ASTM D610-07

Standard Test Method for Evaluating Degree of Rusting on Painted Steel Surfaces

SIGNIFICANCE AND USE
The amount of rusting beneath or through a paint film is a significant factor in determining whether a coating system should be repaired or replaced. This test method provides a standardized means for quantifying the amount and distribution of visible surface rust.
The degree of rusting is evaluated using a zero to ten scale based on the percentage of visible surface rust.
The distribution of the rust is classified as spot rust, general rust, pinpoint rust or hybrid rust.
SCOPE
1.1 This test method covers the evaluation of the degree of rusting on painted steel surfaces. The visual examples which depict the percentage of rusting given in the written specifications form part of the standard. In the event of a dispute, the written definition prevails. These visual examples were developed in cooperation with SSPC: The Society for Protective Coatings to further standardization of methods. The photographs can be used to estimate the percentage of other coating defects on various substrates. This standard does not include evaluation of rust propagation around an initially prepared scribe, score, or holiday.
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-Jun-2007
• ICS: 87.020 - Paint coating processes
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.25 - Evaluation of Weathering Effects

Relations

• Replaces: ASTM D610-01 - Standard Test Method for Evaluating Degree of Rusting on Painted Steel Surfaces
• Effective Date: 01-Jul-2007
• Replaced By: ASTM D610-08 - Standard Practice for Evaluating Degree of Rusting on Painted Steel Surfaces
• Effective Date: 01-Feb-2008
• Referred By: ASTM D3361/D3361M-22 - Standard Practice for Unfiltered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings
• Effective Date: 01-Jul-2007
• Referred By: ASTM D6675-23 - Standard Practice for Salt-Accelerated Outdoor Cosmetic Corrosion Testing of Organic Coatings on Automotive Sheet Steel
• Effective Date: 01-Jul-2007
• Referred By: ASTM D7167-12(2018) - Standard Guide for Establishing Procedures to Monitor the Performance of Safety-Related Coating Service Level III Lining Systems in an Operating Nuclear Power Plant
• Effective Date: 01-Jul-2007
• Referred By: ASTM D2248-01a(2018) - Standard Practice for Detergent Resistance of Organic Finishes
• Effective Date: 01-Jul-2007
• Referred By: ASTM D4587-23 - Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings
• Effective Date: 01-Jul-2007
• Referred By: ASTM D7893-13(2018) - Standard Guide for Corrosion Test Panel Preparation, Testing, and Rating of Coil-Coated Building Products
• Effective Date: 01-Jul-2007
• Referred By: ASTM D1014-18 - Standard Practice for Conducting Exterior Exposure Tests of Paints and Coatings on Metal Substrates
• Effective Date: 01-Jul-2007
• Referred By: ASTM D4585/D4585M-18 - Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation
• Effective Date: 01-Jul-2007
• Referred By: ASTM F3019/F3019M-19 - Standard Specification for Chromium Free Zinc-Flake Composite, with or without Integral Lubricant, Corrosion Protective Coatings for Fasteners
• Effective Date: 01-Jul-2007
• Referred By: ASTM D8391-22e1 - Standard Specification for Demonstrating Equivalent Fire Performance for Wood-Based Floor Framing Members to Unprotected 2 by 10 Dimension Lumber or Equal-Sized Structural Composite Lumber
• Effective Date: 01-Jul-2007
• Referred By: ASTM D6943-15(2019) - Standard Practice for Immersion Testing of Industrial Protective Coatings and Linings
• Effective Date: 01-Jul-2007
• Referred By: ASTM D5894-21 - Standard Practice for Cyclic Salt Fog/UV Exposure of Painted Metal, (Alternating Exposures in a Fog/Dry Cabinet and a UV/Condensation Cabinet)
• Effective Date: 01-Jul-2007
• Referred By: ASTM D870-15(2020) - Standard Practice for Testing Water Resistance of Coatings Using Water Immersion
• Effective Date: 01-Jul-2007

