ASTM F942-02

Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures

SCOPE
1.1 This guide summarizes the standard test methods available for determining physical and mechanical characteristics of interlayer materials used in multi-ply aerospace transparent enclosures.
1.2 Interlayer materials are used to laminate glass-to-glass, glass-to-plastic, and plastic-to-plastic. Interlayer materials are basically transparent adhesives with high-quality optical properties. They can also serve as an energy absorbing medium, a fail-safe membrane to contain cockpit pressure and to prevent entry of impact debris; a strain insulator to accommodate different thermal expansion rates of members being laminated and as an adherent to prevent spalling of inner surface ply material fragments. The relative importance of an interlayer characteristic will be a function of the prime use it serves in its particular application.
1.3 This guide, as a summary of various methods in Section 2, is intended to facilitate the selection of tests that can be applied to interlayer materials.
1.4 The test methods listed are for use in determining basic design characteristics and in assuring lot-to-lot uniformity of the materials being tested except as noted in 3.3.
1.5 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 heal practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-May-2002
• ICS: 49.025.50 - Adhesives
• Technical Committee: F07 - Aerospace and Aircraft
• Drafting Committee: F07.08 - Transparent Enclosures and Materials

Relations

• Replaces: ASTM F942-93 - Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures
• Effective Date: 10-May-2002
• Replaced By: ASTM F942-02(2008) - Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures
• Effective Date: 01-Apr-2008
• Referred By: ASTM F790-23 - Standard Guide for Testing Materials for Aerospace Plastic Transparent Enclosures
• Effective Date: 10-May-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F942–02
Standard Guide for
Selection of Test Methods for Interlayer Materials for
1
Aerospace Transparent Enclosures
This standard is issued under the fixed designation F942; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D412 Test Methods for Vulcanized Rubber and Thermo-
4
plastic Rubbers and Thermoplastic Elastomers-Tension
1.1 This guide summarizes the standard test methods avail-
D542 Test Methods for Index of Refraction of Transparent
ablefordeterminingphysicalandmechanicalcharacteristicsof
5
Organic Plastics
interlayer materials used in multi-ply aerospace transparent
5
D570 Test Method for Water Absorption of Plastics
enclosures.
D696 Test Method for Coefficient of Linear Thermal Ex-
1.2 Interlayer materials are used to laminate glass-to-glass,
pansion of Plastics Between−30°C and 30°C With a
glass-to-plastic, and plastic-to-plastic. Interlayer materials are
5
Vitreous Silica Dilatometer
basically transparent adhesives with high-quality optical prop-
D792 TestMethodsforSpecificGravity(RelativeDensity)
erties. They can also serve as an energy absorbing medium, a
5
and Density of Plastics by Displacement
fail-safe membrane to contain cockpit pressure and to prevent
D1003 Test Method for Haze and LuminousTransmittance
entry of impact debris; a strain insulator to accommodate
5
of Transparent Plastics
different thermal expansion rates of members being laminated
D1004 Test Method for Initial Tear Resistance of Plastic
and as an adherent to prevent spalling of inner surface ply
5
Film and Sheeting
material fragments. The relative importance of an interlayer
D1045 Methods of Sampling andTesting Plasticizers Used
characteristicwillbeafunctionoftheprimeuseitservesinits
5
in Plastics
particular application.
D1204 Test Method for Linear Dimensional Changes of
1.3 Thisguide,asasummaryofvariousmethodsinSection
Nonrigid Thermoplastic Sheeting or Film at Elevated
2, is intended to facilitate the selection of tests that can be
5
Temperature
applied to interlayer materials.
D1824 Test Method for Apparent Viscosity of Plastisols
1.4 The test methods listed are for use in determining basic
and Organosols at Low Shear Rates by Brookfield Vis-
design characteristics and in assuring lot-to-lot uniformity of
5
cometer
the materials being tested except as noted in 3.3.
D 2240 Test Method for Rubber Property—Durometer
1.5 This standard does not purport to address all of the
4
Hardness
safety concerns, if any, associated with its use. It is the
D2766 Test Method for Specific Heat of Liquids and
responsibility of the user of this standard to establish appro-
6
Solids
priatesafetyandhealpracticesanddeterminetheapplicability
D2857 Test Method for Dilute Solution Viscosity of Poly-
of regulatory limitations prior to use.
7
mers
2. Referenced Documents D3167 Test Method for Floating Roller Peel Resistance of
8
Adhesives
2.1 ASTM Standards:
D3465 Test Method for Purity of Monomeric Plasticizers
C177 Test Method for Steady-State Heat Flux Measure-
7
by Gas Chromatography
ments and Thermal Transmission Properties by Means of
2
D3835 Test Method for Determination of Properties of
the Guarded Hot-Plate Apparatus
7
Polymeric Materials by Means of a Capillary Rheometer
D149 Test Method for Dielectric Breakdown Voltage and
E1640 Test Method forAssignment of the GlassTransition
Dielectric Strength of Solid Electrical Insulating Materials
9
3
Temperature by Dynamic Mechanical Analysis
at Commercial Power Frequencies
1
ThisguideisunderthejurisdictionofASTMCommitteeF07onAerospaceand
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Aircraft and is the direct responsibility of Subcommittee F07.08 on Transparent Annual Book of ASTM Standards, Vol 09.01.
5
Enclosures and Materials. Annual Book of ASTM Standards, Vol 08.01.
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Current edition approved May 10, 2002. Published June 2002. Originally Annual Book of ASTM Standards, Vol 05.02.
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published as F942–85. Last previous edition F942–93. Annual Book of ASTM Standards, Vol 08.02.
2 8
Annual Book of ASTM Standards, Vol 04.06. Annual Book of ASTM Standards, Vol 15.06.
3 9
Annual Book of ASTM Standards, Vol 10.01. Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F942
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...