ANSI/ASSE/AIHA Z9.4-2011
The rules and principles establishedin this standard are intended toprotect employees engaged or working inthe vicinity of abrasive blasting in fixedlocation enclosures from: 1) significantrisk of health impairment; and 2) physicalinjury due to explosions, high velocityjets of abrasive-blasting particles, ormoving equipment involved in abrasiveblasting.