The term flame screen means a fitted single screen of corrosion-resistant wire of at least 30 by 30 mesh, or two fitted screens, both of corrosion-resistant wire, of at least 20 by 20 mesh, spaced not less than
1/2 inch or more than 1
1/2 inches apart.
source: CGFR 65-50, 30 FR 16657, Dec. 30, 1965, unless otherwise noted.
cite as: 46 CFR 30.10-25