A set of five glass conformance filters for checking the PFXi 880, 950 and 995 instruments in Saybolt scale. NOT FOR USE with the PFXi 195.
Conformance filters are assigned a nominal value and the company always endeavours to match this value as closely as possible. On occasion, because of the unique manner of the glass making process, it may not be possible to match the requested values exactly. The values achieved and the performance tolerances expected will, of course, always be reported.