ISO 16889:2022, SAE J1299:2008
Dirt Holding Capacity Planning Estimator
Planning-level estimator for filter element dirt holding capacity and resulting service interval. Uses published media capacity ranges from SAE J1299 and ISO 16889 Annex C. Intended for early-stage filter selection and maintenance planning — not a substitute for ISO 16889 multipass testing.
FORMULA
VARIABLES
ASSUMPTIONS
· Media capacity ranges (g/m²) assume ISO 12103-1 A2 Fine Test Dust as the contaminant.
· Real-world contaminant composition differs from ISO FTD, which alters actual DHC.
· The estimate uses the midpoint of the media capacity range; actual values vary by element design.
LIMITATIONS
· Planning estimate only — ISO 16889 multipass testing is required for engineering specifications and warranty statements.
· Does not account for fluid bypass during high viscosity cold-start conditions.
· Media area must be estimated from element geometry — manufacturer data preferred.
· C_in (ingestion rate) must be measured or estimated from SAE J1299 environmental tables.
CALCULATOR
RELATED STANDARDS
iso-16889 →RELATED TECHNOLOGIES
MACROCORE™
SYNTRAX™
DURATECH™
VALIDATION: SAE J1299:2008 Annex B (media capacity ranges); external manufacturer Technical Bulletin F110074 (filter media specifications); Parker Hannifin Filter Element Engineering Guide (HY-L0022). · SOURCE: ISO 16889:2022 and SAE J1299:2008 · STATUS: VALIDATED