Qualitative Filter Paper, 306 Grade, 55mm -320mm

Standard Qualitative Filter Papers are used for low gravity, or quadrant-folded applications. They have a higher level of α- cellulose than other filter papers. This means that they will weaken when the papers are introduced to water. We do not recommend Standard Qualitative Filter Papers if wet handling or vacuum work is necessary. In routine quadrant-folded applications the underlying strength of standard (untreated) grades does not present an issue.

Grade 306: is a slow-filtering qualitative paper that offers similar fine particle retention to Grade 301, with an even slower filtration speed. This combination makes it suitable for applications where maximum clarity and retention are required, even at the expense of filtration time. Grade 306 is a dependable choice for general laboratory use involving fine precipitate collection and sample clarification.

Application: Fine Precipitate Filtration, Sample Clarification, General Laboratory Use

Key Features

Qualitative Analysis: Designed for use in identifying and separating components in complex mixtures.​

Slow Filtration Speed: Slower than Grade 301, providing enhanced clarity and precision in filtration.​

Fine Particle Retention: Maintains strong retention capacity for fine particulates and light precipitates.​

Reliable for Sensitive Samples: Ideal when sample purity is a priority and extended filtration time is acceptable.​

General Use: Suitable for a wide range of standard lab filtration tasks requiring high clarity.

• Fine Precipitate Filtering
• Sample Clarification

Available Grades

HS Code / Commodity Code: 4823209000