Division 2.7 Wear
United Kingdom
Where severe conditions of erosion or abrasion may arise, adequate measures shall be taken to:
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minimise that effect by appropriate design, e.g. additional material thickness, or by the use of liners or cladding materials,
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permit replacement of parts which are most affected,
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draw attention, in the instructions referred to in point 3.4, to measures necessary for continued safe use.