1382 ppm TDS solution (230mL) Back Catalog number: MA9062 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended 40024 EPA Method 630/630.1 Stock Solution #1 Price on request 675029 Sodium 4-n-octylbenzenesulfonate, 100 µg/ml, Meth Price on request 53095 Alternate Metals Kit Price on request