Abstract
The international joint project HYCREF (Contract No. G6RD-CT-2002-00854), funded by the European Commission in the 5th Framework programme, aimed to develop methods to prepare homogeneous and stable reference materials of water, soil, and waste contaminated with mineral oil hydrocarbons and to certify the mineral oil content by gas chromatographic methods. The results of a feasibility study for the preparation of three soil reference materials are discussed in this paper, and for the preparation of three waste reference materials in the second part (Koch et al., Accred Qual Assur submitted for publication). The soil materials were selected to represent different soil types and contamination levels. The project plan set three requirements for these reference materials: uncertainty in the mineral oil content resulting from the certification exercise <5%, a sample inhomogeneity of <3% and a minimum long-term stability of 5 years. For the most part, these requirements were met within this project.
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References
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Acknowledgements
The followed persons are thanked for their time and effort: Marjanne van den Berg was responsible for preparation of the peat material. Seppo Pönni was responsible for sieving, homogenization, and bottling of sandy soil samples. Marjo Sipilä and Anne Markkanen carried out all the laboratory work on the sandy soil. Keijo Tervonen and Markku Ilmakunnas were responsible for packaging and sending the soil samples for the test certification study. Thanks are also due to the laboratories that participated in the trials.
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Sainio, P., Mäkinen, I., Hutter, JW. et al. Feasibility study for the preparation of certified reference materials part I – mineral oil contaminated soils. Accred Qual Assur 11, 116–121 (2006). https://doi.org/10.1007/s00769-006-0101-4
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DOI: https://doi.org/10.1007/s00769-006-0101-4