National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
From inside the book
Results 1-5 of 36
Page 1
... directed not only to techniques for providing standards with high meas- urement excellence , but also to procedures for increasing the applicability of existing and future standards . The purpose of this report is to present the results ...
... directed not only to techniques for providing standards with high meas- urement excellence , but also to procedures for increasing the applicability of existing and future standards . The purpose of this report is to present the results ...
Page 14
... directed in paragraphs ( d ) and ( e ) . ( c ) Dissolve approximately the same weight of iron as the weight of the sample in 30 ml of the mixed acids . Transfer by pipet a portion of the manganese solution . ( 1 ml = 0.0008 g Mn ) to ...
... directed in paragraphs ( d ) and ( e ) . ( c ) Dissolve approximately the same weight of iron as the weight of the sample in 30 ml of the mixed acids . Transfer by pipet a portion of the manganese solution . ( 1 ml = 0.0008 g Mn ) to ...
Page 19
... directed in ( b ) , ( c ) , and ( d ) of section above . ( b ) Using the value obtained , read from the calibration curve the number of milligrams of phosphorus present in 50 ml of the final solution . Blank Determine the blank ...
... directed in ( b ) , ( c ) , and ( d ) of section above . ( b ) Using the value obtained , read from the calibration curve the number of milligrams of phosphorus present in 50 ml of the final solution . Blank Determine the blank ...
Page 29
... directed in paragraph ( b ) . Filter immediately , using a 9 - cm fine paper and wash as directed in paragraph ( c ) . ( e ) Transfer the paper to the reserved platinum crucible and heat carefully at 600 ° C until the carbon is removed ...
... directed in paragraph ( b ) . Filter immediately , using a 9 - cm fine paper and wash as directed in paragraph ( c ) . ( e ) Transfer the paper to the reserved platinum crucible and heat carefully at 600 ° C until the carbon is removed ...
Page 33
... directed in paragraphs ( a ) and ( b ) above . ( Note ) For samples containing more than 40 μg Cu , trans- fer to a 100 ml volumetric flask , add 5 ml H2SO ( 1 + 1 ) and dilute to the mark with water . Transfer an aliquot , containing ...
... directed in paragraphs ( a ) and ( b ) above . ( Note ) For samples containing more than 40 μg Cu , trans- fer to a 100 ml volumetric flask , add 5 ml H2SO ( 1 + 1 ) and dilute to the mark with water . Transfer an aliquot , containing ...
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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