Invitation to Bid - 1)Abrasive Charges (Steel Balls). Abrasive Charges (Steel Balls) to determine the abrasion resistance of the material (IS 10070(1982)) 2)MECHANICAL SIEVE SHAKER (IS 460, PART 1 & PART 3) Mechanical Sieve Shaker device used to automate the process of particle size analysis. Equipment should be as per IS specification. 3)WET AND DRY SIEVE ANALYSIS[40mm,20mm,10mm,4.75mm,2mm,600mic.,425mic,212mic,75mic] Wet and Dry Sieve Analysis used to determine the particle size distribution of granular materials 45 cm dia ( IS: 460 - 1962) in Maharashtra