IEC 60061-4:1990/AMD9:2004 is a supporting amendment to the parent document on lamp caps and holders, together with gauges for the control of interchangeability and safety. It is relevant when teams need to evaluate how the guidance and general information in Part 4 has been updated for conformity assessment, engineering documentation, and procurement review. For organizations working with lighting components, the reference helps align technical validation and compliance workflows with the amended framework in IEC 60061-4:1990/AMD9:2004.

Purpose of IEC 60061-4:1990/AMD9:2004

The purpose of IEC 60061-4:1990/AMD9:2004 is to modify and maintain the guidance associated with lamp caps, holders, and the gauges used to control interchangeability and safety. As an amendment to the parent reference, it supports technical review by clarifying or updating general information that may affect documentation, verification activities, and product evaluation. In practice, it is most useful where engineering teams need a current compliance reference tied to the broader lamp cap and holder series.

Compliance applications of IEC 60061-4:1990/AMD9:2004

IEC 60061-4:1990/AMD9:2004 is typically used in compliance workflows involving lighting component design, test planning, and quality assurance checks for interchangeability-related requirements. Laboratories, manufacturers, and procurement teams may consult it when validating documentation against the parent series, especially where gauges and safety-related considerations influence conformity assessment. It can also support technical assessment during product selection, change control, or regulatory preparation for electrical equipment that relies on standardized lamp cap and holder interfaces.

Benefits of IEC 60061-4:1990/AMD9:2004

Using IEC 60061-4:1990/AMD9:2004 as part of a standards library can improve consistency in technical validation and reduce risk during product evaluation. Because it is an amendment, it helps organizations keep engineering documentation aligned with the updated guidance connected to the parent document. That can support safer interchangeability decisions, more reliable testing workflows, and clearer conformity assessment preparation. It is also useful for procurement and compliance teams that need a precise technical document for review, audit, or specification control.

• Supporting amendment to the parent reference IEC 60061-4:1990
• Relevant to lamp caps, holders, and interchangeability gauges
• Useful for safety-related review and technical assessment
• Helps maintain consistency in testing and conformity workflows
• Supports documentation control in procurement and compliance processes