ASTM D4802-15
(Specification)Standard Specification for Poly(Methyl Methacrylate) Acrylic Plastic Sheet
Standard Specification for Poly(Methyl Methacrylate) Acrylic Plastic Sheet
ABSTRACT
This specification covers monolithic methacrylate sheets produced by various processes. For this specification, methacrylate sheet shall be composed of polymerized acrylic monomers of which at least 80% shall be methyl methacrylate. Materials shall be classified under categories and finishes: Category A-1; Category A-2; Category B-1; and Category B-2.Finish 1; Finish 2; Finish 3; Type UVF; and Type UVT. Tests shall be performed to determine the properties of the material in accordance with following test methods: test conditions; index of refraction; specific gravity; luminous transmittance; haze; water-absorption; shrinkage; thermal stability; deflection temperature under flexural load; tensile strength and elongation at break; impact strength; spectral transmittance of Type UVF and UVT sheet; abrasion resistance; coating adhesion; and chemical resistance.
SCOPE
1.1 This specification covers monolithic methacrylate sheets produced by various processes. For this specification, methacrylate sheet shall be composed of polymerized acrylic monomers of which at least 80 % shall be methyl methacrylate.
Note 1: This specification is intended to consolidate the requirements of the Cast Methacrylate Plastic Sheets portion of discontinued Fed. Spec. L-P-391D, discontinued Specification D702. Cast Methacrylate Plastic Sheets, Rods, Tubes and Shapes, and discontinued Specification D1547, Extruded Acrylic Plastic Sheet.
1.2 This specification is intended to cover acrylic sheet for general-purpose applications. For specialty applications consult the appropriate use standards.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 8, of this specification: 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.
1.4 Acrylic sheet is used frequently in applications in which extreme clarity, lack of optical distortion and absence of any foreign particulate matter are of primary significance. Reground material is suitable for use as long as careful control is used to eliminate adverse effects on these properties. The use of recycled material in type B-1 and B-2 sheet, is not suitable for use when these properties are adversely affected. The use of recycled or reground material is not possible for type A-1 and A-2 materials since the sheet is produced directly from monomer
Note 2: This standard and ISO 7823-1 address the same subject matter, but differ in technical content.
General Information
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Designation:D4802 −15
StandardSpecification for
1
Poly(Methyl Methacrylate) Acrylic Plastic Sheet
This standard is issued under the fixed designation D4802; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 Thisspecificationcoversmonolithicmethacrylatesheets
D256 Test Methods for Determining the Izod Pendulum
produced by various processes. For this specification, meth-
Impact Resistance of Plastics
acrylate sheet shall be composed of polymerized acrylic
D542 Test Method for Index of Refraction of Transparent
monomersofwhichatleast80 %shallbemethylmethacrylate.
Organic Plastics
NOTE 1—This specification is intended to consolidate the requirements
D570 Test Method for Water Absorption of Plastics
of the Cast Methacrylate Plastic Sheets portion of discontinued Fed. Spec.
D638 Test Method for Tensile Properties of Plastics
L-P-391D, discontinued Specification D702. Cast Methacrylate Plastic
Sheets, Rods, Tubes and Shapes, and discontinued Specification D1547, D648 Test Method for Deflection Temperature of Plastics
Extruded Acrylic Plastic Sheet.
Under Flexural Load in the Edgewise Position (With-
3
drawn 2016)
1.2 This specification is intended to cover acrylic sheet for
D792 Test Methods for Density and Specific Gravity (Rela-
general-purpose applications. For specialty applications con-
tive Density) of Plastics by Displacement
sult the appropriate use standards.
D883 Terminology Relating to Plastics
1.3 The following safety hazards caveat pertains only to the
D1003 Test Method for Haze and Luminous Transmittance
test methods portion, Section 8, of this specification: This
of Transparent Plastics
standard does not purport to address all of the safety concerns,
D1044 Test Method for Resistance ofTransparent Plastics to
if any, associated with its use. It is the responsibility of the user
Surface Abrasion
of this standard to establish appropriate safety and health
D1308 Test Method for Effect of Household Chemicals on
practices and determine the applicability of regulatory limita-
Clear and Pigmented Organic Finishes
tions prior to use.
