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Flammable and Combustible Fluids Equipment Services

We can help you navigate the complex regulatory requirements for flammable and combustible fluids equipment. Whether you are a manufacturer, user or inspection authority, we can evaluate, test and certify your equipment.

Three pumps at a gas station.


We use the term gas and oil equipment to encompass more than 150 types of products intended for the handling and storage of flammable and combustible fluids. Having such a variety of possible product families can make it complicated to determine which specific requirements apply to you, how to interpret them, and where your product can be marketed.

Fortunately, we have the knowledge and expertise to evaluate, test and certify your gas and oil equipment in accordance with hundreds of U.S., Canadian, European and International Electrotechnical Commission (IEC) standards under the North American, IECEE (CB Scheme) and IECEx conformity assessment systems. 

For gas or oil-fired and solid fuel appliances typically found in the home, we provide comprehensive services as part of our Appliances and HVAC/R offering.


UL published its first gas and oil safety Standard in 1922, so we have a long history of understanding and addressing gas and oil safety issues. In fact, we are one of the most recognized and respected conformity assessment provider in the world for equipment associated with gasoline, fuel oils, compressed natural gas (CNG), liquefied petroleum gas (LPG), anhydrous ammonia (NH3), oxygen/fuel (oxy/fuel) gases and solvents. With extensive industry experience and expertise, we are available to assist manufacturers, users and inspection authorities with a variety of their gas and oil equipment needs.

Areas of expertise

UL provides testing and certification services for the following flammable and combustible fluids equipment:

  • CNG and gasoline dispensers and control equipment
  • Compressed gas gauges
  • Compressed gas manifolds
  • Compressed gas regulators
  • Electric valves and solenoids
  • Gasoline safety (jerrican) cans and flammable liquid storage cabinets
  • Hydrogen cells and stations
  • LP-gas and NH3 storage and transfer equipment
  • Oxy/fuel gas and LP-gas torches and flash arrestors
  • Solid fuel appliances
  • Storage of flammable fluids
  • Tanks and piping

Why UL

We drive global standards to continually advance and meet ever-evolving product safety, performance and interoperability needs. Our network of technical experts and state-of-the-art facilities, along with our long-standing relationships with regulatory authorities, partner laboratories and industry technical leaders, enables us to help you gain the compliance credentials you need to compete in a more complex global supply chain.

Single-source provider

Located around the world, our certification staff can help save you time and money with a single, local point of contact for your global certification needs.

Knowledge and speed

Our technical experts are versed in a variety of protection methods that translate into actionable business efficiencies. With a U.S. based certification officer (CO) on staff, and competent engineers to perform Quality Audits, we can help reduce your certification time.

Global market access 

We are an active participant and leader in the global standards writing process — not only do we understand the requirements, we helped develop them. In fact, we participate in more than 50 standards writing committees, including TC31 (International Electrotechnical Commission Explosive (IECEx)), Standards Technical Panel (STP) (North America), National Fire Protection Association (NFPA), American Petroleum Institute (API), the Bureau of Safety and Environmental Enforcement (BSEE) and Code of Federal Regulations (CFR).

Standard changes for zone 2 equipment

Standard changes for zone 2 equipment & how it will affect your business

Potentially explosive atmospheres requirements evolve continuously and keeping up to speed can be challenging.

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