10000 PPM MERCURY ICP STD IN 10 Percent HNO3 Hg in 2 Percent HNO3 10 ug/ml size:500 ML 00% ELEMENTAL IMPURITIES AS REPORTED

00% ELEMENTAL IMPURITIES AS REPORTED ALKALIES AND ALKALINE EARTHS 0

0 % COLOR (APHA) 10 SUBSTANCES REDUCING PERMANGANATE TO PASS TEST TO PASS TEST CARBON DIOXIDE (CO[@2@]) 20 ppm CHLORIDE (Cl) 500 ppb PHOSPHATE (PO[@4@]) 500 ppb TOTAL SULFUR (as SO[@4@]) 1 ppm ARSENIC AND ANTIMONY 50 ppb Aluminum (Al) 300 ppb BORON (B) 100 ppb CALCIUM (Ca) 300 ppb CHROMIUM (Cr) 200 ppb COPPER (Cu) 100 ppb GOLD (Au) 300 ppb IRON (Fe) 100 ppb LEAD (Pb) 200 ppb MAGNESIUM (Mg) 300 ppb MANGANESE (Mn) 200 ppb NICKEL (Ni) 100 ppb POTASSIUM (K) 300 ppb SODIUM (Na) 300 ppb TIN (Sn) 200 ppb TITANIUM (Ti) 300 ppb ZINC (Zn) 300 ppb PARTICLE COUNT (>/=1

Test Specification Min Max ASSAY (KBRO[@3@]) 99

Test Specification Min Max ABSORPTION MAX 514 (395) nm 514 (395) nm RETEST DATE

10000 PPM MERCURY ICP STD IN 10 Percent HNO3 Hg in 2 Percent HNO3 10 ug/ml size:500 ML 00% ELEMENTAL IMPURITIES AS REPORTED