Section 245.534. Interior linings and coatings

(a) Coating or lining systems may be used to protect tank interiors from corrosion. The coating or lining system shall be designed in accordance with current codes of practices such as API 652 or associations such as NACE. Any appropriate coating which is bonded firmly to the interior surfaces may be used to protect a tank from corrosion.

(b) Specific requirements are as follows:

(1) Coatings and linings shall be chemically compatible with the substance to be stored.

(2) Coating material shall be applied and cured in strict accordance with manufacturer’s specifications.

(3) Surfaces shall be prepared and inspected in accordance with applicable Nationally-recognized codes and standards.

(4) Coatings used to protect the bottom of a tank shall extend up the side of the tank a minimum of 18 inches, while some forms of lining may cover the entire tank interior.

(5) Coatings shall be examined for blisters and air pockets, and tested for pinholes. The coating thickness shall be checked to assure compliance with manufacturer’s specifications.

(6) Defects in coating or lining systems shall be repaired or corrected prior to putting the tank or system into service.

(c) Interior linings or coatings shall be inspected by a third-party, Department-certified, aboveground storage tank inspector at installation, when undergoing a major modification, and at least every 10 years or as warranted or recommended by the manufacturer or design engineer.

The provisions of this § 245.534 amended November 9, 2007, effective November 10, 2007, 37 Pa.B. 5979. Immediately preceding text appears at serial pages (234759) to (234760).

Notation

Cross References

This section cited in 25 Pa. Code § 245.521 (relating to performance standards for aboveground storage tanks); 25 Pa. Code § 245.552 (relating to in-service inspections); 25 Pa. Code § 245.553 (relating to out-of-service inspections); and 25 Pa. Code § 245.612 (relating to performance and design standards).