Filter Media Testing
Drinking water can be treated in a number of ways to improve its microbiological, chemical, physical and aesthetic quality. One treatment process is to pass raw water through filter media. Filter media typically consists of a combination of high silica sand, high density sand, granular activated coal (anthracite), filter garnet and support gravel.
Testing is carried out when new treatment plants are constructed, existing plants are upgraded and also to check the media in the filter beds in operating plants is still within specification after a number of years of operation. The main reason for testing is to check the material is compliant with standards.
The testing of filter media is carried to the standard AWWA B100. The purpose of the standard is to provide acceptable criteria for specific media for drinking water purposes.
ALS Water Newcastle has performed filter media testing for over a decade and offers the full package of services typically required. Suites of analysis are established depending on customer requirements. The testing is carried out in accordance with an established quality system which is comparable to NATA ISO 17025.