bids are invited for laboratory chemicals test sieves 8 inch no bss 44mesh with nabl test certificate , test sieves 8 inch no bss 60 mesh with nabl test certificate , nitric acid a.r. grade 2.5 ltr pack , ashless flter paper no 40 125 mm dia 100 circles per packet , plastic cylinder graduated single metric scale with pour out with hexagonal base cap. 1000ml , perchloric acid ar grade min.70 percent assay packing 2.5 litre in glass bottle , sodium oxalate ar grade , sieve test brass with frame 8inch dia mesh 150 with nabl certificate , ammonium persulphate ar , hdpe bags with plastic liner size 19 inch x 30 nchfor sample collection , xylenol orange indicator , portable hand held ph meter ph100 accuracy of plus minus 0.01 ph with temp indication , silica sand for fire assay in gold and silver analysis size less than 0.5mm purity greater than 95.0 percent with certificate , ss weight class f1 ,1kg, with nabl callibration certificate , sodium acetate trihydrate ar grade , hydro bromic acid ar grade total quantity : 4643