TS EN 932-6

TS EN 932-6 is part of the aggregate testing series and provides adapted definitions of repeatability and reproducibility for the specific context of aggregate sampling and testing. Rather than prescribing a test method, it establishes the terminology used to describe how closely results agree under defined conditions.

How these measurement concepts work in aggregate testing

In general metrology, repeatability describes the closeness of results obtained under the same conditions, while reproducibility refers to the degree of agreement between results obtained under changed conditions such as different laboratories, operators or times. For aggregates, this distinction matters because test outcomes can be influenced by sampling quality, particle distribution, specimen preparation and the inherent heterogeneity of mineral materials. This standard adapts the definitions from ISO 5725-1 to that technical setting.

The practical value of this vocabulary is consistency: it helps laboratories and users discuss precision, compare results and interpret variability using the same concepts. In that sense, the standard supports reporting and evaluation across aggregate test work, while leaving the actual test procedures to the relevant test standards.

• Provides adapted definitions for aggregate sampling and testing.
• Uses the metrological concepts of repeatability and reproducibility.
• Supports consistent comparison of laboratory results.
• Serves as a terminology reference for aggregate test reporting.