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• lk <br />Reply to <br />COMMERCIAL TESTING & ENGINEERING CO. <br />GENERAL OFFICES: 226 NORTH LA SALLE STREET. CHICAGO. ILLINOIS 60401 . AREA CODE 010 726.6434 <br />INSTRUMENTAL ANALYSIS DIVISION. 490 ORCHARD STREET, GOLDEN, COLORADO 80401, PHONE: 000.776.9521 <br />To: Mr. Jack Gillespie ��� <br />C F & I Steel Corp. <br />P.O. Box 316 """ Date: April 24, 1979 <br />Pueblo, CO 81002 <br />Analyst: J. Oldham <br />P. O. No.: M25144 <br />Sample No.: Purgatoire R Below Max 10:55 4/19/79 IAD No.: 97-C543-032-07 <br />CONCENTRATION IN pg/ml <br />ELEMENT CONC. ELEMENT CONC. ELEMENT CONC. ELEMENT CONC. <br />Uranium <0.006 Terbium Ruthenium Vanadium 0.03 <br />Thorium <0.008 Gadolinium Molybdenum 0.005 Titanium 0.8 <br />Bismuth Europium Niobium <0.005 Scandium 0.002 <br />Lead 0.02 Samarium Zirconium 0.01 Calcium MC <br />Thallium Neodymium Yttrium 0.003 Potassium MC <br />Mercury 'NR Praseodymium 0.001 Strontium 0.1 Chlorine 0.1 <br />• Gold Cerium 0.01 Rubidium 0.02 Sulfur 2 <br />Platinum Lanthanum 0.009 Bromine 0.008 Phosphorus 0.2 <br />Iridium Barium 0.4 Selenium Silicon MC <br />Osmium Cesium 0.1 Arsenic <0.002 Aluminum >0.9 <br />Rhenium Iodine 0.001 Germanium Magnesium 4 <br />iungscen Tellurium Gallium 0.003 Sodium >2 <br />Tantalum Antimony <0.002 Zinc 0.006 Fluorine =0.3 <br />Hafnium Tin 0.004 Copper 0.01 Oxygen NR <br />Lutecium Indium STD Nickel 0.004 Nitrogen NR <br />Ytterbium Cadmium Cobalt <0.001 Carbon NR <br />Thulium Silver Iron 5 Boron 0.002 <br />Erbium Palladium Manganese 0.1 Beryllium <br />Holmium Rhodium Chromium 0.008 Lithium 0.003 <br />• Dysprosium Hydrogen NR <br />STD — Internal Standard <br />NR el Not Reported <br />All elements not D.DDpg/Ml Approved: <br />MC — Major Component <br />MG >1D0 u9/ml <br />INT — Interference W 4� <br />