Please refer to the list of optimum sample sizes before collecting samples in the field. In addition to collecting large enough samples for conventional dating, the laboratory requests as much information about the sample provenance as possible. It may be useful for new researchers to refer to our Sample Submission Form (pdf) before collecting samples from the field. This form should also accompany all samples submitted to the laboratory.

In most cases, normal handling of the samples will not cause contamination, however, the samples should be protected from excess exposure to sources of extraneous carbon. Wood samples may be wrapped in aluminum foil and labeled with appropriate sample identification. Care must be taken when using aluminum foil for wrapping charcoal samples, as friable samples may not survive transport.

We recommend that all researchers contact the radiocarbon laboratory to discuss scheduling and cost before submitting samples.