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IESNA: Illuminating Engineering Society of North America

IESNA, the Illuminating Engineering Society of North America, is a nonprofit organization that develops and publishes standards regarding lighting. Headquartered in New York City, United States, IESNA standards are in effect throughout all of North America with its nearly 8,000 members. Internationally, IESNA collaborates with the International Commission on Illumination to promote uniformity with the rest of the world. Standards from IESNA are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need - please contact us at: or 1-212-642-4980 or Request Proposal Price.

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Recommended Practice for Lighting Industrial Facilities

The primary purpose of this standard is to serve as a guide and educational tool for the design of permanently installed lighting systems for industrial facilities.

IES RP-20-14 (Revised 2016)

Lighting for Parking Facilities (Revised edition) (revised and consolidated by ANSI/IES RP-8-18)

The primary purpose of this document is to provide recommendations for the design of fixed lighting for parking facilities. This document deals entirely with lighting and does not give advice on construction. It provides recommended practices for designing new lighting systems for parking facilities and it is not intended to be applied to existing lighting systems until such systems are redesigned. However, this document does represent current good practice.


Lighting for Hospitals and Healthcare Facilities (Corrected edition)

The objective of this document is to provide context, define challenges, and identify recommended lighting design practices for healthcare-specific environments. This document is not prescriptive but is intended to provide guidance and to inspire by identifying possibilities that enable designers to develop the appropriate solutions for complex situations and spaces.


Lighting Industrial Facilities ANSI approved

Designing succesful lighting systems for modern industrial facilities is a complex task. Careful consideration should be given to all of the following criteria since any one single issue, or combination of several, can have a significant impact on the flow of the manufacturing processes and the productivity of the workers. The quality of illumination The quantity of illumination Lighting required for safety Selection of lighting equipment to achieve the necessary quality and quantity, as well as the mechanical performance required to meet installation and operating conditions Equipment installation for safe, easy and practical maintenance without risk to people, plant facilities or equipment Energy, economic and operating characteristics of the system. The Recommended Practice includes detailed information on each of the criteria, discusses light source and luminaire characteristics, and lighting needs for specific visual tasks within the industrial environment.


Approved Method: Optical and Electrical Measurements of Solid-State Lighting Products

This approved method describes the procedures to be followed and precautions to be observed in performing reproducible accurate measurements of total luminous, radiant, or photon flux; electrical power; system efficacy; luminous, radiant, or photon intensity distribution; and color quantities and/or spectrum of solid-state lighting (SSL) products for illumination purposes, under standard conditions. This approved method covers LED luminaires, OLED luminaires, integrated LED lamps, integrated OLED lamps, non-integrated LED lamps operated with a driver designated by a manufacturer’s identification number or by a defined [ANSI] reference circuit, and LED light engines, all of which will be referred to as SSL products or device under test (DUT). SSL products, excluding non-integrated LED lamps, are intended to directly connect to AC mains power or to a DC voltage power supply to operate.

ANSI/IES RP-27.1-15

Recommended Practice for Photobiological Safety for Lamps and Lamp Systems - General Requirements

This Recommended Practice covers the evaluation and control of optical radiation hazards from all electrically powered sources of optical radiation that emit in the wavelength range from 200 nm through 3,000 nm (3.0 um [micrometers]) except for light emitting diodes (LEDs) used in optical fiber communication systems and for lasers which are covered in a separate series of ANSI (American National Standards Institute) standards (Series Z136). Federal mandatory requirements for lamps subject to specific Federal Regulations take precedence over requirements in subsequent standards included in this series. Note 1: Units of wavelength in this document are exclusively in nanometers (nm). Note 2: Subtended angles are denoted by the full included angle, not the half angle.

IES G-1-16

Guideline on Security Lighting for People, Property, and Public Spaces

This document is intended to provide specific guidelines for situations where it has been determined that security is an issue and is an important determining factor in the design or retrofit of a given property.This publication includes specific sections dealing with critical infrastructure and homeland security. In addition, we have incorporated many of the lessons learned and applied by these agencies throughout.


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