bids are invited for 1 ml volumetric pipette - class a with nabl certified individual calibration certificate , 2 ml volumetric pipette - class a with nabl certified individual calibration certificate , 10 ml volumetric pipette - class a with nabl certified individual calibration certificate , 5 ml volumetric pipette - class a with nabl certified individual calibration certificate , 20 ml volumetric pipette - class a with nabl certified individual calibration certificate , 25 ml volumetric pipette - class a with nabl certified individual calibration certificate , 250 ml conical flask - o.d x height- 85 x 142 mm neck o.d 50mm , 500 ml conical flask - o.d x height 105 x 175 mm, neck o.d 50 mm , 50 ml burette boroflo stopcock - graduation interval 0.1ml with boroflo stopcock, class a, with nabl certified individual calibration certificate , 100 ml beaker with spout - graduated to indicate the approximate content o.d. x height 50 x 70mm , 250 ml beaker with spout - graduated to indicate the approximate content o.d. x height 70 x 95mm , 500 ml beaker with spout - graduated to indicate the approximate content o.d. x height 85x115 mm , 600 ml beaker with spout - graduated to indicate the approximate content o.d. x height 90 x 125 mm , 1000 ml beaker with spout - graduated to indicate the approximate content o.d. x height 105 x 145mm , 25 ml measuring cylinder - graduated, graduation interval 0.5ml, single metric scale, class a, hexagonal base, pour out, with nabl certified individual calibration certificate , 50 ml measuring cylinder - graduated, graduation interval 1ml, single metric scale, class a, hexagonal base, pour out, with nabl certified individual calibration certificate , 100 ml measuring cylinder - graduated, graduation interval 1ml, single metric scale, class a, hexagonal base, pour out, with nabl certified individual calibration certificate , 250 ml measuring cylinder - graduated, graduation interval 2ml, single metric scale, class a, hexagonal base, pour out,