Precision and deviation check of imported iron ore automatic sampling system
The quality analysis of imported bulk mineral products included three main links:sampling,sample preparation and testing.Among them,the sampling had the greatest influence on the final result,followed by the sample preparation and testing.Precision and deviation were important performance indicators of the sample preparation system,which directly determined the representativeness and accuracy of the samples taken by the system.According to the ISO 3085:2019 standard,the precision of the new imported iron ore automatic sampling system in an iron and steel enterprise was checked and verified,and the deviation of the system was checked and verified according to the ISO 3086:2006 standard.Through the analysis of the test data,it was concluded that the precision and deviation of the system met the requirements of ISO 3082:2017 standard,which could be used for the daily sampling and sample preparation of imported iron ore,and provided the basis for the system performance acceptance of the enterprise.At the same time,it had a good example for the check and performance evaluation of related systems or equipment.
iron oresample preparation systemprecisiondeviationchecking