What concentration of lead in an item makes it a hazardous waste?
The TCLP test uses a sample of the waste and a leaching solution (in a ratio of 1:20). After mixing the waste with the leaching solution, the leaching solution is tested for hazardous constituent concentration. If lead in the leaching solution is present at a concentration greater than or equal to 5 mg/l (or parts-per-million – ppm), the waste would be considered to be hazardous, and would be required to be managed as a hazardous waste. If the overall concentration of lead in the entire object is less than 100 ppm on a mass basis, then the object, when it has become a waste, would not fail the TC/TCLP. However, if the overall concentration of lead is greater than 100 ppm, the waste may or may not be RCRA hazardous since it is rare that all of the lead present in a waste will leach in the TCLP test. Please note that for the purposes of the TCLP test, the lead concentration of the entire object being discarded is measured, whereas for the CPSIA, total lead content by weight for any part
The TCLP test uses a sample of the waste and a leaching solution (in a ratio of 1:20). After mixing the waste with the leaching solution, the leaching solution is tested for hazardous constituent concentration. If lead in the leaching solution is present at a concentration greater than or equal to 5 mg/l (or parts-per-million – ppm), the waste would be considered to be hazardous, and would be required to be managed as a hazardous waste. If the overall concentration of lead in the entire object is less than 100 ppm on a mass basis, then the object, when it has become a waste, would not fail the TC/TCLP. However, if the overall concentration of lead is greater than 100 ppm, the waste may or may not be RCRA hazardous since it is rare that all of the lead present in a waste will leach in the TCLP test. Please note that for the purposes of the TCLP test, the lead concentration of the entire object being discarded is measured, whereas for the CPSIA, total lead content by weight for any part
