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 Zinc Base Zinc Alloy ZnAlCu Chips   Al Cd Cu Fe Mg Mn Ni Pb Sn Others/Set Only Size Type Alloy  071-NZA1C % 28.7 0.00098 1.51 0.046 0.02     0.003 0.0069   80g RM   071-NZA2C % 23.81 0.0047 3 0.021 0.029     0.0076 0.0045   80g RM   071-NZA3C % 25.99 0.0064 2 0.066 0.0049     0.0045 0.0034   80g RM   071-NZA4C % 26.65 0.0029 2.45 0.027 0.0106     0.0101 0.0087   80g RM   071-NZA5C % 10.85 0.0095 1.04 (0.016) 0.021     0.0012 0.0017   80g RM   071-NZA6C % 7.54 0.0147 3.17 (0.0105) 0.00037     0.0809 0.0051   80g RM   071-NZA7C % 13.17 0.0002 0.212 (0.016) 0.052     0.0136 0.0116  /Y 30x35x45mm CRM   202-HS55701-1 % 4.72 0.00081 0.165   0.0224     0.0026 0.00058  /Y 30x35x45mm CRM   202-HS55701-2 % 3.92 0.0014 0.256   0.159     0.0032 0.00104  /Y 30x35x45mm CRM   202-HS55701-3 % 3.91 0.0031 0.412   0.075     0.0057 0.0021  /Y 30x35x45mm CRM   202-HS55701-4 % 2.92 0.0072 0.773   0.0368     0.012 0.004  /Y 30x35x45mm CRM   202-HS55701-5 % 2.64 0.0138 1.37   0.0085     0.0235 0.0077   100g CRM  Zinc Base Zinc Alloy ZnAl Chips   Al Cd Cu Fe Mg Pb Sn Others/Set Only Size Type Alloy  221-GDD % 2.92 0.0025 0.143 0.0082 0.018 0.0068 0.0011   44x44x19mm CRM Cast  331-625 % 3.06 0.0007 0.0128 0.034 0.036 0.07 0.031 0.0184 0.0014 0.017 0.0006   44x44x19mm CRM Cast  331-626 % 3.56 0.0016 0.0395 0.056 0.103 0.02 0.048 0.047 0.0022 0.042 0.0012   44x44x19mm CRM Cast  331-627 % 3.88 0.0051 0.0038 0.132 0.023 0.03 0.014 0.0029 0.0082 0.021 0.0042   44x44x19mm CRM Cast Zinc Base Zinc Alloy ZnAlCu Block   Al Cd Cr Cu Fe Mg Mn Ni Pb Si Sn Others/Set Only Size Type Alloy  331-628 % 4.59 0.004 0.0087 0.611 0.066 0.0094 0.0091 0.03 0.0045 0.008 0.0017   44x44x19mm CRM Cast  331-629 % 5.15 0.0155 0.0008 1.5 0.017 0.094 0.0017 0.0075 0.0135 0.078 0.012   44x44x19mm CRM Cast  331-630 % 4.3 0.0048 0.0031 0.976 0.023 0.03 0.0106 0.0027 0.0083 0.022 0.004   150g CRM   331-94C % 4.13 0.002   1.01 0.018 0.042 0.014 0.006 0.006   0.006   150g CRM