Certified Reference Standards

CERTIFIED REFERENCE STANDARDS FOR PETROLEUM, PHARMA, INORGANIC, INSECTICIDES, PCB,PAH, FOOD, OIL, ASTM, SOIL , COAL/COKE AND CEMENTS ... CERTIFIED REFERENCE STANDARDS FOR METALS CHNS CONSUMABLE AND ACCESSORIES XRF THIN FILMS AND OTHER CONSUMABLES SAMPLE PREPARATION UNIT FOR ICP, AAS AND XRF HPLC /GC , COLUMNS ,VIALS, LAMPS, SYRINGES, ICP, AAS CONSUMABLES AND OTHER ACCESSORIES ,