Safety colours and safety signs — Classification, performance and durability

BS ISO 17398 is a crucial standard for ensuring the effectiveness and longevity of safety signs. It establishes a classification system based on performance and durability, enabling specifiers and manufacturers to select appropriate materials and construction methods for various environmental conditions and hazard levels. The standard defines performance criteria related to colour fastness, resistance to weathering, chemical exposure, and abrasion, ensuring that signs remain legible and effective throughout their intended lifespan. It also addresses the durability of the sign's substrate and the adhesion of any applied graphics or text. By adhering to BS ISO 17398, organizations can significantly improve the reliability of their safety signage, contributing to a safer working environment and reduced risk of accidents. The standard helps in selecting signs that will maintain their visual impact and structural integrity over time, even in challenging conditions.