GB/T 18179-2000 PDF English
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Basic data
| Standard ID | GB/T 18179-2000 (GB/T18179-2000) |
| Description (Translated English) | Metallic coatings. Porosity tests. Humid sulfur (flowers of sulfur) test |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | A29 |
| Classification of International Standard | 25.220.01 |
| Word Count Estimation | 10,157 |
| Date of Issue | 2000-08-28 |
| Date of Implementation | 2001-01-01 |
| Quoted Standard | GB/T 3138-1995; GB/T 6682-1992; GB/T 17720-1999 |
| Adopted Standard | ISO 12687-1996, IDT |
| Issuing agency(ies) | State Quality and Technical Supervision |
| Summary | 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. |