EPA Standards - ILM05.2 & ILM05.3

The inorganic statement of work (SOW), ILM05.2, released in 2001, provided methodological details on the determination of various parameters including inorganic analytes using techniques such as atomic absorption spectrophotometry (AAS), inductively coupled plasma atomic emission spectrometry (ICP-AES), and inductively coupled plasma mass spectrometry (ICP-MS). Recently, this SOW was superseded by ILM05.3, which clarified and streamlined several sections of the methodology.

ILM05.3 is the inorganic SOW that defines the analytical procedure for determination of metal contaminants in water, soil, sludge, sediments, and various solid wastes found at potentially hazardous contaminated or suspected contaminated sites. Samples are digested and the solutions analyzed for 16 analytes on the ICP-MS target analyte list (TAL): antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, lead, manganese, nickel, selenium, silver, thallium, vanadium, and zinc.

Standards for ILM05.2 & ILM05.3 are designed for use with ICP-OES.