bids are invited for boq total quantity : 1-1 nitric acid-suprapure suprapure -merck / thermofisher brand pack size : 1 ltr / 2.5 ltr 2 metal mix standard solution ( fe, zn, mn, pb, cd, cr, co, cu, ni ) traceable to nist-merckbrand pack size : 100 / 250 ml / 500 ml 3 arsenic standard solution traceable to nist-merckbrand pack size : 100 / 250 ml / 500 ml 4 mercury standard solution traceable to nist-merckbrand pack size : 100 / 250 ml / 500 ml 5 phenol standard solution traceable to nist pack size : 10 gm 6 buffer solution ( disodium tetra borate ) ( 25◦c ) ( ph-9.18 ) 9.18 + 0.03 ( 25oc ) -merckbrand pack size :30 ml x 30 nos =1pkt 7 fluoride standard solution naf in h2o1000mg / l f traceable to nist-merckbrand pack size : 100 / 250 ml / 500 ml 8 sodium standard solutionnano3 in hno3 0.5mol / l 1000mg / l na traceable to nist-merckbrand pack size : 500 ml 9 potassium standard solutionkno3 in hno3 0.5mol / l 1000mg / l k traceable to nist-merckbrand pack size : 500 ml 10 nitrate standard solution nano3 in h2o 1000mg / l no3 traceable to nist-merckbrand pack size : 500 ml 11 standard sodium carbonate traceable to nist-merckbrand pack size : 80 gm 12 ammonia standard solution traceable to nist-merckbrand pack size : 500 ml 13 boron standard solution traceable to nist-merckbrand pack size : 500 ml 14 turbidity-1000 ntu traceable to nist-merckbrand pack size : 500 ml 15 colour standard-1000 hazen unit traceable to nist-merckbrand pack size : 500 ml 16 potassium hydrogen phalate traceable to nist-merckbrand pack size : 80 gm