Modelling wooden cultural heritage. The need to consider each artefact as unique as illustrated by the Cannone violin

Heritage Science

Table 3 Conditions in the showcase and in the concert rooms used as boundary conditions for the diffusion problem

Concerts ID	Violin player’s name	RH_showcase (%)	RH_concert (%)	ΔRH (%)	TOC (h)	ΔM_exp (g)	ΔM/TOC (g h⁻¹)
1	Mario trabucco	53.9	61.1	+ 7.2	3.00	0.38	0.13
2	Feng ning		40.8	− 13.1	2.75	− 0.65	− 0.24
3	Feng ning		41.4	− 12.5	2.75	− 0.37	− 0.13
4	Peter sheppard		42.9	− 11.0	2.00	− 0.39	− 0.19
5	Peter sheppard		47.4	− 6.5	4.00	− 0.25	− 0.06
6	Mario trabucco		61.7	+ 7.8	3.25	0.47	0.14
7	Salvatore accardo		50.9	− 3.0	4.25	− 0.15	− 0.04
8	Mario trabucco		55.3	+ 1.4	4.00	0.08	0.02
9	Mario trabucco		38.8	− 15.1	4.50	− 0.86	− 0.19

RH_showcase isn the average RH level in the conservation showcase, RH_concert is the average environmental RH measured during the whole period the violin was outside the case for the concert, ΔRH is (RH_concert–RH_showcase), TOC is the time the violin was kept outside the showcase for the concert, ΔM_exp is the mass variation measured as the difference between the value of mass when the showcase is opened and the value of mass just before closing again the instrument in the conservation showcase