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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Chart showing the course of changes of the linear changes of tested specimen series of superabsorbent polymers (SAP) (SAP MR 50, SAP MO 50 and SAP DO 50) in relation to linear changes of the reference series ratio at each day of the first month of measurments.