ASTM D5722-08

Standard Practice for Performing Accelerated Outdoor Weathering of Factory- Coated Embossed Hardboard Using Concentrated Natural Sunlight and a Soak-Freeze-Thaw Procedure

SIGNIFICANCE AND USE
The ability to quickly and accurately evaluate and predict long-term weathering performance of factory-applied coatings is of paramount importance in making sound business and technical decisions.
It is important to include control specimens of known field performance to determine the efficacy of this practice for specific substrate(s) and coating system(s). These control specimens may include materials known to possess acceptable and unacceptable field performance for the defect(s) under consideration.
Results derived from this practice are best used to compare the relative performance of materials tested at the same time in the same device.
The inclusion of control specimens and their resulting data will assist in dealing with test variability caused by seasonal or annual variations in important climatic factors.
Extensive research was performed during the development of this standard practice. This research showed that this practice is not useful for determination of quantitative acceleration factors. However, this test is very useful as a comparative test.
A minimum of two replicates for both control specimens and test specimens is recommended to allow statistical evaluation of results. Refer to Practice G 169 for additional guidance on establishing the number of replicates.
SCOPE
1.1 This practice covers techniques to accelerate weathering effects of factory-coated embossed hardboard using Cycle 1 of Practice G 90 (concentrated natural sunlight with periodic surface water spray) plus a soak-freeze thaw cycle (see Section 5 of this practice).
1.2 Testing by use of the methods described in this practice may be employed in the qualitative assessment of weathering effects. The relative durability of coated hardboards may be best determined by comparison of their test results with those of control specimens derived from real time exposure test experience.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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: 30-Jun-2008
• ICS: 79.060.20 - Fibre and particle boards
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.27 - Accelerated Testing

Relations

• Replaces: ASTM D5722-03 - Standard Practice for Performing Accelerated Outdoor Weathering of Factory- Coated Embossed Hardboard Using Concentrated Natural Sunlight and a Soak-Freeze-Thaw Procedure
• Effective Date: 01-Jul-2008
• Replaced By: ASTM D5722-14 - Standard Practice for Performing Accelerated Outdoor Weathering of Factory-Coated Embossed Hardboard Using Concentrated Natural Sunlight and a Soak-Freeze-Thaw Procedure
• Effective Date: 01-Dec-2014
• Referred By: ASTM G90-23 - Standard Practice for Performing Accelerated Outdoor Weathering of Materials Using Concentrated Natural Sunlight
• Effective Date: 01-Jul-2008

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: D5722 − 08
StandardPractice for
Performing Accelerated Outdoor Weathering of Factory-
Coated Embossed Hardboard Using Concentrated Natural
1
Sunlight and a Soak-Freeze-Thaw Procedure
This standard is issued under the fixed designation D5722; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* ing) of Exterior Paints
D4214Test Methods for Evaluating the Degree of Chalking
1.1 Thispracticecoverstechniquestoaccelerateweathering
of Exterior Paint Films
effects of factory-coated embossed hardboard using Cycle 1 of
G90Practice for Performing Accelerated Outdoor Weather-
Practice G90 (concentrated natural sunlight with periodic
ing of Nonmetallic Materials Using Concentrated Natural
surfacewaterspray)plusasoak-freezethawcycle(seeSection
Sunlight
5 of this practice).
G113Terminology Relating to Natural andArtificial Weath-
1.2 Testing by use of the methods described in this practice
ering Tests of Nonmetallic Materials
may be employed in the qualitative assessment of weathering
G169Guide for Application of Basic Statistical Methods to
effects. The relative durability of coated hardboards may be
Weathering Tests
best determined by comparison of their test results with those
of control specimens derived from real time exposure test
3. Terminology
experience.
3.1 The terminology used in this practice is defined in
1.3 The values stated in SI units are to be regarded as the
Terminology G113.
standard. The values given in parentheses are for information
3.2 Definitions:
only.
3.2.1 hardboard, n—generic term for a panel manufactured
1.4 This standard does not purport to address all of the
primarily from inter-felted lignocellulosic fibers (usually
safety concerns, if any, associated with its use. It is the
wood), consolidated under heat and pressure in a hot press to
3 3
responsibility of the user of this standard to establish appro-
adensityof0.50g/cm (31lb/ft )orgreaterandtowhichother
priate safety and health practices and determine the applica-
materialsmayhavebeenaddedduringmanufacturetoimprove
bility of regulatory limitations prior to use.
certain properties.
3.2.2 embossed hardboard, n—hardboard that is manufac-
2. Referenced Documents
tured with a textured surface.
2
2.1 ASTM Standards:
3.2.2.1 Discussion—Wood-like and stucco patterns are ex-
D660Test Method for Evaluating Degree of Checking of
amples of typical embossed hardboard surfaces.
Exterior Paints
D661Test Method for Evaluating Degree of Cracking of
4. Summary of Practice
Exterior Paints
4.1 This practice is used to accelerate long-term weathering
D662Test Method for Evaluating Degree of Erosion of
effects by subjecting the samples to concentrated natural
Exterior Paints
sunlight (with periodic daytime surface water spray) plus a
D772Test Method for Evaluating Degree of Flaking (Scal-
soak-freeze-thaw cycle.
4.2 This practice has been useful in accelerating finish
1
failure involving loss of film integrity, such as cracking,
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of
peeling, and flaking of factory-coated embossed hardboard.
Subcommittee D01.27 on Accelerated Testing.
CurrenteditionapprovedJuly1,2008.PublishedJuly2008.Originallyapproved
5. Significance and Use
in 1995. Last previous edition approved in 2003 as D5722–03. DOI: 10.1520/
D5722-08.
5.1 The ability to quickly and accurately evaluate and
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
predict long-term weathering performance of factory-applied
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
coatings is of paramount importance in making sound business
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. and technical decisions.
*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

