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ASTM F735-06

(Test Method)

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

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

SIGNIFICANCE AND USE
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 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.

General Information

Status
Historical
Publication Date
31-Oct-2006
ICS
25.220.60 - Organic coatings
Technical Committee
F07 - Aerospace and Aircraft
Drafting Committee
F07.08 - Transparent Enclosures and Materials
Current Stage
Ref Project

Relations

Replaces
ASTM F735-94(2001) - Standard Test Method for Abrasion Resistance of Transparent Plastics and Coatings Using the Oscillating Sand Method
Effective Date
01-Nov-2006
Replaced By
ASTM F735-11 - Standard Test Method for Abrasion Resistance of Transparent Plastics and Coatings Using the Oscillating Sand Method
Effective Date
01-Dec-2011
Referred By
ASTM F790-23 - Standard Guide for Testing Materials for Aerospace Plastic Transparent Enclosures
Effective Date
01-Nov-2006

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ASTM F735-06 - Standard Test Method for Abrasion Resistance of Transparent Plastics and Coatings Using the Oscillating Sand MethodASTM F735-06 - Standard Test Method for Abrasion Resistance of Transparent Plastics and Coatings Using the Oscillating Sand Method
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ASTM F735-06 - Standard Test Method for Abrasion Resistance of Transparent Plastics and Coatings Using the Oscillating Sand Method
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F735–06
Standard Test Method for
Abrasion Resistance of Transparent Plastics and Coatings
1
Using the Oscillating Sand Method
ThisstandardisissuedunderthefixeddesignationF735;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope because of its inertia; therefore the relative motion between
sand and specimen at the interface is large.
1.1 This test method determines the resistance of transpar-
3.3 The thickness or height of the sand resting on top of the
ent plastics and transparent coatings utilized in windows or
test specimen remains relatively constant during the motion of
viewing ports, to surface abrasion using oscillating sand.
the cradle. Therefore, the average pressure of the sand also
1.2 This standard does not purport to address all of the
remains constant, giving highly reproducible results over the
safety concerns, if any, associated with its use. It is the
entire surface of the test specimen.
responsibility of the user of this standard to establish appro-
3.4 The degree of abrasion is measured by the amount of
priate safety and health practices and determine the applica-
changeinluminoustransmissionandhazeafterexposuretothe
bility of regulatory limitations prior to use.
test.
2. Referenced Documents
4. Significance and Use
2
2.1 ASTM Standards:
4.1 Plastic materials, when used as transparencies, covers,
C136 Test 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
D618 Practice for Conditioning Plastics for Testing
method to provide a means of estimating the resistance of such
D1003 Test Method for Haze and Luminous Transmittance
materials to this type and degree of abrasion.
of Transparent Plastics
E11 SpecificationforWovenWireTestSieveClothandTest
5. Apparatus
Sieves
5.1 Abrader—The abrader consists of a specimen holder,
3. Summary of Test Method sand cradle, drive mechanism, variable power supply and
counter. One such example is shown in Fig. 1.
3.1 Thetestmethodconsistsofmeasuringandrecordingthe
5.1.1 The specimen holder shall have a cutout approxi-
haze and light transmission of a test specimen, mounting the
mately 100 by 100 mm (4 by 4 in.) to receive the specimen.
specimen so that it forms part of the bottom tray (sand cradle),
The specimen shall be mounted flush to within 1 mm (0.04 in.)
covering the specimen with abrading media, and subjecting the
high with the specimen holder.
cradle to a specific number of oscillations. After exposure to
5.1.2 The specimen holder forms the bottom of the sand
the abrasion, the haze and light transmission are remeasured to
cradle.
determine any change in these values.
5.1.3 Sufficient abradent will be used to fill the sand cradle
3.2 At the stroke velocity specified in this practice, the
13-mm (0.50 in.) above the sample surface.
entire mass of sand shifts significantly within the sand cradle
5.1.4 A drive mechanism shall provide 300 strokes per
minute of reciprocating motion of approximately 100-mm
1
This test method is under the jurisdiction of ASTM Committee F07 on
(4-in.) travel. Motion in one direction is defined as one stroke.
Aerospace and Aircraft and is the direct responsibility of Subcommittee F07.08 in
One forward stroke and one reverse stroke is defined as one
Transparent Enclosures and Materials.
oscillation.
Current edition approved Nov. 1, 2006. Published December 2006. Originally
approvedin1981.Lastpreviouseditionapprovedin2001asF735 – 94(2001).DOI:
5.1.5 Avariablepowersupplyshallbeutilizedtocontrolthe
10.1520/F0735-06.
abrader motor to operate at 300 strokes per minute.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1.6 A counter shall record the number of strokes during a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
test.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
F735–06
FIG. 1 Oscillating Sand Abrader
TABLE 1 Properties
5.2 Photometer—An integrating sphere photoelectric pho-
E11 Sieve Designation
Mean % on Standard De- Cululative %
tometer, described in Test Method D1003, shall be used to
Sieve viation, % Retained, Mean
U.S. No mm
measure the light scattered by the abraded surface.
4 4.75 0 0
6 3.35 7.6 7.6
6. Reagents and Materials
7 2.8 22.3 29.9
8 2.36 45.1 75.0
3
6.1 Abrading Medium—Quartz Sand —The sand shal
...

