This International Standard was prepared by Technical Committee ISO/TC 274, Light and lighting, in collaboration with the International Commission on Illumination (CIE).
This first edition of ISO/CIE 8995-1 cancels and replaces ISO 8995-1:2002, which has been technically revised.
Good lighting requires equal attention to the quantity and quality of the lighting. While the provision of sufficient illuminance on the task is necessary, in many instances the visibility depends on the way in which the light is delivered, the colour characteristics of the light source and surfaces together with the level of glare from the system. In this International Standard, opportunity was taken to specify for various work places and task types, not just the illuminance, but also the limiting of discomfort glare and minimum colour rendering index of the source. Parameters to create comfortable visual conditions are proposed in the body of this International Standard. 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.
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 some cases, enhancement of these influencing factors can improve performance without the need to raise illuminance. This can be achieved, for example by improving the contrast of the task attributes, enlarging the task by the use of up to date visual aids (e.g. glasses) and by the provision of special lighting systems with local directional lighting capability.
This International Standard specifies lighting requirements for humans in indoor work places, which meet the needs for visual comfort, performance and safety of people having normal, or corrected to normal visual capacity and response to light. It specifies requirements for lighting solutions for typical indoor work places and their associated areas in terms of quantity and quality of illumination. The illumination can be provided by daylight, electric light sources, or a combination of both.
It also gives recommendations for good lighting to fulfil the needs of integrative lighting. It neither provides specific solutions nor recommendations for atmosphere or aesthetics created by lighting. It does not restrict the designers' freedom from exploring new techniques nor restrict the use of innovative equipment.
The publication is written in English. It consists of 109 pages with 5 figures and 82 tables, and it is readily available from the CIE Webshop or from the National Committees of the CIE.
The price of this publication is EUR 234, - (Members of the National Committees of the CIE receive a 66,7 % discount on this price).