Metal - Discs Iron Base Pure Iron Binary Steel Cast Iron Aluminium Base Alumina Pure Aluminium Aluminium Alloy Cobalt Base Cobalt Alloy Copper Base Pure Copper Copper Alloy Magnesium Base Pure Magnesium Magnesium Alloy Magnesium Nickel Base Pure Nickel Nickel Alloy Lead Base Pure Lead Lead Alloy Tin Base Pure Tin Tin Alloy Titanium Base Pure Titanium Titanium Alloy C, S, N, O, H only Zinc Base Pure Zinc Zinc Alloy Gold Base Gold Alloy Pure Gold Silver Base Pure Silver Silver Alloy Cadmium Base Pure Cadmium Molybdenum Base Pure Molybdenum Zirconium Base Pure Zirconium Zirconium Alloy Metal - Chips Iron Base Binary Pure Iron Cast Iron Steel Aluminium Base Alumina Pure Aluminium Aluminium Alloy Copper Base Pure Copper Copper Alloy Lead Base Lead Alloy Pure Lead Cobalt Base Cobalt Alloy Magnesium Base Pure Magnesium Magnesium Alloy Nickel Base Pure Nickel Nickel Alloy Silver Base Pure Silver Silver Alloy Tin Base Pure Tin Tin Alloy Titanium Base Pure Titanium Titanium Alloy C, S, N, O, H only Zinc Base Pure Zinc Zinc Alloy Chromium Base Pure Chromium Molybdenum Base Pure Molybdenum Zirconium Base Pure Zirconium Zirconium Alloy Ferro-Alloys Hard Metals Carbide Nitride Ferro Alloys Ca RE Mg RE B Mn CaSi Mo Cr MgSi Nb Ti V W Zr P Si Si Ca SiCr SiMn Steel Geological Mineral/Rock/Ore Iron/Steel Rock Industrial Mineral Ore Rock/Siliceous Minerals Steel Soil/Sediment Soil Sediment Si Refractory Refractory/Ceramic Refractory Burnt Refractory Brick Clay Alumina Silica Ceramic Others Glass Industrial By-Products Industrial Process/Byproducts Paint Aluminium Catalyst Cement Copper Flux Iron/Steel Titanium Titanium Dioxide Polymeric Material Various Oil & Coal Coal/Coke/Pitch Other Fuel Carbon Coal Coke Pitch Sediment Mineral Oil Diesel Oil Fuel Oil Gas Oil Gasoline Jet Fuel Kerosene Kerosene/Diesel Kerosine/Diesel Paraffin Oil Reference Fuel Residual Fuel Oil Residual Oil Crude Oil Lube Oil Residual Oil Extreme Pressure Oil Naphtha V.T.B. Food & Agriculture Agriculture/Food Marine Agriculture Food Environment & Health Environment/Health Environment Ash/Dust Atmospheric Particulates Health Paint Water Physical Testing Physical Testing Film Thickness Biological Fluids Biological Fluid Trace Elements Pure Chemicals High Purity Chemicals Elemental Analysis Organic Stochiometry Stochiometry

Solids and Matrix Based Reference Materials Lead Base Pure Lead Pure Block   Ag As Bi Cd Cu Ni Sb Se Sn Te Tl Zn Others/Set Only Size Type Alloy  191-286A ppm 0.015 <0.002 21.5 0.125 1.49 0.041 0.1 <0.05 <0.05 <0.1 2.5 <0.1   150g CRM   191-286B ppm 0.015 (<0) 21.5 0.125 1.49 0.041 0.1 (<0.00001) (<0.00001) (<0.1) 2.5 <0.01   60x60x12mm CRM   191-287A ppm 15.2 <0.003 67.3 0.36 0.98 0.024 0.04 <0.05 <0.05 <0.2 0.73 <0.1   150g CRM   191-287B ppm 15.2 (0) 67.3 0.36 0.98 0.024 0.04 (0.00001) (0.00001) (0.00002) 0.73 0.1   60x60x12mm CRM   191-288A ppm 30.5 55.7 215.8 33.3 19.3 4.57 32.5 0.2 30.6 32.8 2.3 8.2   150g CRM   191-288B ppm 30.5 55.7 215.8 33.3   4.57 32.5 0.2 32.8   2.3 8.2   Ø50x16mm CRM Chill Cast High Purity Lead Lead Base Pure Lead High Purity Disc   Ag Al As Bi Ca Cd Co Cu Fe Mn Ni Sb Sn Te Zn Others/Set Only Size Type Alloy  331-C2418 % 0.0007 (<0.0001) (<0.0001) (<0.0005) <0.0005 0.0003 (<0.0005) (<0.0001) (<0.0005) (<0.0005) (<0.0005) (<0.0001) (<0.0005) (<0.0005) (<0.0005)   50x50x20mm RM Chill Cast Pure Lead Lead Base Pure Lead Pure Block   Ag As Bi Cd Cu Ni Sb Se Sn Te Tl Zn Others/Set Only Size Type Alloy  401-L01.1/1 ppm 24 6.7 199 1.6 9.3 <0.5 2   5.2 <2   7.7   50x50x20mm RM Chill Cast Pure Lead  401-L01.2/1 ppm 1.3 0.95 101 22.6 18 8 3   <0.7 7.4   4   50x50x20mm RM Chill Cast Pure Lead  401-L01.3/1 ppm 52 1.3 6 6.2 24.3 5.1 2.7   <0.7 6.1   4.5   50x50x20mm RM Chill Cast Pure Lead  401-L01.4/1 ppm 88.5 2.4 265 15 1 2.6 5.7   1.9 7.9   2.2   50x50x20mm RM Chill Cast Pure Lead