Made from fully bleached, high alpha cellulose pulp. It does not contain any post consumer waste recycled pulp. | Paper is free of metal particles, waxes, plasticizers, residual bleach, peroxide, sulfur content is less than 0.0008% reducible sulfur. | The lignin content is measured by the phloroglucinol test with a Kappa number of 5 or less. | Metallic Impurities, Iron will not exceed 150 ppm and copper shall not exceed 6 ppm. No optical brightening agents are used in the pulp. | The paper contains a minimum of 3% calcium carbonate (CaCO3) with a pH range 8-9.5

The short top boxes have removable, close-fitted tops to seal out dust and insects. | Embossed labeling areas on box end and lid front neatly, accurately and consistently locate and position standard pressure-sensitive (PSA) identification label. | Short top boxes are manufactured from .040 and .060 tan-finished, acid- and lignin-free Archival Grade boxboard. | Metal edge clamps are corrosion treated in black polyester coating with wax-free polyester on the blind side. | Clamps provide rigidity and high stacking strength.