National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
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Page 16
... error in the assignment of the vanadium content in the ferrovanadium used . 7. PRELIMINARY ANALYSIS Prior to pouring the molten metal into the mold , two ladle samples to serve for preliminary analysis were obtained by casting into ...
... error in the assignment of the vanadium content in the ferrovanadium used . 7. PRELIMINARY ANALYSIS Prior to pouring the molten metal into the mold , two ladle samples to serve for preliminary analysis were obtained by casting into ...
Page 6
... error was about 0.45 w percent . Table 2 shows the expected concentration ranges and the observed ranges after the edge affected points have been dropped . TABLE 2. Nickel concentration in cross sections of NBS - 461 steel * 1 . 2 . 3 ...
... error was about 0.45 w percent . Table 2 shows the expected concentration ranges and the observed ranges after the edge affected points have been dropped . TABLE 2. Nickel concentration in cross sections of NBS - 461 steel * 1 . 2 . 3 ...
Page 17
... error is 20 % A - 7 Probability for One Inclusion to Occur in a Random Fifty Micron Diameter Sphere of NBS 461 Steel The volume of the fifty micron sphere is 65,450 cubic microns ; there will be 15,279 such spheres per cubic millimeter ...
... error is 20 % A - 7 Probability for One Inclusion to Occur in a Random Fifty Micron Diameter Sphere of NBS 461 Steel The volume of the fifty micron sphere is 65,450 cubic microns ; there will be 15,279 such spheres per cubic millimeter ...
Page 1
... error . Typical coefficients of variation obtained for individual results in a group of 8 runs were 0.3 % for copper and 0.4 % for zinc . The agree- ment between chemical and x - ray results was within 0.3 % of the amount present for ...
... error . Typical coefficients of variation obtained for individual results in a group of 8 runs were 0.3 % for copper and 0.4 % for zinc . The agree- ment between chemical and x - ray results was within 0.3 % of the amount present for ...
Page 2
... error : 1. When the solution cell includes a thin film , the films of the two cells may distend by different amounts thus changing the surface being irradiated . 2. The acid concentration may differ in the two cells , producing ...
... error : 1. When the solution cell includes a thin film , the films of the two cells may distend by different amounts thus changing the surface being irradiated . 2. The acid concentration may differ in the two cells , producing ...
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Common terms and phrases
acid solution add 10 ml aliquot alloy ammonium Analytical Analytical curve assay average beaker boil Bureau of Standards butyl acetate calibration carbon Cartridge Brass cents chemical shift chill-cast chromium composition Cool copper Copper-Base Spectrochemical Standards COPPER-BASE STANDARDS determination dilute Dissolve electrolyte electron probe electron probe microanalysis elements Erlenmeyer flask ferrite Figure filter free-cutting brass fumes glass grain heat homogeneity inclusions Institute for Materials Laboratory Low-Alloy Steel manganese Materials Research mean free path measurement metal method microns ml of H2SO4 ml of HNO3 ml of water Mossbauer National Bureau NBS Misc NBS Miscellaneous Publication NBS Spectrometric nickel nitric acid obtained oxide paper pearlite percent photometric precipitate procedure Publ Reagents sodium sodium nitroprusside spectrometer standard deviation Standard Reference Materials sulfate sulfuric acid Technology titration Transfer uranium Vacuum fusion values vanadium viscosity volumetric flask wash weight white cast iron x-ray zinc