These specifications were developed to provide specific performance criteria for materials for unbonded single strand tendons, and detailed recommendations for the fabrication and installation of unbonded single strand tendons. Specifications are presented for tendons in non-aggressive environments and for tendons in aggressive environments. Where appropriate, a commentary follows most major sections of the document.

The more restrictive materials, fabrication, and construction requirements for tendons used in aggressive environments are essential to the long-term durability of tendons used in such circumstances.