NBN ISO 24552:2021

This document specifies the methods to improve accessibility of the visual display on small consumer
products in order to minimize inconveniences that a variety of users including people with disabilities
and the elderly can experience while using those products.
In particular, this document focusses on how to present information on small visual displays to make
the product more accessible for older people and people with low vision or colour deficiency. The
provision of different modalities or alternative ways of displaying information to make the product
more accessible is not covered in this document. This document only covers accessibility with regard to
visual presentation of information, not audio or tactile-based display methods.
NOTE 1 Accessibility of a product can be enhanced by adopting alternative means to the visual presentation of
the information, which is not covered in this document. For information about alternative forms of presentation,
ISO/ IEC Guide 71, ISO 9241-112 and ISO 9241-171 can be useful.
NOTE 2 A comprehensive catalogue of accessibility needs and strategies for accommodation for all users (not
only those with visual impairments) is out of scope for this document. Readers interested in this regard can refer
to ISO/ IEC 29138-1.
This document applies to various consumer products equipped with digital displays, in which the
information about operation of the product is visually presented. The products are usually equipped
with built-in display panels. The consumer products include those hand-held products that can be easily
carried by the user or those that are not portable but equipped with small displays, though the size of
the product or the display is not specified in this document.
NOTE 3 This document focusses on the accessibility of small displays, regardless of the size of the consumer
product.
NOTE 4 Examples include, but are not limited to, electronic thermometers, digital cameras, air-conditioning
systems, remote controllers.
This document is not applicable to those products with high flexibility or adjustability in presenting
information on the display. Some examples are web- or application-based displays of ICT devices such
as smart phones, smart TVs, and tablet PCs. It is not applicable to touch-based displays that have both
the functions of display and control. Some examples are touch interfaces of smart watches or digital
cameras. Finally, accessibility issues relating to indicating lamps/ lights used for simple alerts or alarm
are covered in ISO 24550 and are not considered in this document.
NOTE 5 There are many accessibility issues in the touch interface related to information presentation as well
as control function and they need to be dealt with together.
It is possible that some guidance of this document is not applicable to some products, such as oral or ear
thermometers, which have extremely small in-built displays.