Standard Reference Materials (SRMs) and Reference Materials (RMs) have been developed for quantitative microanalysis with the scanning electron microscope (SEM), the electron probe microanalyzer (EPMA), secondary ion mass spectrometry (SIMS), Auger analysis, etc. These standards include binary or ternary metal alloys, synthetic multielement glasses, thin films, and glass microspheres.
Certification of an SRM for microanalysis requires microheterogeneity testing, quantitative analysis of the bulk material, and statistical evaluation of the data to determine the certified concentrations and uncertainties. Tables and information on standards for microanalysis that are available or were available in the past are listed below. References describing the certification process and links to the certificates for these SRMs are in the tables.
SRMs for Microanalysis - Presently Available
| SRM # | NAME | FORM | NOMINAL COMPOSITION (% Mass Fract.) |
| 480 | Tungsten20% Molybdenum | Wafer | W-78,Mo-22 |
| 481 | Gold-Silver Alloys | Six Wires | Au 100;80;60;40;20;0 Ag 0;20;40;60;80;100 |
| 482 | Gold-Copper Alloys | Six Wires | Au 100;80;60;40;20;0 Cu 0;20;40;60;80;100 |
| 664 | High-Carbon Steel | 3.2mm x 51mm rods | Steel with addition elements in minor and trace amounts |
| 1872 | Glasses for Microanalysis(K-453, K-491, K-968) | 3 Slices, approx.2 x 2 x 12 mm3 | Pb-GeO4 Matrix, K-453 no additions, 2 glasses contain 9-10 oxides in concs. less than 1.0 mass fraction |
| 1873 | Glasses for Microanalysis(K-458, K-489, K-963) | 3 Slices, approx.2 x 2 x 12 mm3 | Ba-Zn-SiO4 Matrix, K-458 no additions, 2 glasses contain 9-10 oxides in concs. less than 1.0 mass fraction |
| 2063a | Microanalysis Thin Film Mg-Si-Ca-Fe | Film on 3 mm Cu grid | K-411 glass (MgO,SiO2,CaO,FeO) thin film designed for Analytical Electron Microscopy determination of relative sensitivity factors |
| 2066 | K411 Glass Microspheres | 50 mg of 1 to 40 mm diameter spheres | K-411 glass (MgO,SiO2,CaO,FeO) used to prepare particle spheres |
SRMs and RMs for Microanalysis - Out of Stock
| SRM # | NAME | FORM | NOMINAL COMPOSITION (% Mass Fract.) |
| 4701 | Mineral Glasses for Microanalysis | Slices2 x 2x 12 mm3 |
Glass K-411, MgO,SiO2,CaO,FeO; Glass K-412, MgO,Al2O3SiO2,CaO,FeO |
| 4782 | Cartridge Brass | Cube and Cylinder | Cu-73, Zn-27 |
| 479a3 | Fe-Cr-Ni Alloy | Wafer | Fe-71,Cr-18,Ni-11 |
| 4834 | Iron - 3% Silicon | Small Sheet | FE-97, SI-3 |
| 6615 | ANSI 4340 Steel | 3.2mm x 51mm rods | Steel with the several additional elements/minor and trace amts |
| 6625 | ANSI 84B17 Steel | 3.2mm x 51mm rods | Steel with the several additional elements/minor and trace amts |
| 6635 | Cr-V Steel | 3.2mm x 51mm rods | Steel with the several additional elements/minor and trace amts |
| 18716 | Glasses for MicroanalysisK-456, K-493, K-523 | Slices2 x 2 x 12 mm3 | PbSiO4 Matrix, K-456 no additions, 2 glasses contain 9-10 oxides in concs. less than 1.0 mass fraction |
| 18746 | Glasses for MicroanalysisK-495, K-490, K-546 | Slices2 x 2 x 12 mm3 | Li-Al-B2O7 Matrix, K-495 no additions, 2 glasses contain 9-10 oxides in concs. less than 1.0 mass fraction |
| 18756 | Glasses for MicroanalysisK-496, K-497, K-1013 | Slices2 x 2 x 12 mm3 | Al-Mg-P2O5 Matrix, K-496 no additions, 2 glasses contain 9-10 oxides in concs. less than 1.0 mass fraction |
|
Last Updated
March 5, 2002
|
Web Contact micro@nist.gov