bids are invited for test sieve 20 cm dia, 212 micron , test sieve 20 cm dia, 3.35 mm , perforated plate test sieve 20 cm diameter, nominal aperture size of 2.36 mm conforming is 460 p 2 , test sieve 45 cm dia, 12.5 mm , test sieve 45 cm dia, 3.35 mm , ss trays , porcelain crusible , petri dish plate glass , volatile matter crusible with lid , volatile matter crusible stand , silica crusible ,temp. range 1000 deg c , air tight container threaded type , capd disposable effluent sample bag , iron mortar and pestle , digital stop watch , coal sample scoop , shovel with wooden handle 200x250mm , desiccator with sealed cover , benzoic acid nist certified srm standard for calorimetric analysis total quantity : 391