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BASF <br /> We create chemistry <br /> January 02,2019 <br /> Miles Sand &Gravel Company <br /> 663 Pease Road <br /> Burlington,Washington 98233 <br /> Attention: Michael Craig <br /> Project: Ready-Mix Concrete Projects <br /> Project location: Washington State <br /> Certificate of Conformance <br /> MasterPolyheed®997 Admixture (formerly PolyHeed 997) <br /> BASF Corporation Admixture for Concrete <br /> I, Richard Hubbard, Sr. Technical Marketing Specialist for BASF Corporation, Cleveland, Ohio, <br /> certify: <br /> That MasterPolyheed 997 admixture is a BASF Corporation Mid-Range Water-Reducing <br /> Admixture for concrete; and <br /> That MasterPolyheed 997 and PolyHeed 997 admixture are the same product having identical <br /> composition, differing only in designation; and <br /> That no calcium chloride or chloride based ingredient is used in the manufacture of <br /> MasterPolyheed 997 admixture; and <br /> That MasterPolyheed 997 admixture, based on the chlorides originating from all the ingredients <br /> used in its manufacture, contributes less than 0.00012 percent(1.2 ppm) chloride ions by weight <br /> of the cement when used at the rate of 65 mL per 100 kg (1 fluid ounce per 100 pounds) of <br /> cement; and <br /> That MasterPolyheed 997 admixture meets the requirements for a Type A, Water-Reducing <br /> Admixture, and Type F, Water-Reducing, High Range Admixture specified in ASTM <br /> C494/C494M, the Standard Specification for Chemical Admixtures for Concrete, as well as the <br /> requirements of Type A and Type F admixtures as specified in Corps of Engineers'CRD-C 87 <br /> and AASHTO M194. <br /> (5?'s,%4\-- 17---A616.4 <br /> Richard Hubbard <br /> Sr. Technical Marketing Specialist <br /> BASF Corporation <br /> Admixtures Systems MASTER® <br /> 23700 Chagrin22nd >>BUILDERS <br /> Cleveland,,Ohio <br /> o 44122 <br /> Telephone(216)839-7500 SOLUTIONS <br />