D3002 Guide for Evaluation of CoatingsApplied to Plastics
1.4 Acrylic sheet is used frequently in applications in which
3
(Withdrawn 2016)
extreme clarity, lack of optical distortion and absence of any
D3359 Test Methods for Measuring Adhesion by Tape Test
foreign particulate matter are of primary significance. Re-
D3892 Practice for Packaging/Packing of Plastics
ground material is suitable for use as long as careful control is
E29 Practice for Using Significant Digits in Test Data to
usedtoeliminateadverseeffectsontheseproperties.Theuseof
Determine Conformance with Specifications
recycled material in type B-1 and B-2 sheet, is not suitable for
2.2 ISO Standard:
use when these properties are adversely affected. The use of
ISO 7823-1 (E) Plastics—Poly(Methyl Methacrylate)
recycled or reground material is not possible for type A-1 and
4
Sheets—Types, Dimensions, and Characteristics
A-2 materials since the sheet is produced directly from
monomer
3. Terminology
NOTE 2—This standard and ISO 7823-1 address the same subject
3.1 Definitions:
matter, but differ in technical content.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
This specification is under the jurisdiction of ASTM Committee D20 on Standards volume information, refer to the standard’s Document Summary page on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic the ASTM website.
3
Materials. The last approved version of this historical standard is referenced on
Current edition approved Dec. 15, 2015. Published January 2016. Originally www.astm.org.
4
approved in 1988. Last previous edition approved in 2010 as D4802 – 10. Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
DOI:10.1520/D4802-15. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D4802−15
TABLE 1 Finish 3 Abrasion Resistant Material
3.1.1 General—The definitions given in Terminology D883
are applicable to this specification. Property Test Method Requirement
Abrasion resistance, 100 cycles at D1044
3.2 Definitions of Terms Specific t
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D4802 − 10 D4802 − 15
Standard Specification for
1
Poly(Methyl Methacrylate) Acrylic Plastic Sheet
This standard is issued under the fixed designation D4802; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers monolithic methacrylate sheets produced by various processes. For this specification, methacrylate
sheet shall be composed of polymerized acrylic monomers of which at least 80 % shall be methyl methacrylate.
NOTE 1—This specification is intended to consolidate the requirements of the Cast Methacrylate Plastic Sheets portion of discontinued Fed. Spec.
L-P-391D, discontinued Specification D702. Cast Methacrylate Plastic Sheets, Rods, Tubes and Shapes, and discontinued Specification D1547, Extruded
Acrylic Plastic Sheet.
1.2 This specification is intended to cover acrylic sheet for general-purpose applications. For specialty applications consult the
appropriate use standards.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 8, of this specification: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.
1.4 Acrylic sheet is used frequently in applications in which extreme clarity, lack of optical distortion and absence of any foreign
particulate matter are of primary significance. Reground material is suitable for use as long as careful control is used to eliminate
adverse effects on these properties. The use of recycled material in type B-1 and B-2 sheet, is not suitable for use when these
properties are adversely affected. The use of recycled or reground material is not possible for type A-1 and A-2 materials since the
sheet is produced directly from monomer
NOTE 2—This standard and ISO 7823-1 address the same subject matter, but differ in technical content.
2. Referenced Documents
2
2.1 ASTM Standards:
D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
D542 Test Method for Index of Refraction of Transparent Organic Plastics
D570 Test Method for Water Absorption of Plastics
D638 Test Method for Tensile Properties of Plastics
3
D648 Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position (Withdrawn 2016)
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
D1003 Test Method for Haze and Luminous Transmittance of Transparent Plastics
D1044 Test Method for Resistance of Transparent Plastics to Surface Abrasion
D1308 Test Method for Effect of Household Chemicals on Clear and Pigmented Organic Finishes
3
D3002 Guide for Evaluation of Coatings Applied to Plastics (Withdrawn 2016)
D3359 Test Methods for Measuring Adhesion by Tape Test
D3892 Practice for Packaging/Packing of Plastics
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.2 ISO Standard:
4
ISO 7823-1 (E) Plastics—Poly(Methyl Methacrylate) Sheets—Types, Dimensions, and Characteristics
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
Current edition approved July 1, 2010Dec. 15, 2015. Published July 2010January 2016. Originally approved in 1988. Last previous edition approved in 20022010 as
D4802 – 02.D4802 – 10. DOI:10.1520/D4802-10.DOI:10.1520/D4802-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2
...
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