ASTM D5479-94

Standard Practice for Testing Biofouling Resistance of Marine Coatings Partially Immersed

SCOPE
1.1 This practice covers a procedure to test a biofouling resistant coating systems or antifouling systems, or both, when subjected to in-situ partial immersion exposure. This enhances settlement of certain marine fouling organisms and increase the rate of possible physical deterioration.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Dec-1999
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.45 - Marine Coatings

Relations

• Replaced By: ASTM D5479-94(2000) - Standard Practice for Testing Biofouling Resistance of Marine Coatings Partially Immersed
• Effective Date: 01-Jan-2000
• Referred By: ASTM D6990-20 - Standard Practice for Evaluating Biofouling Resistance and Physical Performance of Marine Coating Systems
• Effective Date: 01-Jan-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5479 – 94
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Practice for
Testing Biofouling Resistance of Marine Coatings Partially
Immersed
This standard is issued under the fixed designation D 5479; 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 3.1.4 film(s)—each layer or coat of paint as applied to the
substrate or on top of another applied coat.
1.1 This practice covers a procedure to test a biofouling
3.1.5 system—cumulative total number of coating films,
resistant coating systems or antifouling systems, or both, when
which includes application of a primary film(s) for the purpose
subjected to in-situ partial immersion exposure. This enhances
of protecting the substrate from possible deterioration, or
settlement of certain marine fouling organisms and increase the
enhancing the adhesion of the biofouling resistant coating or
rate of possible physical deterioration.
antifouling coating to the primary film(s), or both.
1.2 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
4. Significance and Use
information only.
4.1 This test method is designed as a screening test to
1.3 This standard does not purport to address all of the
evaluate the performance of applied coating systems and other
safety concerns, if any, associated with its use. It is the
materials designed to resist biofouling settlement.
responsibility of the user of this standard to establish appro-
4.2 The degree and type of fouling will vary depending on
priate safety and health practices and determine the applica-
the environment. Differences in geographic location of test
bility of regulatory limitations prior to use.
sites, time of year when panels are exposed, and weather
2. Referenced Documents conditions from one year to the next, can affect results. Such
variables are accounted taking a fouling census on a nontoxic
2.1 ASTM Standards:
surface. For the exposure to be valid, the nontoxic surface
D 3623 Method of Testing Antifouling Panels in Shallow
2 should show heavy fouling accretion.
Submergence
D 4938 Test Method for Erosion Testing of Antifouling
5. Apparatus
Paints Using High Velocity Water
5.1 Floating Raft—The test panels shall be mounted on a
D 4939 Test Method for Subjecting Marine Antifouling
floating raft to maintain the correct position in the water.
Coating to Biofouling and Fluid Shear Forces in Natural
2 5.1.1 The floating raft shall be constructed with a minimal
Seawater
amount of decking to maximize sunlight exposure on the test
D 5108 Test Method for Organotin Release Rates of Anti-
2 panel’s surfaces.
fouling Coating Systems in Sea Water
5.2 Exposure Rack—Each rack will provide firm vertical
3. Terminology installation of several (4 to 8) test panels that must be
positioned in such a manner that the prevailing tidal currents
3.1 Definitions:
will move parallel to the panels’ surfaces.
3.1.1 Biofouling resistant coatings and antifouling coatings
5.2.1 The method of rack installation must provide a means
are interrelated; thus they are used in this practice interchange-
of easy but dependable height adjustment. The movement of
ably.
the lower (immersed) end of each rack is limited to 20° from
3.1.2 antifouling coatings—polymeric applied films engi-
the vertical.
neered to prevent marine fouling settlement due to inclusion of
5.2.2 Test panel racks should be constructed of plastic
antifouling compounds within its formulated matrix.
materials, or insulators must be utilized to prevent test panels
3.1.3 biofouling-resistant coatings—polymeric applied
from metallic contact.
films, engineered to prevent secured or permanent attachment
5.2.3 The distance between two racks (from panels’ surface)
of mar
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