1. Safety warning signs are suitable for chemical workplaces, and chemical safety labels usually appear on the outer surface of chemical packaging.

2. In terms of content elements, both of them have hazard transmission elements such as pictograms and hazard descriptions representing chemical hazards, and also have some unique contents. Compared with the safety label, the safety warning label lacks the "supplier label", which is mainly because the safety warning label is only used in the workplace of enterprises, and its function is to publicize the chemical hazards involved in production, storage and other work links to potential exposed persons (including workers and management personnel), and does not involve sales, transportation and other circulation links; Compared with safety warning signs, safety labels lack two elements: "physical and chemical characteristics" and "protective equipment description".

3. Because warning signs are used to publicize the dangers in the production site, their sizes are needed. Generally, there are two display modes, horizontal and vertical. As one of the ways to track chemical packaging along the supply chain and transmit hazards downstream, safety labels are limited by the size of packaging.

4. Safety labels are generally pasted, bolted or sprayed on the outer surface of the package, while warning signs are pasted, hung or fixed in a prominent position at the entrance and exit of the workplace, on the outer wall or beside the reaction container and pipeline.