CISPR 16-4的这一部分为参与制定或修改CISPR电磁兼容性（EMC）标准的人员提供了不确定性处理指南。此外，本部分为在实践中应用标准和不确定性方面的人员提供了有用的背景信息。本部分的目的是:a）确定与给定产品符合CISPR建议中规定要求的声明相关的不确定性参数或来源。这种不确定性称为“标准符合性不确定性”（简称SCU，见3.16）；b） 就标准符合性不确定性的大小的估计提供指导； c） 为CISPR标准化符合性测试的符合性标准中标准符合性不确定性的实施提供指导。因此，本部分可被视为一本手册，标准编写者可使用该手册将不确定性考虑纳入和协调现有和未来CISPR标准中。本部分还为监管机构、认证机构和测试工程师提供指导，以判断执行CISPR标准化符合性测试的EMC测试实验室的性能质量。本部分给出的不确定度考虑也可作为对比使用不同替代试验方法获得的试验结果（及其不确定度）的指南。 符合性测试的不确定性还与实际中电磁干扰（EMI）问题发生的概率有关。本部分对这一方面进行了认识和简要介绍。然而，在本部分的范围内，不考虑将符合性试验的不确定性与实际EMI的发生联系起来的问题。本合并版本包括第一版（2003年）及其修正案1（2004年）。因此，除本出版物外，无需下令修改。

This part of CISPR 16-4 gives guidance on the treatment of uncertainties to those who are involved in the development or modification of CISPR electromagnetic compatibility (EMC) standards. In addition, this part provides useful background information for those who apply the standards and the uncertainty aspects in practice. The objectives of this part are: a) to identify the parameters or sources governing the uncertainty associated with the statement that a given product complies with the requirement specified in a CISPR recommendation. This uncertainty will be called 'standards compliance uncertainty' (abbreviated as SCU, see 3.16); b) to give guidance on the estimation of the magnitude of the standards compliance uncertainty; c) to give guidance for the implementation of the standards compliance uncertainty into the compliance criterion of a CISPR standardised compliance test. As such, this part can be considered as a handbook that can be used by standards writers to incorporate and harmonise uncertainty considerations in existing and future CISPR standards. This part also gives guidance to regulatory authorities, accreditation bodies and test engineers to judge the performance quality of an EMC test-laboratory carrying out CISPR standardised compliance tests. The uncertainty considerations given in this part can also be used as guidance when comparing test results (and its uncertainties) obtained by using different alternative test methods. The uncertainty of a compliance test also relates to the probability of occurrence of an electromagnetic interference (EMI) problem in practice. This aspect is recognized and introduced briefly in this part. However, the problem of relating uncertainties of a compliance test to the occurrence of EMI in practice is not considered within the scope of this part.This consolidated version consists of the first edition (2003) and its amendment 1 (2004). Therefore, no need to order amendment in addition to this publication.