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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.
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This specification covers poly(vinyl chloride)(PVC) and other conforming organic polymer-coated steel barbed wire consisting of two polymer-coated strands, with four-point barbs of zinc-coated steel or aluminum alloy wire used with chain-link fence. PVC and other organic polymer coatings hereinafter will be designated as polymer coating. Barbed wire strand wire, produced from three classes of wire coatings, is covered as follows: class 1 - polymer coating extruded over zinc-coated or aluminum-coated or zinc-5 % aluminum-mischmetal alloy-coated steel wire; class 2a - polymer coating extruded and adhered to zinc-coated or aluminum-coated or zinc-5 % aluminum-mischmetal alloy-coated steel wire; and class 2b - polymer coating fused and adhered to zinc-coated or aluminum-coated or zinc-5 % aluminum-mischmetal alloy-coated steel wire. Polymer-coated steel barbed wire is supplied in a choice of two types as follows: type I - standard, and type II - high security. Breaking strength of the stranded barbed wire shall be tested to meet the requirements prescribed. Adhesion test, accelerated aging test, and color test shall be made to meet the requirements prescribed.
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3.1 These test methods can be used to determine the various stages and rates of drying, curing, and film formation of organic coatings for comparing types of coatings, assessing the impact of compositional changes on drying time, or for assessing drying/curing time in the shop or field. Low temperature can significantly slow the drying rate of coatings so low temperature curing agents, catalysts and/or accelerators are often available to aid drying and film formation under cooler temperatures. Method B is designed to evaluate these components and/or to determine the effect of cooler temperatures on drying rates. Conversely, the drying/curing rate of certain coatings can be accelerated under elevated temperature/humidity conditions, while others may be adversely impacted by elevated humidity. Method C is designed to evaluate the effects of elevated temperature and relative humidity conditions on drying, curing, and film formation of paints and coatings. The terms dry or drying, cure or curing, and film formation are used interchangeably throughout this standard.  
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SCOPE
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Standard Test Method for Nondestructive Measurement of Dry Film Thickness of Applied Organic Coatings Using an Ultrasonic Coating Thickness Gage

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5.1 Many coating properties are markedly affected by the film thickness of the dry film such as adhesion, flexibility, wear, durability, chemical resistance, and hardness. To be able to compare results obtained by different operators, it is essential to measure film thickness carefully.  
5.2 Most protective and high performance coatings are applied to meet a requirement or a specification for the dry-film thickness of each coat, or for the complete system, or both. Coatings must be applied within certain minimum and maximum thickness tolerances in order that they can fulfill their intended function. In addition to potential performance deficiencies, it is uneconomical to apply more material than necessary when coating large areas such as floors and walls.  
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