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ASTM B920-01(2006)e1
Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution (Includes all amendments And changes 10/12/2011).
Automaticky přeložený název:
Standardní praktiky pro Pórovitost ve zlatě a Palladium legované nátěry na kovové substráty par roztoku chlornanu sodného
NORMA vydána dne 1.12.2006
Informace o normě:
Označení normy: ASTM B920-01(2006)e1
Poznámka: NEPLATNÁ
Datum vydání normy: 1.12.2006
Kód zboží: NS-8796
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM B920-01(2006)e1 :
Keywords:
electrical contacts, gold coatings, gold platings, hypochlorite, palladium coatings, palladium platings, plated contacts, plating porosity, pore corrosion test, pore counting, porosity screen testing, porosity testing, ICS Number Code 25.220.40 (Metallic coatings)
Doplňující informace
| 1. Scope | ||||||||||||||||
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1.1 This test practice covers equipment and methods for revealing the porosity of gold and palladium coatings, particularly electrodeposits and clad metals used on electrical contacts. 1.2 This test practice is suitable for coatings containing gold or 75 % by mass of palladium on substrates of copper, nickel, and their alloys, which are commonly used in electrical contacts. 1.3 A variety of full porosity testing methods is described in the literature., These porosity Test Methods are B 735, B 741, B 798, B 799, and B 809. An ASTM Guide to the selection of porosity tests for electrodeposits and related metallic coatings is available as Guide B 765. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 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. For specific hazards, see Section 6. |
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| 2. Referenced Documents | ||||||||||||||||
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