What does en stand for in BS EN?

Could you please elaborate on the abbreviation "EN" in the context of "BS EN"? I'm curious to understand its significance and what it represents in the broader framework of these standards. Is it a reference to a specific country, organization, or does it have a more general meaning? Additionally, could you provide a brief overview of the BS EN standards and their importance in the field of cryptocurrency and finance? I'm interested in understanding how they contribute to industry regulation and best practices. Thank you for your assistance in clarifying this matter.