Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM E930-99
• Năm ban hành / Publication date: 1999
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Methods for Estimating the Largest Grain Observed in a Metallographic Section (ALA Grain Size)
• Chỉ số phân loại Quốc tế (ICS) / By field: 19.120 - Phân tích cỡ hạt. Rây (sàng)
• Số trang / Page: 6
• Phạm vi áp dụng / Scope of standard: 1.1 These test methods describe simple manual procedures for estimating the size of the largest grain observed on a metallographically prepared plane section. 1.2 These test methods shall only be valid for microstructures containing outlier course grains, where their population is too sparse for grain size determination by Test Methods E112. 1.3 This standard does not purport to address all of the safety problems, 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.