Differences from existing UK practice represented by prEN 197–1:1994

The conformity criteria given in Appendix A of the current British Standards for cement are based on clause 10 of the June 1989 draft of the European prestandard. The basic methods of autocontrol assessment by variables and attributes remains unchanged in prEN 197-1, however, there are changes to terminology, test frequencies and limit values. Principal differences are as follows:-

1. Consumers risk now re-titled “allowable probability of acceptance CR”. Producers risk now not referenced.