DS/EN ISO 12100:2011

Safety of machinery - General principles for design - Risk assessment and risk reduction

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Harmonized under:
  • Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast

Harmonized standards:


This International Standard defines the basic terminology and specifies the methodology and principles for risk assessment and risk reduction to help designers in achieving safety in the design of machinery. These principles reflect the knowledge and experience of the design, use, incidents, accidents, and risks associated with machinery, and provide the basis for assessing and for the removal of hazards or the reduction of risks during the relevant phases of the life cycle of machinery.
This International Standard is also intended to be used as a basis for the preparation of type-B or type-C standards. The provisions stated in this International Standard are intended for the designer.
This International Standard does not deal with risk and/or damage to domestic animals, property or the environment.
This International Standard gives guidance on the information required to allow risk assessment to be carried out. Procedures are described for identifying hazards and estimating and evaluating risk.
This International Standard provides guidance for decisions to be made on the safety of machinery and guidance on the type of documentation required to verify the risk assessment and risk reduction carried out.

Number of pages: 176

Published: 2012-04-20

Date of approval: 2011-09-12

International relationships : EN ISO 12100:2010 IDT ISO 12100:2010 IDT

ICS: 13.110 - Safety of machinery

Item number: M255391



  • CEN/TC 114/WG 1
  • ISO/TC 199/WG 5

Danish committee


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