provision of operational works-1 fine aggregate sand coarse as per is 383-1970. for battal 2 bullet resistant glass. bullet riesistance glass of size 65mm thick for loop holes of size 450 mm x 300 mm in slid type with iron frame include necessary arrangements will be made in the frame to fixe the glass in the loop holes. the frame will be pre painted with two coats of red oxide primer of approved make sample approved. the rear side of glass will be covered using 01 no transparent polycarbonate sheet of 1.25 mm thickness. the glass should be safe against ak-47 / slr & sniper rifle of caliber 7.62 mm as per testing norms from rang of 10 m. an inverted “u” shaped opening of height 2” and width 1” will be provided for use of own rifle on lower side centre glass. the glass will be of same specification as approved in the sample and size are as under. note – sample to be produced for field testing during tech evaluation of bid alongwith ballistic test report from a govt recognised ballistic testing facility with essential testing criteria as under:- ( i ) wpn -slr / ak-47 ( ii ) amn -7.62mm ( iii ) range -10m ( iv ) acceptable performance – no perforation or crack