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ASTM B679-98(2015)

Standard Specification for Electrodeposited Coatings of Palladium for Engineering Use

Automaticky přeložený název:

Standard Specification pro elektrolyticky vyloučené povlaky Palladium pro strojírenství použití

NORMA vydána dne 1.11.2015

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Provedení	Online zabezpečené PDF - 1 859.50 Kč Tištěné - 1 859.50 Kč
Dostupnost	SKLADEM
Cena	1859.50 Kč bez DPH
1 859.50 Kč

Informace o normě:

Označení normy: ASTM B679-98(2015)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.11.2015
Kód zboží: NS-622603
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM B679-98(2015) :

Keywords:

connectors, contacts, electrical connectors, electrical contacts, engineering coatings, palladium, palladium coatings, palladium electrodeposits, palladium platings,, ICS Number Code 25.220.40 (Metallic coatings)

Doplňující informace

1. Scope

1.1 This specification covers requirements for electrodeposited palladium coatings containing at least 99.7 mass % of palladium metal. Composite coatings consisting of palladium with a thin gold overplate for applications involving electrical contacts are also covered.

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 following table compares the hardness range of electrodeposited palladium with other electrodeposited noble metals and alloys (1,2).2

Approximate Hardness (HK₂₅)

Gold

50–250

Palladium

75–600

Platinum

150–550

Palladium-Nickel

300–650

Rhodium

750–1100

Ruthenium

600–1300

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

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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

D3951-18(2023)	Standard Practice for Commercial Packaging
B602-21	Standard Guide for Attribute Sampling of Metallic and Inorganic Coatings
B499-09(2026)	Standard Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals
B254-26	Standard Practice for Preparation of and Electroplating on Stainless Steel
B489-85(2023)	Standard Practice for Bend Test for Ductility of Electrodeposited and Autocatalytically Deposited Metal Coatings on Metals
B488-18(2025)	Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses
B481-24	Standard Practice for Preparation of Titanium and Titanium Alloys for Electroplating
B507-14(2021)	Standard Practice for Design of Articles to Be Electroplated on Racks
B542-24	Standard Terminology Relating to Electrical Contacts and Their Use
B568-98(2021)	Standard Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
B689-97(2023)	Standard Specification for Electroplated Engineering Nickel Coatings
B697-88(2021)	Standard Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings
B765-03(2023)	Standard Guide for Selection of Porosity and Gross Defect Tests for Electrodeposits and Related Metallic Coatings
B482-25	Standard Practice for Preparation of Tungsten and Tungsten Alloys for Electroplating
B487-24	Standard Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
B374-24	Standard Terminology Relating to Electroplating
B343-26	Standard Practice for Preparation of Nickel for Electroplating with Nickel
B322-99(2025)	Standard Guide for Cleaning Metals Prior to Electroplating
B567-98(2021)	Standard Test Method for Measurement of Coating Thickness by the Beta Backscatter Method
B558-25	Standard Practice for Preparation of Nickel Alloys for Electroplating
B281-88(2025)	Standard Practice for Preparation of Copper and Copper-Base Alloys for Electroplating and Conversion Coatings
B183-18(2022)	Standard Practice for Preparation of Low-Carbon Steel for Electroplating
D1125-23	Standard Test Methods for Electrical Conductivity and Resistivity of Water
B809-25	Standard Test Method for Porosity in Metallic Coatings by Humid Sulfur Vapor (“Flowers-of-Sulfur”)
B242-99(2025)	Standard Guide for Preparation of High-Carbon Steel for Electroplating
B799-95(2025)	Standard Test Method for Porosity in Gold and Palladium Coatings by Sulfurous Acid/Sulfur-Dioxide Vapor
B762-21	Standard Guide of Variables Sampling of Metallic and Inorganic Coatings
B741-95(2000)	Standard Test Method for Porosity In Gold Coatings On Metal Substrates By Paper Electrography (Withdrawn 2005)
B571-23	Standard Practice for Qualitative Adhesion Testing of Metallic Coatings
B748-90(2021)	Standard Test Method for Measurement of Thickness of Metallic Coatings by Measurement of Cross Section with a Scanning Electron Microscope

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