Advanced Melt Flow System. The 6MPCA is the most advanced digital model offered within the Ray-Ran range of melt flow index testers. The operating. Find the most up-to-date version of ASTM D at Engineering ASTM D(). Standard Test Method for Flow Rates for Poly(Vinyl Chloride) with Molecular Structural Implications. standard by ASTM.

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If charging time is greater than ast min, clean out the instrument and repeat the procedure. Contact Us View Accessories Catalog. Fluctuations up and down repeatedly during a run can indicate nonuniform mixing or a bad charging technique. A clean sharp cut is desirable so that succeeding portions will extrude straight, not curled. We use cookies to improve your browsing experience. This sstm value is the PVC? Current edition approved March 10, Software for Series Systems.

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. A negative instability indicates either a degradation of the polymer or a change in the lubricant function at the metal surface of v3364 die.

Users of this test method should apply the principles outlined in Practice E to generate data speci? The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

This test method is used for quality-control tests on PVC compounds that have a wide range of melt viscosities. Report as percent PVC instability.


How can we help you? The sensitivity of the material to temperature necessitates slightly tighter controls than those stated in Test Method D An alternative thermoregulator is suggested for improved temperature control. The measured MFR value was found equal to 7.

At least twice a day check the ori?

If instability still occurs, particularly at high? Since Q is d33364 volumetric? These changes are due to three types of measured instability in polymers:. The instrument is now ready for the next test. Note 1—There is no known ISO equivalent to this standard. WaveMatrix 2 for Dynamic Testing. By continuing to use our site, you accept our cookie policy. Viscosity Shear Rate 1? The value for the instability will then be positive or negative.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Bluehill LE for Basic Testing. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Subscribe to Instron News! Summary of Test Method 4.

ASTM D Flow Rates for Poly Vinyl Chloride – Instron

NOTE 3—Occasionally, the values change throughout the run. Make the cut quickly and neatly for best precision. The sensitivity of this test method makes it useful for correlating with processing conditions and as an aid in predicting changes in processing.

Push out any molten PVC in the ori? Most regulators designed for Test Method D cannot control better than Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.


Put the die hot into methyl ethyl ketone in order to break the PVC skin away from the ori?

ASTM D3364 Flow Rates for Poly Vinyl Chloride

However, as a one-point measure of? Glossary of Materials Testing Terms.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Historical Version s – view previous versions of standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Thus, this test is able to detect and follow profound changes which occur during extrusion, injection molding, milling, or mixing.

Thus, implications with respect to PVC molecular structural changes can be detected and predicted. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Precision and Bias If the difference between the two specimens is greater than 0.

Please confirm that you agree with our privacy and cookies policy to submit this form. The sensitivity of this test method makes it useful for correlating with processing conditions and as an aid in predicting changes in processing.