Biological materials biohazardous

The classification of biological risk is defined by Ordinance 3.214/78 of the Ministry of Labor and Employment, in its regulatory standards and job security (Brasil, 2002). Biohazards are represented by bacteria, fungi, parasites, viruses, among others. It is known that occupational exposure to potentially contaminated biological materials constitute a serious risk to health professionals in their workplaces. 

The autoclaved chemical-biological waste can be managed as a chemical waste. After autoclaving, the biohazard markings on the container should be defaced or the material overpacked in a second container to indicate that the waste has been sterilized. 

Biological waste can be taken off-site by a contractor for treatment at their facilities. However, most facilities treat biological waste on site. Materials potentially contaminated with infectious materials are placed in biohazard bags in pans and these pans are treated with high temperature and steam in an autoclave. There are established protocols and procedures for doing this. It is important that no volatile organic solvent be included in this process, since this could lead to exposures or fires. 

Biohazard Biological or infectious material such as a microbiological pathogen (e.g., Salmonella). 

When used with biohazardous materials, centrifuge tubes, rotors, and accessories should be filled and opened in a biological safety cabinet (215). If centrifuging of biohazardous substances is to be performed outside a special containment cabinet, a sealed safety bucket or tube should be used (Figure 1.6). After the safety bucket or tube is filled and sealed, it should be considered potentially contaminated and should be wiped with a cloth soaked in disinfectant. Since some disinfectants are corrosive to centrifuge rotors and buckets, rinsing the rotor or bucket with clean water is desirable after an appropriate contact time in disinfectant has elapsed. 

Are equipment, containers, materials, or areas where biohazards are or could be present labeled with the biological hazard warning ... 

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