OAS - Organization of American States: Democracy for peace ...

(a) General. Bricks shall include masonry units up to 4-1/4" thick, 4-1/4" wide and 8-3/4" long not less than 75 percent solid. (b) Tests. Tests shall be made in accordance with BS 1257, or other standard approved by the Authority. (c) Quality. Bricks shall conform to the relevant British or American Standard. ................
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