ASTM F735-22

Standard Test Method for Abrasion Resistance of Transparent Plastics and Coatings Using the Oscillating Sand Method

SIGNIFICANCE AND USE
4.1 Plastic materials, when used as transparencies, covers, or enclosures, are subject to wiping, cleaning, or other types of rubbing actions that cause abrasion. It is the intent of this test method to provide a means of estimating the resistance of such materials to this type and degree of abrasion.
SCOPE
1.1 This test method determines the resistance of transparent plastics and transparent coatings utilized in windows or viewing ports to surface abrasion using oscillating sand.  
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Apr-2022
• ICS: 25.220.60 - Organic coatings
• Technical Committee: F07 - Aerospace and Aircraft
• Drafting Committee: F07.08 - Transparent Enclosures and Materials

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F735 − 22
Standard Test Method for
Abrasion Resistance of Transparent Plastics and Coatings
1
Using the Oscillating Sand Method
ThisstandardisissuedunderthefixeddesignationF735;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 3. Summary of Test Method
1.1 This test method determines the resistance of transpar- 3.1 Thetestmethodconsistsofmeasuringandrecordingthe
ent plastics and transparent coatings utilized in windows or haze and light transmission of a test specimen, mounting the
viewing ports to surface abrasion using oscillating sand. specimen so that it forms part of the bottom tray (sand cradle),
coveringthespecimenwithabradingmedia,andsubjectingthe
1.2 Units—The values stated in SI units are to be regarded
cradle to a specific number of oscillations. At specified
asstandard.Nootherunitsofmeasurementareincludedinthis
intervals, the test specimen is cleaned then the haze and light
standard.
transmission are remeasured to determine any change in these
1.3 This standard does not purport to address all of the
values. The degree of surface abrasion is determined by the
safety concerns, if any, associated with its use. It is the
amount of change in light transmission and haze.
responsibility of the user of this standard to establish appro-
3.2 At the stroke velocity specified in this test method, the
priate safety, health, and environmental practices and deter-
entire mass of sand shifts significantly within the sand cradle
mine the applicability of regulatory limitations prior to use.
because of its inertia; therefore, the relative motion between
1.4 This international standard was developed in accor-
sand and specimen at the interface is large.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3.3 The thickness or height of the sand resting on top of the
Development of International Standards, Guides and Recom-
test specimen remains relatively constant during the motion of
mendations issued by the World Trade Organization Technical
the cradle. Therefore, the average pressure of the sand also
Barriers to Trade (TBT) Committee.
remains constant, giving highly reproducible results over the
entire surface of the test specimen.
2. Referenced Documents
4. Significance and Use
2
2.1 ASTM Standards:
4.1 Plastic materials, when used as transparencies, covers,
C136Test Method for Sieve Analysis of Fine and Coarse
or enclosures, are subject to wiping, cleaning, or other types of
Aggregates
rubbing actions that cause abrasion. It is the intent of this test
D618Practice for Conditioning Plastics for Testing
methodtoprovideameansofestimatingtheresistanceofsuch
D1003Test Method for Haze and Luminous Transmittance
materials to this type and degree of abrasion.
of Transparent Plastics
E11Specification forWovenWireTest Sieve Cloth andTest
5. Apparatus
Sieves
5.1 Abrader—The abrader consists of a specimen holder,
E177Practice for Use of the Terms Precision and Bias in
sand cradle, drive mechanism, and counter. One such example
ASTM Test Methods
is shown in Fig. 1.
E691Practice for Conducting an Interlaboratory Study to
5.1.1 The specimen holder shall have a cutout approxi-
Determine the Precision of a Test Method
mately 100mm by 100mm to receive the specimen. Alterna-
tive specimen holders can be used to test other specimen sizes
1
This test method is under the jurisdiction of ASTM Committee F07 on
as long as they can be used within the testing limitations
Aerospace andAircraft and is the direct responsibility of Subcommittee F07.08 on
defined in this test method.
Transparent Enclosures and Materials.
5.1.2 The specimen holder forms the bottom of the sand
Current edition approved May 1, 2022. Published May 2022. Originally
cradle.
approved in 1981. Last previous edition approved in 2017 as F735–17. DOI:
10.1520/F0735-22.
5.1.3 The sand cradle shall be approximately 250mm ×
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
250mm × 50 mm, with the sides set at an angle of 60°.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.1.4 A drive mechanism shall provide 300 strokes per
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. minute of reciprocating motion of approximately 100mm
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West C
...

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: F735 − 17 F735 − 22
Standard Test Method for
Abrasion Resistance of Transparent Plastics and Coatings
1
Using the Oscillating Sand Method
This standard is issued under the fixed designation F735; 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.
1. Scope*
1.1 This test method determines the resistance of transparent plastics and transparent coatings utilized in windows or viewing
ports,ports to surface abrasion using oscillating sand.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.2.1 Exception—The inch-pound units in parentheses are provided for information only.
1.3 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
D618 Practice for Conditioning Plastics for Testing
D1003 Test Method for Haze and Luminous Transmittance of Transparent Plastics
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Summary of Test Method
3.1 The test method consists of measuring and recording the haze and light transmission of a test specimen, mounting the
specimen so that it forms part of the bottom tray (sand cradle), covering the specimen with abrading media, and subjecting the
cradle to a specific number of oscillations. After exposure to the abrasion, At specified intervals, the test specimen is cleaned then
1
This test method is under the jurisdiction of ASTM Committee F07 on Aerospace and Aircraft and is the direct responsibility of Subcommittee F07.08 on Transparent
Enclosures and Materials.
Current edition approved June 1, 2017May 1, 2022. Published July 2017May 2022. Originally approved in 1981. Last previous edition approved in 20112017 as
F735 – 11.F735 – 17. DOI: 10.1520/F0735-17.10.1520/F0735-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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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F735 − 22
the haze and light transmission are remeasured to determine any change in these values. The degree of surface abrasion is
determined by the amount of change in light transmission and haze.
3.2 At the stroke velocity specified in this test method, the entire mass of sand shifts significantly within the sand cradle because
of its inertia; therefore, the relative motion between sand and specimen at the interface is large.
3.3 The thickness or height of the sand resting on top of the test specimen remains relatively constant during the motion of the
cradle. Therefore, the average pressure of the sand also remains constant, giving highly reproducible results over the entire surface
of the test specimen.
3.4 The degree of abrasion is measured by the amount of change in luminous transmission and haze after exposure to the test.
4. Significance and Use
4.1 Plastic materials, when used as transparencies, covers, or enclosures, are subject to wiping, cleaning, or other types of rubbing
actions that cause abrasion. It is the intent of this test method to provide a means of estimating the resistance of such materials
to this type and degree of abrasion.
5. Apparatus
5.1 Abrader—The abrader consists of
...