A comprehensive assessment method for the health status of bronzes unearthed at archaeological sites

Heritage Science

Table 4 Correlation coefficient of assessment indicators

Artefact number	Incomplete area ratio	Crack length ratio	Corrosion area ratio	Resistance	Hardness
K7-1 Bronze Figurehead	0.3381	1.0000	1.0000	0.9386	0.6896
K7-2 Bronze	0.4286	0.4286	0.4737	0.4557	0.6000
K7-3 Bronze Bird	1.0000	1.0000	0.3913	0.3333	0.3954
K7-4 Bronze Human Mask	0.4323	0.4540	0.4286	0.4871	0.8146
K7-5 Bronze Fragment	0.6000	0.6000	0.6000	0.8084	0.4286
K8-1 Bronze Beast	0.6000	0.6000	0.6000	0.6000	0.4353
K8-2 Bronze Lei	0.3678	0.4543	0.6923	0.4230	0.6601
K8-3 Bronze Beast	1.0000	1.0000	0.6716	0.3443	0.3413
K8-4 Bronze Figurehead	1.0000	1.0000	0.9000	0.9730	0.3431
K8-5 Bronze Zun	0.3359	0.3928	0.3333	0.3957	0.7104
K8-6 Bronze Zun	0.5288	0.3569	1.0000	0.4455	0.8755
K8-7 Bronze Figurehead	0.7629	0.6000	0.4286	0.6825	0.4564
Average value	0.6162	0.6572	0.6266	0.5739	0.5625