This sterile 27oz (798mL) standard Whirl-Pak® bag measures 5 x 12in (12.5x 30.5cm) and has a thickness of 3.0mil (0.076mm). The Whirl-Pak® sample bag is made of a co-extrusion of low-density and linear low-density, virgin polyethylene composing an exceptionally clear film with superior strength with guaranteed sterility. Capacity is measured in fluid ounces when the bag is closed and tab is folded over three times. A felt tip marker can be used to write on the bag. Bag should not be used at temperatures above 180°F (82°C). Bag can be frozen to any temperature, even with liquid nitrogen (careful handling required after freezing). Manufactured under a quality management system certified to ISO9001, and FDA approved for food contact. Sterilized after manufacturing. The Whirl-Pak® sample bag is not autoclavable. Sterile. Material: Polyethylene. Dimensions (W x L): 5 x 12in (12.5x 30.5cm). Thickness: 2.5mil (0.064mm). Capacity: 27oz (798mL). Nasco® #: B00990WA.