7/28/2019 Proper Handling of Materials in a Clean Room

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Proper Handling of Materials

The following suggestions should be considered when handling materials within a cleanroom:

1. Cleanroom wipers that have low concentration of contamination should be used. The exact typeof wiper that is selected will depend on the financial budget and what is being produced in the

cleanroom. It will also be necessary to decide how often a wipe should be used before being

discarded.

2. The movement of materials between the inside and outside of a cleanroom should beminimized. Every time a product moves out of the cleanroom there is a high possibility of it

being contaminated in the lessclean area, and this contamination being brought back when it

reenters. It is best to store products in a suitable clean area within the cleanroom, or in an

adjoining clean area.

3. It is normal to find that great care has been taken to ensure that a product is not contaminatedduring its manipulation stages. However, after that, it can often be forgotten and left out in the

cleanroom to gather dust. Products that are susceptible to contamination should therefore be

kept in closed cabinets, containers, unidirectional flow benches, or isolators. If the airflow in the

cleanroom is unidirectional, storage racks of the type that allow air to flow through are a good

choice. Materials should not be left standing on the floor.

4. Waste material should be collected frequently into easily identified containers and removedfrequently from the cleanroom.

5. Cleanrooms should be correctly cleaned (and disinfected if required)6. The cleanroom must be kept neat and tidy. If it is not tidy, it cannot be kept clean.