In various practical application scenarios such as daily household maintenance, construction, and various industrial operations, ladders, as an indispensable core tool for high-altitude work, their own safety is directly and crucially related to the personal life safety of the users. However, it is regrettable that due to improper operation of ladders during use or users' insufficient understanding of ladders, accidents such as slipping and falling occur frequently. This phenomenon undoubtedly reveals the significant weak links in the current industry's safety management.

All kinds of climbing ladders widely used in our daily life have special labels uniformly affixed to the prominent and easily observable positions on the ladder body. These labels are composed of different signs and are detailed in content, almost covering all the important information of the ladder. Therefore, before using a ladder for high-altitude operations, users must carefully and meticulously check all the contents on these labels, strictly follow the guidelines indicated on the labels, and use the ladder correctly and without error. This ensures that every high-altitude operation can be carried out smoothly in a safe and reliable environment, maximizing the protection of the user's life safety.

Take ladders sold domestically as an example. Their labels usually include the following content

Of course, the markings on ladders are far more than these. In the standards for ladders in different countries and regions, relevant regulations have been made on the markings of ladders, requiring that the markings of ladders should be firmly fixed on the clear and easily visible surface of the ladder, and both the ladder and the ladder components that can be used independently should be affixed with basic safety signs, which should be easy to observe. For example, GB/T 17889.3 has made corresponding requirements for ladder markings that comply with Chinese standards.

GB/T 17889.3 Information on the use of the ladder

However, in the ladder standards formulated by different countries and regions, there are often some subtle differences in the specific expression of signs. For instance, in China's national standards, to clearly distinguish professional-grade ladders from household ones, designers have adopted silhouette diagrams of factories and houses as symbols, thereby intuitively conveying the usage environment and application scope of the ladders. Specifically, the silhouette of the factory represents a professional-grade ladder that can be applied in industrial environments. The silhouette of the house represents a household ladder, which is only suitable for daily family use. However, in the European standard system, in addition to using similar silhouette marks, the content of the marks has been further refined by adding silhouettes of people wearing safety helmets or not. This design not only distinguishes the usage levels of the ladder but also emphasizes the elements of safe use. Through the illustration of whether the person is wearing a safety helmet, it reminds the user of the safety precautions they should pay attention to when using the ladder. In this way, the logo in the European standard not only provides information on the ladder level but also adds important safety tips, making the logo's functions more comprehensive and practical.