IEC 60904-7:20 19作为IEC 60904-7:20 19 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 60904-7:20 19描述了用于校正光伏器件测试中引入的光谱失配误差的程序，该误差由测试光谱和参考光谱（例如AM1.5光谱）之间的失配以及参考器件和被测器件的光谱响应度（SR）之间的失配引起，从而降低系统不确定性。该过程对于单结器件是有效的，但是该原理可以扩展到覆盖多结器件。如果在测试光谱和参考光谱之间以及参考器件SR和被测器件SR之间存在光谱失配，本文件的目的是给出光谱失配误差校正指南。计算的光谱失配校正仅对用特定测试光谱测量的测试和参考设备的特定组合有效。第四版取消并取代了2008年出版的第三版。与上一版相比，主要技术变化如下: -为了更好的兼容性和更少的冗余，“测试光谱的确定”条款参考IEC 60904-9。 -光谱失配因子被称为SMM而不是MM，以使得能够区分角度失配因子AMM和光谱角度失配因子SAMM。 -增加了光谱失配因子SMM的推导和应用公式。 -给出了例如关于多结器件的新标准的链接。 -更正措辞（响应度代替响应，辐照度代替强度）。

IEC 60904-7:2019 is available as IEC 60904-7:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60904-7:2019 describes the procedure for correcting the spectral mismatch error introduced in the testing of a photovoltaic device, caused by the mismatch between the test spectrum and the reference spectrum (e.g. AM1.5 spectrum) and by the mismatch between the spectral responsivities (SR) of the reference device and of the device under test and therewith reduce the systematic uncertainty. This procedure is valid for single-junction devices but the principle may be extended to cover multi-junction devices. The purpose of this document is to give guidelines for the correction of the spectral mismatch error, should there be a spectral mismatch between the test spectrum and the reference spectrum as well as between the reference device SR and the device under test SR. The calculated spectral mismatch correction is only valid for the specific combination of test and reference devices measured with a particular test spectrum. This fourth edition cancels and replaces the third edition published in 2008. The main technical changes with respect to the previous edition are as follows:
- For better compatibility and less redundancy, the clause “Determination of test spectrum” refers to IEC 60904-9.
- The spectral mismatch factor is called SMM instead of MM to enable differentiation to the angular mismatch factor AMM and spectral angular mismatch factor SAMM.
- Formulae for the derivation and application of the spectral mismatch factor SMM are added.
- Links to new standards are given, e.g. concerning multi-junction devices.
- Corrected wording (responsivity instead of response and irradiance instead of intensity).