Description EESS0005GB - 5 Gallon Stainless Steel Test Measure The Seraphin® Series E test measure is manufactured of type 300 stainless steel. It is available in any capacity from 5 liters (1 US Gallon) to 40 liters (10 US Gallons). Typical sizes are listed in the specification sheet, however custom capacities are available. Seraphin® no longer manufactures terneplate test measures (see news and events). Our hand held measures provide a true standard of comparison for verifying the metered output of liquid dispensing equipment. They are ideally suited.