Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D4892-89(2009)
• Năm ban hành / Publication date: 2009
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Density of Solid Pitch (Helium Pycnometer Method)
• Chỉ số phân loại Quốc tế (ICS) / By field: 75.140 - Sáp, vật liệu bitum và các sản phẩm dầu mỏ khác
• Số trang / Page: 3
• Phạm vi áp dụng / Scope of standard: 1.1 This test method covers the determination of pitch density by helium pycnometer. It is applicable at a range of room temperatures of 15 to 35°C. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 and health practices and determine the applicability of regulatory limitations prior to use.