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IES LM-41

APPROVED METHOD: PHOTOMETRIC TESTING OF INDOOR FLUORESCENT LUMINAIRES

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Organization: IES
Publication Date: 6 January 2020
Status: active
Page Count: 27
scope:

This guide provides adequate and uniform methods for determining and reporting the photometric characteristics of indoor fluorescent luminaires. It describes characteristics of luminaires and some components, as well as the requirements for the thermal environment and proper control of the electrical and mechanical systems involved in testing. This document is also concerned with general test conditions and the testing procedure best suited for achieving accurate and consistent photometric results.

Document History

IES LM-41
January 6, 2020
APPROVED METHOD: PHOTOMETRIC TESTING OF INDOOR FLUORESCENT LUMINAIRES
This guide provides adequate and uniform methods for determining and reporting the photometric characteristics of indoor fluorescent luminaires. It describes characteristics of luminaires and some...
LM-41
April 23, 2014
Approved Method for Photometric Testing of Indoor Fluorescent Luminaires
This guide provides adequate and uniform methods for determining and reporting the photometric characteristics of indoor fluorescent luminaires. It describes characteristics of luminaires and some...
LM-41
May 26, 1998
Approved Method for Photometric Testing of Indoor Fluorescent Luminaires
A description is not available for this item.
LM-41
January 1, 1985
Approved Method for Photometric Testing of Indoor Fluorescent Luminaires;
A description is not available for this item.

References

This document references:
IES LM-72 - APPROVED METHOD: DIRECTIONAL POSITIONING OF PHOTOMETRIC DATA
Published by IES on February 13, 2020
It is important to note that this document assigns specific, standard meaning to certain words; thus, some users might need to adjust their vocabulary. Most should find a positioning system...
This document references:
IES LM-37 - APPROVED METHOD: DETERMINATION OF AVERAGE LUMINANCE (CALCULATED) FOR INDOOR LUMINAIRES
Published by IES on January 1, 2020
The methods of calculating average luminance, contained in this Guide, cover various open bottom apertures as well as flat and drop lensed units including units, with multiple openings in the light...
This document references:
IES LM-54 - APPROVED METHOD: IES GUIDE TO LAMP SEASONING
Published by IES on October 11, 2019
This Approved Method applies to normal and accelerated seasoning of incandescent filament lamps, cathode fluorescent lamps, and high intensity discharge (HID) lamps. Additional information on these...
This document references:
LM-66 - APPROVED METHOD: ELECTRICAL AND PHOTOMETRIC MEASUREMENTS OF SINGLE-BASED FLUORESCENT LAMPS
Published by IES on January 1, 2020
This Approved Method describes the procedures to be followed and the precautions to be observed in order to obtain uniform and reproducible measurements of the electrical and photometric...
This document references:
IES LM-72 - APPROVED METHOD: DIRECTIONAL POSITIONING OF PHOTOMETRIC DATA
Published by IES on February 13, 2020
It is important to note that this document assigns specific, standard meaning to certain words; thus, some users might need to adjust their vocabulary. Most should find a positioning system...
This document references:
IES LM-9 - APPROVED METHOD: ELECTRICAL AND PHOTOMETRIC MEASUREMENT OF FLUORESCENT LAMPS
Published by IES on May 15, 2019
This Approved Method describes the procedures to be followed and the precautions to be observed in obtaining uniform and reproducible measurements of the electrical and photometric characteristics of...
This document is referenced by:
IES LM-28 - APPROVED METHOD: GUIDE FOR THE SELECTION, CARE, AND USE OF ELECTRICAL INSTRUMENTS IN THE PHOTOMETRIC LABORATORY
Published by IES on January 1, 2020
This guide describes terms used to define instrument capabilities for electrical quantities, angular positioning, optical radiation detectors, airflow, and temperature. In addition, the reader is...
This document is referenced by:
IES LM-46 - APPROVED METHOD: PHOTOMETRIC TESTING OF INDOOR LUMINAIRES USING HIGH INTENSITY DISCHARGE OR INCANDESCENT FILAMENT LAMPS
Published by IES on January 1, 2020
The photometry of luminaires with high intensity discharge (HID) lamps, including mercury vapor, highpressure sodium (HPS), or metal halide lamps, is covered by this method. Also covered are similar...
This document is referenced by:
IES LS-4 - LIGHTING SCIENCE: MEASUREMENT OF LIGHT - THE SCIENCE OF PHOTOMETRY
Published by IES on January 6, 2020
This Lighting Science (LS) document describes the various types of photometry and photometric instrumentation, including laboratory and field equipment and measurement types, and instructions for...
This document is referenced by:
IES LM-10 - APPROVED METHOD: PHOTOMETRIC TESTING OF ROADWAY AND AREA LIGHTING FLUORESCENT LUMINAIRES
Published by IES on January 1, 2020
This Lighting Measurement (LM) guide defines adequate and uniform methods for measuring and reporting the photometric characteristics of roadway and area lighting fluorescent luminaires. It describes...
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