SDWA Corrosivity (Langlier Index) Back Catalog number: 55121 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679459 4,4'-DDE, 100 µg/ml, Methanol, 1ml Price on request 31331 Isopropyl benzene Price on request 678009 Terbufos-sulfone, 100 µg/ml, Toluene, 1ml Price on request