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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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.

This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Clause 6, Verification of safety requirementsappears to contradict subclause 5. Furthermore, the standard applies to parts of the building or civil construction if the main function of these is to provide access gs the machine. Procter Machine Guarding 141122-4 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.

While not mandatory, it is highly recommended that the relevant 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 material. Anyone responsible for specifying or designing machines or permanent means of access, including building or civil constructions where the main function is to provide access to a machine or process, should download or request a copy of the new White Paper.

Annex C lists the significant technical changes between ISO More about your enquiry.

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For example, rather than require an access point so that lubrication points can be reached, lubrication points should be made accessible from ground level or a lubrication circuit and pump could be installed. The previous editions cease to provide a presumption of conformity to the Machinery Directive on 31 December A permanent means of access is fixed to the machine or an adjacent structure in such a way that it cannot be removed without the use of tools.

Furthermore, a permanent means of access can prove to be very cost-effective compared with the cost of erecting scaffolding on multiple occasions.

BS EN ISO 14122-4:2016

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. Our site requires cookies to function, click here for more information Ok, thank you.

For testing stepladders, the reader is referred to ENLadders. This is Part 4 in a series of four international standards which define general requirements for safe access to machinery. Furthermore, three-point contact needs to be maintained except for very brief bz eg starting a screwheavy objects 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.

It specifies minimum requirements that also apply when the same means of access is required as the part of the building or civil construction e. Readers who are concerned about what changes might occur in relation to standards once the UK leaves the European Union can rest assured that it is unlikely 141222-4 there will be any change here because BS EN ISO is equivalent to the international standard and it is all but inconceivable that the UK would cease to use this.

Clause 5Specific requirements of ladder systemsprovides extensive information relating to ladder design, including the profiles and dimensions of rungs round rungs are not permitted. 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.


Clause 4 of Part 1 lists the most significant hazards to consider when determining the type and location of the means of access. If guard-rails are being installed alongside platforms or walkways, Part 3 will have to be used in conjunction with Part 2 as well.

The clause goes on to provide details of how to test guard-rails and the steps of a stair.

White Paper 7 – BS EN ISO | Free Downloads | Procter Machine Safety

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. 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. 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.

One issue that is not addressed particularly well in the standard is the question of under what circumstances a permanent means of access is required, though an ISO risk assessment will help.

However, great care should be taken with ribbed ramps, bearing in mind sio subclause 4. For the purposes of BS EN ISOpermanent means of access are working platforms, walkways, stairs, stepladders, guard rails and fixed ladders. Clause 5 lists the general requirements for design and construction of means of access. In other words, when designing and specifying means of access, consideration should 114122-4 given to preventing unauthorised access.

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