ASTM-B428 Historical Revision Information
Standard Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube

ASTM-B428 - 1993 R04 EDITION - SUPERSEDED
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Standard Test Method for Angle of Twist in Rectangular and Square Copper and Copper Alloy Tube
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Scope

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.

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.

Significance and Use

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.

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.

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.

Keywords

angle; copper; copper alloy; rectangular; square; tube; twist

To find similar documents by ASTM Volume:

02.01 (Copper and Copper Alloys)

To find similar documents by classification:

23.040.15 (Non-ferrous metal pipes Non-ferrous metal pipes and tubes for specific use, see 77.150)

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Document Number

ASTM-B428-93(2004)

Revision Level

1993 R04 EDITION

Status

Superseded

Modification Type

Reapproval

Publication Date

May 1, 2004

Document Type

Test Method

Page Count

2 pages

Committee Number

B05.06