IES approved method for the electrical and photometric measurements of low pressure sodium lamps
By: prepared by the Subcommittee on Photometry of Light Sources of the IES Testing Procedures Committee.
Series: IES -- LM-59-1991.; IESNA lighting measurements series -- LM-59.
Publisher: Illuminating Engineering Society of North America
Published: 1991
Place of publication: New York, N.Y
Language: eng
Subjects: Electric lighting, Sodium vapor -- Standards.
Other titles: Electrical and photometric measurement of low pressure sodium lamps.
Notes: Includes bibliographical references (leaves 7-8).