This part of IEC 60068 provides background information and guidance for writers and users of specifications for electric and electronic components, containing references to the test standards IEC 60068‑2‑20, IEC 60068‑2‑58, IEC 60068‑2‑69, IEC 60068‑2‑83, and to IEC 61760‑1, which defines requirements to the specification of surface mounting components.