Judging whether the fiberglass safety helmet is qualified can be approached from multiple aspects. Firstly, check the product identification. Qualified safety helmets should be marked with permanent identification in a prominent position, including manufacturer name, production date, product name, standard number, license number, and other information. These markings are important proof that the safety helmet meets relevant standards and quality requirements, and any lack of them may lead to problems.

Secondly, check the appearance quality. Observe whether the surface of the cap shell is smooth and flat, and whether there are defects such as cracks, sand holes, pores, burrs, etc. Cracks and sand holes can reduce the strength of the safety helmet, making it easy for the helmet shell to crack when impacted; Burrs may scratch the user. At the same time, check whether the structure of the hat lining is complete, whether the straps are firm, and whether the connections between various components are tight. If the lining of the helmet is loose or the strap is broken, it will affect the comfort and protective effect of the safety helmet.

Furthermore, conduct simple physical tests. You can gently press the cap shell to feel its elasticity and strength. A qualified fiberglass safety helmet should have a certain degree of elasticity when pressed, and there should be no significant deformation or damage. You can also try stretching the strap of the hat lining to see if it has sufficient strength and will not easily break. In addition, drop the safety helmet freely from a certain height (about 1 meter) and observe whether it will crack or deform severely. A qualified safety helmet should be able to withstand such a simple impact test.

Finally, check if there are any relevant testing reports and certification certificates. Safety helmets produced by legitimate manufacturers should pass various performance tests stipulated by the state, such as impact absorption performance tests, puncture resistance tests, etc., and be accompanied by corresponding testing reports. At the same time, relevant certification certificates should also be obtained, such as industrial product production licenses, which are important basis for the qualified quality of safety helmets.