49 CFR 179.201-4 - Material.
All fittings, tubes, and castings and all projections and their closures, except for protective housing, must also meet the requirements specified in ASTM A 262 (IBR, see § 171.7 of this subchapter), except that when preparing the specimen for testing the carburized surface may be finished by grinding or machining.
[68 FR 75762, Dec. 31, 2003]
Title 49 published on 2014-10-01
no entries appear in the Federal Register after this date.