Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM B9-76(2017)
• Năm ban hành / Publication date: 2017
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Specification for Bronze Trolley Wire
• Chỉ số phân loại Quốc tế (ICS) / By field: 29.280 - Thiết bị truyền động điện
• Số trang / Page: 6
• Phạm vi áp dụng / Scope of standard: 1.1 This specification covers round, grooved, and figure-9 deep-section grooved bronze trolley wire. 1.2 The bronze trolley wire may be made in any of the three distinct alloys indicated in accordance with their increasing conductivities: Alloy 40, Alloy 55, Alloy 80. 1.3 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units given in this standard may be approximate. 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.