National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
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Page 16
... samples in size and shape . One of these samples was fractured and examined rapidly before casting the main heat to determine whether the white iron structure was obtained throughout the casting thickness . Had the test sample for any ...
... samples in size and shape . One of these samples was fractured and examined rapidly before casting the main heat to determine whether the white iron structure was obtained throughout the casting thickness . Had the test sample for any ...
Page 17
... sample which had been fractured was retained at NBS for preliminary analysis ; the second sample was sent to a cooperator for preliminary analysis and for application evaluation by comparison with their analyzed spectrochemical * cast ...
... sample which had been fractured was retained at NBS for preliminary analysis ; the second sample was sent to a cooperator for preliminary analysis and for application evaluation by comparison with their analyzed spectrochemical * cast ...
Page 18
... samples from each of the eight prepared white irons showed near the chill cast surface a columnar type of structure which extended upward approximately one - half the sample thickness ; above this the structure consisted of randomly ...
... samples from each of the eight prepared white irons showed near the chill cast surface a columnar type of structure which extended upward approximately one - half the sample thickness ; above this the structure consisted of randomly ...
Page 21
... SAMPLE IDENTIFICATION Since only half of the sample was found of suitable homogeneity , it was important that positive identification of the certified portion be made known . Figure 2 shows a schematic diagram of the NBS white cast iron ...
... SAMPLE IDENTIFICATION Since only half of the sample was found of suitable homogeneity , it was important that positive identification of the certified portion be made known . Figure 2 shows a schematic diagram of the NBS white cast iron ...
Page 22
... samples . The samples were cast with a taper to the sides . This offers positive and permanent identification of the ... sample as received . Only this portion was analyzed in the cooperative program for certification . Because of the ...
... samples . The samples were cast with a taper to the sides . This offers positive and permanent identification of the ... sample as received . Only this portion was analyzed in the cooperative program for certification . Because of the ...
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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