filtreringsklasse

Filtreringsklass is a term used in Scandinavian languages to denote a category or level of filtration performance assigned to a filter or filtration system. It serves as a communicative label indicating how effectively the device removes contaminants under defined conditions and whether it meets regulatory or contractual requirements. The actual scales and labels vary by industry and standard; there is no universal filtreringsklass across all contexts.

Determination and meaning: Filtreringsklasser are typically established through standardized testing by accredited laboratories. Common criteria include the percentage of particles removed in a specified size range, the pressure drop and flow rate, the life expectancy of the filter, and its chemical or material compatibility. The resulting class is often accompanied by reference standards, test conditions, and sometimes certification marks.

Contexts and examples: In air filtration for buildings and clean rooms, the class may align with European or international standards that specify particle-removal efficiency for defined size ranges, such as HEPA or ULPA categories. In consumer HVAC or automotive filters, classes may be described with numerical ratings or country-specific scales. In drinking water and process water treatment, filtration classes reflect the achieved level of turbidity and contaminant removal after the filtration stage. In laboratory and medical settings, filters are classified by pore size and sterility considerations, such as sterile filtration with defined pore thresholds.

Because standards differ between regions and sectors, it is important to reference the applicable standard or specification when interpreting a filtreringsklass.