The LaboCroma line of laboratory filtration products has always been synonymous with quality and reliability. Reproducibility and uniformity are maintained using only the highest quality raw material. Filters and filter membranes are tested for weight, thickness, air flow and mechanical strength. Special parameters such as particle retention, absorption rate, filtration performance, and surface characteristics can be measured as needed. Also available is the full range of prestigious Whatman (Cytiva) products , which represent the industry standard for high purity laboratory filtration.