Third-Party Factory Inspections
After a product has been tested and meets the criteria of product certification, the manufacturing facility must be inspected to qualify for listing and labeling. At Guardian, we provide third-party factory inspections to review production and ensure conformity of the product’s fire-rating requirements. Our on-site inspections also cover the independent selection of a product for any additional testing, as needed.
TYPE OF PRODUCTS
- Fire-resistant products
- Components and assemblies
- Building materials with surface-burning characteristics
- Record protection equipment
- Solid-fuel-burning heating appliances, including EPA audits
- Gas-burning equipment

STANDARDS TESTED
Our inspection methods and procedures adhere to the inspection accreditation standard in addition to appropriate test standards and Guardian’s standard operating procedure.
- ANSI Z21.50 – Vented Decorative Gas Appliances
- ASTM E-84 – Standard Test Method for Surface Burning Characteristics of Building Materials
- ASTM E-119 – Standard Test Methods for Fire Tests of Building Construction and Materials
- ASTM E-1509 – Standard Specification for Room Heaters, Pellet Fuel-Burning Type
- ASTM E-152-81 – Standard Methods of Fire Tests of Door Assemblies
- ASTM E-1966 – Standard Test Method for Fire-Resistive Joint Systems
- ASTM E-2226 – Standard Practice for Application of Hose Stream
- ASTM E-2768 – Standard Test Method for Extended Duration Surface Burning Characteristics of Building Materials (30 min Tunnel Test)
- ASTM E-814 – Standard Test Method for Fire Tests of Penetration Firestop Systems
- CAN/ULC-S102 – Standard Method of Test for Surface Burning Characteristics of Building Materials and Assemblies
- CSA-B366.1 – Solid-Fuel-Fired Central Heating Appliances
- GL-97-02 – Standard for Field Labeling Service
- NFPA 232 – Standard for the Protection of Records
- NFPA 251 – Standard Methods of Tests of Fire Resistance of Building Construction and Materials
- NFPA 252 – Standard Methods of Fire Tests of Door Assemblies
- NFPA 705 – Recommended Practice for a Field Flame Test for Textiles and Films
- NFPA 80 – Standard for Fire Doors and Other Opening Protectives
- UL 10A – Standard for Tin-Clad Fire Doors
- UL 10B – Standard for Fire Tests of Door Assemblies
- UL 10C – Standard for Positive Pressure Fire Tests of Door Assemblies
- UL 10D – Standard for Fire Tests of Fire-Protective Curtain Assemblies
- UL 1479 – Standard for Fire Tests of Penetration Firestops
- UL 1482 – Standard for Solid-Fuel Type Room Heaters
- UL 1715 – Standard for Fire Test of Interior Finish Material
- UL 1777 – Standard for Chimney Liners
- UL 2079 – Standard for Tests for Fire Resistance of Building Joint Systems
- UL 263 – Standard for Fire Tests of Building Construction and Materials
- UL 391 – Standard for Solid-Fuel and Combination-Fuel Central and Supplementary Furnaces
- UL 555 – Standard for Fire Dampers
- UL 72 – Standard for Tests for Fire Resistance of Record Protection Equipment
- ULC CAN-S101 – Fire Endurance Tests of Building Construction and Materials
- ULC CAN-S627 – Standard for Space Heaters for Use With Solid Fuels
- ULC-S115 – Fire Resistant and Firestop Products and Systems

“We have enjoyed a multi-year relationship with Guardian Fire Testing, which has included [services from their] Testing, Product Listing and Product Certification [divisions].”

PUT OUR EXPERIENCE TO THE TEST.
Learn more about our fire testing services or request a quote.