The quantitative filter papers or ashless filter papers are made with 100% high quality cotton linters fibers which go through a severe chemical process.
They have been washed out with a specific acid treatment and finally cleaned from impurities with demineralized water. This process allows to reach an ash content of 0.01%. These papers are used to count during demanding analysis.
filtraTECH ‘s grades: QT41 | QT42 | QT43 | QT44 | QT45 | QT49
Available in sheets (F), plain discs (A) or folded discs (P).
Those grades are made with high purity cotton linters fibres and cellulose fibres (ash content of 0.06%). The qualitative filter papers allow to determinate with great precision the nature of the filtered solutions and to check the composition of the samples. They offer better resistance to chemicals and moisture compared to standard filters and thus can be used for food, beverages, environmental analysis (air, soil ...).
filtraTECH 's grades: QL01 | QL02 | QL03 | QL04 | QL05 | QL08 Available in sheets (F), plain discs (A) or folded discs (P).
The standard filter papers are made with 100% cellulose and could have various applications in hospital/medical works, in research laboratories, in schools/universities, in chemical, pharmaceutical, cosmetic, water treatment or food industries...
filtraTECH‘s grades: ST60 | ST61 | ST62 | ST63 | ST64 | ST65 | ST67
Available in plain sheets (F), plain discs (A) or folded discs (P).
In this category you will find the filter papers which are used in particular in some industries or for some restricted applications.
Our filtration accessories can be used with all our filter papers, glass or quartz microfibre filters.