Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM B657-11
• Năm ban hành / Publication date: 2011
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Guide for Metallographic Identification of Microstructure in Cemented Carbides
• Chỉ số phân loại Quốc tế (ICS) / By field: 77.160 - Luyện kim bột
• Số trang / Page: 5

Phạm vi áp dụng / Scope of standard

1.1 This test method covers apparatus and procedures for the metallographic determination of microstructures in cemented tungsten carbides.

1.2 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. Precautions applying to use of hazardous laboratory chemicals should be observed for chemicals specified in Table 1.