1.1 This specification covers self supporting, molded polyethylene, tight head drums designed for surface and air shipment, ranging in size from 5 gal [19 L] to and including 55 gal [208 L].1.2 The polyethylene plastics to be used may be virgin This specification covers self-supporting, molded polyethylene, tight head drums for use in surface and air shipments. Drums shall be manufactured from virgin or recycled polyethylene plastics, and with handles and openings the number of which depends