Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO R 91:2018
• Năm ban hành / Publication date: 2018
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Practice for Determining Aggregate Source Shape Values from Digital Image Analysis Shape Properties
• Số trang / Page: 17

Phạm vi áp dụng / Scope of standard

This standard covers the determination of aggregate source and source blend shape characteristics using gradation analysis and shape properties determined by means of digital image analysis.

This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.