AOAC (Association of Official Analytical Chemists)

 

Method Instruments Constituents Materials
990.03 FP928, FP828, FP628 Crude Protein Animal Feed
992.15 FP928, FP828, FP628  Crude Protein Meat, Meat Products, and Petfoods
992.23 FP928, FP828, FP628 Crude Protein  Cereal Grain and Oil Seed Products
993.13 FP928, FP828, FP628 Nitrogen Fertilizer
997.09 FP928, FP828, FP628 Nitrogen/
Protein
Beer, Wort, and Brewing Grains
(Total Protein by Calculation)
2017.08 S832, 628 S Module Sulfur Fertilizer