Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D982-16
• Năm ban hành / Publication date: 2016
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Organic Nitrogen in Paper and Paperboard
• Chỉ số phân loại Quốc tế (ICS) / By field: 85.060 - Giấy và cactông
• Số trang / Page: 3
• Phạm vi áp dụng / Scope of standard: 1.1 This test method covers the determination of nitrogenous organic materials in paper and paperboard, which typically are used to reduce the thermal degradation of the cellulose in the paper and paperboard. 1.2 The nitrogen determination by this method does not include the nitrogen in nitro compounds, nitrates, nitrites, azo, hydrazine, cyanide, or pyridine ring-type compounds, none of which are normally found in paper and paperboard. There is no known modification of the method that is applicable to all nitrogenous compounds. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.