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1. Scope 1.1 This Guide covers the consideration of environmental impacts in product standards. It is intended for standard w riters; its purpose is (a) to raise awareness that provisions in product standards can affect the environment in both nega

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Update No. 1 was published as notification that this is now a National Standard of Canada This PDF includes Update No. 1 A165.1-04 Concrete block masonry units 1 Scope This Standard applies to concrete block masonry units made from cementitiou

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