Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D5775-95(2004)e1
• Năm ban hành / Publication date: 2004
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Rubber from Synthetic Sources-Bound Styrene in SBR
• Chỉ số phân loại Quốc tế (ICS) / By field: 83.060 - Cao su
• Số trang / Page: 4
• Phạm vi áp dụng / Scope of standard: 1.1 This test method for determination of styrene content is intended for general use on solid uncompounded styrene-butadiene copolymers, commonly referred to as SBR, prepared by the emulsion process. SBR polymers prepared in solution will require the use of different refractive index tables because the vinyl content of the butadiene differs from that in the emulsion polymers. It is applicable to polymers having less than 55% bound styrene. Note 1--The nomenclature used in this test method is in accordance with Practice D1418. 1.2 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.