The material is a polycation meaning that it is permanently charged.  It will interact with such lower life forms and kill them by stress.

In safe workplaces, you must consult the Workplace Hazardous Materials Information System (WHMIS)  or SIMDUT in french for every media,

For stains you have to check for every ingredient if you are preparing your stains manually. for examples: Gram or Zeihl-Neelsen stains, there is fuchin, acid, alcohol, in other protocols there is phenol that are toxic, you must handel Under chemical hoods. and wear personnal protection equipments. Or simply consult your biosafty and security officer.

If you are working with microbes or inoculated media Biosafety is a crucial concern.

thanks a lot Hafid, Bhavin and J.M

I agree with Easow's suggestion as a scientist you need to practice Good Clinical Laboratory Practice. Equally important is to read the Material Safety Data Sheet. Stay safe!!  

While manipulating any microorganism, you should verify the biosafety level in which it is. For example, Staphylococcus aureus is considered a level 2 pathogen. Knowing this you need to manipulate cultures of this microorganism in a specific way (laminar flow hood, gloves etc...) guidelines are available to guide you with your manipulations of microorganisms.

When it comes to chemicals, the SIMDUT chart provided with the chemical is the best tool at your disposal to take precautions. In fact, everything you need to know about the storage, manipulation and dispensing of the chemical can be found on there. 

Hope this helps you ! Have a good day ! 

You should have to follow GLP . 

If you want to exposure of media or other material then you have to follow MSDS material Safety Data Sheet.

You have to autoclave you media and other material then you can discard in STP plant or you can ignite in ignite Chamber