Specifications include, but are not limited to: Materials: A. All Sodium Chloride shall be deep mined rock salt Sodium Chloride (NaCl), minimum 97 percent and shall conform to ASTM-D632 Specifications unless specified otherwise. The salt must be treated with an anti-caking agent and must be delivered in a free flowing condition. B. Grading of Sodium Chloride: The Sodium Chloride shall be in the form of deep mined rock salt and shall conform to the following requirements for a particle size, when tested by means of laboratory sieves: Sieve Analysis Screen Size Acceptable Passing Grade 7/16” Sieve (minimum) 100% 3/8” Sieve 95 – 100 % #4 (4760-Micron Sieve) 20 – 90 % #8 (2380-Micron Sieve) 10 – 60 % #30 (590-Micron Sieve) 0 – 10 %
