처리 계통도
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- ※ 사전배출금지 : 폐액,폐시약은 배출자가 반드시 연구실 안전환경관리자에게 서류제출을 먼저 한뒤 직접 인수인계를 해야 하며,무단 배출된 폐기물들은 수거하지 않음
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Safety checkpoint
A hood should be frequently checked if it is operated well. At least twice a year, its wind speed should be checked by using a gauge. Simply, attach a tissue paper on a hood window
and check if it is well sucked in. A hood should have a proper face velocity to effectively extract toxic substances.- - Recommended wind velocity fpm(feet per minute)
70~100 fpm: For general use (slight toxic materials) / 150 fpm: For special use (very toxic materials such as carcinogens) - - Tissue paper, etc. should not be in a hood. If it is sucked into the hood, it may block the airflow inside the hood and the hood may not work properly.
- - Reagents should not be stored in a hood. If there are many reagents in the hood, the air does not well flow inside the hood.
- - As the hood chassis does not protect people from strong explosions, before an experiment with a risk of the explosions is conducted, the researcher should install a safety shield inside the hood.
- - A hood is not a place where waste is stored. After experiments, clean the hood.
- - Recommended wind velocity fpm(feet per minute)
