Category 31L Class 1A Pressure Sensitive Reflective Rear Marking Plate

Safety Sign legible viewing distance guide

Signs should be large enough to view without straining the eyes when communicating safety messages to employees and/or visitors. Therefore, choosing the size of a sign is more than fitting it to the space you have available. In order to comply with AS 1319, you must consider the environment, lighting and viewing distance – these factors will determine the size of sign required to suit your application. The recommended minimum sizes as per AS 1319 are as follow. For a pictogram and worded sign in a factory or work environment, where lighting is good and the sign will be mounted in a reasonably prominent position:

• Pictogram size is to be at least 15mm per metre of viewing distance
• Text size:
• Upper case: 5mm per metre of viewing distance
• Lower case: 4mm per metre of viewing distance