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Abbreviated terms The work of preparing International Standards is normally carried out through ISO technical committees.
Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. The main task of technical committees is to prepare International Standards.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Annexes A and B form a normative part of this International Standard. Users of this International Standard should be aware that further or differing requirements may be needed for individual applications.
This International Standard is not intended to inhibit a vendor from offering, or the purchaser from accepting, alternative equipment or engineering solutions for the individual application. This may be particularly applicable where there is innovative or developing technology. Where an alternative is offered, the vendor should identify any variations from this International Standard and provide details. For the convenience of users of this International Standard, annex H provides a list of those normative International Standards cited in clause 2 with national or regional standards which have been found mutually applicable in the context of the requirements in the text.
The user may optionally apply the national or regional standard in the context of the requirement for which the International Standard is cited. It also defines service conditions in terms of pressure, temperature and wellbore fluids for which the equipment will be designed.
This International Standard is applicable to and establishes requirements for the following specific equipment: a ram blowout preventers; ram blocks, packers and top seals; c.
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