Banque de Tissus pour la Recherche Laboratory Procedures for Human Tissues August 2004 _______________________________________________________________ NITROGEN FREEZING PROTOCOL FOR MUSCLE BIOPSY Equipment and Materials Cryotubes (2 ml) with screw-top and silicon joints. Liquid nitrogen. Dry ice "Transport form-human tissue specimens" 1 containing the information necessary for optimal utilization of tissues (this information will be rendered anonymous ; the donor cannot be identified). Procedure 1. Place the specimen in a dry tube. 2. Close the tube and label it (please note that certain types of ink are erased in liquid nitrogen). 3. Plunge the tube in liquid nitrogen. 4. Fill out the specimen fact sheet if necessary. 5. Store the tube in a freezer at -80°C or in dry ice until sending it, or collection by our services. 1 The specimen fact sheet is provided by the bank BTR – Cécile Jaeger - August 2004 Copyright Eurobiobank 2005 1/1