3terminology

For the purpose of this standard, the following definitions shall apply.

3.1

Fittings — Term used to denote fittings like elbows, tee, cross, etc.

3.2

Socket — The screwed coupling utilized in jointing the tubes together.

NOTE — The term socket is synonymous with the term coupling, barrel and column socket.

3.3

Tube (Pipe) — A long, hollow, open-ended object circular or other cross-section. The terms tube and pipe are often used synonymously.

3.4

Tubular — A term used to include pieces, long-

screws, bends springs, return bends and barrel nipples.