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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If we make any material changes to this privacy policy, we will notify you either through the email address zstm have provided us, or by placing a prominent notice on our website. Like many sites, we use cookies to collect information. The test method requires a 0. The polymer is first weighed and then dissolved in an appropriate solvent.

Read more about the individual cookies we use and how to recognise atsm by clicking Cookie Policy. Solvent and solution flow times are measured at 30 deg. The solution and viscometer are placed f4603 a constant temperature water bath. The ratio of the viscosity of the solution to the viscosity of the solvent. C with a programmable timer. By using the site, you agree to the collection and use of information in accordance with this policy. Information collection and use While using our site, we may ask you to provide us with certain personally identifiable information that can be used to contact or identify you.

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

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. Standards can be obtained from appropriate standards authorities. My Account Log In. The ratio of the natural logarithm of the relative viscosity to the mass concentration of the polymer.


If the material is filled, it is important to specify percent filler. The property of resistance of flow exhibited within the body of a material. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Dilute Solution Viscosity of Polymers. A cookie is a small file of letters and numbers that we put on your computer if you agree. Commonly a sample size of mg.

It must be controlled so that the processability and end properties of the resin remain in a desired range. The limiting value of the reduced viscosity or the inherent viscosity at infinite dilution of the polymer. Highly crystalline forms of PET that are not soluble in this solvent mixture will require a different procedure. C using the same 1B size of suspended-level Ubbelohde type viscometer for both measurements.

ISO also uses Type 1C Ubbelohde viscometer, rather than the 1B, and reports viscosity number, rather than inherent viscosity. Contact us If you have any questions about this privacy policy, please contact us. The time for the solution to flow from the upper to lower graduation marks is recorded.

The ratio of the relative viscosity increment axtm the mass concentration of the polymer. Our website uses cookies. Equipment used at Plastics Technology Laboratories, Inc: Cookies are sent to your browser from a web site and stored on d460 hard drive of your computer. Dissolution is carried out using a reaction block with stirring and heating at deg. Historical Version s – view previous versions of standard. Caution should be taken when handling mercury and mercury containing products.

Changes to this privacy policy This privacy policy is effective as of 11th April and will remain in effect except with respect to any changes in its provisions in the future, which will be in effect immediately after being posted on this page. The liquid is then brought above the upper graduation mark on the viscometer. The RPV-2 software automatically calculates the Intrinsic Viscosity from each single determination using the Billmeyer equation.


It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Dilute Solution Viscosity is used as an indication of the molecular weight of polymers.

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Inherent / Intrinsic / Relative Viscosity ASTM D D D

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Show 5 10 15 20 25 per page. The ratio of the difference between the viscosities of solution and solvent to the viscosity of the solvent. Using these integrated options ensures full integrity of data from end to end in the measurement process. You must have JavaScript enabled in your browser to utilize the functionality of this website. This page informs you of our policies regarding the collection, use and disclosure of personal information we receive from users of the site.

ASTM D4603 – 18

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Thermal equilibrium is obtained within the solution.

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