Fig. 10
Corrosion rate data from natural and archaeological analogue studies (from Miller et al. 2000). The corrosion rates for the archaeological artefacts range from 0.1 to 10 μ ma−1 (note that samples 1 and 2 are from oxidising marine conditions; details of all other samples included in Johnson and Francis 1980). The Nagra base case corrosion rate for steel canisters from the Projekt Gewähr safety assessment is also shown for comparison