Potential Mixed Waste Items
If you work with any of the material on this list, be aware that if the material becomes radioactive, it can be a mixed waste when discarded.
The following are common hazardous materials that may be found at SLAC. If these materials become radioactive they may become a mixed waste. Please note that this list is not all-inclusive. If you
are uncertain about a material and whether it could become a mixed waste, please call Joe Christy (x2823) or Olga Ligeti (x2610) for assistance.)
- Acids and Bases
- Asbestos (floor/ceiling tiles, gaskets, insulation, sheet linoleum, shingles. See SLAC
ES&H Manual, Chapter 27, "Asbestos")
- Batteries (dry cell, lead-acid, lithium, nickel-cadmium, wet cell)
- Brass and Bronze
- Cleaners, degreasers, and solvents (acetone, alcohol, Dynasolve®, methylene chloride, toluene, trichloroethane)
- Corrosion Inhibitors
- Corrosive liquids (pH < 2 or > 12.5)
- E-Waste (Audio/visual equipment, cathode ray tubes, CRTs, computers, telephones)
- Flammable liquids (flashpoint < 140°F)
- Fuels and fuel filters (diesel, gasoline)
- Laboratory Chemicals
- Lead (batteries, brass, bronze, circuit boards, E-waste, paint, shielding)
- Light bulbs: incandescent (metallic lead in bulb base) and fluorescent (possible mercury inside tube).
- Mercury (batteries, fluorescent lamps, pressure-vacuum gauges, switches, thermometers, thermostats)
- Oil and Grease (bearings, capacitors, fluorescent lamp ballasts, motors, oil contaminated rags/cloths, oil filters, oily water)
- Paint, Paint Chips, Painted Items, Paint Remover, Paint Thinner
- Poly Chlorinated Biphenyls, PCBs (capacitors, fluorescent lamp ballasts, transformers)
- Solder and soldered items (circuit boards, compact fluorescent lamps, copper piping, E-waste, incandescent lamps)
- Reactives (sulfide or cyanide bearing waste, water reactives)
- Any item containing or exposed to hazardous materials (rags, absorbents, empty containers).
- Any item containing one or more of the following toxic metals:
*Potentially hazardous if in a friable, powdered, or finely divided state.