【国外标准】 American National Standard Recommended Practice for Electromagnetic Compatibility Limits and Test Levels

This recommended practice presents a rationale for developing emission limits and immunity test levels and recommends that these facets are representative of current practice and user needs. Emission limits generally are written by national and international standards bodies. Emission limits for the most part are specified by regulators, which is the case in the U.S. and Canada. Such regulatory limits take precedence, even if the limits are different from those considered in this document. In the U.S. and Canada, product immunity is not regulated except for some safety equipment. In this way, adequate immunity is more a quality aspect of the product as if it does not operate in its intended RF environment, the user would deem it of poor quality. It should be noted that the entire document does not impose normative requirements, but recommends options.