The Deflection Limiting Volume (DLV). It is an orthogonal approximation of a large operator in the normal seated position. PURPOSE: To establish limits on deflection permissible during laboratory evaluations of ROPS and FOPS as defined in J1040 and J231.
1973SAE J397A-1973 DEFLECTION LIMITING VOLUME FOR LABORATORY EVALUATION OF ROLLOVER PROTECTIVE STRUCTURES (ROPS) AND FALLING OBJECT PROTECTIVE STRUCTURES (FOPS) OF CONSTRUCTION AND INDUSTRIAL VEHICLES
1972SAE J397A-1972 CRITICAL ZONE FOR LABORATORY EVALUATION OF ROLL OVER PROTECTIVE STRUCTURES (ROPS) AND FALLING OBJECT PROTECTIVE STRUCTURES (FOPS) OF CONSTRUCTION AND INDUSTRIAL VEHICLES
1969SAE J397-1969 Critical Zone-characteristics and dimensions for operators of construction and Industrial Machinery