It follows the basic library cataloging procedures for organized storage, easy and quick retrieval of samples. The samples are weighed and packed into the trays. After this the trays are shelved into the bays. All the samples are well labeled and so are the trays, shelves and bays for easy identification during retrieval. This information is stored in a database information system. The sample position can be viewed by keying in the serial number, country of origin, site name or study name into the database. The information system will give the exact position of the sample in the tray, the status (available or empty or missing) and the sample type (standard, reference or back up). After each retrieval the sample's.
