ASTM D3123 PDF
Flow of Low-Pressure Thermosetting Molding Compounds. Article no: STD- Edition: Approved: 9/1/ No of pages: 4. Replaces: ASTM D ASTM-D Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds – spiral flow; thermosets;; ICS Number Code Standard Number, ASTM D – 09(). Title, Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds.
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Spiral Flow – Neu Dynamics Corporation
You currently cannot view this content. Standards Subsctiption may be the perfect solution. Enter your account email address to request a password reset: It is recommended that the plunger be equipped with at least one peripheral sealing groove. Note 1—There is no known ISO equivalent to this test method. Data Sheet for CalCoat NOTE 5—Preforms or pellets may be used if found necessary; however, flow length may be affected by their use.
In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. No further reproductions authorized. Typical examples are presses with pot diameters of The actual transfer pressure is then calculated as pascals or pounds per square inch by dividing the force in newtons or pounds-force by the plunger area in square metres or square inches.
Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds
Remember me for one month. Proceed to Checkout Continue Shopping. Content only available by subscription. Conversion to SI units can readily be asfm by multiplying the flow length, in inches, by the appropriate conversion factor, The electronic file may not be reproduced in any way.
Therefore, for best interlaboratory correlation it is recommended that identical pot diameters be used. The temperature shall v3123 allowed to reach equilibrium by waiting at least 3 min between moldings.
Sampling, based on engineering principles, prior to packaging shall be considered an acceptable alternative. Please first log in with a verified email before subscribing to alerts.
D — 09 sufficiently accurate for determining transfer pressure. Too long a dwell time before transferring will cause erratic results. We have no document history for this standard. No further reproductions authorized. Alternative methods of conditioning samples shall be sstm agreed upon between manufacturer and purchaser. Are you sure you want to empty the cart? For this reason, data on precision and bias cannot be given. Precision and D31123 NOTE 3—Since the only commercially available molds are calibrated in inches, spiral-flow length will be reported in these units.
We have no amendments or corrections for this standard. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. For transfer pots Already Subscribed to this document. The use of excessive amounts of compound will result in shorter, inconsistent spiral flows. The elapsed time d312 insertion of the charge into the pot and the development of pressure on the charge by the plunger shall be no more than 5 axtm.
Permission rights to photocopy the standard may also be secured from the ASTM website www. The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only.
Need more than one copy? Search book title Enter keywords for book title search. Because this test method does not contain a round-robin-based numerical precision and bias statement, it shall not be used as a asmt test method in case of dispute.
There were no books found for the applied search filters. NOTE 2—Preliminary evidence indicates that, in many cases, reasonable correlations may be achieved between laboratories using presses with different pot diameters. Enter your personal account email address to request a password reset: Significance and Use 4. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Therefore, the force exerted by the zstm shall be measured by some means such as an accurately calibrated direct-reading force gage or proving ring. 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. NOTE 4—There is considerable evidence that the test is usable over a wider range of flow lengths, but this has not yet been confirmed by interlaboratory testing.
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ASTM D3123 – 09(2017)
However, a few well-documented cases are recorded where differences in pot diameters, even within this listed range, have caused large differences in flow-length readings. If the document is revised or amended, you will be notified by email.
This procedure is atm when changing from one compound to another and is recommended as a routine practice. You can download and open this file to s3123 own computer but DRM prevents opening this file on another computer, including a networked server. Best Practices for Incorporating Standards Education in the. This time will vary with the compound under test.