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

SIGNIFICANCE AND USE
5.1 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.  
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 their resulting data will assist in dealing with test variability caused by seasonal or annual variations in important climatic factors.  
5.5 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.  
5.6 A minimum of two replicates for both control specimens and test specimens is recommended to allow statistical evaluation of results. Refer to Practice G169 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 G90 (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 either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
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-Nov-2014
• 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 D5722-08 - 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-Dec-2014

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 − 14
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 D662Test Method for Evaluating Degree of Erosion of
Exterior Paints
1.1 Thispracticecoverstechniquestoaccelerateweathering
D772Test Method for Evaluating Degree of Flaking (Scal-
effects of factory-coated embossed hardboard using Cycle 1 of
ing) of Exterior Paints
Practice G90 (concentrated natural sunlight with periodic
D4214Test Methods for Evaluating the Degree of Chalking
surfacewaterspray)plusasoak-freezethawcycle(seeSection
of Exterior Paint Films
5 of this practice).
G90Practice for Performing Accelerated Outdoor Weather-
1.2 Testing by use of the methods described in this practice
ing of Nonmetallic Materials Using Concentrated Natural
may be employed in the qualitative assessment of weathering
Sunlight
effects. The relative durability of coated hardboards may be
G113Terminology Relating to Natural andArtificial Weath-
best determined by comparison of their test results with those
ering Tests of Nonmetallic Materials
of control specimens derived from real time exposure test
G169Guide for Application of Basic Statistical Methods to
experience.
Weathering Tests
1.3 The values stated in either SI units or inch-pound units
3. Terminology
are to be regarded separately as standard. The values stated in
3.1 The terminology used in this practice is defined in
each system may not be exact equivalents; therefore, each
Terminology G113.
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
3.2 Definitions:
with the standard.
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
wood), consolidated under heat and pressure in a hot press to
safety concerns, if any, associated with its use. It is the
3 3
a density of 500 kg/m (31 lb/ft ) or greater and to which other
responsibility of the user of this standard to establish appro-
materialsmayhavebeenaddedduringmanufacturetoimprove
priate safety and health practices and determine the applica-
certain properties.
bility of regulatory limitations prior to use.
3.2.2 embossed hardboard, n—hardboard that is manufac-
2. Referenced Documents
tured with a textured surface.
2
3.2.2.1 Discussion—Wood-like and stucco patterns are ex-
2.1 ASTM Standards:
amples of typical embossed hardboard surfaces.
D660Test Method for Evaluating Degree of Checking of
Exterior Paints
4. Summary of Practice
D661Test Method for Evaluating Degree of Cracking of
4.1 This practice is used to accelerate long-term weathering
Exterior Paints
effects by subjecting the samples to concentrated natural
sunlight (with periodic daytime surface water spray) plus a
1
soak-freeze-thaw cycle.
This practice is under the jurisdiction of ASTM Committee D01 on Paint and
Related Coatings, Materials, and Applications and is the direct responsibility of
4.2 This practice has been useful in accelerating finish
Subcommittee D01.27 on Accelerated Testing.
failure involving loss of film integrity, such as cracking,
Current edition approved Dec. 1, 2014. Published January 2015. Originally
approved in 1995. Last previous edition approved in 2008 as D5722–08. DOI:
peeling, and flaking of factory-coated embossed hardboard.
10.1520/D5722-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5. Significance and Use
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.1 The ability to quickly and accurately evaluate and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. predict long-term weathering performance of factory-applied
*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 − 14
coatings is of paramount importance in making sound business
and technical decisions.
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) u
...

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: D5722 − 08 D5722 − 14
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. 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*Scope
1.1 This practice covers techniques to accelerate weathering effects of factory-coated embossed hardboard using Cycle 1 of
Practice G90 (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 either SI units or inch-pound units are to be regarded separately as the standard. The values given in
parentheses are for information only. stated in each system may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D660 Test Method for Evaluating Degree of Checking of Exterior Paints
D661 Test Method for Evaluating Degree of Cracking of Exterior Paints
D662 Test Method for Evaluating Degree of Erosion of Exterior Paints
D772 Test Method for Evaluating Degree of Flaking (Scaling) of Exterior Paints
D4214 Test Methods for Evaluating the Degree of Chalking of Exterior Paint Films
G90 Practice for Performing Accelerated Outdoor Weathering of Nonmetallic Materials Using Concentrated Natural Sunlight
G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
G169 Guide for Application of Basic Statistical Methods to Weathering Tests
3. Terminology
3.1 The terminology used in this practice is defined in Terminology G113.
3.2 Definitions:
3.2.1 hardboard, n—generic term for a panel manufactured primarily from inter-felted lignocellulosic fibers (usually wood),
3 3
consolidated under heat and pressure in a hot press to a density of 0.50 g/cm500 kg/m (31 lb/ft ) or greater and to which other
materials may have been added during manufacture to improve certain properties.
3.2.2 embossed hardboard, n—hardboard that is manufactured with a textured surface.
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 July 1, 2008Dec. 1, 2014. Published July 2008January 2015. Originally approved in 1995. Last previous edition approved in 20032008 as
D5722 – 03.D5722 – 08. DOI: 10.1520/D5722-08.10.1520/D5722-14.
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’sstandard’s Document Summary page on the ASTM website.
3.2.2.1 Discussion—
*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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D5722 − 14
Wood-like and stucco patterns are examples of typical embossed hardboard surfaces.
4. Summary of Practice
4.1 This practice is used to accelerate long-term weathering effects by subjecting the samples to concentrated natural sunlight
(with periodic daytime surface water spray) plus a soak-freeze-thaw cycle.
4.2 This practice has been useful in accelerating finish failure involving loss of film integrity, such as cracking, peeling, and
flaking of factory-coated embossed hardboard.
5. Significance and Use
5.1 The ability to quickly and accurately evaluate
...