FDA, Elemental Analysis Manual for Food and Related Products, (eff. 02/2020), Method 4.7
USDA: FSIS, Chemistry Laboratory Guidebook, Method Number CLG-TM3 (eff. 11/05/2018)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 3000 Series, Method 3005A (eff. 07/1992)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 3000 Series, Method 3015A (eff. 02/2007)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 3000 Series, Method 3031 (eff. 12/1996)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 3000 Series, Method 3040A (eff. 12/1996)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 3000 Series, Method 3050B (eff. 12/1996)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 6000 Series, Method 6010D (eff. 07/2018)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 6000 Series, Method 6020B (eff. 07/2014)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 7000 Series, Method 7000B (eff. 02/2007)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 7000 Series, Method 7010 (eff. 02/2007)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 7000 Series, Method 7061A (eff. 07/1992)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 7000 Series, Method 7470A (eff. 09/1994)
EPA Testing Methods for Evaluating Solid Waste: Physical/Chemical Methods Compendium (SW-846) 7000 Series, Method 7471B (eff. 02/2007)
