National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
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Page 9
... copper plate ( Watertown Arsenal ) . Although none of these were entirely successful , the results of studies at NBS on the cast slabs appeared promising ; it was determined that ( 1 ) a suitable depth of chill for standards could be ...
... copper plate ( Watertown Arsenal ) . Although none of these were entirely successful , the results of studies at NBS on the cast slabs appeared promising ; it was determined that ( 1 ) a suitable depth of chill for standards could be ...
Page 10
... copper plate , 1 - in . thick . The copper plate was made from oxygen - free , high conductivity ( OFHC ) copper . The bolts , 1 in . in diameter , also were made of OFHC copper and were threaded to extend into the copper plate about ...
... copper plate , 1 - in . thick . The copper plate was made from oxygen - free , high conductivity ( OFHC ) copper . The bolts , 1 in . in diameter , also were made of OFHC copper and were threaded to extend into the copper plate about ...
Page 11
... copper plate consistent with high heat transfer and least moisture difficulties was accomplished by dressing the cast- ing surface with a very thin layer of colloidal graphite with alcohol as the carrier . The casting face was flame ...
... copper plate consistent with high heat transfer and least moisture difficulties was accomplished by dressing the cast- ing surface with a very thin layer of colloidal graphite with alcohol as the carrier . The casting face was flame ...
Page 29
... copper plate . After preparing a second mold assembly , which required less than one - half hour , the holding furnace was brought to temperature , identical quantities of the volatile elements added , and the second gang casting ...
... copper plate . After preparing a second mold assembly , which required less than one - half hour , the holding furnace was brought to temperature , identical quantities of the volatile elements added , and the second gang casting ...
Page 35
... Copper - Base Spectrochemical Standards Robert E. Michaelis , LeRoy L. Wyman , and Richard Flitsch Institute for Materials Research National Bureau of Standards Washington , D.C. DEPARTMENT * NATIONAL OF COMMERCE BUREAU OF * STANDARDS ...
... Copper - Base Spectrochemical Standards Robert E. Michaelis , LeRoy L. Wyman , and Richard Flitsch Institute for Materials Research National Bureau of Standards Washington , D.C. DEPARTMENT * NATIONAL OF COMMERCE BUREAU OF * STANDARDS ...
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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