Copies of the publications listed above can be obtained by writing to the appropriate addresses listed in Contacts . Top Chemical Test Methods Chemical testing can be done on a representative sample of a suspected dangerous waste with unknown components. Copies of the publications listed above can be obtained by writing to the appropriate addresses listed in Contacts . Top Representative Samples Dangerous Waste testing regulations do not regulate how many waste samples to take or where to take them as long as one representative sample is done of each waste to be tested. Refer to Dangerous Waste Samples Summary for more information about representative and composite samples, field sampling and links to suggested screening and sampling plans.
Knowledge alone can be enough to designate a waste.
Knowledge about a waste also limits the number of tests that might be done. Refer to Designation Using Knowledge for more information. Other regulatory agencies have developed guidelines for sampling and testing of lead-based paint in residential dust, paint and soil. Lead paint abatement screening plans and devices such as the XRF scanner can provide knowledge to direct dangerous waste designation. Refer to Sampling and Testing for Residential Lead Abatement for basic information about EPA and HUD requirements.