bids are invited for custom bid for services - 1326036 similar category support services - 1 preparation of sample slips and crushing of the rock samples to size of 1 to 2 cm for eu3og analysis on daily basis. 2 segregating the active and inactive samples after eu3o8 analysis for further crushing for beta-gamma and thorium or ppm analysis. 3 crushing the active samples in increasing order of activity to avoid contamination of less active samples. 4 preparation of samples for beta-gamma analysis after conning and quartering procedure. 5 preparation of samples for thorium analysis after beta-gamma analysis 6 regular maintenance and cleaning of instruments and sample crushing machines, routine checks, repair work, and replacement of worn or nonfunctional parts. 7 miscellaneous works: miscellaneous works: shifting of core boxes and samples. any other work. total quantity :