Supports or braces may not be welded directly to pipe [a tube, usually cylindrical, through which a hazardous liquid or carbon dioxide flows from one point to another.]
that will be operated at a pressure of more than 100 p.s.i. (689 kPa)
gage.
[Amdt. 195-22, 46 FR 38360, July 27, 1981, as amended
by Amdt. 195-63, 63 FR 37506, July 13, 1998]