Regarding the procurement and routine maintenance of cleanroom consumables, storage must strictly adhere to standardized requirements for environmental control, categorized zoning, and expiration tracking to prevent premature degradation or contamination.
Remove outer standard packaging before transferring items to the sterile storage area; store separately from non-sterile consumables with clear labeling.
Determine expiration periods based on packaging material: 14 days for cotton cloth, 30 days for medical paper bags, and 180 days for non-woven fabric or crepe paper.
Rubber/Polymer consumables (e.g., cleanroom nitrile gloves, lint-free wipes)
Stack in their original packaging, positioned flat and upright; avoid heavy pressure that could compromise vacuum seals, cause sticking or deformation, or lead to shedding and aging.
Store unused items from opened packages in sealed cleanroom containers; do not leave them exposed to the general environment.
Filtration consumables (e.g., filter cartridges, air filters)
Do not tear the original factory-sealed plastic packaging of unused filter cartridges; avoid impacts or compression of the filter media during storage to prevent compromising filtration performance.
Temperature and Humidity Control: Maintain an ambient temperature of 18–26°C and a relative humidity of 45%–65% to prevent material degradation and microbial growth caused by high heat and humidity.
Physical Storage Standards: All storage racks for consumables must be positioned at least 20 cm above the floor, 5 cm away from walls, and 50 cm below the ceiling to isolate them from ground moisture and wall-borne contaminants.
Environmental Cleanliness Requirements: Limit the airborne bacterial count in the storage area to no more than 500 CFU/m³; operate air disinfection units at scheduled times daily; ensure effective dust-proof sealing; and protect materials from direct sunlight, ozone, and acidic or alkaline chemicals.
