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    ASTM D1238-04a

    Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
    • 발행일 : 2004-08-01
    • 발행기관 : ASTM
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상세정보

분야 08.01 : 플라스틱 (Ⅰ)
적용범위

1.1 This test method covers measurement of the rate of extrusion of molten resins through a die of a specified length and diameter under prescribed conditions of temperature, load, and piston position in the barrel as the timed measurement is being made.

1.2 Procedure A is a manual cutoff operation based on time used for materials having flow rates that fall generally between 0.15 and 50 g/10 min. Procedure B is an automatically timed flow rate measurement used for materials having flows from 0.50 to 900 g/10 min. By both procedures, the piston travel is generally the same during the timed measurement; the piston foot is about 46 and 20.6 mm above the die. Comparable flow rates have been obtained by these procedures in interlaboratory round-robin measurements of several materials described in . Provision is made for calculation of melt volume-flow rate as well as melt mass-flow rate.

Note 1—Round-robin testing indicates this test method may be suitable at flow rates up to 1500 g/10 min if the timing clock resolves the elapsed time to the nearest 0.01 s.

Note 2—This test method and ISO 1133-1991 are technically equivalent.

1.3 This standard does not purport to address the safety concerns, if any, associated with its use. 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. Specific precautionary statements are given in 5.7, 10.2.12, and 14.1.2.

국제분류(ICS)코드
페이지수 13
Edition 04a

이력정보

No. 표준번호 표준명 발행일 상태
1 ASTM D1238-23a상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2023-11-15 표준
2 ASTM D1238-23a REDLINE상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2023-11-15 표준
3 ASTM D1238-23상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2023-02-01 구판
4 ASTM D1238-23 REDLINE상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2023-02-01 구판
5 ASTM D1238-20 REDLINE상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2020-07-01 구판
6 ASTM D1238-20상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2020-07-01 구판
7 ASTM D1238-13 REDLINE상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2013-08-01 구판
8 ASTM D1238-13상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2013-08-01 구판
9 ASTM D1238-10상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2010-02-01 구판
10 ASTM D1238-04c상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2004-12-01 구판
11 ASTM D1238-04a상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2004-08-01 구판
12 ASTM D1238-04상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2004-03-01 구판
13 ASTM D1238-00상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2001-08-10 구판
14 ASTM D1238-01e1상세보기 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer 2001-08-10 구판
15 ASTM D1238-90b상세보기 Standard Test Method for Flow Rates of Thermoplastics by Extrusion Plastometer 구판
16 ASTM D1238-85상세보기 Standard Test Method for Flow Rates of Thermoplastics by Extrusion Plastometer 구판

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