RH simulation model for canvas paintings protected by an aluminium backplate and an additional hygroscopic layer

Heritage Science

Table 1 Conditionals to select ΔSCott%_i, MCCott%_i and ΔSVoidCott%_I

Processes	Conditionals for cotton and canvas sorption	ΔSCott%_I and ΔSCanv%	MCCott%_I and MCCanv%_i	ΔSVoidCott%_I and ΔSVoidCanv%_I
Adsorption	MC_i−1 < EMC_i < and MC_i−1 + WADS > EMC_i	EMC_i − MC_i−1	EMC_i	MC_i−1 − EMC_i
Adsorption	MC_i−1 < EMC_i and (MC_i−1 + WADS = EMC_i or MC_i−1 + WADS < EMC_i)	WADS	MC_i−1 + WADS	− WADS
Desorption	MC_i−1 > EMC_i and (MC_i−1 + WDES > EMC_i or MC_i−1 = EMC_i)	WDES	MC_i−1 + WDES	− WDES
Desorption	MC_i−1 > EMC_i < and MC_i−1 + WDES < EMC_i	EMC_i − MC_i−1	EMC_i	MC_i−1 − EMC_i