D1933-03(2017) Standard Specification for Nitrogen Gas as an Electrical Insulating Material
D2225-20 Standard Test Methods for Silicone Liquids Used for Electrical Insulation
D2472-15(2023) Standard Specification for Sulfur Hexafluoride
- See also WK88093 proposed reapproval
- See also WK76945 proposed revision
D3283-98(2020) Standard Specification for Air as an Electrical Insulating Material
D4652-20 Standard Specification for Silicone Liquid Used for Electrical Insulation
- See also WK81903 proposed revision