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
Society for Protective Coatings
Designation:D610–07 SSPC-VIS-2
Standard Test Method for
1
Evaluating Degree of Rusting on Painted Steel Surfaces
This standard is issued under the fixed designation D 610; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.2 The degree of rusting is evaluated using a zero to ten
scale based on the percentage of visible surface rust.
1.1 This test method covers the evaluation of the degree of
3.3 The distribution of the rust is classified as spot rust,
rusting on painted steel surfaces. The visual examples which
general rust, pinpoint rust or hybrid rust.
depict the percentage of rusting given in the written specifica-
tions form part of the standard. In the event of a dispute, the
4. Interferences
written definition prevails. These visual examples were devel-
4.1 The visual examples that are part of this test method and
oped in cooperation with SSPC: The Society for Protective
the associated rust-grade scale cover only rusting evidenced by
Coatings to further standardization of methods. The photo-
visible surface rust.
graphs can be used to estimate the percentage of other coating
4.2 The use of the visual examples requires the following
defects on various substrates. This standard does not include
cautions:
evaluation of rust propagation around an initially prepared
4.2.1 Some finishes are stained by rust. This staining must
scribe, score, or holiday.
not be confused with the actual rusting involved.
1.2 This standard does not purport to address all of the
4.2.2 Accumulated dirt or other material may make accurate
safety concerns, if any, associated with its use. It is the
determination of the degree of rusting difficult.
responsibility of the user of this standard to establish appro-
4.2.3 Certain types of deposited dirt that contain iron or iron
priate safety and health practices and determine the applica-
compounds may cause surface discoloration that should not be
bility of regulatory limitations prior to use.
mistaken for corrosion.
2. Referenced Documents 4.2.4 Failure may vary over a given area. Discretion must
therefore be used when selecting a single rust grade or rust
2.1 ASTM Adjunct/SSPC: The Society for Protective Coat-
distribution that is to be representative of a large area or
ings:
structure, or in subdividing a structure for evaluation.
SSPC-VIS 2/ASTM D 610 Standard Method of Evaluating
2
4.2.5 The color of the finish coating should be taken into
Degrees of Rusting on Painted Steel Surfaces
accountinevaluatingsurfacesasfailureswillbemoreapparent
3. Significance and Use
on a finish that shows color contrast with rust, such as used in
these reference standards, than on a similar color, such as an
3.1 The amount of rusting beneath or through a paint film is
iron oxide finish.
a significant factor in determining whether a coating system
should be repaired or replaced. This test method provides a
5. Procedure
standardizedmeansforquantifyingtheamountanddistribution
5.1 Select an area to be evaluated.
of visible surface rust.
5.2 Determine the type of rust distribution using definitions
in Table 1 and visual examples in Fig. 1, Fig. 2, and Fig. 3.
1
5.3 Estimate percentage of surface area rusted using the
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
visual examples in Fig. 1, Fig. 2, and Fig. 3 or SSPC-VIS 2,or
Subcommittee D01.46 on Industrial Protective Coatings.
both,byelectronicscanningtechniquesorothermethodagreed
This test method has been jointly approved byASTM and SSPC:The Society for
upon by contracting parties.
Protective Coatings.
5.4 Do not consider flow of corrosion products onto the
Current edition approved July 1, 2007. Published July 2007. Originally approved
in 1941. Last previous edition approved in 2001 as D 610 – 01.
surface of intact coating (that is, “rust bleed” or staining) as
2
Colored visual examples are available at a nominal cost from ASTM Interna-
part of the surface area rust. It may be helpful to wipe the
tional Headquarters (request Adjunct ADJD0610A), SSPC Publication No. 00-08
surface with a damp cloth to remove the rust bleed before
fromThe Society for Protective Coatings (SSPC), 40 24th St., 6th Floor, Pittsburgh,
PA 15222-4656, http://www.sspc.org. evaluating.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
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