Section 109.08 - Materials(1) All pipe six inches or greater in diameter shall have a specified minimum yield strength (SMYS) of at least 35,000 psig.(2) All pipe six inches or greater in diameter shall have a wall thickness of at least 0.280 inches. All pipe less than six inches in diameter shall be at least Schedule 40 wall thickness.
220 CMR, § 109.08
Amended by Mass Register Issue 1432, eff. 12/11/2020.