supply of synthetic rubber bonded cork sheets to the details all four edges of the sheet shall be uniformly trimmed preferred dimensions thickness 6mm width 925mm length 915mm tolerances on length and width for sheets +/- 3mm tolerences on thickness +/-0.25 mm finish shall be uniform in texture and colour free from cracks and shall have a smooth finish shall be free from cracks and blisters and there shall not be any disintegration of cork flexibility there shall be no breakage through granules of cork or separation of granules the expiry date must not be less than 24 months and shall be marked clearly on the sheet test certificate from nabl accredited labs to be submitted to standards is 4253(latest)
