BS EN ISO 14122-4 PDF

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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If the designer chooses to verify the safety requirements by calculation, the information relating to the test methods must be taken into account so that the two verification methods are comparable.

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. Anyone responsible for specifying or designing machines or permanent means of access, including building or civil constructions where the main function is to ns access to a machine or process, should download or request a copy of the new White Paper.

BS EN ISO Safety of machinery. Permanent means of access to machinery. Fixed ladders

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. 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.

Remember that compliance with standards is not mandatory but is strongly recommended. For testing stepladders, the reader is referred to ENLadders.

BS EN ISO 14122-4:2016

Clause 4Selection and design of ladder systems, provides some of the information required by the designer, but more is contained in Clause 5. Your basket is empty. In other words, when designing and specifying means of access, consideration should be given to preventing unauthorised access. 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.

White Paper explains machinery safety standards BS EN ISO 14122

References are made to other subclauses sn help in determining which type of access should be selected, but the point to note bz that there must be good reasons for using any means of access other than those listed higher up the hierarchy. I accept the privacy policy. Furthermore, a permanent means of access can prove to be very cost-effective compared with the cost of erecting scaffolding on multiple occasions.


There is no option in the Annex for verifying the safety requirements by calculation. Our site requires cookies to function, click here for more information Ok, thank you. 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. Learn more about the cookies we use and how to change your settings. Sign up to our newsletter for regular email updates on the latest Guarding news and products.

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 oso before but using the previous edition of the standard. Rather than presenting a line-by-line analysis of the standard, the page White Paper provides an explanation for some of the concepts and technical details that are not immediately obvious when reading the standard.

As well as providing requirements for guard-rails on platforms, stairs and stepladders, Clause 7 also gives details for toe plates, self-closing gates and mezzanine gates.

A final point to note is that ISO Part 5 is in preparation, which will deal with permanent means of access on mobile machinery. 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.

Clause 4 presents the General requirements for stairs, stepladders and guard-rails, including the loadings to 1412-4 used in strength and deflection calculations when designing these structures. The four parts are all B-Type standards, meaning they deal with specific aspects of machinery safety and can be applied to a wide range of categories of machinery. Some leeway is provided for designers, as shown by this example from subclause 5. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3.

Sign up to our newsletter for regular email updates on the latest Guarding news and products. Take the smart route to manage medical device compliance. For the purposes of BS EN ISOpermanent means of access are working platforms, walkways, stairs, stepladders, guard rails and fixed ladders. Annex A gives examples of changes that can be dn to the machine or system to make better access possible.

If an anti-climb device is fitted to a ladder, a written warning or audible kso is not adequate for access control. Furthermore, three-point contact needs to be maintained except for very brief periods eg starting a screwheavy ej should not be carried, leaning ladders should be secured and, if stepladders are used and side loads are imposed, then the stepladder should be secured.


You may experience issues viewing this site in Internet Explorer 9, 10 or 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. Following on from the above, subclause 6. Please contact me Request a quote Request a risk assessment Send me a brochure. 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.

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. The previous editions cease to provide a presumption of conformity to the Machinery Directive on 31 December I accept the privacy policy. The clause goes on to provide details of how to test guard-rails and the steps of a stair.

Machine gs small, medium and large enterprises Health and safety bodies regulators, accident prevention organizations, market surveillance, etc. 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.

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This part of BS EN ISO gives requirements for fixed ladders which are a part of a stationary machine, and to the non-powered adjustable parts e.

This is Part 4 in a series of four international standards which define general requirements for safe access to machinery. Our site requires cookies to function, click here for more information Ok, thank you. The four parts are, in full:. More about your enquiry. ENMinimum Gaps to Avoid Crushing Explaining the requirements of the standard for minimum gaps to prevent crushing. While not mandatory, it is highly recommended enn the 14212-4 parts of the standard are referred to, whether the intention is to use custom-designed or modular access systems manufactured from steel, stainless steel, aluminium or another 1412-24.

As with guards, when considering means of access the first approach should 11422-4 to design-out the risks. Annex B lists the significant technical changes between ISO However, see Clause 6 below.

Another point to note from the definitions is that handrails must be rigid, which excludes the use of ropes, chains or cables.