IES TM 28 : 2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
PROJECTING LONG-TERM LUMINOUS FLUX MAINTENANCE OF LED LAMPS AND LUMINAIRES
Hardcopy , PDF
05-27-2022
English
01-01-2014
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1.0 Scope
2.0 Normative References
3.0 Definitions
4.0 Samples and Test Data
5.0 Luminous Flux Maintenance Projection
6.0 Report
Annex A - LED Forward Current in the Combined
Extrapolation Method
Annex B - Derivation of the Formulas Used for Combined
Extrapolation Method
Annex C - Example of the Combined Extrapolation Method
Annex D - Statistical Modeling
Informative References
Defines the methods for projecting long-term luminous flux maintenance of LED lamps and luminaires using data obtained when testing them per IES LM-84-14 Approved Method for Measuring Lumen and Color Maintenance of LED Lamps, Light Engines, and Luminaires, as well as data when testing LED sources per IES LM-80-08 Approved Method for Measuring Lumen and Color Maintenance of LED Light Sources.
| DocumentType |
Standard
|
| Pages |
21
|
| PublisherName |
Illuminating Engineering Society
|
| Status |
Superseded
|
| SupersededBy |
| IES LM 80 SPANISH : 2015 | MEASURING LUMINOUS FLUX AND COLOR MAINTENANCE OF LED PACKAGES, ARRAYS AND MODULES |
| IES LM 80 FRENCH : 2015 | MEASURING LUMINOUS FLUX AND COLOR MAINTENANCE OF LED PACKAGES, ARRAYS AND MODULES |
| IES TM 16 : 2017 | SOLID STATE LIGHTING SOURCES AND SYSTEMS |
| IES LM 80 : 2015 | MEASURING LUMINOUS FLUX AND COLOR MAINTENANCE OF LED PACKAGES, ARRAYS AND MODULES |
| IES TM 21 : 2011 | PROJECTING LONG TERM LUMEN MAINTENANCE OF LED LIGHT SOURCES |
| IES LM 84 : 2014 | APPROVED METHOD: MEASURING LUMINOUS FLUX AND COLOR MAINTENANCE OF LED LAMPS, LIGHT ENGINES, AND LUMINAIRES |
| IES LM 80 : 2015 | MEASURING LUMINOUS FLUX AND COLOR MAINTENANCE OF LED PACKAGES, ARRAYS AND MODULES |
| IES RP 16 : 2010 | NOMENCLATURE AND DEFINITIONS FOR ILLUMINATING ENGINEERING |
| IES LM 79 : 2008 | ELECTRICAL AND PHOTOMETRIC MEASUREMENTS OF SOLID-STATE LIGHTING PRODUCTS |
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