Utrustning för hantering av petroleumprodukter och naturgas

This document describes technical measures to be carried out at crossings and parallelisms of buried metal pipelines influenced by systems. It provides guidance on how the design, construction, operation, maintenance, and decommissioning phases of systems affect buried metal pipelines. Electromagnetic, DC interference and thermal influences on pipeline coatings are described.

Acceptable levels of interference are discussed.

Guidance is provided for calculation methods to establish an acceptable separation distance between the pipeline and the source of interference.

The following aspects are not covered in this document:

Interference from other AC sources

Contractual responsibilities

Personnel safety.

This document specifies requirements for surface preparation, materials, application, inspection and testing of internal coating lining systems that are intended to be applied on internal surfaces of steel storage tanks of crude oil, hydrocarbons and water for corrosion protection. It covers both new construction and maintenance works of tank internal coating and lining as well as the repair of defective and deteriorated coating/lining. This document also provides requirements for shop performance testing of the coated/lined samples and the criteria for their approval.