ASTM RR-E28-1001 1982
E0140-金屬標準硬度換算表布氏硬度、維氏硬度、洛氏硬度、表面硬度、努氏硬度、肖氏硬度、里氏硬度之間的關系
E0140-Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness