Specifications include, but are not limited to: Rock Salt - Sodium Chloride shall contain at the time of delivery, not more than 0.5 percentmoisture when dried at 105 for degrees Celsius (221 degrees Fahrenheit) to constant weight. Rock Salt - Sodium Chloride when dried to constant weight as specified above shallconform to the following chemical composition requirements:-Sodium Chloride (NACI), minimum 97.0%.-Solubility in boiling distilled water, minimum 99.0%. The Rock Salt- Sodium Chloride when dried as specified above shall also conform to thefollowing grading requirements as determined by laboratory sieves.Total Percent PassingSievesMinimum Maximum1/8 inch100---No. 39035No. 855No. 3005The sieve analysis shall be in accordance with the applicable provisions of currentAASHTO Designation T27
