§18.27. Gaskets.

30 C.F.R. § 18.27

A gasket(s) shall not be used between any two surfaces forming a flame-arresting path except as follows:

(a)

A gasket of lead, elastomer, or equivalent will be acceptable provided the gasket does not interfere with an acceptable metal-to-metal joint.

(b)

A lead gasket(s) or equivalent will be acceptable between glass and a hard metal to form all or a part of a flame-arresting path.

Notes, amendments, and revision history

Authority: 30 U.S.C. 957, 961.

Source: 33 FR 4660, Mar. 19, 1968, unless otherwise noted.