The reflective vest is mainly made of polyester, which is easy to ignite and melt near the flame.
1On April 3, 984, the Ministry of Chemical Industry issued the Notice on Prohibiting Wearing Chemical Fiber Fabrics in Flammable and Explosive Places (No.Watson Zisi 18), requiring all kinds of workers engaged in open flame operations and those working in inflammable and explosive posts not to distribute chemical fiber clothing (including clothes and hats) or wear chemical fiber fabrics to work. However, in the Notice of the State Administration of Work Safety on Abolishing 242 Normative Documents on Work Safety, this notice was abolished.