What 5-year period must I consider to establish a reference pressure for stability of manufacturing and construction defects?
Section 192.917(e)(3) requires that operators consider the five years preceding identification of a high consequence area to determine a maximum operating pressure that will assure the stability of manufacturing and construction (M&C) threats. As long as operation does not involve pressures higher than the highest operating pressure experienced during those five years, any M&C threats can be considered stable. (The “preceding five years” referred to in sub-paragraph 192.917(e)(3)(i) is the same five years preceding HCA identification.) Operators should note that section 192.917(e)(3) specify that “the analysis must consider the results of prior assessments on the covered segment.” This includes any prior hydrostatic tests, including tests conducted after the pipe was installed. OPS considers that a hydrostatic test, meeting subpart J requirements, is sufficient to demonstrate that any manufacturing and construction defects will remain stable at the operating pressures related to that t
Related Questions
- Are integrity assessments required for manufacturing and construction defects, including seam defects, if the pipeline has been pressure tested in accordance with Subpart J?
- Are assessments required for manufacturing and construction defects, including seam defects, if the pipeline has not been pressure tested in accordance with Subpart J?
- What 5-year period must I consider to establish a reference pressure for stability of manufacturing and construction defects?
