For solutions that are not mentioned within this section, please contact your local instron office. Melt flow rate measures the rate of extrusion of thermoplastics through an orifice at a prescribed temperature and load. Iso 13 and astm d1238 have more similarities than differences. Astm international standard references for astm d1238. Astm d1238 red standard test method for melt flow rates.
Access astm standards from any browser on your computer, tablet or smart phone. D256 d3159 to find similar documents by classification. Today, some 12,000 astm standards are used around the world to improve product quality, enhance safety, facilitate market. Last previous edition approved in 2010 as d1238 10. Astm d1238 04 standard test method for melt flow rates of thermoplastics by extrusion plastometer. Table 1 in classification d4000 lists the astm polyolefins with a mfr of 75 or. Standard test method for timetofailure of plastic pipe. Standard test method for tensile properties of plastics1. At the test temperatures and under the stresses imposed, the plastic materials shall have a negligible creep or elastic strain rate or both, insofar as these properties would. Standard test method for tensile properties of thin. Astm d1238, table 4 lists generic meltdensity factors for virgin pp and pe.
Melt flow rates of thermoplastics by extrusion plastometer1. It provides a means of measuring flow of a melted material which can be used to differentiate grades as with polyethylene, or. Astm d1238 asme bpvc 20 set,ul pdf download,csa pdf. Note material is purged by forcing the piston to a position that. Astm d1238 standard test method for melt flow rates of thermoplastics by extrusion plastometer citing astm standards citation data is made available by participants in crossrefs citedby linking service.
Plastic specification sheets carpet america recovery effort. The method is described in the similar standards astm d1238 and iso 13. As soon as the transaction is completed, your astm standards subscription will be ready for access. Astm standards astm d3695 standards astm standards for welding astm international standards astm standards e456a astm standards corossion astm standards source astm standards for steel astm standards 2018 pdf astm standards 2017 astm c127 standards astm testing standards astm standards for sterl standards astm d882.
Standard test method for density, relative density speci. Documents sold on the ansi standards store are in electronic adobe acrobat pdf format, however some iso and iec standards are available from amazon in hard copy format. Astm d1238 04 standard test method for melt flow rates. Nih dia saya akan berikan keteman2 secara free ebook atau file pdf buku astm, neh dia daftar isinya. A comprehensive list of citations to this standard are listed here. Astmd1238 standard test method for melt flow rates of. D 1238 04 standard test method for melt flow rates of thermoplastics by extrusion plastometer 1 this standard is issued under the fixed designation d 1238. For annual book of astm standards volume information, refer to the standards document summary page on the astm website.
This test method covers the determination of the rate of extrusion of molten thermoplastic resins using an extrusion plastometer. Astm d1238 04 standard test method for melt flow rates of. Understanding melt index and astm d1238 request pdf. Standard test method for melt flow rates of thermoplastics. Giacomin, understanding melt index and astm d1238, journal of testing and evaluation, 411, 1 20. Melt flow index, melt flow rate, astm d1238, iso 13. Using tai for keeping time would mean that over the course of the years, noon would get earlier and earlier, until it would eventually occur in the wee hours of the morning. Available from the american petroleum institute api, 1220 l st. Astm d1238 standard test method for melt flow rates of thermoplastics by extrusion plastometer. This standard is issued under the fixed designation d 1238.
The weight per unit volume of a material, including voids inherent in the materials as tested. Standard test method for particlesize analysis of soils. Astm d104419 standard test method for resistance of transparent plastics to surface abrasion by the taber abraser. Astm standards astm d3695 standards astm standards for welding astm international standards astm standards e456a astm standards corossion astm standards source astm standards for steel astm standards 2018 pdf astm standards 2017 astm c127 standards astm testing standards astm standards for sterl standards astm d88209 astm standards for. This document is available in either paper or pdf format. Citing astm standards citation data is made available by participants in crossrefs citedby linking service. The test protocol above is used for defining all of the equipment used during the test ie. Manufacturers consider these standards technically equivalent, as both detail similar standards for using an extrusion plastometer, which is commonly known as a melt indexer. Astm standards that are referenced in this section are not intended to be a complete and comprehensive list, but a list of the most prominent and widelyused astm standards within the materials testing industry. Note when determining such a ratio of flow rates for a material at. A number in parentheses indicates the year of last reapproval.
Pdf standard test method for melt flow rates of thermoplastics. The protocol is followed in general except for the specific instructions presented in steps b f of this. Using tai for keeping time would mean that over the course of the years, noon would get earlier and earlier, until it. These factors will change with additives and processing, so it is more accurate to measure the actual melt density of the specific resin being tested.
Both standards present tests that measure one point on the viscosity curve under controlled. All bsi british standards available online in electronic and print formats. Astm standard test method for flow rates of thermoplastics by extrusion plastometer d 123888 1. Astm d1238 standard test method for melt flow rates. Last previous edition approved in 2004 as d1238 04c. Astm d107910 standard terminology relating to roofing. Standard test method for coefficient of linear thermal. Purchase your copy of astm d1238 as a pdf download or hard copy directly from the official bsi shop. Ihs markit is your source for astm standards and publications. Standard test method for density, relative density. Astm international, formerly known as the american society for testing and materials astm, is a globally recognized leader in the development and delivery of international voluntary consensus standards. The standard includes four different test procedures, with procedures a and b common with iso 13. It is generally used as an alternative to procedure b on samples having melt flow rates greater than 75 g10 min. Superseded see active link, below download standard pdf more info.
Therefore, this procedure is recommended for containers made from class 3 polyethylene only. This standard is issued under the fixed designation d1238. Astm d1238 standard test method for melt flow rates of. They are not free, they in a deep coma, they cannot do anything else besides that by millenia their ancestors did. Standard test method for melt flow rates of thermoplastics by. Astm d1238 meltflow rates of thermoplastics by extrusion. D1238 standard test method for melt flow rates of thermoplastics by extrusion plastometer. Table 1 liquid systems for densitygradient tubes system. Astm d 1895 bulk apparent density the real question is how much space does this stuff take up. Polyox watersoluble resins melt flow test procedure. D1238 standard test method for melt flow rates of.
Norma iso 13 i astmd1238 rolbatch dr laabs magdalena. Standard test method for melt flow rates of thermoplastics by extrusion plastometer view abstract product details document history astm d1238 complete document 2010 edition, february 1, 10. Astm d123804 standard test method for melt flow rates of thermoplastics by extrusion plastometer. Astm d1238 standard test method for melt flow rates of thermoplastics by.
194 1435 65 346 420 485 1054 118 891 627 1482 1523 1542 761 1360 1511 668 904 412 1044 1458 408 390 443 411 762 257 1043 273 1352 680