2018JJF 1703-2018 Calibration Specification for Resonant Type Wavelength Meters
1984JJG 348-1984 Verification Regulation of Resonance Type Wavemeter
JJG 348-1984 Verification Regulation of Resonance Type Wavemeter was changed to JJF 1703-2018 Calibration Specification for Resonant Type Wavelength Meters.