1. Scope 1.1 This specification establishes the criteria for the manufacture, quality assurance testing, inspection, installation, field acceptance testing, and product marking of vitrified clay pipe to be used in jacking, sliplining, in casings, and in tunnels for the conveyance of sewage, industrial wastes, and storm water. 1.1.1 Sections 3 through 6, and 8 of this specification contain manufacturing, quality assurance testing, inspection, and product marking criteria which are applicable to vitrified clay pipe prior to installation. 1.1.2 Section 7 of this specification contains criteria for the installation and field acceptance testing of vitrified clay pipe. 1.2 This specification also covers materials and test requirements for jointing of the pipe.