Internal Corrosion Control: General

§ 192.475 Internal Corrosion Control: General#

(a)Corrosive gas may not be transported by pipeline, unless the corrosive effect of the gas on the pipeline has been investigated and steps have been taken to minimize internal corrosion.#

(b)Whenever any pipe is removed from a pipeline for any reason, the internal surface must be inspected for evidence of corrosion. If internal corrosion is found:#

(1)The adjacent pipe must be investigated to determine the extent of internal corrosion;#

(2)Replacement must be made to the extent required by the applicable paragraphs of §§ 192.485, 192.487, or 192.489; and#

(3)Steps must be taken to minimize the internal corrosion.#

(c)Gas containing more than 0.1 grain of hydrogen sulfide per 100 cubic feet (2.32 milligrams/m3) at standard conditions may not be stored in pipe-type or bottle-type holders.#