ISO 14121-2 PDF

ISO/TR. First edition. Safety of machinery — Risk assessment —. Part 2: Practical guidance and examples of methods. Sécurité des. TECHNICAL. REPORT. ISO/TR. Second edition. Reference number. ISO/TR (E). Provläsningsexemplar / Preview. Technical Report ISO/TR Ed. Written on 11 February Posted in Documents. ISO/TR Safety of machinery.

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Jon Severn, the editor of MachineBuilding. Principleswas published in September it was generally well received.

However, in contrast to the standard it replaced, namely ISO It therefore contains numerous 1121-2 to Part 1; for example, readers are referred to Part 1 for all terms and definitions bar one. The bulk of the document is taken up with Clause 4, Preparation for risk assessment, Clause 5, Risk assessment process, and Clause 6, Risk reduction.

ISO/TR 14121-2 for machinery risk assessments – a review

Clause 7 covers Risk assessment iteration and Clause 8 covers documentation. Readers will also appreciate the two very useful Annexes: Annex A gives examples of methods for several steps of the risk assessment process; and Annex Izo contains an example application of the process of risk assessment and reduction.

Given the title of this Technical Report, readers may be pleasantly surprised to learn that it includes risk reduction as well as risk assessment. However, given the iterative nature of the risk assessment process, a failure to include risk reduction might have been viewed as an omission.

This clause states that the objective, scope and deadlines for the risk assessment should be defined at the outset. It also notes the benefits of using a uso for the risk assessment, and discusses the composition of the team and the role of the team members.

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While Clause 5 provides information on the criteria for selecting appropriate methods and tools for each step of the risk assessment process, Clause 4 highlights that consideration should be given to the machinery, the likely iwo of the hazards, the purpose uso the risk assessment, and the skills, experience and preferences of the team undertaking the assessment. This Clause is effectively a detailed explanation of the risk assessment process shown in Figure 1 of ISOexcept for a few steps – such as determination of the limits of the machinery, and hazard identification – where readers are referred back to ISO Other useful information in Clause 5 includes a discussion of the merits and limitations of top-down and bottom-up approaches to hazard identification, and the appropriateness or not 141212- creative thinking during different stages in the risk assessment process.

In addition, hybrid tools can make use of a combination of the above methods. Detailed discussions of each tool are provided.

This clause highlights the need to repeat all stages of the risk assessment after the protective measures have been incorporated. This last example is a hybrid method of numerical scoring and a risk iiso.

Technical Report ISO/TR Ed.

In all six examples, considerable detail 14211-2 provided, including graphs and tables where appropriate. Most of the examples conclude with a discussion of the method and its suitability for different types of machinery. For a reader who is trying to decide which risk assessment method to use, a good starting point might be to read all the discussion sub-clauses before studying the detail of the examples.

This Annex considers the risk assessment and risk reduction process for a single-spindle vertical moulding machine. Although it uso described as ‘non-exhaustive’ it nevertheless contains considerable detail.

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Running to around 21 pages, the example includes diagrams, tables and circuit diagrams. Clause 4 – Preparation for risk assessment This clause states that the objective, scope and deadlines for the risk assessment should be defined at the outset. Clause 14121- – Risk assessment process This Clause is effectively a detailed explanation of io risk assessment process shown in Figure 1 of ISOexcept for a few steps – such as determination of the limits of the machinery, and hazard identification – where readers are referred back to ISO Risk matrix Risk graph Numerical scroring Quantified risk estimation In addition, hybrid tools can make use of a combination of the above methods.

ISO/TR for Machinery Risk Assessments – A Review

Clause 7 – Risk assessment iteration This clause highlights the need to repeat all stages of the risk assessment after the protective measures have been incorporated. Annex A – Examples of methods for several steps of the risk assessment process Six examples are provided as follows: Hazard identification by application of forms Risk matrices Risk graphs Numerical scoring Quantified risk estimation Hybrids This last example is a hybrid method of numerical scoring and a risk matrix.

Annex B – Example application of the process of risk assessment and reduction This Annex considers the risk assessment and risk reduction process for a single-spindle vertical moulding machine.