IEC 62333-3:20 10提供了用于30 MHz至30 GHz频率范围内的数字设备和设备的电磁噪声抑制片（NSS）参数的表征。为统一呈现噪声抑制片的特性提供了指南，旨在用于制造商和用户的技术数据。NSS从源头抑制噪声，而不是从远处吸收噪声。因此，NSS不同于在自由空间中使用的RF波吸收器。本标准针对NSS制造商和用户的以下目的: -它帮助用户理解目录中公布的技术数据； -它指导用户为每个应用选择最优选的NSS； -它为制造商在新开发NSS方面的表现建立了衡量基准；和 -它保持了NSS和应用产品的高可靠性。 本标准中给出的数值是相关NSS的参数（性质）的典型值。NSS测试的目的是材料的基准测试。对特定设备性能值的预测并不总是容易的，甚至是不可能的。每个详细的材料和NSS规格都应由用户和制造商商定。

IEC 62333-3:2010 provides characterization of parameters for electromagnetic noise suppression sheet (NSS) for digital devices and equipment used in a frequency range between 30 MHz to 30 GHz. Guidance is given for uniform presentation of the properties of noise suppression sheet, intended for use in manufacturers and users technical data. NSS suppresses noise at its source, rather than absorbing noise at a distance. Therefore NSS is distinguished from RF wave absorbers used in free space. This standard addresses the following purposes of NSS manufacturers and users:
- it assists users in understanding the published technical data in catalogues;
- it guides users in selecting the most preferable NSS for each application;
- it establishes measurement benchmarking for manufacturers of performance in new development of NSS; and
- it maintains high reliability of NSS and applied products.
The numerical values given in this standard are typical values of parameters (properties) of the related NSS. The purpose of NSS testing is the benchmarking of materials. Predictions of specific device performance values are not always easy or even possible. Every detailed material and NSS specification should be agreed between the user and the manufacturer.