1. Scope--This SAE Recommended Practice establishes a uniform test procedure for evaluating performance of operator enclosure pressurization systems for construction, general-purpose industrial, agricultural, forestry, and specialized mining machinery as categorized in SAE J1116 for off-road, self-propelled work machines.

1.1 Purpose--The purpose of this document is to outline a procedure which will provide a uniform measurement of operator enclosure pressurization.