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2. Crude Protein-Combustion. Standard Method 46-30. Approved Methods of the AACC,2000
3. Annual Book of the ASTM Standards. ASTM Method D882-12: Standard Test Method for Tensile Properties of Thin Plastic Sheeting,2012
4. Annual Book of the ASTM Standards. ASTM D1653-13: Standard Test Methods for Water Vapor Transmission of Organic Coating Films,2013
5. Annual Book of the ASTM Standards. ASTM F2622-08: Standard Test Method for Oxygen Gas Transmission Rate T;American Society for Testing and Materials (ASTM),2013