Annual Report 1957 National Bureau of Standards
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Annual Report 1957 National Bureau of Standards U. S. Department of Commerce UNITED STATES DEPARTMENT OF COMMERCE Sinclair Weeks, Secretary NATIONAL BUREAU OF STANDARDS A. V. Astin, Director 4 Annual Report 1957 National Bureau of Standards Issued for Fiscal Year 1957 Miscellaneous Publication 223 For sale by the Superintendent of Documents, U. S. Government Printing Office Washington 25, D. C. - Price 45 cents Contents Page 1. General Review 1 1.1. Introduction 1 1.2. Technical Activities 2 1.3. Administrative Activities ]] 1.4. Publications 12 2. Research and Development Program ]2 2.1. Electricity and Electronics 13 Fundamental electrical units 13, Electron devices 13, High- voltage measurements 13, Dielectric properties of polymers 14, Electronic reliability 14, Document-sensing devices 15, Tran- sistor wireless microphone 15, Free-floating automatic weather buoy 15, Reference electrode for fused salts 16. 2.2. Optics and Metrology 16 Standards of illumination 16, Light and color standards 17, Specification for screw threads 17, High -precision gage blocks 17, Structure of glasses 18, Measurements of flashing lights 20, Airplane instrument panel filters 20, Visual landing aids for aircraft 20. 2.3. Heat I 21 Temperature standards 21, High-temperature research 23, Thermodynamics 23, Low-temperature physics 25, Com- bustion 25. 2.4. Atomic and Radiation Physics 26 Radiation protection 26, Spectroscopic research 27, High- altitude observatory 28, Solid state physics 28, Electron physics tables 29, Scattering of low-energy electrons 29, Neutron penetration in water 30, Penetration of gamma radiation 30, Ionization chamber for calibrations 30, Ioniza- tion measurements 31, Low-energy X-rays 31, High-energy accelerator research 32, Photographic films for X-ray meas- urements 32. 2.5. Chemistry 33 Inorganic and analytical chemistry 33, Physical and electro-, chemistry 35, Organic chemistry 36, Air pollution 38. 2.6. Mechanics 38 Measurement of sound and vibration 38, Hygrometry 39, Pressure measurement 39, Mixing in bodies of water 39, Fluid slip at nonwettable surfaces 39, Stress-strain record- ers 40, Dynamic properties of materials 40, Density of tungsten wire 41, Jet engine controls 41, Aircraft fuel ac- cessories 41, Gas turbine radiation 42. 2.7. Organic and Fibrous Materials Glass transition temperatures of copolymers 42, Degradation of cellulose by ultraviolet light 43, Effects of high-energy radiation 43, Fracture of plastics 44, Smoothness of printing paper 45, Sewability of cotton thread 45, Fluorescence of human enamel and dentin 45, Improved material for treating teeth 46, Structural changes in rubber during vulcaniza- tion 46, Oil -extended rubber 46, Influence of temperature on chrome tanning 47, Heats of wetting 47, Mildew-proofing of leathers 47, Sedimentation equilibrium of flexible chain molecules 48, Effects of high rates of straining 49, Effects of molding pressure on reinforced plastics 49, Surface erosion of plastics 49, Gallium alloys 50, Color standards for dental materials 50, Crystal chemistry of mineralized tissue 50. 2.8. Metallurgy Equilibrium diagrams 51, Deformation of metals 51, Micro- scopic stresses in metals 52, Corrosion 53, Materials for ultraprecise gage blocks 53, High-strength alloys 54, Stain- less steels 55. 2.9. Mineral Products Spectra of calcium silicates and aluminates 56, Structure and ferroelectricity 57, Phase relations in system lime-alumina- water 57, Vaporization processes at high temperatures 58, Excess entropy of glass 58, High-temperature properties of silica 59, Properties of porcelain enamels 59, Thermochem- istry of cement compounds 60, Special optical glasses 61, Spalling of concrete at elevated temperatures 61, Standard X-ray diffraction patterns 61, Crystal structure of inorganic materials 62. 2.10. Building Technology Design stress in reinforced concrete 62, Cracks in reinforced concrete 63, Air cleaners for helicopters 63, Metering heat sink for refrigerated enclosures 63, Standards for built-up roofs 64, Asphalt roofing 64, Thermal insulation with reflective surfaces 64, Analyzer for transient heat flow 65, Mechanism of fire extinguishment 66. 2.11. Applied Mathematics Numerical analysis 67, Mathematical [tables 68, Digital com- putation 68, Statistical engineering 69, Mathematical phys- ics 70. 2.12. Data Processing Systems SEAC 71, Components and techniques 71, Computer circuit packaging 72, Magnetic tape devices for input -output 73, Pilot electronic data -processor 73, Advanced computer sys- tems 73, Transistor magnetic-core circuitry 73, Control systems and simulation 74, Data processing applications 75, Processing first-class mail 76. 