number Code 83.080.20 (Thermoplastic materials)

Additional information

Significance and Use

The inherent viscosity is relatable to the composition and molecular weight of a polyester resin. It must be controlled so that the processability and end properties of the resin remain in a desired range.

1. Scope

1.1 This test method is for the determination of the inherent viscosity of poly(ethylene terephthalate) (PET) soluble at 0.50 % concentration in a 60/40 phenol/1,1,2,2-tetrachloroethane solution by means of a glass capillary viscometer. Highly crystalline forms of PET that are not soluble in this solvent mixture will require a different procedure.

1.2 The inherent viscosity values obtained by this test method are comparable with those obtained using differential viscometry described in Test Method D 5225.

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 8.

2. Referenced Documents

D445-23	Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
C 602	Testing of Glass Volumetric Apparatus Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
ISO 1628-5	Determination of the Viscosity of Polymers in Dilute Solution Using Capillary Viscometers--Part 5: Thermoplastic Polyester (TP) homopolymers and Copolymers. Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
D1972-97(2001)	Standard Practice for Generic Marking of Plastic Products
D446-12(2017)	Standard Specifications and Operating Instructions for Glass Capillary Kinematic Viscometers
IEEE/ASTM SI-10	Practice for Use of the International System of Units (SI)
E1-14(2020)	Standard Specification for ASTM Liquid-in-Glass Thermometers
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
D5225-22	Standard Test Method for Measuring Solution Viscosity of Polymers with a Differential Viscometer

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