Specifications include, but are not limited to: Construction: B-flute corrugated cardboard. Sides, bottom, and ends must be double thickness, and may be triple thickness on any or all sides and bottoms. Single thickness on the side or bottom or end disqualifies the box from consideration. Boxes must have handholds. Box dimensions before assembly must be less than 36” long and 36” wide when laying flat. Lid size: to fit box, and have about a 1 to 1 ½ inch vertical overlap. Box size: 15 inches long by 12 inches wide by 10 inches high. Color: White or a light color Chemical composition: # pH within the range of 8.0 - 9.5, # calcium carbonate buffer (reserve) of 3% - 4% # residual sulfur of one (1) part per million (ppm) or less # iron equal to or less than forty (40) ppm # copper of one (1) ppm or less # must be certified as passing the Photographic Activity Test (PAT), ISO18916 # lignin free