Masking tape may become unattached in the cold. The completed form is placed in a separate double plastic bag. This is to keep the form dry. The form must contain identical information as located on the specimen bag if more than one specimen is submitted. Use an insulated outer container that is strong enough to withstand shipment, such as a Styrofoam container inside a cardboard box.
More refrigerant is needed in the summer through fall months because of the ambient temperature.
It freezes the tissue and can compromise the test. Gel packs or similar refrigerants are recommended. Ice is not recommended because it melts. Zip-lock bags are recommended. Use packing material such as newspaper to buffer the specimens and to absorb moisture.