欧洲标准中EN 与prEN的区别是什么？(pren 是什么标准)

draft European Standard：欧洲标准草案A draft European Standard (prEN) is a standard under development. It is drafted by a Technical Committee and submitted to CEN members for a public enquiry. When a draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.The prEN is established by CEN in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language must be notified to the CEN Management Centre and has the same status as the official versions. A prEN is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard.