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You might be searching for a free PDF because you need this standard for one of the following reasons:
| Use Case | Why IEC 60034-9 is necessary | |----------|-------------------------------| | Motor purchase specifications | To ensure supplied motors meet contractual noise limits. | | Factory acceptance testing (FAT) | To verify motor noise before shipment. | | Workplace noise compliance | To meet OSHA, EU, or local occupational noise regulations. | | Product certification | To get CE marking or other approvals requiring noise declaration. | | Troubleshooting | To compare measured noise against defined limits. |
Several countries adopt IEC 60034-9 verbatim as their national standard and may release it for free or low cost. Examples:
| Country | Equivalent Standard | Notes | |---------|-------------------|-------| | India | IS 15960 (Part 9) | Available for free from BIS website (registration required). | | Brazil | ABNT NBR IEC 60034-9 | Free for members of ABNT. | | China | GB/T 10069.1 | Similar but not identical – use with caution. |
Important: Always verify that the national adoption is harmonized with the latest IEC revision.
While I can guide you on where you might find a free PDF, I must note that accessing standards for free can sometimes be challenging due to copyright laws and the need for standards organizations to fund their activities. Here are a few strategies:
Many technical universities subscribe to IEC Webstore or IHS Markit standards packages. If you are a student, professor, or affiliated researcher, you can download the PDF for free from your campus network. Public libraries in large cities sometimes have subscriptions to engineering standards databases.
The most common free PDFs floating around are IEC 60034-9:2007 or even 1999. The current valid version as of 2025 is IEC 60034-9:2022. Using an obsolete standard in a contract or legal dispute could cause significant liability.
The official PDF from the IEC Webstore costs approximately 150–250 CHF (Swiss francs), roughly $170–280 USD. That is expensive for an individual but standard for corporate use.
However, some resellers offer lower prices:
