Thank you for visiting the Advanced Plating Technologies Specification Database . Below is a technical summary of specification ASTM B from ASTM for. Our gold plating services comply with different categories of specifications, such as MIL-G, ASTM B, and AMS Gold plating compliant to. Accurate Precision Plating has 50 years experience performing gold plating services under the ASTM B certification & standard. Call today!.

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ASTM B-488
In addition, astn average coating thickness on articles will vary from article to article within a production lot. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Any bath that produces coatings meeting the requirements of the speci? NOTE 8—In applications in which forming or?
A number in parentheses indicates the year of last reapproval. Contact Accurate Precision Plating click to request a quote or call us at The procedure is known as sampling inspection.

This specification establishes the requirements for electrodeposited gold coatings for engineering applications, employed specifically for their asmt and tarnish resistance including resistance to fretting corrosion and catalytic polymerizationbondability, low and stable contact resistance, solderability, and infrared reflectivity.
NOTE 7—In certain instances in which high-frequency analog signals are employed, such as in wave guides, the magnetic properties of nickel may attenuate the signal.
You can be assured your gold plating project will be completed right the first time and your part delivered to you production-ready. The inspection lot is then classi? b4888
ASTM B – 18 Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses
Test Method B can be used only for coating requirements that have a numerical limit, such as coating thickness.
If the basis metal is scratched or rough, it may be necessary to level the surface by processes such as electropolishing, chemical polishing, or the application of a self-leveling nickel or copper undercoating before gold electroplating. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. In a closed polyethylene bottle, the equilibrated water will remain in the range from 0.
No separation of the coating from the substrate shall occur. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Modern, high-velocity impingement-type b4488 can reduce this time to a few seconds.
Individual metal impurities shall not be present in a quantity greater than 0.
ASTM B488 Gold Plating Standard
Properly performed, this process will ensure coated products of satisfactory quality and will reduce the amount of acceptance inspection. This standard has been approved for use by agencies of the Department of Defense.

Several types of coatings, differing in gold purity and hardness, are covered by this speci? For Type I Code B and C coatings, metallic hardening agents such as nickel, cobalt or iron combined shall be equal to or less than 0. 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.
When Guide B is speci? If copper or nickel underplatings are used, they should have a nominal thickness of at least 1. Therefore, if all the articles in a production lot are to meet the thickness requirement, the average coating thickness for the production lot as a whole will be greater than the average necessary to ensure that any single article meets the requirement see 8. Cracking without separation does not indicate poor adhesion unless the coating can be peeled back with a sharp instrument.
A suggested four-point method is detailed in Test Method F It is soluble in water and forms carbonic acid that ionizes and is at equilibrium at 0. A minimum of 0. NOTE 14—The test to be selected will depend upon the gold thickness, the nature of the basis metal, the nature and thickness of any intermediate layers or underplate, the shape of the gold-coated part, and its intended service environment. Thickness of the underplating should be consistent with end-use requirements.
Nickel underplatings are also applied for other reasons see Appendix X6. The thickness of the underplating should be consistent with end-use requirements see 6. Initial scanning should be carried out for all elements in order to detect any unknown or unexpected metallic impurities.
When plated parts are used in mating applications, the maximum thickness shall not exceed the tolerance speci?
