American National Standard
Test Procedure and Acceptance Criteria for
Prime Painted Steel Surfaces
for Steel Doors and Frames
Revision and Redesignation of
These methods prescribe the procedures to be
followed in the selection of material, chemical
preparation, painting, testing, and evaluation
of prime painted steel surfaces for steel doors
2.1 The test specimen shall be the exact type
and gauge of steel used in the manufacturing
of the product. It shall be 4" x 10" with a 1/4"
hole at the center of the 4" width, 1/2" in from
the end. When a specimen greater than 10"
in length is used for the coating process, the
bottom 10" of the specimen shall be used for
all subsequent testing.
Permanent identification marks shall be added
to the specimen as required for control purposes.
2.2 The specimen(s) shall be hung using a
method representative of that used in production.
2.3 The specimen(s) shall be cleaned, pretreated
and painted in accordance with the
manufacturer’s normal production method and
procedure. All coating weights used on test
specimens shall be documented and representative
of the individual manufacturer’s normal
2.4 At the end of the paint cycle, the specimen(s)
shall be removed from the paint system with
careful handling. The painted surface of the
specimen shall not be handled or come in
contact with other objects to prevent disruption
of the painted surface.
2.5 All specimens shall be aged a minimum of
72 hours prior to testing.
3.1 Salt spray test
a) Apparatus — The apparatus used for salt
spray testing shall be of such design as to
conform to ASTM B117-09, Standard Practice
for Operating Salt Spray (Fog) Apparatus.
b) Test performance — Salt spray testing shall
be conducted as specified in ASTM B117-09,
Standard Practice for Operating Salt Spray
(Fog) Apparatus for a test period of 120 continuous
hours. The test specimen(s) shall be
scribed with an "X" per ASTM D1654-92(2000)
Standard Test Method for Evaluation of Painted
or Coated Specimens Subjected to Corrosive
Environments, sections 4.1 and 5.1.
3.2 Condensation testing (humidity)
a) Apparatus — The apparatus used for condensation
(humidity) testing shall be of such
design as to conform to ASTM D4585-99, Standard
Practice for Testing Water Resistance of
Coatings Using Controlled Condensation.
b) Test performance — Condensation (humidity)
testing shall be conducted as specified in
ASTM D4585-99, Standard Practice for Testing
Water Resistance of Coatings Using Controlled
Condensation, for a test period of 240 continuous
hours. Exposure temperatures shall be
maintained at a minimum of 100° Fahrenheit.
Actual test temperature shall be noted in the
3.3 Impact test
The paint shall be tested per ASTM D2794-93
(2010)e1 Standard Test Method for Resistance
of Organic Coatings to the Effects of Rapid
Deformation (Impact), with 20 inch pounds of
direct impact using a Gardner Impact Tester with 1/2" diameter ball or punch at room temperature
of 70° – 75° Fahrenheit. After impact is made,
apply 3/4" wide #600 Scotch cellophane tape
firmly to the impact area and pull off sharply.
3.4 Film adhesion test
The coating film adhesion shall be tested in
accordance with method “B” of ASTM D3359-
09e2, Standard Test Methods for Measuring
Adhesion by Tape Test. A total of (11) parallel
cuts are made with a sharp instrument, 1 mm
apart in both a vertical and horizontal direction
forming a grid. One inch wide pressure-sensitive
tape is then firmly applied to the scribed surface
and rapidly removed.
4 Acceptance criteria
4.1 Salt spray resistance
The paint film on the unscored surface of the
test specimen shall have a rust grade of no less
than 6 as defined in ASTM D610-01, Standard
Test Method for Evaluating Degree of Rusting
on Painted Steel Surfaces. Table 1 shall be
used to evaluate the rust grades. The paint
film at the scored line shall not be undercut
by rust more than 1/8" each side, when tested
in accordance with paragraph 3.1.
4.2 Condensation resistance
The paint film may have any quantity of #8
blisters but, shall have no more than a few #6
blisters as illustrated in ASTM D714-02(2009),
Standard Test Method for Evaluating Degree of
Blistering of Paints, when tested in accordance
with paragraph 3.2. Visual representations of
the various degrees of blistering are shown in
Figures 2 through 5.
