The new standard that will supersede EN ISO 13849-1:2015 was published in November 2023:
EN ISO 13849-1:2023 Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design.
This standard was harmonised for the EU in May 2024 and designated for the UK in September 2024. It defines a new state of the art for safety-related parts of control systems. Machinery manufactured in conformity with the standard will be presumed to comply with the essential health and safety requirements (EHSRs) of the Machinery Directive 2006/42/EC and Supply of Machinery (Safety) Regulations 2008. EN ISO 13849-1:2015 will remain a harmonised and designated standard until 15th May 2027 when this status will be withdrawn.
A new version of the accompanying standard EN ISO 13849-2 is under development with the new title Guidance for the design and validation. A new third part is also under development, ISO 13849-3 Markov model-based PFH (average frequency of a dangerous failure per hour) calculation.
Manufacturers of machinery who use EN ISO 13849-1:2015 to demonstrate the conformity of safety-related parts of the control system should be aware of the changes that will affect their machinery– if you have not done so already, we recommend you take appropriate action to determine the impact and make necessary changes on your machinery and technical files immediately.
Please request a copy of our factsheet here