National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
From inside the book
Results 1-5 of 100
Page 21
... percent for molybdenum , such a small difference If it is assumed that certification has little practicality . will be to the nearest 0.01 percent , the actual difference found of 0.0034 percent ( ± 0.0019 percent from the mean ) also ...
... percent for molybdenum , such a small difference If it is assumed that certification has little practicality . will be to the nearest 0.01 percent , the actual difference found of 0.0034 percent ( ± 0.0019 percent from the mean ) also ...
Page 25
... percent ; the other standards contain less than 0.01 percent ) . agreement for most was obtained . Current plans are to certify additional elements in these standards as well as in new cast iron standards . 12 . CONSISTENCY TESTING ...
... percent ; the other standards contain less than 0.01 percent ) . agreement for most was obtained . Current plans are to certify additional elements in these standards as well as in new cast iron standards . 12 . CONSISTENCY TESTING ...
Page 29
... percent of free graphite ; the other standards all were found to contain less than 0.01 percent . 14. ADDENDUM Two new white cast iron standards , a high- and a low- composition alloy , were melted and cast in February , 1964 . These ...
... percent of free graphite ; the other standards all were found to contain less than 0.01 percent . 14. ADDENDUM Two new white cast iron standards , a high- and a low- composition alloy , were melted and cast in February , 1964 . These ...
Page 19
... percent of the amount present is normally acceptable from the practical significance standpoint , with lead in free - cutting brass +5 percent of the amount present is deemed acceptable , but this in turn , limits the accuracy of ...
... percent of the amount present is normally acceptable from the practical significance standpoint , with lead in free - cutting brass +5 percent of the amount present is deemed acceptable , but this in turn , limits the accuracy of ...
Page 24
... Percent Cu 67.43 69.60 69.50 72.85 Zn 32.20 30.26 30.34 27.10 Pb 0.106 0.05 0.05 0.020 Fe .072 .037 .037 .011 Sn .055 .016 .016 .006 Ni .052 .013 .013 .005 Mn .003 ) e .006 006 .004 ) Р .01 .002 , 002 .006 Si 01 .005 .005 .002 Free ...
... Percent Cu 67.43 69.60 69.50 72.85 Zn 32.20 30.26 30.34 27.10 Pb 0.106 0.05 0.05 0.020 Fe .072 .037 .037 .011 Sn .055 .016 .016 .006 Ni .052 .013 .013 .005 Mn .003 ) e .006 006 .004 ) Р .01 .002 , 002 .006 Si 01 .005 .005 .002 Free ...
Other editions - View all
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