The ISO safety sign "Warning of Biological Hazard" from Brady is an effective warning sign specifically designed for indoor use. With a height of 87 millimeters and a width of 100 millimeters, it provides a clear and eye-catching representation of the warning. The sign is made of durable aluminum, known for its longevity and resilience. The color scheme of black on a yellow background ensures that the warning stands out immediately, drawing attention to potential biological hazards. This safety sign meets ISO standards, making it an important element for safety in work environments where biological hazards may exist. It is ideal for use in laboratories, medical facilities, or other areas where biological materials are handled. By using metal as the material group, the sign is not only sturdy but also easy to clean and maintain, making it a practical choice for various applications.