BS , Rules for the design of cranes — Part 1 Specification for NOTE 3 Attention is drawn to the recommendations given in BS 2) BS , British Standard Code of Practice for Safety of Machinery . B -Type Standards: Definition: B-type standards deal with specific aspects. BS EN BS EN BS EN BS EN E EN EN BS
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BS Section six. Section six. Selection of safeguards. < S. (a). (b). This shows a hypothetical machine in which, by virtue of its design, several. PD , which has evolved from CP () to BS () and PD ( and ), was published on 31 December and replaces. Detail Summary. View all details. Superseded By: BS PD EN. Additional Comments: W/D S/S BY BS PD Format. Details. Price (USD). Secure PDF.
Maag Gear Company, Ltd. SCC Standards Store. Standard Number BS Part 2 , BS The use of any standard by a designer or manufacturer is voluntary. Legal Notices Sitemap. This subsection has been partially redrafted and now mentions the need for a new risk assessment and, if required, guarding if automatic feeding and removal devices are installed.
Part 2: Section 2. Part 3 , BS Part 3 , BS , BS Part 1 , BS , BS Part 4 Replaced By PD Your basket. Your basket is empty.
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The following is typical of a machine specific "C" standard supporting the Machinery Directive:. Lists of standards applying to particular Directives are also available. In many cases transposed harmonised standards define the state of the art for either a product or safety feature.
For example:. BS EN ISO Safety of machinery - Safety distances to prevent hazard zones being reached by upper and lower limbs which was prepared under a mandate given to CEN by the European Commission and the European Free Trade Association more information on the process of developing standards is available.
Nevertheless, the use of even this standard remains voluntary, fundamental as it is for defining safety distances. The standard shows one way this can be done, and if followed gives presumption of conformity.
For example, the physical nature of a product may ergonomically constrain access to dangerous parts even though the safety distance is less than that defined in BS EN ISO , and so it may be justified in particular circumstances to not follow the standard in full. The use of any standard by a designer or manufacturer is voluntary. But where compliance with any standard, and not just transposed harmonised standards, is declared by the Responsible Person without qualification on the Declaration of Conformity for the product, that person is bound to fully meet all requirements of those standards for his product.
Standards are not usually applied retrospectively to products first placed on the market before the standard is published, and may only define the state of the art at the time they were developed and published. European standards, like most others, are therefore subject to periodic review normally the process starts 5 years after the date of publishing in the Official Journal , and so their provisions may change over time.
Standards should normally be referenced to a dated version. Where a standard is referenced undated, for example on a Declaration of Conformity or in a technical file, the market surveillance authorities can assume that the Responsible Person is referring to the latest version of that standard.
Designers and manufacturers should therefore keep aware of the current status of standards relevant to their product, and ensure that product documentation is similarly kept under review and updated as necessary. Prior to the introduction to European product safety Directives, with supporting transposed harmonised standards, many products met National standards. But any standards in conflict with or superseded by European standard have had to be withdrawn, including BS However, much old existing machinery is still in use for which the new European standards can't be retrospectively applied, and so for this situation the text of BS with some updating was republished as Published Document PD So, for pre Machinery Directive equipment that is put into use before this remains the guide to what is considered reasonably practicable for the safety of machinery.
Clearly, as described above, standards are very important for the safe design of new products, but first they have to be produced. If this is not the case a request to the European Commission for a new work item should be made.
Both TCs and WGs depend on the voluntary participation of experts, manufacturers, and regulators in the field of the standards writing. These members are proposed by member states' National Standards Bodies, who will seek other input into the process from their own state. However the standard itself will depend on the skills, expertise, research, commitment and direction of the TC and WG members.
The process essentially relies on a consensus being developed, and usually takes a number of years to complete. When a complete draft is ready it will be made available in a published form for public enquiry for a period of usually 6 months, when detailed comments may be submitted by member states National Standards Bodies. All EU member states can vote at this stage, and the numbers of votes of each member state is weighted.
No one large, or even now several member states can veto the process, which means the objections of a member state can be overruled.
Assuming a majority votes for the draft standard it then goes to the Commission and when ratified is published in the three official languages of the EU identical text in English, French and German as a European Norm with the prefix "EN" and is listed in the Official Journal. Member state national Standards bodies then have 6 months to publish the standard unaltered in their territory before it comes into effect, even if they voted against the standard.
If there is any National comment to be made about the new European standard it will be made here. Due to this short delay some BSI EN standards may have a date one year later than the one listed in the Official Journal, eg one produced in December may not be published by BSI until well into the new year.
The process of preparing new standards ideally works by consensus. However, because of qualified majority voting and the make up of the WG, standards can be developed which can be found to be defective in some way or another perhaps they do not reflect the state of the art for safety, or inadequately detail safety requirements. The drafts produced may reflect the interests of those who drafted them, perhaps not taking account of recent technological developments, accident history, foreseeable misuse, etc.