---------------------- Page: 1 ----------------------
D5722 − 08
5.2 It is important to include control specimens of known
field performance to determine the efficacy of this practice for
specific substrate(s) and coating system(s). These control
specimens may include materials known to possess acceptable
and unacceptable field performance for the defect(s) under
consideration.
5.3 Results derived from this practice are best used to
compare the relative performance of materials tested at the
same time in the same device.
5.4 The inclusion of control specimens and thei
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D5722–03 Designation:D5722–08
Standard Practice for
Performing Accelerated Outdoor Weathering of Factory-
Coated Embossed Hardboard Using Concentrated Natural
1
Sunlight and a Soak-Freeze-Thaw Procedure
This standard is issued under the fixed designation D5722; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1This practice covers techniques to accelerate weathering effects of factory-coated embossed hardboard using apparatus
described in Practice G90.
1.2This practice is based upon Cycle 1 of Practice G90 (concentrated natural sunlight with periodic surface water spray) plus
a soak-freeze-thaw cycle (see Section Scope*
1.1 This practice covers techniques to accelerate weathering effects of factory-coated embossed hardboard using Cycle 1 of
PracticeG90(concentratednaturalsunlightwithperiodicsurfacewaterspray)plusasoak-freezethawcycle(seeSection5ofthis
practice).
1.32 Testing by use of the methods described in this practice may be employed in the qualitative assessment of weathering
effects. The relative durability of coated hardboards may be best determined by comparison of their test results with those of
pass-fail control specimens derived from real time exposure test experience (see 8.2 for specific guidelines). experience.
1.4The1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information
only.
1.51.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D660Test Method for Evaluating Degree of Checking of Exterior Paints Test Methods for Chemical Resistance and Physical
Properties of Carbon Brick
D661Test Method for Evaluating Degree of Cracking of Exterior Paints Test Methods for Chemical Resistance and Physical
Properties of Carbon Brick
D662Test Method for Evaluating Degree of Erosion of Exterior Paints Test Methods for Chemical Resistance and Physical
Properties of Carbon Brick
D772Test Method for Evaluating Degree of Flaking (Scaling) of Exterior Paints Test Methods for Chemical Resistance and
Physical Properties of Carbon Brick
D4214TestMethodsforEvaluatingtheDegreeofChalkingofExteriorPaintFilms TestMethodsforChemicalResistanceand
Physical Properties of Carbon Brick
G90Practice for Performing Accelerated Outdoor Weathering of Nonmetallic Materials Using Concentrated Natural Sunlight
Test Methods for Chemical Resistance and Physical Properties of Carbon Brick
G113Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials Test Methods for Chemical
Resistance and Physical Properties of Carbon Brick
G169 Test Methods for Chemical Resistance and Physical Properties of Carbon Brick
3. Terminology
3.1 The terminology used in this practice is defined in Terminology G113.
1
This practice is under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.27 on Accelerated Testing.
Current edition approved Oct.July 1, 2003.2008. Published October 2003.July 2008. Originally approved in 1995. Last previous edition approved in 19952003 as
D5722–95.D5722–03.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] 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

---------------------- Page: 1 ----------------------
D5722–08
3.2 Definitions:
3.2.1 hardboardhardboard, n—generic term for a panel manufactured primarily from inter-felted lignocellulosic fibers (usually
3 3
wood), consolidated under heat and pressure in a hot press to a density of 0.50 g/cm (31 lb/ft ) or greater and to which other
materials may have been added during manufacture to improve certain properties.
3.2.2 embossed hardboardembossed hardboard, n—hardboard that is manufactured with a textur
...