Conductance @ 20°C [50 µmho/cm] Back Catalog number: 50222 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98245 EPA Method 418.1 - TPH IR Standard Price on request 50753 Custom Metals Mix Price on request 20016 CLP Semi-Volatile Base/Neutral Surrogate Standard Price on request