For example, Table 2-39 of Chapter Two lists testing options for various metals, including arsenic, cadmium, chromium, and lead. Chapter Two of "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods (SW-846)" offers guidance on selecting appropriate test methods for specific constituents in different matrices, such as used oil. Instead of a TCLP, a totals analysis should be performed on the used oil. This attribute of the used oil is irrelevant if the used oil will be burned for energy recovery rather than land disposed. The TCLP was developed to simulate leaching in a landfill, addressing the degree of mobility of waste streams (61 FR 11798, 11809 March 29, 1990). When determining the levels of arsenic, cadmium, chromium, and lead in used oil that will be burned for energy recovery, the TCLP is not the appropriate test. Should a used oil marketer use the Toxicity Characteristic Leaching Procedure (TCLP) to determine whether used oil meets the specification levels for arsenic, cadmium, chromium and lead? Should a used oil marketer use SW-846 Method 1311 (TCLP) to determine whether used oil meets the specification levels for arsenic, cadmium, chromium and lead?
#Method spike definition serial#
For SW-846 Method 6020A, is the serial dilution to be performed on the sample or is the post-digestion spiked sample to be serially diluted?.What are the filtration and headspace requirements for SW-846 Method 6850?.Is SW-846 Method 7199 intended for the determination of dissolved or total hexavalent chromium?.Can SW-846 Method 3005A be used for mercury analysis by Method 6020A, Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)?.How do you interpret the mass calibration criteria for Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) as described in SW-846 Method 6020A?.Extraction fluids for SW-846 Method 1312 (SPLP) analyses of samples that may contain cyanide.Does ORCR observe the same holding time and preservations for SW-846 Method 7199 for hexavalent chromium allowed under 40 CFR 136?.SW-846 Test Methods 9012B and 9010C and compliance with 40 CFR 268.40 footnote 7.What is the basis for the reduction from 10% to 1% weight loss value for discarding samples from SW-846 Methods 30 to Methods 3015A and 3051A?.Is SW-846 Method 3050B appropriate for the digestion of coal ash?.What is the holding time for soil samples analyzed for hexavalent chromium by SW-846 Method 7196A?.
Can digests from SW-846 Methods 3015A and 3051A be used directly on an automated mercury analyzer without any further sample treatment?.What EPA SW-846 test methods are available for use in detecting the presence of mercury?.Should a used oil marketer use SW-846 Method 1311 (TCLP) to determine whether used oil meets the specification levels for arsenic, cadmium, chromium and lead?.
The questions and responses for this category are listed below. EPA received many questions about hazardous waste test methods.
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