ASTM-B679 2004

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B679-98(2004)e1 Standard Specification for Electrodeposited Coatings of Palladium for Engineering Use

Published By	Publication Date	Number of Pages
ASTM	2004	6

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Categories: 25.220.40 - Metallic coatings, ASTM

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Description

1.1 Purity -This specification covers requirements for electrodeposited palladium coatings containing at least 99.7 mass % of palladium metal.

1.2 Properties -Palladium is the lightest and least noble of the platinum group metals. It has a specific gravity of 12.0, which is substantially less than gold (19.3) and platinum (21.5). This yields a greater volume or thickness of coating and, consequently, some saving of metal weight accompanied by a small sacrifice in corrosion resistance and reflectivity. The hardness range of electrodeposited palladium compares favorably with the other electroplated noble metals and their alloys.

1.3 The values stated in SI units are the preferred values. Values provided in parentheses are for information only.

1.4 The following hazards caveat pertains only to the test methods section of this specification: This standard does not purport to address all of the safety problems, 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Classification Ordering Information Manufacture TABLE 1 TABLE 2
3	Coating Requirements Sampling
4	Test Methods Special Government Requirements Keywords
5	X1. SOME REASONS FOR USING A GOLD OVERPLATE X1.1 X1.2 X2. SOME REASONS FOR USING A NICKEL UNDERPLATE FOR PALLADIUM-NICKEL ELECTROPLATING X2.1 Diffusion Barrier X2.2 Levelling Layer X2.3 Pore Corrosion Inhibitor X2.4 Load Bearing Underlayer for Contacting Surfaces X2.5 X3. RESIDUAL SALTS X3.1 X3.2 X3.3 X3.4
6	X4. RECOMMENDED THICKNESSES X4.1 REFERENCES

Additional information

Standard Title	B679-98(2004)e1 Standard Specification for Electrodeposited Coatings of Palladium for Engineering Use
Published Code	ASTM
Publication Date	2004
Pages Count	6
ICS Codes	25.220.40 - Metallic coatings

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ASTM-B679 2004

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