Abstract
This paper presents information on the development of a reference material (RM) for the physical properties of clay soils. The list of certified characteristics included the liquid limit determined by the fall cone test, the plastic limit and the particle density determined by the pycnometric method. Establishment of the certified values of clay soil physical properties was performed by the method of interlaboratory comparisons. Absolute uncertainty interval for the certified values of liquid limit, plastic limit and soil particle density are found to be 1.9%, 1.5% and 0.03 g/cm3, respectively. The shelf life of the certified reference material is determined to be 5 years. The developed certified reference material is included into the State Register of the Approved Types of CRMs as CRM (GSO) 11038-2018. The CRM can be used for controlling the accuracy of certified characteristics measurements, conducting interlaboratory comparisons and monitoring the performance of individual laboratories.
Keywords
- Clay soil (loam)
- Soil physical properties
- Liquid limit
- Plastic limit
- Particle density
- Certified reference material
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Abbreviations
- CRM:
-
Certified reference material
- ILCs:
-
Interlaboratory comparisons
References
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Author Contribution Statement
I. N. Matveeva: research concept, collection of experimental data, analysis of experimental information, literature review, manuscript preparation,
V. V. Tolmachev: concept of research, critical analysis and revision of the article.
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Matveeva, I.N., Tolmachev, V.V. (2020). Preparation and Certification of a Reference Material for the Physical Properties of Clay Soils (Loam). In: Medvedevskikh, S., Kremleva, O., Vasil’eva, I., Sobina, E. (eds) Reference Materials in Measurement and Technology. RMMT 2018. Springer, Cham. https://doi.org/10.1007/978-3-030-32534-3_8
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DOI: https://doi.org/10.1007/978-3-030-32534-3_8
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