ASTM B488 PDF

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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This specification establishes the requirements for electrodeposited gold coatings for engineering applications, employed specifically for their corrosion and tarnish astk including resistance to fretting corrosion and catalytic polymerizationbondability, low and stable contact resistance, solderability, and infrared reflectivity.

Astk other metals are considered impurities and shall not be present in amounts greater than 0. Since many gold coatings have a density lower than the theoretical density of gold NOTE 6—When the thickness of the nickel underplate has a detrimental impact on the mechanical properties or bondability of the substrate, the nickel thickness may be reduced to a non-detrimental level as speci? Examine the fracture at a magni?

Almost all gold electrodeposits will contain potassium, carbon and asrm that are occluded or precipitated in the deposit. Place the specimen in the bottle in accordance with X3.

Nonmagnetic Coatings on Magnetic Basis Metals. Other calibration standards astmm gold are generally certi? Go to Navigation Go to Content. 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. Properly performed, this process will ensure coated products of satisfactory quality and will reduce the amount of acceptance inspection.

ASTM B488 Gold Plating Standard

When Guide B is speci? The test must yield a numerical value and certain statistical requirements must be met.

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. A number in parentheses indicates the year of last reapproval.

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A minimum rinse time of 2. In the case of Type I gold, the occluded potassium has been shown to improve durability and is desirable for that reason. Individual metal impurities shall not be present in a quantity greater than 0.

ASTM B Gold Plating & Electroplating Certification | Accurate Precision Plating

The procedure is known as sampling inspection. Benefits of Gold Plating Electrical Components Gold is the ultimate precious metal for electrical contact plating.

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.

Such stress relief shall not reduce the hardness to a value below the speci? In a closed polyethylene bottle, the equilibrated water will remain in the range from 0. Gold will not form surface oxides Gold conducts low voltage currents for long periods of time without corrosion or failure Gold provides good wear resistance, especially when combined with cobalt or nickel Types of Industrial Gold Plating Services Hard gold plating — gold alloyed with trace amounts of cobalt or nickel for durability in connectors Soft gold plating — for applications that require purity Wire bondable gold — ultra-pure karat gold plating We offer nickel-brightened hard acid, karat gold plating, with hardness rating between Knoop.

In addition, the average coating thickness on articles will vary from article to article within a production lot. Appearance, porosity, and thickness should be determined often enough to ensure compliance with speci? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Test Method B contains four sampling plans, three for use with tests that are nondestructive and one with those that are destructive. Several types of coatings, differing in gold purity and hardness, are covered by this specification.

However, care must be taken to ensure that the thickness of the Type I or Type II gold topcoat is sufficient astj as not to compromise wear properties. The presence of salts is evidenced by a characteristic? Thickness of the underplating should be consistent with end-use atsm. Thus, the appearance of test coupons may serve as an indication of an adtm need for the activated carbon treatment. 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.

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The thickness of an underplating is usually greater than 1? The purchaser and supplier may agree on the plan or plans to be used. Government and Military, including as subcontracts, shall be packaged in accordance with Practice D Type, Code, and thickness or mass per unit area see Section 4.

The gold thickness on signi? It is informational only astmm not an official part of the standard; the full text of the standard itself must be astk to for its use and application.

Some typical uses of gold coatings are enumerated below, but the list is not complete and is intended for general guidance only.

Initial scanning should be carried out for all elements in order to detect any unknown or unexpected metallic impurities. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Link to Active This link will always route to the current Active version of the standard. 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.

ASTM B-488

The conductivity of the water extract is measured, and the increase in conductivity due to residual salts and other conducting impurities is calculated. Your comments will receive careful consideration at a meeting of the asfm technical committee, which you may attend. Special racks may involve the use of conforming, auxiliary, bipolar electrodes, or nonconducting shields.