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ASTM B380-97

(Test Method)

Standard Test Method of Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote Procedure

Standard Test Method of Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote Procedure

SCOPE
1.1 This standard describes the Corrodkote method of evaluating the corrosion performance of copper/nickel/chromium and nickel/chromium coatings electrodeposited on steel, zinc alloys, aluminum alloys, plastics and other substrates.
Note 1—The following ASTM standards are not requirements. They are reference for information only: Practice B 537, Specification B 456, Test Method B 602, and Specification B 604.
1.2 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
09-Oct-1997
Technical Committee
B08 - Metallic and Inorganic Coatings
Drafting Committee
B08.10 - Test Methods
Current Stage
Ref Project

Relations

Replaced By
ASTM B380-97(2002) - Standard Test Method of Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote Procedure
Effective Date
10-Oct-1997
Referred By
ASTM B733-22 - Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal
Effective Date
10-Oct-1997
Referred By
ASTM B456-17(2022) - Standard Specification for Electrodeposited Coatings of Copper Plus Nickel Plus<brk/> Chromium and Nickel Plus Chromium
Effective Date
10-Oct-1997
Referred By
ASTM B537-22 - Standard Practice for Rating of Electroplated Panels Subjected to<brk/> Atmospheric Exposure
Effective Date
10-Oct-1997

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ASTM B380-97 - Standard Test Method of Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote ProcedureASTM B380-97 - Standard Test Method of Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote Procedure
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ASTM B380-97 - Standard Test Method of Corrosion Testing of Decorative Electrodeposited Coatings by the Corrodkote Procedure
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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: B 380 – 97
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 Method of
Corrosion Testing of Decorative Electrodeposited Coatings
by the Corrodkote Procedure
This standard is issued under the fixed designation B 380; 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 humidity for a specified period of time.
1.1 This standard describes the Corrodkote method of
4. Significance and Use
evaluating the corrosion performance of copper/nickel/
4.1 Nickel/chromium and copper/nickel/chromium elec-
chromium and nickel/chromium coatings electrodeposited on
trodeposited coatings are widely used for decorative and
steel, zinc alloys, aluminum alloys, plastics and other sub-
protective applications. The Corrodkote test provides a method
strates.
of controlling the quality of electroplated articles and is
NOTE 1—The following ASTM standards are not requirements. They
suitable for manufacturing control, as well as research and
are reference for information only: Practice B 537, Specification B 456,
development.
Test Method B 602, and Specification B 604.
5. Apparatus
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5.1 The apparatus shall consist of a humidity chamber,
responsibility of the user of this standard to establish appro-
specimen supports, provision for heating the chamber, and
priate safety and health practices and determine the applica-
provisions for air circulation in the chamber.
bility of regulatory limitations prior to use.
5.2 Drops of moisture that might accumulate on the ceiling
or cover of the chamber of specimen supports shall not be
2. Referenced Documents
permitted to fall on the specimens being tested.
2.1 ASTM Standards:
NOTE 2—Suitable apparatus may be constructed from salt-spray equip-
B 117 Practice for Operating Salt Spray (Fog) Apparatus
ment by eliminating fog-spray nozzles, substituting water for the salt
B 456 Specification for Electrodeposited Coatings of Cop-
solution in the reservoir, adding a manifold for bubbling air through the
per Plus Nickel Plus Chromium and Nickel Plus Chro-
water in the reservoir, and adding a fan for circulating the air in the
mium
chamber with the fan discharge directed across the surface of the water in
B 537 Practice for Rating of Electroplated Panels Subjected the reservoir.
to Atmospheric Exposure
5.3 Materials of construction shall not affect the corrosive-
B 602 Test Method for Attribute Sampling of Metallic and
ness of the test.
Inorganic Coatings
B 604 Specification for Decorative Electroplated Coatings 6. Procedure
of Copper/Nickel/Chromium on Plastics
6.1 Corrodkote Slurry—Prepare the Corrodkote slurry in a
D 1193 Specification for Reagent Water
glass beaker by dissolving 0.035 g of reagent grade cupric
nitrate (Cu(NO ) ·3H O), 0.165 g of ACS reagent grade ferric
3 2 2
3. Summary of Method
chloride (FeCl ·6H O), and 1.0 g of ACS reagent grade
3 2
3.1 The test is conducted by applying a slurry containing
ammonium chloride (NH Cl) in 50 mL of water conforming to
corrosive salts to test specimens, allowing the slurry to dry, and
Specification D 1193, Type IV. Stir 30 g of water-washed,
exposing the specimens coated with the slurry to a high relative
ceramic-grade kaolin into the solution. Mix the slurry thor-
oughly and allow it to stand for about 2 min so that the kaolin
will become saturated. Mix the slurry thoroughly just before
This method is under the jurisdiction of ASTM Committee B-8 on Metallic and
Inorganic Coatingsand is the direct responsibility of Subcommittee B08.10on
using.
General Test Methods.
6.1.1 An alternative method of preparing the Corrodkote
The original work in developing the Corrodkote procedure was initiated by the
slurry is as follows. Weigh out 2.5 g of cupric nitrate
American Electroplaters’ Society Research Committee, Project No. 15.
Current edition approved Oct. 10, 1997. Published March 1998. Originally (Cu(NO ) ·3H O), and dissolve and dilute with distilled water
3 2 2
e1
published as B 380 – 61 T. Last previous edition B 380 – 85 (1997).
in a volumetric flask to exactly 500 mL. Weigh out 2.50 g of
Bigge, D. M., “Experience with the Use of the Corrodkote Test,” Proceedings,
ferric chloride (FeCl ·6H O), and dissolve and dilute with
3 2
Am. Electroplaters’ Soc., Vol. 46, 1959, p. 149.
Annual Book of ASTM Standards, Vol 03.02. distilled water in a second volumetric flask to exactly 500 mL.
Annual Book of ASTM Standards, Vol 02.05.
(The ferric chloride solution shall be kept in a dark place and
Annual Book of ASTM Standards, Vol 11.01.
B 380
stoppered with a rubber or glass stopper when not in use.) (The more than one test cycle of 20 h or less is specified, the test
ferric chloride solution shall not be more than 2 weeks old, specimen shall be treated as outlined in 6.9 after each test
since older solutions become unstable.) Weigh out 50.0 g of cycle. Fresh slurry shall be applied for each succeeding cycle.
ammonium chloride (NH Cl) and dissolve and dilute with After the last test cycle, the test specimen shall be treated as
distilled water in a volumetric flask to exactly 500 mL. Then outlined in 6.9.
measure out exactly 7.0 mL of the cupric nitrate solution, 33.0 6.8 Period of Test—The period of each test cycle as well as
mL of ferric chloride solution, and 10.0 mL of the ammonium the number of test cycles required, shall be as specified in the
chloride solution; place these in a beaker to which 30.0 g of specifications for the material or product being tested, or as
kaolin is now added. Stir with a glass stirring rod. mutually agreed upon between the manufacturer and the
6.2 Test Specimens—The type and number of test specimens purchaser.
to be
...

