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4Eco-Rental <br /> m, Solutions Calibration Certificate rev 8/9/11 <br /> Work Order No.:SE-061518 <br /> Date of Service: 10/25/2018 12:00:00 AM <br /> Unit Under Test: YSI ProDSS,4M with Flow Cell } <br /> Asset No.: FA02578 Technician Initials: <br /> Serial No: 16C103916 <br /> TEST Specification Resul <br /> Standard Calibration Pass/Fail <br /> TEST STANDARDS USED; <br /> DESCRIPTION LOT NO./EXPIRATION DATE QUANTITY <br /> 7000 uS Conductivity LT#8GG174 exp 7/31/19 1 <br /> 100%Air Saturated Water in 1 <br /> Bubbler <br /> Zobell Solution,ORP Standard Lot#C801980 Exp:9/6/18 1 <br /> Buffer Solution, pH 10.00(Coded Lot#8GF147 Exp:06/30/19 1 <br /> Blue) <br /> Buffer Solution, pH 7.00(Coded Lot#8GF622 Exp:6/30/19 1 <br /> Yellow) <br /> Buffer Solution, pH 4.00(Coded Lot#7gd343 Exp:04/30/19 1 <br /> Red) <br /> 100 NTU YSI AMCO Turbidity Lot#18168961 EXP.6/18/19 1 <br /> Standard <br /> Turbidity Free Water 1 <br /> TEST EQUIPMENT USED: <br /> DESCRIPTION ASSET N0. SERIAL N0. DATE OF DATE CAL <br /> LAST CAL DUE <br /> Test Equipment and standards are traceable to National standards. <br /> 1 Eco-rental Solutions 75 Rockwood St.Rochester,NY 14610 1-855-ECO-RENT www.eco-rentalsolutions.com <br />