Generally the first IEC standard (such as IEC 61010-1), and then, basically the same year there will be a European standard (EN61010-1),
A little later there will be a U.S. UL61010-1 and Canada. UL61010-1 and Canada's CSA 61010-1, and the corresponding national standard 4793.1 is basically translated. The updates to the national standards tend to lag far behind the IEC standards.
If you want to export products to the European Union, you need to comply with EN61010-1, you said the name of the standard is the name of the whole system, in fact, subdivided into 61010-1 part and 61010-2-xx part, the former is the general requirements, and the latter is for some specific products additional requirements (such as centrifuges corresponding to 61010-2-020)