Logo

ASTM B428-24

Current Revision

Standard Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube

$61.00

$61.00

$109.80

$73.00

$73.00

$131.40



Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


Document Preview Not Available...

1.1 This test method covers 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. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

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.


4.1 The rectangular or square copper alloy tube covered by this test method may be used in applications in which control of twist is important to proper fit in final assembly and to minimize rework to bring the tube into compliance. It is recognized that the amount of twist, in degrees per increment of length, can change as a result of the weight of the product and its length during measurement.

4.2 This test method provides a procedure for measuring the twist in square and rectangular copper and copper alloy tubes as a measure of the deviation from straightness.

4.3 This test method allows the purchaser and supplier or manufacturer to inspect square and rectangular copper and copper alloy tube with a standard technique that provides acceptable twist in delivered tubes.

SDO ASTM: ASTM International
Document Number B428
Publication Date July 1, 2024
Language en - English
Page Count 3
Revision Level 24
Supercedes
Committee B05.06
Publish Date Document Id Type View
July 1, 2024 B0428-24 Revision
April 1, 2009 B0428-09 Revision
Oct. 1, 2008 B0428-08 Revision
Jan. 1, 1998 B0428-93R98E01 Revision
March 1, 2018 B0428-09R18 Reaffirmation
Oct. 1, 2013 B0428-09R13 Reaffirmation
May 1, 2004 B0428-93R04 Reaffirmation