ASTM-E1685 › Historical Revision Information
Standard Practice for Measuring the Change in Length of Fasteners Using the Ultrasonic Pulse-Echo Technique
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Scope
1.1 This practice covers a procedure for measuring changes in length of threaded fasteners using conventional ultrasonic, pulse-echo bolt-measuring instrumentation which has been properly calibrated.
1.2 This procedure is normally intended for metal bolting 0.25 in. (6.4 mm) or more in nominal diameter with effective length-to-diameter ratios of 2:1 or greater.
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.
Keywords
bolts; change-in-length measurements; clamping force; fasteners; residual stress; ultrasonics; ICS Number Code 17.040.30 (Measuring instruments); 21.060.01 (Fasteners in general)
To find similar documents by ASTM Volume:
03.01 (Metals -- Mechanical Testing; Elevated and Low-Temperature Tests; Metallography)
To find similar documents by classification:
17.040.30 (Measuring instruments)
21.060.01 (Fasteners in general)
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Document Number
ASTM-E1685-00
Revision Level
2000 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
Oct. 10, 2000
Document Type
Practice
Page Count
4 pages
Committee Number
E28.13