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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Like many sites, we use cookies to collect information. Contact us If you have any questions about this privacy policy, please contact us. Cookies Cookies are files with small amount of data, which many include an anonymous unique identifier. The limiting value of the reduced viscosity or the inherent viscosity at infinite dilution of the polymer.

The ratio of the viscosity of the solution to the viscosity of the solvent. If we make any material changes to this privacy policy, we will notify you either through the email address you have provided us, or by placing a prominent notice on our website.

Dilute Solution Viscosity of Polymers. We use your personal information only for providing and improving the site. 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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The liquid is then brought above the upper graduation mark on the viscometer. 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. Highly crystalline forms of PET that are not soluble in this solvent mixture will require a different procedure.


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You must have JavaScript enabled in your browser to utilize the functionality of this website. The ratio of the relative viscosity increment to the mass concentration of the polymer. Historical Version s – view previous versions of standard. However, if you do not accept cookies, you may not be able to use some portions of our site. C with a programmable timer. The RPV-2 software automatically calculates the Intrinsic Viscosity from each single determination using the Billmeyer equation.

By using the site, you agree to the collection and use of information in accordance with this policy. ISO also uses Type 1C Ubbelohde viscometer, rather than the 1B, and reports viscosity number, rather than inherent viscosity. Specific hazards statements are given in Section 8. 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.

Our website uses cookies. The test method requires a 0.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. These cookies allow us to distinguish you from other users of our website, which helps us to provide you with a good experience when you browse our website and also allows us to improve our site. The solution and viscometer are placed in a constant temperature water bath. The values given in parentheses are for information only.


Inherent / Intrinsic / Relative Viscosity ASTM D D D

Thermal equilibrium is obtained within the solution. Using these integrated options ensures full integrity of data from end to end in the measurement process.

Commonly a sample size of mg. Standards can be obtained from appropriate standards authorities. Due to copyright restrictions, we are not able to provide copies of standards. My Account Log In. The method requires that three successive flow times are obtained within 0.

JavaScript seems to be disabled in your browser. The property of resistance of flow exhibited within the body of a material.

PET – Intrinsic Viscosity – ASTM D4603

Link to Active This link will always route to the current Active version of the standard. Cookies are sent to your browser from a web site and stored on the hard drive of your computer. A cookie is a small file of letters and numbers that we put on your computer if you agree. Equipment used at Plastics Technology Laboratories, Inc: It is the responsibility of the user of this wstm to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.