Eurofins Environmental Testing Australia Quality Practices
Eurofins Environment Testing operates a quality system that is fully accredited by NATA (National Association of Testing Authorities, Australia) under ISO/IEC 17025:2005 and is managed and overseen by our National Quality Manager in conjunction with the Management Team.
Quality Control (QC) parameters follow guidelines delineated in the National Environment Protection (Assessment of Site Contamination) Measure April 2011, Schedule B3, Guideline on Laboratory Analysis of Potentially Contaminated Soils and US EPA SW-846 Chapter 1: 'Quality Control'. It comprises the following when a laboratory process batch is deemed to consist of up to 20 samples that are similar in terms of matrix and test procedure, and are processed as one unit for QC purposes. If more than 20 samples are being processed, they are considered as more than one batch.
One method blank per process batch.
There should be at least one duplicate per process batch, or two duplicates if the process batch exceeds 10 samples.
Laboratory control sample (LCS)
There should be at least one LCS per process batch.
There should be one matrix spike per matrix type per process batch.
Control charts are used as a mechanism of measuring and monitoring whether laboratory processes are in control viz are stable, with variation only coming from sources common to the process then no corrections or changes to process control parameters are needed or desired. If the control chart indicates that the monitored process is not in control then the process is stopped immediately and procedures initiated to bring the system back in control. The control chart is a basic tool of quality control. All information is available for inspection if desired.