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M "Prior to processing the cans"means after the cans • Aerosol cans are designed to be used and become waste,but before they are processed to stored in small quantities at temperatures remove the contents. "Prior to shipping the cans of 130 degrees Fahrenheit or less offsite"means before the cans are processed and/or shipped offsite. • Aerosol cans that are damaged,stored in direct sunlight or stored at high temperatures can explode. 6. Wlbat is considered to be sufficient ventilation to • Hazardous waste residues drained from the avoid formation of an explosive atmosphere? cans must be properly managed • Containers must be compatible with their This is best determined by calculating the airflow contents. This includes the contents of the in the room or area where cans are being processed universal waste aerosol cans. and factoring in the releases from the unit. These calculations are commonly performed to design • Containers must be able to withstand the systems and work areas that allow businesses to vapor pressure of their contents at the meet OSHA and CalOSHA exposure limits. highest temperature that will be reached in Many other businesses regularly perform such storage and transportation. calculations to meet the fire code and insurance • Containers must meet the United States requirements when they are using flammable Department of Transportation shipment solvents with low vapor pressure or flammable standards established for containers of gases. similar materials. • Containers must be able to withstand • Note that this standard is most easily shocks and impacts expected during enforced when the facility fails to meet it; handling and transportation. that is,when the facility fails to keep the . Containers that bulge,rupture,or leak atmosphere around the operation below during accumulation or transportation,are the lower explosive limit (LEL) as inappropriate containers. measured by a flammable gas meter. 8. What is a surface considered "sufficiently impervious 7. What type of container would be considered and bermed to contain leaks and spills'? acceptably designed, built, and maintained to untbstand pressure reasonably expected during storage and transportation? Impervious means that the liquid will not soak through the surface. This determination must be based on the material to be contained. A wooden The statutory standard addresses containers that are enclosure is obviously not in compliance. In many used to accumulate universal waste cans and cases,unsealed concrete may not be appropriate containers that are used to accumulate hazardous due to its porosity. Bermed means that a berm waste residuals from processing universal waste completely surrounds the area where a leak can take aerosol cans. It is the generator's duty to determine place. The statute does not address the volume that the containers meet this standard. Factors to that must be contained,but is best interpreted as consider include: having the capacity to hold the contents of the largest container.