Phosphate as (PO4-3), 1000µg/ml in water, 100ml Back Catalog number: 54263 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 94129 Pesticide Standard Price on request 79411 2,4-D, butoxyethanol ester Price on request 81505 Dalapon methyl ester Price on request