The measurement of water absorption by full immersion (WA) can be considered an inexpensive alternative to N2 physisorption (BET), helium pycnometry, mercury intrusion porosity (MIP), because allows to evaluated the open porosity that can be entered by water. More, for stones of interest in the field of Cultural Heritage such measure results, may be, more suitable because water accessibility is the real direct and/or indirect source of their degradation. The WA is ruled by a very old Normative [1] that, in our opinion, foresees a handling of sample letting to a scarcely accurate measure; so, we here propose a procedure that don’t need sample handling.
The old italian technical normative NORMAL 07-81 can be improved? A possible accurate measurement of water absorption by stone / Sammartino, Maria Pia; Reale, Rita; S. H., Plattner; Visco, Giovanni. - STAMPA. - (2012), pp. 48-49. (Intervento presentato al convegno Use of Multivariate Analysis and Chemometry in Cultural Heritage and Environment tenutosi a Roma (Italy) nel 27-30 May 2012).
The old italian technical normative NORMAL 07-81 can be improved? A possible accurate measurement of water absorption by stone
SAMMARTINO, Maria Pia;REALE, RITA;VISCO, GIOVANNI
2012
Abstract
The measurement of water absorption by full immersion (WA) can be considered an inexpensive alternative to N2 physisorption (BET), helium pycnometry, mercury intrusion porosity (MIP), because allows to evaluated the open porosity that can be entered by water. More, for stones of interest in the field of Cultural Heritage such measure results, may be, more suitable because water accessibility is the real direct and/or indirect source of their degradation. The WA is ruled by a very old Normative [1] that, in our opinion, foresees a handling of sample letting to a scarcely accurate measure; so, we here propose a procedure that don’t need sample handling.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
