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ASTM D5618-94(2011)

(Test Method)

Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear (Withdrawn 2020)

Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear (Withdrawn 2020)

SIGNIFICANCE AND USE
This test method is designed as a screening test in the evaluation of coating systems and other materials designed to resist biofouling attachment.
The degree and type of barnacle fouling will vary according to the geographic location of test sites and the time of year when tests are implemented. Surfaces with known barnacle adhesive shear strength should be exposed to provide comparative data.
SCOPE
1.1 This test method covers the measurement of barnacle adhesion in shear to surfaces exposed in the marine environment. It is used to establish the ability of a surface to reduce biofouling adhesion. Surfaces with known barnacle adhesion strengths are included to serve as controls.
1.2 The values stated in SI 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-May-2011
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.45 - Marine Coatings
Current Stage
Ref Project

Relations

Replaces
ASTM D5618-94(2005) - Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear
Effective Date
01-Jun-2011
Replaced By
ASTM D5618-20 - Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear
Effective Date
01-Sep-2020
Referred By
ASTM D6990-20 - Standard Practice for Evaluating Biofouling Resistance and Physical Performance of Marine Coating Systems
Effective Date
01-Jun-2011

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ASTM D5618-94(2011) - Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear (Withdrawn 2020)ASTM D5618-94(2011) - Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear (Withdrawn 2020)
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ASTM D5618-94(2011) - Standard Test Method for Measurement of Barnacle Adhesion Strength in Shear (Withdrawn 2020)
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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: D5618 − 94 (Reapproved 2011)
Standard Test Method for
Measurement of Barnacle Adhesion Strength in Shear
This standard is issued under the fixed designation D5618; 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 plate. This test method is most suited to small barnacles
(generally with base diameters between 5 to 20 mm).
1.1 This test method covers the measurement of barnacle
3.2 The diameter of the barnacle base is measured and an
adhesion in shear to surfaces exposed in the marine environ-
ment. It is used to establish the ability of a surface to reduce increasing shear force is applied to the base of the barnacle
until it is removed from the surface.
biofouling adhesion. Surfaces with known barnacle adhesion
strengths are included to serve as controls.
4. Significance and Use
1.2 The values stated in SI units are to be regarded as the
4.1 This test method is designed as a screening test in the
standard. The values given in parentheses are for information
evaluation of coating systems and other materials designed to
only.
resist biofouling attachment.
1.3 This standard does not purport to address all of the
4.2 The degree and type of barnacle fouling will vary
safety concerns, if any, associated with its use. It is the
according to the geographic location of test sites and the time
responsibility of the user of this standard to establish appro-
of year when tests are implemented. Surfaces with known
priate safety and health practices and determine the applica-
barnacle adhesive shear strength should be exposed to provide
bility of regulatory limitations prior to use.
comparative data.
2. Referenced Documents 5. Interferences
2.1 ASTM Standards: 5.1 Variations in barnacle adhesion strength may occur due
D3623 Test Method for Testing Antifouling Panels in Shal- to differences in species, age, and physical condition.
low Submergence
5.2 Incomplete removal of the barnacle base plate from the
2.2 U.S. Military Specifications:
surface during testing may lead to erroneous adhesion values.
MIL-P-24441/1 Primer, Epoxy (Formula 150, Formula
5.3 Care must be taken not to dislodge the barnacle during
Sheet 24441/1)
base diameter measurements.
6. Apparatus
3. Summary of Test Method
6.1 Hand-Held Probe, used to apply force to the barnacle
3.1 Test surfaces and coatings are immersed in the marine
base. It is recommended that a 14- by 14-mm stainless steel
environmentaccordingtoTestMethodD3623.Whenbarnacles
plate be attached to the end of a 8-mm diameter stainless steel
are observed to have settled on the surface, the strength of
rod that is attached to a force measuring device (see Fig. 1).
adhesion of individuals is measured. Barnacle adhesive shear
strength is calculated by dividing the shear force required to
6.2 Force Measuring Device, maybe a spring scale or force
remove the barnacle by the surface area of the barnacle base
transducer.
6.2.1 The force measuring device should be capable of
recordingvaluesbetween0to150N(0to34lb)toanaccuracy
This test method is under the jurisdiction of ASTM Committee D01 on Paint
of 60.5N(60.1125 lb).
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.45 on Marine Coatings. 7. Procedure
Current edition approved June 1, 2011. Published June 2011. Originally
7.1 Test and control surfaces are immersed in the marine
approved in 1994. Last previous edition approved in 2005 as D5618 – 94 (2005).
environment according to Test Method D3623. Control sur-
DOI: 10.1520/D5618-94R11.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
faces should include polytetrafluoroethylene and MIL-P-24441
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
primer epoxy.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Swain, G. W. J., Griffith, J., Bultman, D., and Vincent, H., “ BarnacleAdhesion
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:// Measurements for the Field Evaluation of Candidate Antif
...

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