Product Announcement: Nylon Filters for Cleanliness Testing

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 automotive and aerospace industries. They have virtually the same water bubble point specifications, and consequently very similar retention, as the discontinued 10 µm and 20µm rated nylon membrane filters. They also offer comparable water flow in most applications, which is typically superior to water flow of alternative 10 µm rated filters of different membrane materials (Table 1). Users have compared the Nylon Sediment Test Filters side-by-side with 10 µm rated nylon membrane filters for sediment testing and have observed no appreciable difference in test results.

Table 1. Comparison of water flow rate between various sediment testing membranes. 

Please check out the product page or contact us with any questions regarding nylon membrane filters.

References:

1) Test Method to Quantify Cleanliness of Engine and Transmission Components. (2017). General Motors Worldwide (GMW), 3rd Edition, July 2017, pp.1-10.