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BS EN 1856-1-2009
Chimneys. Requirements for metal chimneys. System chimney products
适用范围：This European Standard specifies the performance requirements for single and multi-wall system chimneyproducts with rigid metallic liners (chimney sections, chimney fittings and terminals, including supports) withnominal diameter up to and including 1200 mm, used to convey the products of combustion from appliancesto the outside atmosphere. It also specifies the requirements for marking, manufacturer's instructions, productinformation and evaluation of conformity. Metal liners and metal connecting flue pipes not covered here areincluded in EN 1856-2:2009.This European Standard does not apply to structurally independent (free standing or self-supporting)chimneys.
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