Ammonium Hydroxide TraceGrade size:4 LT Test Specification Min Max ASSAY

Test Specification Min Max ASSAY (w/w) 93 - 98% 93 - 98% ALUMINUM 50 ppt ANTIMONY (Sb) 50 ppt ARSENIC (As) 500 ppt BARIUM (Ba) 10 ppt BERYLLIUM (BE) 10 ppt BISMUTH 10 ppt CADMIUM (Cd) 10 ppt CALCIUM (Ca) 100 ppt CERIUM 10 ppt CESIUM 10 ppt CHROMIUM (Cr) 10 ppt COBALT (Co) 10 ppt COPPER (Cu) 10 ppt DYSPROSIUM 10 ppt ERBIUM 10 ppt EUROPIUM 10 ppt GADOLINIUM 10 ppt GALLIUM (Ga) 10 ppt GERMANIUM 100 ppt HAFNIUM 10 ppt HOLMIUM 10 ppt INDIUM 10 ppt IRON (Fe) 50 ppt LANTHANUM 10 ppt LEAD (Pb) 10 ppt LITHIUM 10 ppt LUTETIUM 10 ppt MAGNESIUM (Mg) 50 ppt MANGANESE (Mn) 10 ppt MERCURY (Hg) 100 ppt MOLYBDENUM (Mo) 10 ppt NEODYMIUM 10 ppt NICKEL (Ni) 50 ppt NIOBIUM 10 ppt PALLADIUM AS REPORTED AS REPORTED PLATINUM AS REPORTED AS REPORTED POTASSIUM (K) 50 ppt PRASEODYMIUM 10 ppt RHODIUM (Rh) 50 ppt RUBIDIUM (Rb) 10 ppt SAMARIUM 10 ppt SCANDIUM 10 ppt SELENIUM (Se) 500 ppt SILVER (Ag) 50 ppt SODIUM (Na) 50 ppt STRONTIUM (Sr) 10 ppt TANTALUM AS REPORTED AS REPORTED TELLURIUM 100 ppt TERBIUM 10 ppt THALLIUM (Tl) 10 ppt THORIUM 10 ppt THULIUM 10 ppt TIN (Sn) 50 ppt TITANIUM (Ti) 50 ppt TUNGSTEN 10 ppt URANIUM 10 ppt VANADIUM (V) 10 ppt YTTERBIUM 10 ppt YTTRIUM 10 ppt ZINC (Zn) 50 ppt ZIRCONIUM (ZR) 10 ppt EXPIRATION DATE

Test Specification Min Max ASSAY 99% 99% VISUAL TRANSITION INTERVALS pH 6

Test Specification Min Max ASSAY (K[@2@]SO[@4@]) 99 100

00% IRON 0

Test Specification Min Max ALUMINUM 500 ppm VANADIUM 250 ppm ARSENIC (As) 100 ppm BERYLLIUM (BE) 100 ppm CHROMIUM (Cr) 100 ppm COBALT (Co) 100 ppm COPPER (Cu) 100 ppm IRON (Fe) 100 ppm LEAD (Pb) 100 ppm MANGANESE (Mn) 100 ppm NICKEL (Ni) 100 ppm ZINC (Zn) 100 ppm CADMIUM (Cd) 25 ppm SELENIUM (Se) 25 ppm MERCURY (Hg) 5 ppm EXPIRATION DATE

Ammonium Hydroxide TraceGrade size:4 LT Test Specification Min Max ASSAYTest Specification Min Max ASSAY (w w) 20 22% 20 22% COLOR (APHA) 10 CHLORIDE (Cl) 0. 5 ppm PHOSPHATE (PO[@4@]) 0. 5 ppm SULFATE 1 ppm ALUMINUM 1 ppb ANTIMONY (Sb) 1 ppb ARSENIC (As) 1 ppb BARIUM (Ba) 1 ppb BERYLLIUM (BE) 1 ppb BISMUTH 1 ppb CADMIUM (Cd) 1 ppb CALCIUM (Ca) 1 ppb CERIUM 0. 5 ppb CESIUM 0. 5 ppb CHROMIUM (Cr) 1 ppb COBALT (Co) 1 ppb COPPER (Cu) 1 ppb DYSPROSIUM 0. 5 ppb ERBIUM 0. 5 ppb EUROPIUM 0. 5 ppb GADOLINIUM 0. 5 ppb GALLIUM (Ga)