This test method is a widely used analytical procedure for the quantitative determination of trace metals and elements in various water and wastewater samples using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). This method is recognized for its high sensitivity and precision, allowing for the detection of metals at ultra-trace levels. This test method quantifies aluminum, antimony, arsenic, barius, beryllium, boron, cadmium, chromium, cobalt, copper, lead, manganese, molybdenum, nickel, selenium, silver, strontium, thallium, vanadium, and zinc.