Because Canada uses the accreditation model of a national accrediting authority, if an organisation tests a firestop in or for use in Canada, in accordance with the correct standard (ULC-S115), but is not accredited by the SCC, the test results cannot be used to in any approvals of field installations on Canadian construction sites. If, on the other hand, the test laboratory is also accredited for product certification, then before the test takes place, a follow-up or certification agreement is anticipated between the certifier and the submitter of the test who desires a rating or a listing. An inspector from the certifying organisation witnesses the manufacture of the product or products to be tested, and checks the manufacturing procedures against the process standard that is in place and by then on file with the certifying organisation. The process standard includes all information necessary to manufacture the product or products, including equipment descriptions, tolerances, chemical formulas and purchasing specifications for ingredients or components. The manufactured goods are sealed by the inspector and then shipped to the laboratory, where the contents are used to build the test specimen in accordance with the manufacturer's instructions.