Ashless Filter Papers - 125MM - Quantitative Ashless quantitative and qualitative filter papers provide laboratory grade filtration for extraction systems and are specifically used in combination with a Buchner funnel to remove fats, waxes and any other unwanted contaminants from your solution. These filter papers are used in the pre-processing stage of short path distillation to clean up the material prior to processing. Key Features: ISO 9001 Approved Manufactured from alpha-cellulose and cotton linters High Purity and low background Consistent performance Low ashless content: | BVV Ashless Filter Papers - 125MM - Quantitative