National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
From inside the book
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Page 3
... portions can be determined and discarded prior to working to the final size . Equally significant is the fact that the final homogeneity in the wrought standard can be improved markedly over that of the selected material by appropriate ...
... portions can be determined and discarded prior to working to the final size . Equally significant is the fact that the final homogeneity in the wrought standard can be improved markedly over that of the selected material by appropriate ...
Page 5
... portion of the test samples either by using a rapid chill - casting procedure or by making certain additions known to promote whiteness , such as tellurium or bismuth , or by a combination of both , to the test ladle or mold . ( 4 ) ...
... portion of the test samples either by using a rapid chill - casting procedure or by making certain additions known to promote whiteness , such as tellurium or bismuth , or by a combination of both , to the test ladle or mold . ( 4 ) ...
Page 21
... portion be made known . Figure 2 shows a schematic diagram of the NBS white cast iron spectrometric samples . As can be seen , the samples have been numbered on the face opposite to the chill cast surface . SCHEMATIC DIAGRAM OF NBS ...
... portion be made known . Figure 2 shows a schematic diagram of the NBS white cast iron spectrometric samples . As can be seen , the samples have been numbered on the face opposite to the chill cast surface . SCHEMATIC DIAGRAM OF NBS ...
Page 22
... PORTION APPROX . 16 11 ゲ 32 MACHINE GROUND FROM EACH OF FOUR SIDES Figure 2. Schematic diagram of NBS white cast ... portion of each sample by noting that the test face always will be the largest surface . The exact certified portion is ...
... PORTION APPROX . 16 11 ゲ 32 MACHINE GROUND FROM EACH OF FOUR SIDES Figure 2. Schematic diagram of NBS white cast ... portion of each sample by noting that the test face always will be the largest surface . The exact certified portion is ...
Page 24
... portion of representative samples , in an iron mortar with an iron pestle . Chemical analyses were made at NBS and in five cooperating laboratories * . Provisional Certificates of Analyses were prepared in April , 1961 and the samples ...
... portion of representative samples , in an iron mortar with an iron pestle . Chemical analyses were made at NBS and in five cooperating laboratories * . Provisional Certificates of Analyses were prepared in April , 1961 and the samples ...
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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