BTEX Standard Back Catalog number: 98418 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 56424 Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml Price on request C17945100-5ML m-Xylene, certified, 5ml Price on request 98735 Synthetic Pyrethroids, 1000µg/mL in EA, 1ml Price on request