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GB/T 18179-2000Metallic coatings. Porosity tests. Humid sulfur (flowers of sulfur) test (English PDF)

金属覆盖层孔隙率试验潮湿硫(硫华)试验

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Issued by

State Quality and Technical Supervision

Level / Type

National · Recommended

Issue date

August 28, 2000

Implementation date

January 1, 2001

Scope

GB/T 18179-2000 is the English-translated version of 金属覆盖层孔隙率试验潮湿硫(硫华)试验.

GB/T 18179-2000 — This standard specifies the metal coating layer revealed through single or multi- layer covering accessibility silver, copper or copper alloy matrix and pore discontinuous method.

This method is particularly suitable for reducing the sulfur atmosphere obvious discoloration or a combination of the various single cover layer, for example: gold, nickel, tin, tin lead, palladium and alloys thereof.

This test method is designed to show the cover layer can be determined whether the user acceptance porosity level requirements.

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Document preview — GB/T 18179-2000

National Standard of the People's Republic of China

ICS: 25.220.01
Classification: A 29

Issued by: State Quality and Technical Supervision

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

This standard specifies the metal coating layer revealed through single or multi- layer covering accessibility silver, copper or copper alloy matrix and pore discontinuous method. This method is particularly suitable for reducing the sulfur atmosphere obvious discoloration or a combination of the various single cover layer, for example: gold, nickel, tin, tin lead, palladium and alloys thereof. This test method is designed to show the cover layer can be determined whether the user acceptance porosity level requirements. Porosity values ??generally required application by the user intends to acceptable levels determined empirically.

Document data

International classification (ICS): 25.220.01.

Chinese classification (CCS): A29.

Estimated length of the Chinese original: 10,157 words.

Adopted international standard: ISO 12687-1996, IDT.

Standards quoted by this document

GB/T 3138-1995; GB/T 6682-1992; GB/T 17720-1999

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

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