TS 950

TS 950 is a standard concerned with the symbols used on safety signs, their physical dimensions, and the arrangement of those signs. Safety signs are intended to communicate hazards, mandatory actions, or other important warnings at a glance, so legibility, proportion, and placement are as important as the symbol itself.

How symbol, size, and layout work together

The scope of this standard is centered on the symbols placed within the geometric forms of safety signs and on the arrangement of those signs. In general technical terms, symbols can be recognized faster than text, which is why colour, shape, and pictogram need to work together to make the message visible and understandable from an appropriate distance. Dimensions are closely tied to practical factors such as viewing distance, installation environment, and whether the sign stands alone or appears as part of a group.

According to the scope, the standard addresses symbols, dimensions, and layout for safety signs formed in the geometric shapes given in TS 853 Safety Colours. This means it is not only about the graphic symbol itself, but also about the arrangement rules that affect how the warning is perceived as a whole. In practice, that helps keep safety signage more consistent and easier to understand in construction, installation, and operating environments.

• Safety symbols used within geometric sign shapes
• Sizing of the signs
• Placement of symbols on the sign face
• Signs indicating events or materials that require special attention