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ASTM D788

Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds

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Organization: ASTM
Publication Date: 1 November 2005
Status: inactive
Page Count: 6
ICS Code (Other rubber and plastics products): 83.140.99
scope:

The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D 4000. It further provides a means for specifying these materials by the use of a simple line callout designation.

This classification system covers poly(methyl methacrylate) molding and extrusion compounds. These compounds are polymers based on methyl methacrylate, and at least 70 % of the polymer shall be polymerized from methyl methacrylate.

The properties in this classification system are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specific applications. These shall be described by using the suffixes as given in Section 5.

Acrylic molding and extrusion compounds are used frequently in applications where extreme clarity and the ability to retain that clarity and color under severe weathering and other environmental exposures are of primary significance. While the test specimen properties of this document may be used to evaluate nonvirgin materials, the user should take precautions to ensure that parts made from these materials meet the desired end-use requirements. Accordingly, this specification allows for the use of those acrylic plastic materials that can be recycled, reconstituted, and regrounded provided the following:

The requirements as stated in this specification are met,

The material has not been modified in any way to alter its conformance to food contact regulations or similar requirements, and

The requirements of the particular end-use application are met.

This classification system and subsequent line callout (specification) are not intended for the selection of materials, but only as a means to call out plastic materials to be used for the manufacture of parts. The selection of these materials is to be made by personnel with expertise in the plastics field in which the environment, inherent properties of the materials, performance of the parts, part design, manufacturing process, and economics are considered.

NOTE 1-This classification system is similar to ISO 8257-1:1987 in title only. The technical content is significantly different.

The values stated in SI units are to be regarded as the standard.

This standard does not purport to address all of 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.

A Summary of Changes section appears at the end of this standard.

 

Document History

September 1, 2016
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D4000. It further provides a...
August 1, 2014
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D4000. It further provides a...
August 1, 2012
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D4000. It further provides a...
December 1, 2011
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D4000. It further provides a...
September 1, 2006
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D 4000. It further provides a...
ASTM D788
November 1, 2005
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D 4000. It further provides a...
February 1, 2004
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds1
A description is not available for this item.
March 10, 2002
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D 4000. It further provides a...
April 10, 1996
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
1. Scope 1.1 The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D 4000. It further...
June 15, 1995
STANDARD CLASSIFICATION SYSTEM FOR POLY(METHYL METHACRYLATE) (PMMA) MOLDING AND EXTRUSION COMPOUNDS
A description is not available for this item.
February 15, 1993
STANDARD CLASSIFICATION SYSTEM FOR POLY(METHYL METHACRYLATE) (PMMA) MOLDING AND EXTRUSION COMPOUNDS
A description is not available for this item.
February 24, 1984
STANDARD SPECIFICATION FOR METHACRYLATE MOLDING AND EXTRUSION COMPOUNDS (R 1990)
This specification covers methacrylate molding and extrusion compounds, These compounds are based on resins made by polymerization of acrylic monomers, of which at least 80 % shall be methyl...

References

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