BS ISO 17049:2013 pdf download

BS ISO 17049:2013 pdf download.Accessible design -Application of braille on signage, equipment and appliances.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
signage
means of conveying Information about name, direction, location, usage, safety or a form of action
2.2
equipment
permanent device or machine used in daily life in a house, an office or publicly accessible places
EXAM PLE Such devices or machines include kitchen equipment, a copying or printing machine, an automatic teller machine, a ticket kiosk or a lift.
Note Ito entry: In ISO 9999:2011,6.3, and 183003, the term elevatoC Is used for lift.
2.3
appliance
movable device or machine used in daily life, such as an electric appliance for household or office use
2.4
tactile reading
recognizing braille and other tactile information by touch
2.5
tactile readability
ease of reading braille and other tactile information by touch
2.6
braille cell
space for the braille pattern, comprising up to six predefined dots set out in two columns of three
2.7
braille pattern
combination of raised dots within a braille cell
2.8
exclusion zone
area where nothing Is placed around a braille cell or cells
2.9
button
operative device, such as pressure sensitive button, pressure sensitive surtace, touch sensitive button, and touch sensitive surface
— not be damaged in normal use, and
— not be adversely affected by the external thermal environment, moisture or liquid. Where braille and print are both used, the readability of one format shall not impair the readability of the other.
Braille shall be located on a place that is safe to touch, e.g. away from a source of heat or a sharp edge. Where the information displayed in braille Is revised, braille information shall be immediately corrected accordingly.
4.2 Braille on signage
4.2.1 General
Signage with braille shall be located in appropriate positions for easy access.
The number of cells in a single line shall be as follows:
a) if there is only one column in one line, the number of cells shall not exceed 40:
b) if there are multiple columns in one line, the number of cells in one column shall not exceed 40 and the total number of cells shall not exceed 80 in a single line;
c) an exclusion zone of three or more cells shall be placed between each column in a single line.
4.2.2 Handrail
One application, among others, Is on a handrail (see Figure 5).
Braille shall be displayed parallel to the longitudinal direction of a handrail.
Braille shall be displayed on the area where it can be most easily read, and which allows safe reading by touch when a hand holds the handrail. Such an area should be chosen by considering the shape, thickness, surroundings and the nwthod by which the handrail Is fixed.
For a handrail on stairs, braille should be displayed at the end of the handrail, which Is an extension of tactile walking surface indicators (TWSI) (see ISO 23599), if any, on the floor in front of the stairs.
Handralls with braille should have extensions, preferably of at least 300 mm in length on both ends of the staircase; this is to allow for safe reading of braille.