§197.312. Breathing supply hoses.

46 C.F.R. § 197.312

(a)

Each breathing supply hose must—

(1)

Have a maximum working pressure that is equal to or exceeds—

(i)

The maximum working pressure of the section of the breathing supply system in which used; and

(ii)

The pressure equivalent of the maximum depth of the dive relative to the supply source plus 100 psig;

(2)

Have a bursting pressure of four times its maximum working pressure;

(3)

Have connectors that—

(i)

Are made of corrosion-resistant material;

(ii)

Are resistant to accidental disengagement; and

(iii)

Have a maximum working pressure that is at least equal to the maximum working pressure of the hose to which they are attached; and

(4)

Resist kinking by—

(i)

Being made of kink-resistant materials; or

(ii)

Having exterior support.

(b)

Each umbilical must—

(1)

Meet the requirements of paragraph (a) of this section; and

(2)

Be marked from the diver or open bell end in 10-foot intervals to 100 feet and in 50-foot intervals thereafter.

Notes, amendments, and revision history

Authority: 33 U.S.C. 1509; 43 U.S.C. 1333; 46 U.S.C. 3306, 3703, 6101; Department of Homeland Security Delegation No. 0170.1.

Source: CGD 76-009, 43 FR 53683, Nov. 16, 1978, unless otherwise noted.