ASTM D1654-08(2016)e1

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
´1
Designation: D1654 − 08 (Reapproved 2016)
Standard Test Method for
Evaluation of Painted or Coated Specimens Subjected to
Corrosive Environments
This standard is issued under the fixed designation D1654; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
ε NOTE—Typos in Section 8 were corrected editorially in May 2017.
1. Scope sures of Paint and Related Coatings
D870 Practice for Testing Water Resistance of Coatings
1.1 This test method covers the treatment of previously
Using Water Immersion
painted or coated specimens for accelerated and atmospheric
D1014 Practice for Conducting Exterior Exposure Tests of
exposure tests and their subsequent evaluation in respect to
Paints and Coatings on Metal Substrates
corrosion,blisteringassociatedwithcorrosion,lossofadhesion
D1735 Practice for Testing Water Resistance of Coatings
at a scribe mark, or other film failure.
Using Water Fog Apparatus
1.2 The values stated in SI units are to be regarded as the
D2247 Practice for Testing Water Resistance of Coatings in
standard. The values given in parentheses are for information
100 % Relative Humidity
only.
D2803 Guide for Testing Filiform Corrosion Resistance of
1.3 This standard does not purport to address all of the
Organic Coatings on Metal
safety concerns, if any, associated with its use. It is the D4141 Practice for Conducting Black Box and Solar Con-
responsibility of whoever uses this standard to consult and
centrating Exposures of Coatings
establish appropriate safety and health practices and deter- D4585 Practice for Testing Water Resistance of Coatings
mine the applicability of regulatory limitations prior to use.
Using Controlled Condensation
1.4 This international standard was developed in accor- D4587 Practice for Fluorescent UV-Condensation Expo-
dance with internationally recognized principles on standard-
sures of Paint and Related Coatings
ization established in the Decision on Principles for the D5894 Practice for Cyclic Salt Fog/UV Exposure of Painted
Development of International Standards, Guides and Recom- Metal, (Alternating Exposures in a Fog/Dry Cabinet and a
mendations issued by the World Trade Organization Technical
UV/Condensation Cabinet)
Barriers to Trade (TBT) Committee. D6695 Practice for Xenon-Arc Exposures of Paint and
Related Coatings
2. Referenced Documents
D7087 Test Method for An Imaging Technique to Measure
Rust Creepage at Scribe on Coated Test Panels Subjected
2.1 ASTM Standards:
to Corrosive Environments
B117 Practice for Operating Salt Spray (Fog) Apparatus
E3 Guide for Preparation of Metallographic Specimens
D610 Practice for Evaluating Degree of Rusting on Painted
G85 Practice for Modified Salt Spray (Fog) Testing
Steel Surfaces
G87 Practice for Conducting Moist SO Tests
D714 Test Method for Evaluating Degree of Blistering of
2.2 ANSI Standard:
Paints
B94.50 Single-Point Cutting Tools, Basic Nomenclature and
D822 Practice for Filtered Open-Flame Carbon-Arc Expo-
Definitions for
3. Terminology
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
3.1 paint removal material, n—a device or substance that is
Subcommittee D01.25 on Evaluation of Weathering Effects.
used to remove loose coating around a scribe.
Current edition approved Dec. 1, 2016. Published December 2016. Originally
approved in 1959. Last previous edition approved in 2008 as D1654 – 08. DOI:
3.2 rust creepage or undercutting, n—corrosion of a sub-
10.1520/D1654-08R16E01.
strate that occurs around a damaged area of a coated material.
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
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
D1654 − 08 (2016)
3.3 scribe, n—a linear, intentionally prepared damaged area 6. Preliminary Treatment of Test Specimens
on a coated material that extends down to the substrate.
6.1 Scribed Specimens:
3.4 scribing tool, n—a tool used to prepare a scribe on a
6.1.1 Where specified or agreed upon, prepare each speci-
coated material.
men for testing by scribing it in such a manner that the scribe
can be exposed lengthwise when positioned in the test cabinet.
3.5 zone of corrosion, n—area of corrosion of a substrate.
This position will allow solution droplets to run lengthwise
4. Significance and Use along the scribe.
6.1.2 Scribe the specimen by holding the tool at approxi-
4.1 This method provides a means of evaluating and com-
mately a 70 to 90° angle to the surface with the upper end of
paring basic corrosion performance of the substrate,
tool holder inclined toward the operator. Position the tool so
pretreatment, or coating system, or combination thereof, after
thatonlythetipisincontactwiththesurface.(SeeFig.2.)Pull
exposure to corrosive environments.
the scribing tool to obtain a uniform V-cut through the coating
that is being tested.The endpoints of the scribe shall be at least
5. Apparatus
1.25 cm (0.5 in.) from the edge of the panel. Inspect the tool
5.1 Scribing Tools:
frequently, using low power magnification, for dulling, chip-
5.1.1 Lathe Tool Type—High speed tool steel or tungsten
pingorwearandreplaceorrepairasneeded.Thescribeshould
carbide thread cutting lathe tool bit with a cutting tip having a
be of sufficient length to cover the significant test area, but
60° included angle. ANSI B94.50, Style E has been found to
should not contact the edge of the specimen. The scribe must
meet these requirements. (See Fig. 1.) The tool bit is typically
penetrate all organic coating layers on the metal, leaving a
mounted in a holder such as a wooden file handle to facilitate
uniformly bright line. The extent of scribe penetration through
the scribing operation.
metal coatings, such as galvanize, should be agreed upon
5.1.2 Pencil Type—Pencil shaped device, with a high speed
between the producer and user. The coil coating industry
tool steel or tungsten carbide scribing tip. Typically the
typically requires scribes to penetrate all organic coating layers
gripping surface is knurled. The tip may be replaceable or
but not penetrate the metal coating layers. The automotive
permanent.
industry typically requires scribes to penetrate all organic and
5.1.3 Motorized Circular Blade—A motor fitted witha1to
metalcoatinglayers.Thepenciltypemaybelesseffectivethan
2 mm wide circular cutting device.
the lathe tool type when scribing coating systems consisting of
5.1.4 Other Types—Other types of scribing instruments
multiple layers of organic coatings or coating systems includ-
which use a knife type blade such as a scalpel, razor blade, box
ing metal layers. When scribing coating systems consisting of
cutterknife,orothersharppointedtoolareacceptableifagreed
multiple layers of organic coatings or coating systems includ-
upon between the producer and the user.
ing metal layers the depth and quality of scribe technique
5.2 Straightedge—Any straightedge of sufficient length and
should be evaluated using the cross section, castable plastic
rigidity to guide the scribing tool in a straight line.
mount,polishingtechniquedescribedinPracticeE3.Qualityof
the scribe technique may also be observed with the aid of
5.3 Paint Removal Materials—The following materials can
low-power magnification. Note, mark, and describe defects,
be used to remove the coating around the scribe.
coding, and flaws that may affect results. If a motorized
5.3.1 Spatula.
circular blade is used, position the test specimen to allow for a
5.3.2 Knife or similar instrument—the sharpness of blade
straight, linear cut at the desired length. The blade shall be
shall be agreed upon between purchaser and seller.
5.3.3 Paint Stripper or strong solvent.
5.3.4 Materials for removal b
...