Shall have a briquette density of 50 pounds per cubic foot (800 kg/m3) minimum. Nominal briquette size shall range from 12” to 24” (30.5 x 61 cm) x 12” to 24” (30.5 x 61 cm) in uniform profile with a variable length of 8” (20.3 cm) minimum and 48” (122 cm) maximum. Briquettes shall be bundled or stacked on skids and secured with a minimum of one vertical band per row and a minimum of one girth band per horizontal layer. Briquettes not to overhang pallet. Total package height shall be 48 (122 cm) maximum. Banding shall be at least 5/8” (1.6 cm) wide by .020” (5 mm) thick steel strapping or equivalent strength. The weight of any bundle shall not exceed 4,000 pounds (1.814 mt). Material must be magnetically separated and free of steel, plastic, glass, dirt and all other foreign substances. Any and all aluminum items other than UBC are unacceptable. Any free lead is basis for rejection. Items not covered in the specification, including moisture, and any variations to this specification should be agreed upon prior to shipment between the buyer and seller.