SAE J1756-2026 Determination of the Fogging Characteristics of Interior Automotive Materials

This stabilized SAE recommended practice defines photometric and gravimetric methods for measuring fog deposits produced by interior automotive materials.

SAE J1756™ APR2026 is a stabilized Surface Vehicle Recommended Practice for determining the fogging characteristics of interior materials used in automobiles and other vehicles. It describes a photometric method that measures light-scattering deposits on glass and a gravimetric method that measures fog residue collected on aluminum foil. The document covers scope, references, definitions, required equipment, cleaning procedures, specimen preparation and conditioning, test procedures, calculations, data reporting, and related equipment resources. It supersedes SAE J1756 AUG2006 and was stabilized by the SAE Textile and Flexible Plastics Committee in April 2026.

Application Scope: Suitable for automotive material suppliers, vehicle manufacturers, component engineers, laboratories, and quality teams evaluating fogging performance of interior plastics, textiles, flexible materials, coatings, powders, pastes, liquids, and related components.