4.3 Impact test
No paint film removal shall occur other than
at an area 1/8" in diameter at the center of the
impact area, when tested in accordance with
4.4 Film adhesion
There shall be no adhesion loss less than a
grade 3B as defined in ASTM D3359-09e2. This
grade represents a film removal of between 5
and 15%. Table 2 illustrates the various classifications
for adhesion loss.
5.1 The report shall cover the date the test was
performed and the issue date of the report.
5.2 Identification of the specimen tested, source
of supply, manufacturer, model or series number,
or both, and any other pertinent information.
5.3 A detailed description of the specimen or
specimens tested shall include the type of
prime paint, the method of paint application,
the procedure used to cure it, and the dry film
5.4 A statement that the test or tests were
conducted in accordance with the methods
and procedures as specified herein. If deviations
from these methods and procedures were
made, they shall be described in the report.
5.5 When the test is made to check the conformance
of the unit specimen to test requirements
of a particular specification, the identification
or description of the specification shall be included
in the report.
6.1 Testing laboratory
All tests shall be conducted and/or certified by
a nationally recognized, independent testing
laboratory accredited in accordance with ISO
17025 for the test methods referenced in the
Reference may be made to this specification.
When reference is made, the following statement
shall be used: Prime finish has been tested in
conformance with ANSI Standard A250.10-1998.
Table 1 - Rust grades
Maximum % of rusted area
Table 2 - Classification of adhesive test results
Surface of cross-cut areas from
which listing has occurred. (Example
for six parallel cuts.)
Rate of adhesion
|The edges of the cuts are completely smooth; none of the squares or the lattice are detached.
||Small flakes of coating are detached at intersections;less than 5% of the area is affected.
||Small flakes of coating are detached along edges and at intersections of cuts. The area affected is 5 to 15% of the lattice.
||The coating has flaked along the edges and at parts of the squares. The affected area is 15 to 35% of the lattice.
||The coating has flaked along the edges of cuts in large ribbons and entire squares have detached. The area affected is 35 to 65% of the lattice.
Flaking and detachment in excess of 65%.
American National Standard
Approval of an American National Standard requires verification by ANSl
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than a simple majority, but not necessarily unanimity. Consensus requires
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be made toward their resolution.
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title page of this standard.
CAUTION NOTICE: This American National Standard may be revised or
withdrawn at any time. The procedures of the American National Standards
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American National Standards Institute.
(This Foreword is not part of American National Standard A250.10-2011)
The material contained in this document has been developed under the auspices of the Technical Committee of the Steel Door Institute.
The original standard was issued on July 28, 1980 and was revised in 1990 and 1998, and the 1998 edition was reaffirmed in 2004. The current edition is a revision of the 1998 document with the contents being updated to reflect changes and advances that have take place in the steel door and frame industry.
Suggestions for improvement gained in the use of this standard are welcome and should be sent to the Steel Door Institute, 30200 Detroit Road, Cleveland, OH 44145-1967.
The organizations that have approved this standard are as follows:
American Institute of Architects
Builders Hardware Manufacturers Association
Canadian Steel Door Manufacturers Association
Cedar Valley Associates
Door and Hardware Institute
Door Control Services
HMMA/Division of NAAMM
Intertek Testing Services
Steel Door Institute
Underwriters Laboratories Inc.
Vetrotech / Saint Gobain
Wind Science & Engineering Research Center
The Accredited Standards Committee A250 TC-1 developed this standard and had the following personnel at the time of approval:
James Urban, Chairman
J. Jeffery Wherry, Secretary
||Name of Representative
|American Institute of Architects
|Builders Hardware Manufacturers Association
|Canadian Steel Door Manufacturers Association
|Cedar Valley Associates
|Ceco Door Products
|Door and Hardware Institute
|Door Control Services
|HMMA/Division of NAAMM
|Intertek Testing Services
|Mesker Door, Inc.
|Pioneer Industries, Inc.
|Security Metal Products
|Steel Door Institute
||J. J. Wherry
|Underwriters Laboratories Inc.
|Vetrotech / Saint Gobain
|Wind Science & Engineering Research Center