Compliance with safety standards in mechanical engineering is a crucial aspect for manufacturers, operators and other parties involved to ensure that machines and their working environments comply with applicable legal requirements and offer the highest level of safety. Therefore, the effective machine and plant safety is a fundamental criterion and forms the basis for accident-free working on machines, plants and equipment. However, the evaluation and testing of all parts usually takes a lot of effort. Generally applicable safety standards are therefore a good way to regulate and subsequently verify the safety of components and products. In this context, this article examines the safety of machinery and some common safety standards and guidelines.