7.4 Mandatory signs
Mandatory signs are round. White symbol on a blue background. Usually accompanied by an explanatory text. Examples are listed below.
![]() | Eye protection must be worn |
![]() | Hearing protection must be worn |
![]() | Respiratory protection must be worn |
![]() | Face protection must be worn |
![]() | Protective clothing must be worn |
![]() | Fire door - Keep closed |
![]() | Secure gas cylinders of all sizes, whether empty or full |