Description

Scope

This standard establishes minimum requirements for cold-applied petrolatum tape and petroleum wax tape coatings used on the exterior of steel water pipelines.

This standard covers exterior coatings that consist of cold-applied petrolatum or petroleum wax primer, petrolatum or petroleum wax saturated tape coatings and their applications to special sections, connections, and fittings to be used with buried or submerged steel water pipelines. The primers and tapes are not intended for use with steel joints or sections of steel pipe where coatings of cement mortar or concrete are applied directly onto the bare steel pipe. These coatings may be field- or shop-applied according to the provisions of this standard.

1.1.1 Conditions not covered in this standard. This standard does not cover the additional materials and procedures that may be required for difficult conditions, such as those encountered in building some submarine lines, casing pipe, river crossings, and lines that are in rocky areas or in severe soil stress. Consult the manufacturer for the additional materials and procedures that may be required for these conditions. These materials may not be covered by this standard.

1.1.2 Maximum temperatures. The tape coatings covered in this standard are intended for use at the service temperature of potable water but have performed properly at higher than normal service temperatures. When higher than normal temperatures are anticipated, the manufacturer should be consulted for recommendations suitable to the purchaser’s needs.