The Accudisk™ Grade TSS/FVS filters are washed and rinsed under vacuum with three 20mL aliquots of deionized water then dried at 105°C in a laboratory oven for 1 hour then cooled and desiccated.  This process is repeated for two cycles, as per SM2540.  These filters are a fine porosity, fast flow rate, with a 1.5μm size particle retention. Ideally suited for determination of Total Suspended Solids (TSS).  This material is compliant with the requirements of Standard Method 2540C, 2540D & 2540E and EPA Method 160.2.