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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A cookie is a small file of letters and numbers that we put on your computer if you agree. The ratio of the viscosity of the solution to the viscosity of the solvent. Equipment used at Plastics Technology Laboratories, Inc: By using the site, you agree to the collection and use of information in accordance with this policy.

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C with a programmable timer.

Inherent / Intrinsic / Relative Viscosity ASTM D D D

The liquid is then brought above the upper graduation mark on the viscometer. C using the same 1B size of suspended-level Ubbelohde type viscometer for both measurements.


The ratio of the relative viscosity increment to the mass concentration of the polymer. The limiting value of the reduced viscosity or the inherent viscosity at infinite dilution of the polymer.

Dilute Solution Viscosity of Polymers

ISO also uses Type 1C Ubbelohde viscometer, rather than the 1B, and reports viscosity number, rather than inherent viscosity. Due to copyright restrictions, we are not able to provide d6403 of standards. Caution should be taken when handling mercury and mercury containing products. The solution and viscometer are placed in a constant temperature water bath. Highly crystalline forms of PET that are not soluble in this solvent mixture will require a different procedure.

It is used for polymers that dissolve completely without chemical reaction or degradation and can provide an excellent determination of lot-to-lot consistency or be used to compare molded parts to original resin for determinations of degradation from molding. Your continued use of the service after we post any modifications to the privacy policy on this page will constitute your acknowledgment of the modifications s4603 your consent to abide and be bound by the modified f4603 policy.

PET – Intrinsic Viscosity – ASTM D – RPV-2 Polymer Viscometer – Automated Viscometers

If the material is filled, it is important to specify percent filler. In addition we may use third party services such as Google Analytics that collect, monitor and analyse this data. The ratio of the difference between the viscosities of solution and solvent to the viscosity of the solvent. Dilute Solution Viscosity of Polymers. The property of resistance of flow exhibited within f4603 body of a material.


Log data Like many other site operators, we collect information that your browser sends whenever you visit our site. Solvent and solution flow times are measured at 30 deg. Show 5 10 15 20 25 per page. Cookies are sent to your browser from a web site and stored on the hard drive of your computer. Dilute Solution Viscosity is used as an indication of the molecular weight of polymers.

Contact us If you have any questions about this privacy policy, please contact us. It is the responsibility of the user of this standard to establish asfm safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

The ratio of the natural logarithm of the relative viscosity to the mass concentration of the polymer. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Like many sites, we use cookies to collect information. We reserve the right to update or change our aastm policy at any time and you should check this privacy policy periodically.

The polymer is first weighed and then dissolved in an appropriate solvent.