CFR›Title 7›Subtitle B›Chapter I›Part 51›Subpart P›Subject Group Metric Conversion Table ContainsSection 51.1566CorpusDaily eCFRDisplayed edition2026-05-20Last updated2026-05-20 Sections 51.1566 § 51.1566 Metric conversion table. Previous Grades Grades Next Samples for Grade and Size Determination Samples for Grade and Size Determination