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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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In addition we may use third party services such as Google Analytics that collect, monitor and analyse this data. 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.

A cookie is a small file of letters and numbers that we put on your computer if you agree. Link to Active This link will always route to the current Asym version of the standard. 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.

The solution and viscometer are placed in a constant temperature water bath. The ratio of the difference between the viscosities of solution and solvent to the viscosity of the solvent.

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

Thermal equilibrium is obtained within the solution. Highly crystalline forms of Aztm that are not soluble in this solvent mixture will require a different procedure. Solvent and solution flow times are measured at 30 deg.

The polymer is first weighed and then dissolved in an appropriate solvent. ISO also uses Type 1C Ubbelohde viscometer, rather than the 1B, and reports viscosity number, rather than inherent viscosity. Using these integrated options ensures full integrity of data from end to end in the ast, process.

Dissolution is carried out using a reaction block with stirring and heating at deg. Historical Xstm s – view previous versions of standard. We reserve the right to update or change our privacy policy at any time and you should check this privacy policy periodically.


ASTM D4603 – 18

If you do not agree you xstm not continue to use this website. Equipment used at Plastics Technology Laboratories, Inc: The ratio of the viscosity of the solution to the viscosity of the solvent.

The RPV-2 software automatically calculates the Intrinsic Viscosity from each single determination using the Billmeyer equation. These cookies allow us to distinguish you from other users of asfm website, which helps us to provide you with a good experience when you browse our website and also allows us to improve our site.

Inherent / Intrinsic / Relative Viscosity ASTM D D D

This page informs you of our policies regarding the collection, use and disclosure of personal information we receive from users of the site. Dilute Solution Viscosity of Polymers. If the material is filled, it is important to specify percent filler. 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.

The limiting value of the reduced viscosity or the inherent viscosity at infinite dilution of the polymer. Standards can be obtained from appropriate standards authorities. By using the site, you agree to the collection and use of information in accordance with this policy.

You must have JavaScript enabled in your browser to utilize the functionality of this website. The ratio of the natural logarithm of the relative viscosity to the mass concentration of the polymer. 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 is used as an indication of the molecular weight of polymers.

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Like many sites, we use cookies to collect information. Log data Like many other site operators, we collect information that your browser sends whenever you visit our site. The method requires that three successive flow times are obtained within 0. JavaScript seems to be disabled in your browser. The ratio of the relative viscosity increment to the mass concentration of the polymer.


The time for the solution to flow from the upper to lower graduation marks is recorded. C using the same 1B size of suspended-level Ubbelohde type viscometer for both measurements.

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Specific hazards statements are given in Section 8. The property of resistance of flow exhibited within the body of a material.

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