ASTM D6864-03a
(Specification)Standard Specification for Color and Appearance Retention of Solid Colored Plastic Siding Products
Standard Specification for Color and Appearance Retention of Solid Colored Plastic Siding Products
SCOPE
1.1 This specification establishes requirements and test methods for the color and appearance retention of solid colored plastic siding products.
1.2 Color retention testing provides a method for estimating the acceptability of color change in a siding product over a period of years of service.
1.3 Methods of indicating compliance with this specification are provided.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 6864 – 03a
Standard Specification for
Color and Appearance Retention of Solid Colored Plastic
1
Siding Products
This standard is issued under the fixed designation D 6864; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification establishes requirements and test 3.1 Definitions—Definitions are in accordance with Termi-
methods for the color and appearance retention of solid colored nologies D 883 and D 1600 unless otherwise noted.
plastic siding products. 3.2 Definitions of Terms Specific to This Standard:
1.2 Color retention testing provides a method for estimating 3.2.1 color region—parameters that define the color space
the acceptability of color change in a siding product over a for a siding measured with Hunter Units, Illuminant C, 2°
period of years of service. observer, specular component included.
1.3 Methods of indicating compliance with this specifica- 3.2.1.1 Discussion—The color values used to classify colors
tion are provided. by region will be established by measuring the Hunter L, a, b
color values from the sample population, calculating the
2. Referenced Documents
average for Hunter L, a, b, and then choosing the integer from
2
2.1 ASTM Standards: the corresponding L, a, b average values (that is, no rounding
D 883 Terminology Relating to Plastics
up or down) to be used to classify colors by region.
D 1435 Practice for Outdoor Weathering of Plastics 3.2.2 ellipsoid value—a mathematical calculation derived
D 1600 Terminology for Abbreviated Terms Related to
by inserting the measured DL, Da, and Db values of a
Plastics weathered specimen into an ellipsoid equation.
D 2244 Test Method for Calculation of Color Differences
3.2.3 Region 1—Brown:
from Instrumentally Measured Color Coordinates
L = 20 to 49
a=−1to5
D 3679 Specification for Rigid Poly Vinyl Chloride (PVC)
b=2to11
Siding
E 805 Practice for Identification of Instrumental Methods of 3.2.4 Region 2—Medium Blue:
Color or Color-Difference, Measurement of Materials
L = 45 to 64
a=−8to1
G 147 Practice for Conditioning and Handling of Nonme-
b = −12 to −2
tallic Materials for Natural and Artificial Weathering Tests
3.2.5 Region 3—Light Blue:
2.2 Other Reference:
Vinyl Siding Institute (VSI) Technical Research Report for
L = 65 to 89
a=−8to1
Weatherability of Vinyl Siding Products, VS2W
b = −12 to −2
NOTE 1—This report supports the conclusion that commercial vinyl
3.2.6 Region 4—Green:
siding products which demonstrate weathering behavior within conform-
L = 50 to 84
ance to these standards during a two year test program can be anticipated
a = −12 to −1
to provide acceptable color retention properties for the expected life of the
b=−1to10
product.
3.2.7 Region 5—Medium Beige:
L = 50 to 74 L = 50 to 64 L = 65 to 74
a=0to1 a=−2to1 a=−7to0
1
This specification is under the jurisdiction of ASTM Committee D20 on
b=4to12 b=11to14 b=11to12
Plastics and is the direct responsibility of Subcommittee D20.24 on Plastic Building
Products.
3.2.8 Region 6—Light Beige:
Current edition approved May 10, 2003. Published June 2003. Originally
e1 L = 75 to 84 L = 85 to 93 L = 75 to 84
approved in 2003. Last previous addition approved in 2003 as D6864–03 .
a=0to1 a=−7to1 a=−7to−1
2
b=4to12 b=4to12 b=11to12
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3.2.9 Region 7—Gold:
Standards volume information, refer to the standard’s Document Summary page on
L = 65 to 93
the ASTM website.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D 6864 – 03a
2 2 2
a=0to4 ~DL 1 0.3! ~Da 1 0.1! ~Db 2 0.8!
1 1 5 Ellipsoid Value
b=13to 2 2 2
~6.4! ~2.7! ~4.3!
30
4.1.5 Region 4—Green:
3.2.10 Region 8—Yellow:
2 2 2
DL – 0.2 Da 2 0.8 Db 2 0.2
~ ! ~ ! ~ !
L = 65 to 93
1 1 5 Ellipsoid Value
2 2 2
a = −10 to −1
~5.9! ~4.8! ~5.6!
b=13to30
4.1.6 Region 5—Medium Beige:
3.2.11 Region 9—White:
2 2 2
~DL 1 0.4! ~Da 2 0.0! ~Db 2 0.0!
L = 85 to 100 All L = 94 to 100
1 1 5 Ellipsoid Value
2 2 2
a=−2to1 ~5.8! ~2.8! ~4.0!
b=−1to3
4.1.7 Region 6—Light Beige:
3.2.12 Region 10—Light Gray:
2 2 2
~DL 2 0.0! ~Da 2 0.2! ~Db 2 0.3!
1 1 5 Ellipsoid Value
L = 65 to 84
2 2 2
~5.0! ~2.6! ~5.4!
a=0to1
b=−1to3
4.1.8 Region 7—Gold:
2 2 2
3.2.13 Region 11—Mauve:
~DL 1 0.6! ~D
...
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