This second edition cancels and replaces the first edition (ISO ), which has been technically revised. It also incorporates the Amendment ISO. Annex A of BS EN ISO provides examples of changes that can be BS EN ISO Safety of machinery – Permanent means of access to. Procter Machine Guarding has published a new White Paper that explains the requirements laid down in the edition of BS EN ISO
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BS EN ISO part 1 covers the choice of 41122-4 means of access and the general requirements, while part 2 relates to working platforms fn walkways, part 3 is stairs, stepladders and guard-rails, and part 4 addresses fixed ladders. Clause 6, Verification of safety requirementsappears to contradict subclause 5. However, the same subclause states that the minimum height of the guard-rail shall be mm, so it appears that the former may be a typographical error and the height of the handrail should be greater than or equal to mm.
White Paper 7 – BS EN ISO | Free Downloads | Procter Machine Safety
Who is this standard for? In general, if it is anticipated that regular access will be required for machine operation, cleaning or maintenance, then a permanent means of access should be given due consideration see also Clause 5 below. It will, therefore, help readers to understand and interpret the machinery access standard, whether they are new to designing permanent means of access or have designed them before but using the previous edition of the standard.
Where there are hazards not covered by the standard, such as moving parts of machinery, extreme temperatures or hazards caused by the environment, the standard says that these should be considered and addressed by, for example, preventing unauthorised access. Note that subclause 6. Procter Machine Guarding offers free Machine Guarding Compliance Surveys of standalone machinery and assemblies of machines, old or new, and can also assess permanent means of access.
General requirements for the design and construction of fixed and movable guards.
Annex C lists the significant technical changes between ISO More about your enquiry. As part of the free survey, the safety engineers provide a short written report that identifies areas of non-compliance and actions that can be taken to reduce risk, improve safety and comply with PUWER.
White Paper explains machinery safety standards BS EN ISO 14122
All four parts of ISO are Type-B standards and are therefore potentially applicable to all types of machinery — though, as the White Paper explains, Part 1 must be used in conjunction with at least one of Parts 2, 3 or 4.
As well as applying to rigidly attached means of access, the standard also applies to non-powered adjustable or movable parts such as sliding or folding ladders. Please download Chrome or Firefox or view our browser tips. ENMinimum Gaps to Avoid Crushing Explaining the requirements of the standard for minimum gaps to prevent crushing.
Another point to note from the definitions is that handrails must be rigid, which excludes the use of ropes, chains or cables. The four parts are, in full:.
BS EN ISO Safety of machinery. Permanent means of access to machinery. Fixed ladders
As with guards, when considering means of access the first approach should be to design-out the risks. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.
References are made to other subclauses that help in determining which type of access should be selected, but the point to note is that there must be good reasons for using any means of access other than those listed higher up the hierarchy. Overview Product Details What is this standard about? Part 1 contains useful definitions, such as those for fixed ladder, stepladder, stair and ramp essentially the differences relate to the angle of pitch, and ladders have rungs whereas stepladders and stairs have steps.
Clause 6Specific requirements applicable to step laddersprovides similar details to those in Clause 5. However, it is almost inevitable that Part 3 will also be required, because this covers the guard-rails that are usually necessary with platforms and walkways.
For testing stepladders, the reader is referred to ENLadders. However, see Clause 6 below. Annex ARequirements for the design of anti-climb devices, is normative and should, therefore, be complied with often an Annex to a standard is informative only. Procter Machine Guarding believes that its new White Paper is the most comprehensive guide to ISO parts 1 to 4 that has been published to date, and certainly the versions.
General requirements for the design and construction of fixed and movable guards. Interestingly, a pragmatic approach is adopted, with several exceptions allowed under particular circumstances. Clause 8Verification of safety requirementsgives a choice of testing or calculation. It may seem strange that permanent means of access to machinery are related to machine guarding but, in fact, they are.