193.2304 Corrosion control overview.
(a) Subject to paragraph (b) of this section, components may not be constructed, repaired, replaced, or significantly altered until a person qualified under §193.2707(c) reviews the applicable design drawings and materials specifications from a corrosion control viewpoint and determines that the materials involved will not impair the safety or reliability of the component or any associated components.
(b) The repair, replacement, or significant alteration of components must be reviewed only if the action to be taken --
(1) Involves a change in the original materials specified;
(2) Is due to a failure caused by corrosion; or
(3) Is occasioned by inspection revealing a significant deterioration of the component due to corrosion.
(49 U.S.C. 1674(a); 49 CFR 1.53 and Appendix A to Part 1)
[Amdt. 193-2, 45 FR 70404, Oct. 23, 1980]
193.2305 Procedures.
(a) In performing construction, installation, inspection, or testing, an operator must follow written specifications, procedures, and drawings, as appropriate, that are consistent with this part, taking into account relevant mechanical, chemical, and thermal properties, component functions, and environmental effects that are involved.
(b) All procedures, including any field revisions, must be substantiated by testing or experience to produce a component that is reliable and complies with the design and installation requirements of this part.
193.2307 Inspection.
(a) All construction, installation, and testing activities must be inspected as frequently as necessary in accordance with a written plan to assure that --
(1) Activities are in compliance with all applicable requirements of this subpart; and
(2) Components comply with the applicable material, design, fabrication, installation, and construction requirements of this part.
(b) In addition to the requirements of paragraph (a) of this section, the construction of concrete storage tanks must be inspected in accordance with ACI 311.4R-88 or ACI 311.5R-88.
(c) Each operator shall have a quality assurance inspection program to verify that components comply with their design specifications and drawings, including any field design changes, before they are placed in service.
[58 FR 14522, March 18, 1993]
193.2309 Inspection and testing methods
Except as otherwise provided by this subpart, each operator shall determine, commensurate with the hazard that would result from failure of the component concerned, the scope and nature of --
(a) Inspections and tests required by this subpart; and
(b) Inspection and testing procedures required by §193.2305.
193.2311 Cleanup.
After construction or installation, as the case may be, all components must be cleaned to remove all detrimental contaminants which could cause a hazard during operation, including the following:
(a) All flux residues used in brazing or soldering must be removed from the joints and the base metal to prevent corrosive solutions from being formed.
(b) All solvent type cleaners must be tested to ensure that they will not damage equipment integrity or reliability.
(c) Incompatible chemicals must be removed.
(d) All contaminants must be captured and disposed of in a manner that does not reduce the effectiveness of corrosion protection and monitoring provided as required by this part.
193.2313 Pipe welding.