What's the difference between IEC and en standards?

One is the international organization for standards, and the other is the regional organization for standards (in some European countries). Just like the national standards and local standards in China, one is implemented nationwide and the other is implemented within the province. It's just that IEC and EN have great influence. Many countries will consider and adopt standards and exports, and even adopt them equally. However, IEC and EN are recommended standards, not mandatory standards. International practices, mandatory laws and regulations, directives, etc. (Generally, it is a product standard, or it involves hygiene, safety and health. ). Foreign standards serve and support laws, regulations and directives. Unlike China, laws and regulations are administrative, and there are few technical laws and regulations, all of which are issued by mandatory national standards.

The reason why they give people a similar impression is that they often quote each other and transform each other, including ISO. We say that the past serves the present and foreign things serve China. In fact, international and regional standards organizations will adopt the standards of other countries if they think these standards are good. For example, the famous ISO 9000 comes from the American military quality assurance standard MIL-Q-9858.

The reason why international standards and regional standards often adopt each other is that as transnational standards, their universality must be fully considered when formulating, that is, the interests of member States (also the requirements of WTO). Therefore, international standards are not necessarily the most advanced. For example, two EU directives, which are in the limelight recently, have drawn up a timetable in order to create trade barriers and give full consideration to the interests of member States. However, many member States can't implement it on time.

BS EN is not EN, strictly speaking, it is adopted by BSI from the British standard EN. It's just that it belongs to equivalent adoption. Moreover, in recent years, we began to pay attention to intellectual property rights, except for the first few pages, which are followed by the original text of en (with BSI's own logo on the side). It wasn't like this before. Pr EN seems to be a discussion draft, not a formal version. Some people have nothing to say in the discussion, and they have not been officially promulgated at all. IEC has two versions, English and French. I guess it is because English is the most widely used language in the world at present, but as the rigor of technical work, it must be standardized in French, the most rigorous language in the world. If there is any difference in understanding, French shall prevail. Every ISO standard will be published in English, French and Spanish at the same time, but unlike IEC, it is a combination of English and French, as if each language is an independent book.

At present, there are actually several types of EN: EN (published by the European Union itself), BS EN (transformed from Britain), DIN EN (transformed from Germany) and NF EN (transformed from France). However, due to the foreign language structure of most people in China, BS EN is the most common language at present.