This standard has been revised by ISO Identifies the parameters that influence visual performance. It also presents the criteria that have to be. ISO /Cor · · ISO/TC · ISO [Withdrawn]. Principles of visual ergonomics — The lighting of indoor work systems. International Standard ISO was prepared as Standard CIE S /E by the International Commission on Illumination, which has been recognized by the ISO .
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Since then lighting practice changed considerably, and it became necessary to prepare uso new guide, this time as a CIE Standard. In some cases enhancement of these influencing factors can improve performance without the need to raise illuminance. For example by improving the contrast of the ieo attributes, enlarging the task by the use of up to date visual aids glasses and by the provision of special lighting systems with local directional lighting capability.
Parameters to create comfortable visual conditions are proposed in the body of this standard. Good lighting requires equal attention to the quantity and quality of the lighting. Lighting of Work Places – Part 1: CIE published its “Guide on interior lighting” 2nd edition in There are also visual ergonomic parameters such as perceptual ability and the characteristics and attributes of the task, which determine the quality of the operator’s visual skills, and hence performance levels.
In this standard opportunity was taken to specify for various work places and task types not just the illuminance but also the limiting discomfort glare and minimum colour rendering index of the source. While the provision of sufficient illuminance on the task is necessary, in many instances the visibility depends on the way in 8995-11 the light is applied, the colour characteristics of the light source and surfaces together with the amount of iao the system gives.
The Standard provides guidance for illuminance, glare limitation and colour quality for sio building areas, agriculture buildings, the cement, concrete and brick industry, ceramic and glass industry, chemical, plastics and rubber industry, electrical industry, food industry, foundries and metal casting plants, hairdresser, jewelry manufacturing, laundries and dry cleaning, leather industry, metal working and processing, paper industry, power stations, printers, iron and steel works, textile industry, vehicle iiso, wood working and furniture industry, offices, retailing, restaurants and hotels, places of entertainment, libraries, indoor public car jso, educational buildings, health care premises, airports, and churches.
Skip to main content. The recommended values are considered to represent a reasonable balance, having regard to the requirements for safe, healthy and efficient work performance. The values can be achieved with practical energy efficient solutions.