Final answer:
Implements must be thoroughly cleaned before immersion to ensure hygiene and proper functionality, especially in a laboratory setting. Sterilization is not necessary for all items and is determined by the intended use of the item, aiming for an appropriate level of cleanliness without degrading quality or causing harm.
Step-by-step explanation:
All implements must be thoroughly cleaned before immersion. This is essential to maintain cleanliness and hygiene, especially in a laboratory setting where microscopes and other equipment are used. Cleaning processes vary depending on the purpose of the item and the level of cleanliness required. Items like optical components may need to be cleaned with materials such as lens paper and disposed of correctly after a single use to prevent surface scratches from accumulated debris. Conversely, certain cleaning applications allow for repeated use until the item is no longer functional.
It's important to recognize that not all items need to be sterilized. Sterilization requires intense cleaning protocols that might degrade the quality of the item or be harmful to users. For instance, microscope lenses should be cleaned with lens paper before and after use, and specifically after using immersion oil. Additionally, any accidental transfer of oil from other lenses should be cleaned off to prevent contamination. When the microscope is not in use, it should be covered or stored properly to limit exposure to contaminants.
While sterilizing everything might seem like a safe practice, it is usually impractical and sometimes can be dangerous. The item's intended use should dictate the method and extent of cleaning. The aim is to ensure items are "clean enough" for their specific application, balancing effectiveness against potential adverse effects of aggressive cleaning methods.