Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM B428-09(2013)
• Năm ban hành / Publication date: 2013
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube
• Chỉ số phân loại Quốc tế (ICS) / By field: 23.040.15 - Ống bằng kim loại không có sắt
• Số trang / Page: 3

Phạm vi áp dụng / Scope of standard

1.1 This test method establishes the requirements for the determination of the angle of twist in rectangular and square copper and copper alloy tube.

1.2 The values stated in inch-pound 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.