Individually preweighed filter papers, preweighed in compliance with Standard Methods Total Suspended Solids procedure.
Each in a planchet with tare weight listed. Each tare weight meets Standard Methods specifications.
(Please note the 47mm size item is referenced in Hach methods as item code 2546100 or HH/25461-00 )
To help you choose the right filter for your application please click on the image below that will take you to the application guide for:
 There is also a link to the Cytiva Filter Paper Selector Guide