KS C IEC 60641-3-1-2015(2020) Specification for pressboard and presspaper for electrical purposes-Part 3:Specifications for individual materials-Sheet 1:Requirements for pressboard, typesB.0.1, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B
2015KS C IEC 60641-3-1:2015 Specification for pressboard and presspaper for electrical purposes-Part 3:Specifications for individual materials-Sheet 1:Requirements for pressboard, typesB.0.1, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.6.1 and B.7.1
2003KS C IEC 60641-3-1:2003 Specification for pressboard and presspaper for electrical purposes-Part 3:Specifications for individual materials-Sheet 1:Requirements for pressboard, typesB.0.1, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.6.1 and B.7.1