CFR /  Title 49  /  Part 180  /  Sec. 180.209 Requirements for requalification of specification

(a) * * *

(1) * * *

Table 1--Requalification of Cylinders------------------------------------------------------------------------

Specification under which Minimum test Requalification

cylinder was made pressure (psig) \2\ period (years)------------------------------------------------------------------------

* * * * * * *4B, 4BA, 4BW, 4B240ET....... 2 times service 5, 7, 10, or 12 (see

pressure, except Sec. 180.209(e),

non-corrosive (see (f), and (j)).

Sec. 180.209(g)).

* * * * * * *DOT 4E...................... 2 times service 5 or 7 (see Sec.

pressure, except 180.209(e)).

non-corrosive (see

Sec. 180.209(g)).------------------------------------------------------------------------