Specifications include, but are not limited to: SODIUM CHLORIDE ROADWAY DE-ICER Sodium Chloride Roadway De-Icer supplied under contract shall conform to the requirement of ASTM D632-12, Type1, Grade 1. 1. Moisture content shall not exceed 2.0% by weight for Mined Rock Salt 2. All sodium chloride uniformly treated with either of the following anti-caking compounds: Yellow Prussiate of Soda-Sodium Ferro Cyanide or Prussian Blue-Ferric Ferro Cyanide. The anticaking compound introduced uniformly throughout the sodium chloride at such a rate that a minimum of 20-PPM anti-caking compound is present. 3. Any sodium chloride that is not free-flowing and in usable condition upon arrival at its destination is rejected. 4. Physical Requirements. Mined Rock Salt Chemical Composition: Total chloride expressed as NaCL a minimum of 95.0%. MINED ROCK SALT GRADING: THE SODIUM CHLORIDE SHALL CONFORM TO THE FOLLOWING PARTICLE SIZE DISTRIBUTION SPECIFICATIONS AS DETERMINED BY LABORATORY SIEVES. PASSING A ½ “ SIEVE (12.50MM 100% PASSING A 3/8” SIEVE ( 9.50MM) 95.0% - 100% PASSING A N0.4 SIEVE ( 4.75MM) 20.0% - 90.0% PASSING A NO.8 SIEVE ( 2.36MM) 10.0% - 60.0% PASSING A NO. 30 SIEVE ( 0.60MM) 0.0% - 15.0% PERMISSIBLE VARIATION IN THE CASE OF SODIUM CHLORIDE SAMPLES AFTER DELIVERY TO THE PURCHASER: TOLERANCE FROM THE FOREGOING SPECIFICED VALUE ALLOWED FOR GRADATION NOT TO EXCEED 5.0 PERCENTAGE POINTS ON EACH SIEVE SIZE EXCEPT THE 12.5 MM, (1/2 IN.) AND 9.5 MM (3/8 IN.)
