VARIOUS BOARDS - IDENTITY MARKS IN FACTORY

Respected Senior,
I would like to ask you all, when any new company ,if we want to attach various safety Bord or any other sign board then what types of board are required /mandatory in any factory , we are in chemical industry

Exit, Emergency exit boards, Assembly point
Wash room entrance - For men only, For women only
Drinking water with symbol

Apart from what M.SRIKANTH suggested, you may also add Emergency telephone no., Company's HSE policy, Life saving Rules, Do & Don'ts, No smoking signage, Fire extinguisher locations, speed limits, traffic safety posters, PPEs board etc.
Regards,
Ms. Hansa Vyas