2.13. Cryogenic Engineering Low-temperature properties of materials 77, Cryogenic proces- ses 79, Cryogenic equipment 79, Gas liquefaction 81. Page 2.14. Radio Propagation 82 Radio Propagation Physics 82 Participation in the International Geophysical Year 82, Origin of ionospheric fading 84, Nighttime ionospheric reflections 85, Radio noise from Jupiter 85, Oscillations in the earth's atmosphere 85. Radio Propagation Engineering 85 Low-frequency propagation 85, Worldwide radio systems engineering 85, Tropospheric forward scatter theory 86, Bending of radio waves 86, Radio studies of atmospheric turbulence 86, Tacan investigation 87. 2.15. Radio Standards 88 Attenuation 88, Field-strength, noise, and interference 88, Frequency 89, Impedance 90, Power 91, Voltage 92, Dielectric measurements 92, Magnetic materials 92, Micro- wave spectroscopy of gases 93, Millimeter waves 94. 2.16. Basic Instrumentation 94 Instrument reference service 95, Indexing system 96, Im- proved indexing systems 96, Surveys 96, Exploratory in- vestigations 96. 3. Calibration, Testing, and Standard Samples 96 3.1. Assistance in Establishing Standards Laboratories 97 3.2. New Calibration Facilities and Equipment 97 Electronic calibration center 97, Mobile cement testing labora- tory 98, Resistance thermometry 98, High-speed photoelectric spectrometers 99. 3.3. Services Discontinued 100 3.4. Services to the Public and Government 100 3.5. Standard Samples Program 103 4. Cooperative Activities 105 4.1. Federal Specifications 106 4.2. Methods of Test 106 4.3. Industry Specifications 107 4.4. Cooperative Research With Industry 108 4.5. Weights and Measures 110 Metering liquefied petroleum gas 111, The 42d National Con- ference 111. 4.6. Free-Radicals Research Program 112 4.7. Educational Program 112 4.8. International Cooperation 113 4.9. Other Cooperative Activities 114 Safety codes and building technology 114, Dental materials 115, Applied mathematics and data processing 116, Services to other Government agencies 117. 5. Appendixes 118 5.1. Organization 118 5.2. Fiscal Data on NBS Program 121 5.3. Advisory Committees 121 5.4. Awards and Honors 123 5.5. The National Conference on Weights and Measures—Its Organization and Procedure 124 5.6. List of Publications and Patents 127 V 1. General Review 1.1. Introduction The establishment of new and better standards of physical measure- ment and the development of techniques and instruments for using these standards throughout the Nation are the primary concerns of the National Bureau of Standards. Advancement in measurement is fundamental to technological progress and to scientific growth. To fulfill its principal responsibilities, the Bureau must conduct an imaginative and vigorous research and development program in the physical and engineering sciences. This report reviews the Bureau's work for the past year and presents some of the more significant achievements resulting from the work. Standards and measurement are fields of dynamic research interest. There are literally hundreds of physical standards, and there is a continuous search for new ones. Every major scientific advance must be preceded and followed by new standards and measurement techniques and associated standards. Precision measurement almost always precedes important developments in the experimental sciences. In fact, the precisions achieved in measure- ment may well be considered as indicators of the stage of progress in a particular experimental science. Greater accuracies in experimental data enable, in many cases, the reconciliation of conflicting research theories and the advancement to "discovery" which is so significant in the opening of new areas of scientific investigation. The effort devoted to the measurement sciences, therefore, should be consistent with need for newer and more refined techniques and instru- mentation. In the past decade, research, in both public and private laboratories, has expanded at a rapid rate. The requirement for finer tolerances in our production industries has also become more pressing. New areas of scientific and industrial development have been opened up, each requiring new data on the basic properties of materials, new stand- ards as reference points in making systematic progress, and new methods of measurement which are reliably related to the whole chain of standards and physical constants. The National Bureau of Standards is conscious of its responsibilities to these new areas of science and technology. In many of these areas, professional members of the Bureau's staff are conducting important pioneering research studies in order to produce the critical measurement data required. Within the limits of its budget, and with the cooperation of other scientific organizations throughout the country, the Bureau is following a course of increased concentrated activity in the field oi measurement research. — 1.2.