ASTM D5222-23
Standard Specification for Less Flammable High Molecular Weight Hydrocarbon Mineral Electrical Insulating Liquids

Standard No.

ASTM D5222-23

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D5222-23

Scope

1.1 This specification describes a less flammable mineral electrical insulating liquid, for use as a dielectric and cooling medium in new and existing power and distribution electrical apparatus, such as transformers and switchgear. 1.2 Less flammable insulating liquid differs from conventional mineral insulating liquid by possessing a fire-point of at least 300 °C. This property is necessary in order to comply with certain application requirements of the National Electrical Code (Article 450-23) or other agencies. The material discussed in this specification is miscible with other petroleum based insulating liquids. Mixing less flammable liquids with lower fire point hydrocarbon insulating liquids (for example, Specification D3487 mineral liquid) may result in fire points of less than 300 °C. 1.3 This specification is intended to define a less flammable electrical mineral insulating liquid that is compatible with typical material of construction of existing apparatus and will satisfactorily maintain its functional characteristic in this application. The material described in this specification may not be miscible with electrical insulating liquids of nonpetroleum origin. The user should contact the manufacturer of the less flammable insulating liquid for guidance in this respect. 1.4 This specification applies only to new electrical insulating liquid as received prior to any processing. Information on in-service maintenance testing is available in appropriate guides.2 The user should contact the manufacturers of the equipment or liquid if questions of recommended characteristics or maintenance procedures arise. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D5222-23 Referenced Document

• ASTM D117 Standard Guide for Sampling, Test Methods, Specifications, and Guide for Electrical Insulating Oils of Petroleum Origin
• ASTM D1275 Standard Test Method for Corrosive Sulfur in Electrical Insulating Oils
• ASTM D1298 Standard Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method
• ASTM D1500 Standard Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
• ASTM D1524 Standard Test Method for Visual Examination of Used Electrical Insulating Oils of Petroleum Origin in the Field
• ASTM D1533 Standard Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration*， 2024-04-21 Update
• ASTM D1816 Standard Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
• ASTM D2112 Standard Test Method for Oxidation Stability of Inhibited Mineral Insulating Oil by Pressure Vessel*， 2023-12-01 Update
• ASTM D2300 Standard Test Method for Gassing of Electrical Insulating Liquids Under Electrical Stress and Ionization (Modified Pirelli Method)*， 2024-04-21 Update
• ASTM D2440 Standard Test Method for Oxidation Stability of Mineral Insulating Oil
• ASTM D2668 Standard Test Method for 2,6-Ditertiary-Butyl Para Cresol and 2,6-Ditertiary-Butyl Phenol in Electrical Insulating Oil by Infrared Absorption
• ASTM D2864 Standard Terminology Relating to Electrical Insulating Liquids and Gases
• ASTM D3487 Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
• ASTM D4052 Standard Test Method for Density and Relative Density of Liquids by Digital Density Meter
• ASTM D4059 Standard Test Method for Analysis of Polychlorinated Biphenyls in Insulating Liquids by Gas Chromatography
• ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
• ASTM D4768 Standard Test Method for Analysis of 2,6-Ditertiary-Butyl Para-Cresol and 2,6-Ditertiary- Butyl Phenol in Insulating Liquids by Gas Chromatography
• ASTM D5949 Standard Test Method for Pour Point of Petroleum Products (Automatic Pressure Pulsing Method)
• ASTM D5950 Standard Test Method for Pour Point of Petroleum Products (Automatic Tilt Method)
• ASTM D664 Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration
• ASTM D7042 Standard Test Method for Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity)
• ASTM D92 Standard Test Method for Flash and Fire Points by Cleveland Open Cup
• ASTM D923 Standard Practices for Sampling Electrical Insulating Liquids
• ASTM D924 Standard Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
• ASTM D97 Standard Test Method for Pour Point of Petroleum Products
• ASTM D971 Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method
• ASTM D974 Standard Test Method for Acid and Base Number by Color-Indicator Titration

ASTM D5222-23 history

• 2023 ASTM D5222-23 Standard Specification for Less Flammable High Molecular Weight Hydrocarbon Mineral Electrical Insulating Liquids
• 2016 ASTM D5222-16 Standard Specification for High Fire-Point Mineral Electrical Insulating Oils
• 2008 ASTM D5222-08 Standard Specification for High Fire-Point Mineral Electrical Insulating Oils
• 2000 ASTM D5222-00 Standard Specification for High Fire-Point Mineral Electrical Insulating Oils