Category SAE Standards

The safety alert symbol—an equilateral triangle containing an exclamation mark—is a ubiquitous warning on heavy machinery. SAE J284‑2021, reaffirmed in October 2021, provides the recommended practice for designing and applying this symbol specifically for agricultural, construction, and industrial equipment. This…

This SAE standard specifies minimum performance and operating requirements for equipment designed to recover contaminated R-134a or R-1234yf refrigerant from mobile air conditioning (MAC) systems. Unlike recycling equipment, this recovery equipment cannot process the refrigerant for reuse. All recovered refrigerant…

🛠️ Note: this article focuses on engineering interpretation, not clause-by-clause translation. The SAE J2847/5 standard, published in October 2023, defines the communication requirements for plug-in electric vehicles (PEVs) to interact with customers for alternating current (AC) vehicle-to-load (V2L) and vehicle-to-vehicle…

Why Communication Protocols Matter for Wireless Power Transfer Wireless power transfer (WPT) for electric vehicles offers convenience and automation, but safe and efficient charging depends on robust communication between the vehicle (VA) and the ground assembly (GA). SAE J2847/6 defines…

SAE J2843-2019 defines the minimum requirements for equipment used to recover, recycle, and recharge R-1234yf refrigerant in mobile air-conditioning (MAC) systems. This standard, revised in July 2019, addresses the unique challenges of handling mildly flammable (ASHRAE Class 2L) refrigerants while…

🛠️ The SAE J2845-2021 standard establishes the minimum content requirements for training programs aimed at technicians who service mobile air conditioning (MAC) systems in passenger cars and light duty trucks. Proper training is essential to ensure that refrigerants—including R-12, R-134a,…

The 2023 revision of SAE J2847/3 marks a significant milestone in enabling plug-in electric vehicles (PEVs) to act as distributed energy resources (DERs). This recommended practice defines the communication requirements for vehicle-to-grid (V2G) and vehicle-to-home (V2H) functions, leveraging the IEEE…

As plug-in electric vehicles (PEVs) become more prevalent, ensuring reliable communication between the vehicle and the electric vehicle supply equipment (EVSE) during charging sessions is critical. SAE J2836/4 establishes the diagnostic use cases that define how faults are detected, communicated,…

From Standard M12 to HDM12: A Heavy-Duty Upgrade High-speed data communication is essential in modern heavy-duty vehicles and off-highway machinery. Systems operating above 10 Mbps require robust connector interfaces that can withstand harsh environments. SAE J2839-2020 addresses this need by…

SAE J2832-2019 covers stress relieved, electric resistance welded flash controlled single wall high strength low alloy steel tubing. With a minimum tensile strength of 690 MPa, this tubing is designed for high-pressure hydraulic lines and other applications that demand bending,…