What does BS EN mean?

Could you please elaborate on the acronym "BS EN" and its significance in the context of cryptocurrency and finance? I've encountered this term in some recent discussions but haven't been able to find a clear definition. Is it a standard, a regulation, or something else entirely? I'm particularly interested in understanding its relevance to the crypto market and any potential implications it might have for investors or financial institutions. Any insights or clarifications you could provide would be greatly appreciated.