Effects of the International Temperature Scale of 1990 (ITS-90) on CIE documentary standards for radiometry, photometry, and colorimetry

Technical Report · Mon Jan 01 00:00:00 EST 1990

OSTI ID:6062935

Mielenz, K D; Hsia, J J

The differences between ITS-90 and IPTS-68 (International Practical Temperature Scale of 1968) above 1235 K are described. It is shown that none of the following CIE (Commission Internationale de l'Eclairage or International Commission on Illumination) definitions or recommendations require revision because of the introduction of the ITS-90: International Lighting Vocabulary definitions; CIE Standard Illuminants A, D(65), other illuminants; and sources for realizing CIE Illuminants. The effect of the ITS-90 on previously calibrated sources for realizing CIE illuminants is negligibly small.

• Research Organization: National Inst. of Standards and Technology, Gaithersburg, MD (USA)
• OSTI ID: 6062935
• Report Number(s): PB-91-144493/XAB
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
47 OTHER INSTRUMENTATION
CALORIMETRY
STANDARDS
PHOTOMETRY
RADIOMETERS
CALIBRATION
HIGH TEMPERATURE
ILLUMINANCE
LIGHT SOURCES
RECOMMENDATIONS
MEASURING INSTRUMENTS
RADIATION DETECTORS
RADIATION SOURCES
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
440800 - Miscellaneous Instrumentation- (1990-)