National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
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Page vi
... Values for 10 Elements in the Eight NBS White Cast Iron Standards 16 5 . Typical Homogeneity Test Data : Manganese , Nickel , and Molybdenum in Brake Drum Standard , NBS No. 1179 , by X - Ray Determinations 20 FIGURE NO . 1 . LIST OF ...
... Values for 10 Elements in the Eight NBS White Cast Iron Standards 16 5 . Typical Homogeneity Test Data : Manganese , Nickel , and Molybdenum in Brake Drum Standard , NBS No. 1179 , by X - Ray Determinations 20 FIGURE NO . 1 . LIST OF ...
Page 2
... values assigned to them , but also extreme caution must be exercised in matching the standards and the unknown samples with respect to all variables such as size , shape , composition , and metallurgical condition . The acute need by ...
... values assigned to them , but also extreme caution must be exercised in matching the standards and the unknown samples with respect to all variables such as size , shape , composition , and metallurgical condition . The acute need by ...
Page 15
... : Stir in ladle Time 10:59 AM . Mold Water on : Sample : Two specimens Pour : Time : 11:00 AM Remarks No apparent spattering of additions . 535 of 536 casting blocks filled . Table 4. Recovery Values for 10 Elements in the Eight 15.
... : Stir in ladle Time 10:59 AM . Mold Water on : Sample : Two specimens Pour : Time : 11:00 AM Remarks No apparent spattering of additions . 535 of 536 casting blocks filled . Table 4. Recovery Values for 10 Elements in the Eight 15.
Page 16
Table 4. Recovery Values for 10 Elements in the Eight NBS White Cast Iron Standards Average Recovery Values Concentration Element Range % Expected Obtained % % C 2.0 to 4.0 90 88 Mn 0.3 to 1.5 95 95 P .05 to 0.8 100 99 S .03 to .2 80 68 ...
Table 4. Recovery Values for 10 Elements in the Eight NBS White Cast Iron Standards Average Recovery Values Concentration Element Range % Expected Obtained % % C 2.0 to 4.0 90 88 Mn 0.3 to 1.5 95 95 P .05 to 0.8 100 99 S .03 to .2 80 68 ...
Page 19
... values on which the average is based . Providing that the analytical method of testing provides high precision , such as shown for the " within plate " testing for molybdenum , and depending on the number of replications , it is ...
... values on which the average is based . Providing that the analytical method of testing provides high precision , such as shown for the " within plate " testing for molybdenum , and depending on the number of replications , it is ...
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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