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SCOPE
1.1 This test method gives two procedures for measuring the force required to peel a metallic coating from a plastic substrate.2 One procedure (Procedure A) utilizes a universal testing machine and yields reproducible measurements that can be used in research and development, in quality control and product acceptance, in the description of material and process characteristics, and in communications. The other procedure (Procedure B) utilizes an indicating force instrument that is less accurate and that is sensitive to operator technique. It is suitable for process control use.  
1.2 The tests are performed on standard molded plaques. This method does not cover the testing of production electroplated parts.  
1.3 The tests do not necessarily measure the adhesion of a metallic coating to a plastic substrate because in properly prepared test specimens, separation usually occurs in the plastic just beneath the coating-substrate interface rather than at the interface. It does, however, reflect the degree that the process is controlled.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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ASTM
ASTM C364/C364M-16(2024)(Test Method)
Standard Test Method for Edgewise Compressive Strength of Sandwich Constructions

SIGNIFICANCE AND USE
5.1 The edgewise compressive strength of short sandwich construction specimens provides a basis for judging the load-carrying capacity of the construction in terms of developed facing stress.  
5.2 This test method provides a standard method of obtaining sandwich edgewise compressive strengths for panel design properties, material specifications, research and development applications, and quality assurance.  
5.3 The reporting section requires items that tend to influence edgewise compressive strength to be reported; these include materials, fabrication method, facesheet lay-up orientation (if composite), core orientation, results of any nondestructive inspections, specimen preparation, test equipment details, specimen dimensions and associated measurement accuracy, environmental conditions, speed of testing, failure mode, and failure location.
SCOPE
1.1 This test method covers the compressive properties of structural sandwich construction in a direction parallel to the sandwich facing plane. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb).  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

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