https://www.epa.gov/hw-sw846/sw-846-test-method-7000b-flame-atomic-absorption-spectrophotometry
SW-846 Test Method 7000B: Flame Atomic Absorption Spectrophotometry | US EPA
Oct 23, 2025 - method for determining metals in solution, applicable to ground water, aqueous samples, extracts, industrial wastes, soils, sludges, sediments, etc.
test methodatomic absorptionsw