bids are invited for calibration of ring and ball apparatus - calibration of ring and ball apparatus ref standards is 1205 astm d36 with magnetic stirrer with heating facility and digital display of temperature heating adjusted through knob suitable for operation on 220v 50hz single phase ac supply each unit is supplied with a bath of heat resistant glass , repair and calibration including change of cells of electronic balance - repair and calibration including change of cells of electronic balance capacity 50kg x 5g , repair and calibration of auto digital tds meter - repair and calibration of auto digital tds meter auto ranging 31by 2 digit led display with facility for temperature compensation and digital cell constant adjustment along with tds cell and other accessories , calibration of thin flim oven - calibration of thin flim oven loss on heating oven vertically rotating type , calibration oflos angeles abrasion testing machine - calibration oflos angeles abrasion testing machine with counter , repair servicing and calibration of bouncy balance - repair servicing and calibration of bouncy balance replacement of cells and repair and replacement of display board , repair and calibration of cleveland open cupflash point - repair and calibration of cleveland open cupflash point open and fire point cleveland electrical heating with npl certificate repair and replacement of heating elements and change of coil , repair and servicing of hot plate - repair and servicing of hot plateheater coil replacement and replacement of knob and requirement of internal wiring , calibration of weighing scale - calibration of weighing scale capacity 30kg , calibration of flakiness gauge , calibration of penetration apparatus - calibration of penetration apparatus of makeaimill ltd , calibration of penetration apparatus - calibration of penetration apparatus of make labquip total quantity : 13