§ 56.13021. High-pressure hose connections.
50 words·~1 min read·
/us/cfr/t30/s§ 56.13021·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Except where automatic shutoff valves are used, safety chains or other suitable locking devices shall be used at connections to machines of high-pressure hose lines of 3/4-inch inside diameter or larger, and between high-pressure hose lines of 3/4-inch inside diameter or larger, where a connection failure would create a hazard.