Could you double-check the standard number? If you meant (the most probable match for "60099x"), it's published in multiple parts covering different domains of electrotechnology.

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The standard is a copyrighted document and typically requires purchase. Direct downloads of the full text are available from these authorized distributors: Official IEC Webstore IEC 60099-5:2018 ANSI Webstore IEC 60099-5 Ed. 3.0 en:2018 iTeh Standards IEC 60099-5 Catalog (Includes previews and redline versions) ANSI Webstore Key Content & Technical Scope

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: Clarifies that residual voltage is a primary parameter for performance verification. Typical maximum values are now detailed in Annex F .