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THE PRIMARY LOAD STANDARD
THE STANDARD OF LENGTH pages 13 to
3 other sections not shown
000-lb capacity absorption accuracy adjusted agreement amplifier apparatus applied argon atomic standard Bergstrand block gauges boiling point broadening cadmium red calibration devices cathode cavity resonator cent coils coincidence method colour temperature correction determined diameter disintegration rate distance effect electrical electrodeless lamp emitted end-gauge end-standards error Essen Figure film frequency standard fringes interference interferometer International des Poids ionization isotope Kerr cell km/s Kosters krypton lamps of Group lightwave standard load luminous flux luminous intensity mass Mc/i Mc/s means measurements mercury metre Michelson mirror National Physical Laboratory nuclides obtained optical oscillator photometric photometric comparisons Phys Plate Poids et Mesures possible precision primary standard proportional counter proving rings quartz quartz clocks radiation reference refraction resistance thermometers rotation scale pan spectral standard of length Stark effect surface Table techniques testing machines tube vacuo vapour pressure velocity of light wave wavelength wavelength standards weights y-ray