Five years of quality assurance in laboratories associated with the manufacture of Portland cements

This activity has been further promoted by the existence in the U.K. for some 53 years, and over much of the period under discussion, of a Common Price Agreement (CP.A.) which meant that manufacturers were restricted to competing on service and on quality. With the latter in mind, they had, through the Cement Makers Federation (C.M.F.) introduced on their own initiative a system of testing which had as its objective as near a common quality product as possible - this being consistent with the concept of a common price.