supply of cat b sotres retro reflective sign board , specification of fully retro reflective sign board ( drawing attach with notice of tender ) :- ( i ) item : road sign board fully retro reflective ( both side ) ( ii ) installation type : pole mounted ( iii ) shape of sign board : rectangular ( 1200 x 900mm ) ( v ) base colour of sign board : green ( vi ) material of pole : ms ( v ) pole coating : red oxide ( hex code #6e0303 ) , painted with black enamel paint ( vi ) board with encryption : yes ( vii ) encryption on the sign board : as per buyer requirment and provided by govt buyer ( viii ) pole provided with supply of sign board : yes ( ix ) providing fixture with sign board and pole : yes ( x ) length of sign board ( mm ) : 1200mm ( xi ) width of sign board ( mm ) : 900mm ( xii ) no of acp sheet : 02 ( both side ) 3 mm thick ( xiii ) thickness of acp sheet ( mm ) : 3mm acp ( xiv ) no of pole with sign board : 02 ( xv ) pole size ( mm ) : rhs 66x33x3 . 6mm ( xvi ) pole thickness ( mm ) : 3 . 6mm ( xvii ) pole height ( mm ) : 3000mm ( xviii ) frame : acp pop riveted over the frame made of ms square pipe of 32mm x 32mm ( 16 gauge ) powder coated . ( xix ) retro reflective sheeting : the retro reflective sheeting should be class b type-iv high intensity micro prismatic grade sheeting as per astm d-4956-09 ( mak e- 3m truncated cube retro reflective technology ) . the retro reflective sheeting should be used on the sign board shall consist of approved colour sheeting having smooth surface . it shall be weather resistant and exhibit fastness . it shall be new and unused and show no evidence of cracking , scaling and pitting , blistering , edge lifting or curling and shall have negligible shrinkage or expansion . when totally wet , the sheeting shall show not less than 90 percent of the values of retro reflection . at the end of 7 years , the sheeting shall retain at least 80 percent of its original retro-reflectance . the messages ( letters , numerals , legends , logo , borders etc ) shall be screen-printed or cut out from durable transparent overlay . ( xx ) workmanship : tightly bolted or welded to suitable post . ( xxi ) supply of material : items should be supply with proper packing and without any scracthes . sample to be apporved by the buyer before dispatch of stores