Each specification cylinder that becomes due for periodic requalification, as specified in the following table, must be requalified and marked in conformance with the requirements of this subpart. Requalification records must be maintained in accordance with §180.215.
A Cylinder Must Be Condemned When: On visual inspection, it meets a condition for condemnation outlined in CGA pamphlets C-6, C-6.1, C-6.2, and C-6.3, as applicable. The cylinder leaks through its wall. Evidence of cracking exists to the extent that the cylinder is likely to be weakened appreciably. For a DOT specification cylinder (excluding DOT [...]