Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM C604-18
• Năm ban hành / Publication date: 2018
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for True Specific Gravity of Refractory Materials by Gas-Comparison Pycnometer
• Chỉ số phân loại Quốc tế (ICS) / By field: 81.080 - Vật liệu chịu lửa
• Số trang / Page: 3
• Phạm vi áp dụng / Scope of standard: 1.1 This test method covers the determination of the true specific gravity of solid materials, and is particularly useful for materials that easily hydrate which are not suitable for test with Test Method C135. This test method may be used as an alternate for Test Methods C135, C128, and C188 for determining true specific gravity. 1.2 Units-The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.2.1 Exception-In 7.3, the equivalent SI unit is expressed in parentheses. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.