BS EN ISO 24550:2019

This standard BS EN ISO 24550:2019 Ergonomics. Accessible design. Indicator lights on consumer products is classified in these ICS categories:

• 11.180.15 Aids for deaf and hearing impaired people
• 11.180.30 Aids for blind or partially sighted people
• 13.180 Ergonomics

This document specifies design requirements and recommendations for indicator lights, mainly LED sourced, on consumer products for use by older people and people with visual disabilities. It does not consider the needs of persons who are blind.

Indicator lights include those that inform users visually about the conditions, changes in functional status and settings, and malfunction of products. They convey information by light on/off, time-modulated intensity, blinking, colour, luminance level, and layout.

This document addresses household and home appliances. It excludes electronic displays presenting characters and graphics, machinery, and appliances in special use for professional, technical, and industrial applications.