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A study dedicated to exploring and better understanding the way people think and feel about the products they make or consume, the role this plays in shaping global trade and the impact this has on how products are conceived, constructed, sold and delivered.
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UL is proud to share New Science, a powerful initiative showcasing important ways we are making our world safer through fundamental discovery, testing methodologies, software and standards across three initial areas.
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UL is a global independent safety science company offering expertise across five key strategic businesses.

We offer expertise across many industries to enable our customers to succeed in the global marketplace.

Catalog of Standards
Understanding Standards
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Search for Standards and Outlines by keyword or filter by approvals or publish dates.

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Learn how UL Standards function as a benchmark that enables consumers and businesses to feel confident about the products and services they purchase.

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UL is always looking for industry, academic and end-user experts to help develop our consensus-based standards.

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Applying the UL Gas-Fired Mark

The UL Gas-Fired Mark communicates to customers and regulators a product's compliance to nationally recognized gas standards. It is a symbol of the strength and acceptance of the UL brand and a legacy of consumer confidence.

UL's experienced staff will evaluate the product to the applicable standard to meet regulatory, market or customer requirements including:

  • UL Standards
  • ANSI Z21/CSA and Z83/CSA series gas standards
  • EN standards

Comprehensive product coverage

UL evaluates a range of gas-fired equipment. For products requiring multiple certifications, UL can combine delivery of certifications to match a manufacturer's needs including gas-fired, oil-fired, solid fuel, electrical, food service equipment, and sanitation and water testing to national and international requirements. UL's expertise covers the evaluation of a wide range of gas-fired products.

Residential

  • Clothes dryers
  • Ovens and ranges
  • Water heaters and boilers
  • Hearth products
  • Furnaces
  • Outdoor cooking appliances
  • Gas-fired camp equipment
  • Gas illuminating appliances
  • Vented and unvented room heaters
  • Decorative fireplaces
  • Patio heaters

Commercial and industrial

  • Baking and roasting ovens
  • Food warmers
  • Ranges and broilers
  • Fryers
  • Direct-fired make-up air heaters
  • Central furnaces
  • Duct furnaces
  • Unit heaters
  • Water heaters
  • Industrial air heaters
  • Construction heaters
  • Boilers