bids are invited for procurement of crm buffer solution ph 4.01 - buffer solution ph 4.01 (25 degree centigrade ) red 500 ml , sodium chloride crm - sodium chloride crm-80g , potassium hydrogen diiodate - potassium hydrogen diiodate crm , sulfate standard solution - sulfate standard solution 1000ppm crm 500 ml , calcium carbonate - calcium carbonate crm-50g , nitrite standard solution - nitrite standard solution1000 ppm crm , bod standard - bod standard 198 40 mg/l traceable to nist , turbidity 1000 ntu calibration standard-formazin - turbidity 1000 ntu calibration standard-formazin(crm) 100 ml , phosphate standard solution - phosphate standard solution traceable to srm from nist kh2po4in h2o , ammoniaas nh3 n crm or ammonium chloride in water - ammonia(as nh3 n) crm or ammonium chloride in water , iron standard solution - iron standard solution(1000 ppm) (crm) 100 ml , mercury standard solution - mercury standard solution(1000 ppm) crm 100 ml , beta endosulfan standard - beta endosulfan standard- 100mg crm , alpha- endosulphan standard - alpha- endosulphan standard-100 mg crm , alderin standard - alderin standard-250 mg crm , dieldrin standard - dieldrin standard-50 mg crm , endo sulphan sulphate standard - endo sulphan sulphate standard-100 mg crm , beta-benzene hexachloride standard - beta-benzene hexachloride standard-100 mg crm , alpha benzene hexa chloride standard - alpha benzene hexa chloride standard-100 mg crm , gamma-benzene hexa chloride lindane - gamma-benzenehexachloridelindane- 250 mg crm , 2,4 dichloro di phenyl trichloro etane standard - 2,4 dichloro di phenyl trichloro etane standard (for ddt)- 50 mg crm , 4,4 di chloro di phenyl tri chloro etane standard - 4,4 di chloro di phenyl tri chloro etane standard (for ddt)-100 mg crm , malathion standard - malathion standard-100mg crm , methyl parathionstd - methyl parathionstd.-100mg crm , carbaryl standard - carbaryl (carbamate)std. 250mg crm , anilophos standard - anilophos std-100mg crm , chloropyripho standard - chloropyriphos std-250mg crm total quantity : 4981