These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
They are used for routine analyses like clarification, determination of substances, but also as discs with a centre hole for technical applications.
Medium fast to slow rate of filtration. Used for extraction of solutions; sera; spices; general laboratory filtration.