This SAE Recommended Practice establishes a uniform test procedure for determining performance levels of operator enclosure panel type air filters on off-road, self-propelled work machines used in construction, general-purpose industrial, agriculture, and forestry as defined in SAE J1116 and equipped with an operator enclosure with a powered fresh air system.
SAE J1533-1993 Referenced Document
SAE J1116-1986 Categories of Off-Road Self-Propelled Work Machines@ Recommended Practice
SAE J726-1993 AIR CLEANER TEST CODE*, 1993-06-01 Update