Except for water samples, when a material submitted is sufficient in size to allow a small amount of excess original and/or pretreated sample to be archived, we will archive the sample for a few months following the time of reporting / release of results. This is done as an internal Quality Assurance measure to allow for back-up analyses or additional investigations to be performed, if needed.
Following this retention period, all sample bags and excess sample materials (original and pretreated) will be disposed by incineration.
If you require the return of any unused original or pretreated excess sample materials, your request MUST be made in writing at the time of submission (we may not be able to honor later requests).
Please provide the shipping address and delivery option:
1. Regular US parcel post (costs may apply for heavy/international shipments)
Package is not traceable and we have no responsibility outside of shipping it back. Note: We do not send back gas bags and other bulky containers through USPS.
2. FedEx / UPS
Package is traceable. Additional charges will be due. Credit card information is required to pay for the shipping costs.
If you have a FedEx, UPS or DHL account and would prefer to send it through their service, please provide us your account number. We can also prepay and invoice you directly the shipping costs.
If you have any questions regarding archival sample retention time or sample returns, please contact us.