For particle and gravimetric analyses such as sediment testing of coolants and machine oils, nylon membrane filters are often utilized due to superior strength, chemical compatibility, and lot-to-lot consistency. Filters with 10 and 20 µm pore size ratings offer fast flow combined with consistent retention and are recommended in GMW16037: Test Method to Quantify Cleanliness of Engine and Transmission Components.1 Unfortunately, these filters have recently become more difficult to source, as some manufacturers have discontinued 10 and 20 µm rated nylon membranes. To address the market need for 10 and 20 µm rated nylon membrane filters, Sterlitech is introducing our new Nylon Cleanliness Test Filters.
These filters are specifically designed for cleanliness testing in the