procurement of essential equipments for quality control and investigation units at riqcl thiruvananthapuram procurement of essential equipments for quality control and investigation units at riqcl, thiruvananthapuram , cast iron mould of 150mm cube with isi certification mark, moulds should strictly confirm is 10086-2021 with permissible dimension tolerance and thickness. , plastic cube mould 150 mm , air compressor for demoulding concrete from plastic mould , the slump cone apparatus for conducting the slump test consist of a mettallic mould in the form of a frustum of a cone having the internal dimensions as : bottom diameter 20cm, top diameter 10cm, height 30cm and the thickness of the metallic sheet ( brass or aluminium shall not be used)for the mould should not be thinner than 1.6mm complying is: 1199 and including tamping rod 16mm dia and 60 cm long and round at one end and having isi certification mark. , scoop for slump test apparatus , depth gauge 6 , portable infrared thermometer , supplying, installing and trial running of sieve shaker driven by motor-with nabl accredited calibration and fitted with 1. maximum seven sieves of 300 mm diameter accommodate. 2. suitable for operation on 230v, 50 hz and single phase ac supply. 3. fited with timing switch 0-60 mts including cost, conveyance, commissioning, 3 years amc, 1 year warranty and errection charges etc complete. , velocity meter for river flow measurement , portable sounder and depth meter finder for rivers (range 1 m to 100 m depth) , ultrasonic distance meter (distometer range 0 m to 40 m) , annular surcharge weight of 2.5 kg, 147 mm dia with 53 mm dia central hole for cbr mould (2250 ml) & should strictly confirm to is 9669-1980. , slotted surcharge weightof 2.5 kg, 147 mm dia with 53 mm dia central hole for cbr mould (2250 ml) & should strictly confirm to is 9669-1980.