bids are invited for practical upgradation standard tar viscometer, electrical heating comple te with 10mm cup and valve , standard tar viscometer, electrical heating with 4 mm cup and valve , edi compression testing machine 2000kn capacity , curing tank for 6 or 24 cubes of 150mm or 70.6mm size , analogue concrete test hammer with nccbm calibration certificate , digital concrete test hammer with nccbm calibration certificate , air permeability apparatus blain type , automatic blaine apparatus with inbuilt data recording and control software , vicat apparatus , le chatelier mould, with isi certification mark,is 5514 , le chatelier water bath with controller , density basket , brinell cum rockwell hardness tester , ring and ball apparatus , ring and ball apparatus, semi automatic , slump test apparatus with t ing rod and base plate , vibrating table, table top , electronic balance 50kgx5gm , beam mould, 150mm x 150mm x 700mm specimens , sieve shaker,motorised with built-in digital timer and adaptor for 20 cm dia sieves , laboratory electric oven , surveyor compass , prismatic compass , ranging rod , optical square , cross staff , digital planimeter , abney level , tangent clinometer