ASTM B488-01 - 10.10.2001
 
1. Scope

1.1 This specification covers requirements for electrodeposited gold coatings that contain not less than 99.00 mass % gold and that are used for engineering applications.

1.2 Specifically excluded from this specification are autocatalytic, immersion, and vapor deposited gold coatings.

1.3 Gold coatings conforming to this specification are employed for their corrosion and tarnish resistance (including resistance to fretting corrosion and catalytic polymerization), bondability, low and stable contact resistance, solderability, and infrared reflectivity. Several types of coatings, differing in gold purity and hardness, are covered by this specification.

1.4 The values stated in SI units are to be regarded as the standard. Values provided in parentheses are for information only.

1.5 The following hazards caveat pertains only to the test methods section, Section 9, of this specification: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.

 
2. Referenced Documents

B568-98(2021)

Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry

B571-23

Standard Practice for Qualitative Adhesion Testing of Metallic Coatings

B578-21

Standard Test Method for Microindentation Hardness of Electroplated Coatings

B602-21

Standard Guide for Attribute Sampling of Metallic and Inorganic Coatings

B678-23

Standard Test Method for Solderability of Metallic-Coated Products

B697-88(2021)

Standard Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings

B183-18(2022)

Standard Practice for Preparation of Low-Carbon Steel for Electroplating

B242-99(2020)

Standard Guide for Preparation of High-Carbon Steel for Electroplating

B253-11(2022)

Standard Guide for Preparation of Aluminum Alloys for Electroplating

B254-92(2020)e1

Standard Practice for Preparation of and Electroplating on Stainless Steel (Includes all amendments and changes 12/7/2020).

B281-88(2019)e1

Standard Practice for Preparation of Copper and Copper-Base Alloys for Electroplating and Conversion Coatings (Includes all amendments and changes 5/14/2019).

B322-99(2020)e1

Standard Guide for Cleaning Metals Prior to Electroplating (Includes all amendments and changes 12/7/2020).

B343-92a(2020)

Standard Practice for Preparation of Nickel for Electroplating with Nickel (Includes all amendments and changes 12/4/2020).

B374-21

Standard Terminology Relating to Electroplating

B481-68(2019)

Standard Practice for Preparation of Titanium and Titanium Alloys for Electroplating

B482-85(2019)

Standard Practice for Preparation of Tungsten and Tungsten Alloys for Electroplating

B487-20

Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section

B489-85(2023)

Standard Practice for Bend Test for Ductility of Electrodeposited and Autocatalytically Deposited Metal Coatings on Metals

B499-09(2021)e1

Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals (Includes all amendments and changes 5/18/2021).

B504-90(2023)

Standard Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method

B507-14(2021)

Standard Practice for Design of Articles to Be Electroplated on Racks

B542-13(2019)

Standard Terminology Relating to Electrical Contacts and Their Use

B735-16(2022)

Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor

B741-95(2000)

Standard Test Method for Porosity In Gold Coatings On Metal Substrates By Paper Electrography (Withdrawn 2005)

B748-90(2021)

Standard Test Method for Measurement of Thickness of Metallic Coatings by Measurement of Cross Section with a Scanning Electron Microscope

B762-21

Standard Guide of Variables Sampling of Metallic and Inorganic Coatings

B765-03(2023)

Standard Guide for Selection of Porosity and Gross Defect Tests for Electrodeposits and Related Metallic Coatings

B799-95(2020)

Standard Test Method for Porosity in Gold and Palladium Coatings by Sulfurous Acid/Sulfur-Dioxide Vapor

B558-79(2019)

Standard Practice for Preparation of Nickel Alloys for Electroplating

B567-98(2021)

Standard Test Method for Measurement of Coating Thickness by the Beta Backscatter Method

F390-11

Standard Test Method for Sheet Resistance of Thin Metallic Films With a Collinear Four-Probe Array (Withdrawn 2020)

D3951-18(2023)

Standard Practice for Commercial Packaging

B809-95(2018)

Standard Test Method for Porosity in Metallic Coatings by Humid Sulfur Vapor (“Flowers-of-Sulfur”)

D1125-23

Standard Test Methods for Electrical Conductivity and Resistivity of Water