Nitrogen Standard Solution 1 ml = 1 mg N size:500 ML Test Specification Min Max COLOR

Test Specification Min Max COLOR (APHA) 10 CHLORIDE (Cl) 100 ppb PHOSPHATE (PO[@4@]) 100 ppb SULFATE 200 ppb ALUMINUM 20 ppt ANTIMONY (Sb) 10 ppt ARSENIC (As) 10 ppt BARIUM (Ba) 10 ppt BERYLLIUM (BE) 10 ppt BISMUTH 10 ppt BORON 50 ppt CADMIUM (Cd) 10 ppt CALCIUM (Ca) 20 ppt CERIUM 10 ppt CESIUM 10 ppt CHROMIUM (Cr) 10 ppt COBALT (Co) 10 ppt COPPER (Cu) 10 ppt DYSPROSIUM 1 ppt ERBIUM 1 ppt EUROPIUM 1 ppt GADOLINIUM 1 ppt GALLIUM (Ga) 10 ppt GERMANIUM 10 ppt GOLD 10 ppt HAFNIUM 1 ppt HOLMIUM 1 ppt INDIUM 1 ppt IRON (Fe) 20 ppt LANTHANUM 1 ppt LEAD (Pb) 10 ppt LITHIUM 10 ppt LUTETIUM 1 ppt MAGNESIUM (Mg) 10 ppt MANGANESE (Mn) 10 ppt MERCURY (Hg) 20 ppt MOLYBDENUM (Mo) 10 ppt NEODYMIUM 1 ppt NICKEL (Ni) 10 ppt NIOBIUM 10 ppt PALLADIUM 10 ppt PLATINUM 10 ppt POTASSIUM (K) 10 ppt PRASEODYMIUM 10 ppt RHENIUM 10 ppt RHODIUM (Rh) 10 ppt RUBIDIUM (Rb) 10 ppt RUTHENIUM 10 ppt SAMARIUM 10 ppt SCANDIUM 10 ppt SELENIUM (Se) 50 ppt SILVER (Ag) 10 ppt SODIUM (Na) 50 ppt STRONTIUM (Sr) 10 ppt TANTALUM 10 ppt TELLURIUM 1 ppt TERBIUM 10 ppt THALLIUM (Tl) 10 ppt THORIUM 1 ppt THULIUM 10 ppt TIN (Sn) 10 ppt TITANIUM (Ti) 10 ppt TUNGSTEN 10 ppt URANIUM 1 ppt VANADIUM (V) 10 ppt YTTERBIUM 10 ppt YTTRIUM 1 ppt ZINC (Zn) 10 ppt ZIRCONIUM (ZR) 10 ppt EXPIRATION DATE

00% ON 80 MESH 1

Test Specification Min Max ASSAY (KF) 99

01% WATER-INSOLUBLES 0

Nitrogen Standard Solution 1 ml = 1 mg N size:500 ML Test Specification Min Max COLORTest Specification Min Max ACTUAL CONCENTRATION AS REPORTED AS REPORTED APPEARANCE EXPIRATION DATE MANUFACTURE DATE