BS 6042(1990) : 1990已作废
SPECIFICATION FOR DENTAL SEMIPRECIOUS METAL CASTING ALLOYS
出版：British Standards Institution
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基本信息
标准编号： BS 6042(1990) : 1990
标准类别：Standard
出版单位：British Standards Institution
标准页数：0
标准简介
Provides requirements and test methods for, dental casting alloys with a noble metal content of 25% up to but not including 75%. Suitable for casting alloys, for marking dental restorations and appliances. Excludes alloys used as the substructure of a ceramic to metal restoration. Classifies alloys by strength, low, medium, high and extra high. Includes information and instructions and marking procedures. Illustrates test specimens with cylindrical ends, threaded ends, and suggested sprues and sprue button.
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