Specifications include, but are not limited to: The contractor shall provide sodium chloride, medium grade, deicing salt in bulk. Salt shall conform to type 1, grade 1, as determined by the American Society for Test and Materials (ASTM) standard D362, Standard Specification for Sodium Chloride. Rock salt must have a chemical composition with a minimum sodium chloride (NaCl) component of 95.0% (by weight). Salt must be free of any foreign material, such as mud, rocks, grader teeth, wood, tarpaulins, etc. The contractor must furnish rock salt in bulk and treat it with a non-toxic anti-caking agent. The applied anti-caking agent must prevent caking and hardening for a minimum of one (1) year following the delivery, whether salt is stored outdoors, uncovered or indoors. The anti-caking agent must equal or exceed the performance of sodium ferrocyanide.
