ABSTRACT
For soundness, chloride content and pozzolanicity, it was considered that the limit value should be set no higher than the characteristic value (no characteristic value as such for pozzolanicity, but the maximum period for a positive test result pertains). Under these circumstances, TC51/WG6 were asked to consider whether lower characteristic values would be appropriate. At the time of writing, it appears unlikely that any such amendment will be made. The limit values, although not consistent with the statistical approach, provide further reassurance to the consumer by constraining the permitted deviation of individual test results. It should be noted, that clause 9 does not address acceptance inspection at delivery. The recommendation is made, however, that any acceptance inspection of CEM-cement, should use, at least, the limit value conformity criteria given.
