This SAE Recommended Practice defines a simplified laboratory impact test procedure for evaluating characteristics of automotive instrument panels under simulated occupant impact conditions. Head mass@ head form diameter@ location and attitude of impact velocity@ and head impact velocity are defined for this test.
SAE J921-1965 history
1981SAE J921-1981 Motor Vehicle Instrument Panel Laboratory Impact Test Procedure-Head Area
1971SAE J921B-1971 MOTOR VEHICLE INSTRUMENT PANEL LABORATORY IMPACT TEST PROCEDURES - HEAD AREA
1967SAE J921A-1967 INSTRUMENT PANEL LABORATORY IMPACT TEST PROCEDURE—HEAD AREA
1965SAE J921-1965 INSTRUMENT PANEL LABORATORY IMPACT TEST PROCEDURES