Home; ASTM D standard by ASTM International, 08/01/ . View all Printed Edition + PDF;; Immediate download; $; Add to Cart. Request PDF on ResearchGate | Understanding melt index and ASTM D | In plastics manufacturing, the melt flow index (MFI) is used as a routine indicator. astm d æœˆ, 14 1 GMT astm d pdf - ãƒ•ãƒªã‚« ãƒ¼ãƒœãƒ•ãƒ¼ãƒ. ˆæ¨¹è„‚ã‚„PPSæ¨¹è„‚ã•®ãƒš ãƒ¬ãƒƒãƒˆã‚'ã•Šå®¢ã••ã•¾.
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This standard is issued under the fixed designation D ; the number 1 This test method is under the jurisdiction of ASTM Committee D20 on Plastics. D Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer Standard + Redline PDF Bundle, 32, $, ADD TO CART. This standard is issued under the fixed designation D; the 1 This test method is under the jurisdiction of ASTM Committee D20 on.
Request Free Trial. Need help or have a question? The volume is converted to a mass measurement by multiplying the result by the melt density value for the material see Note 2. Link to Active This link will always route to the current Active version of the standard. Procedure B is an automatically timed flow rate measurement used for materials having flows from 0. Specimen size:
Procedure B measurements are based on the determination of the volume of material extruded from the die over a given period of time.
The volume is converted to a mass measurement by multiplying the result by the melt density value for the material see Note 2. Procedure B is generally used with materials having melt flow rates from 0.
The test procedure is similar to Procedure B, but the results obtained with Procedure C shall not be assumed to be half of those results produced with Procedure B. Procedure D is designed to allow MFR determinations to be made using two or three different test loads either increasing or decreasing the load during the test on one charge of material. Results generated from multi-weight tests shall not be directly compared with results derived from Procedure A or Procedure B.
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.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Historical Version s - view previous versions of standard Work Item s - proposed revisions of this standard Translated Version s: Scope 1. Note 1 — Polymers having melt flow rates less than 0.
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D — 04 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Procedure B is an automatically timed flow rate measurement used for materials having flows from 0. At least 14 grams of material Data: Standards can be obtained from appropriate standard authorities.
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