Fireproof Material Testing

Testing Scope

Fireproof board, fireproof coating, fireproof sealing material, fireproof insulation material, fireproof door, fireproof rolling shutter, fireproof glass, fireproof sealing element, cable fireproof coating, fireproof sealing system, fireproof decorative material, aluminum-plastic composite fireproof board, fireproof composite material, fireproof insulation integrated board

detection content

 

Combustion performance classification: A1/A2 (non combustible), B1 (flame retardant), B2 (combustible), B3 (flammable)
Non combustibility: furnace temperature rise ≤ 50 ℃, mass loss rate ≤ 50%, continuous combustion time ≤ 20s
Flammability: combustion length, self extinguishing time, droplet ignitability
Extreme Oxygen Index: The minimum oxygen concentration required to maintain combustion (A1 level ≥ 90%, B1 level ≥ 32%)
Heat release rate: peak heat release rate (PHRR), total heat release (THR)
Smoke Density: Maximum Optical Density (Dm), Smoke Density Rating (SDR)
Combustion calorific value: Total calorific value (PCS), Net calorific value (PCI)
Smoke toxicity: concentration of toxic gases such as CO and HCN, toxicity index ≤ 1.0
Fire resistance limit: the time required to maintain integrity and insulation under the standard heating curve (divided by component type into 30/60/90/120 minutes, etc.)
Bonding strength: Bonding strength with substrate (steel structure fireproof coating ≥ 0.15MPa)
Coating thickness: Thin/ultra-thin qualified point rate ≥ 80%, thinnest part ≥ 90% of design thickness
Weather resistance: resistance to cold and hot cycles, salt spray, water resistance, moisture and heat resistance
Construction performance: drying time (surface drying ≤ 4h, actual drying ≤ 24h), flowability, adhesion
Electric welding spark test: resistance to welding spark of foam insulation material
Thermal conductivity: Thermal conductivity of insulation and fireproof materials
Impact resistance: the ability to maintain fire resistance after withstanding external impact
Durability: retention rate of fire resistance after long-term use

GB/T 8624-2025 Classification of Combustion Performance of Building Materials and Products

GB/T 8624-2012 Classification of Burning Behavior of Building Materials and Products

GB/T 5464-2010 Test Method for Non combustibility of Building Materials

GB/T 8626-2017 Test Method for Flammability of Building Materials

GB/T 10707-2022 Determination of rubber combustion performance

GB/T 14402-2007 Test Method for Combustion Heat Value of Building Materials

GB/T 16172-2007 Test Method for Thermal Release Rate of Building Materials

GB/T 20284-2006 Single Unit Combustion Test for Building Materials or Products

GB/T 20285-2006 Classification of Toxicity Hazards for Smoke Production of Materials

GB 14907-2018 General Technical Conditions for Fire resistant Coatings for Steel Structures

GB 28375-2025 Fire resistant Coatings for Concrete Structures

GB/T 15442.1-2019 Decorative Fireproof Coatings Part 1: Technical Requirements

GB/T 15442.2-2019 Decorative fireproof coatings Part 2: Test methods

GB/T 22282-2008 Test method for flame retardancy of building materials

GB 23864-2023 Fireproof Sealing Materials

GB/T 34411-2017 Test Method for Fire Resistance Performance of Building Fire Sealing Systems

GB/T 25970-2010 Rock wool products for external insulation of building exterior walls

GB/T 30595-2014 Test Method for Fire Performance of Exterior Insulation Systems for Building Walls

GB/T 29416-2012 Fireproof Glass for Buildings Part 1: Single piece Fireproof Glass

GB/T 9978.1-2008 Fire resistance test methods for building components Part 1: General requirements

GB/T 9978.2-2008 Fire resistance test methods for building components Part 2: Determination of fire integrity, insulation and heat flux

GB/T 12513-2021 Fire resistance test method for glazed components

GB/T 27904-2011 Fire resistance test method for fire doors

GB/T 7633-2008 Fire resistance test method for doors and rolling shutters

Zhejiang Gangxin Testing Technology Co., Ltd.

was established in 2011. As a national high-tech enterprise recognized by the Zhejiang Provincial Higher People's Court as a judicial authentication institution for construction engineering quality, we specialize in structural performance testing and safety assessment of construction projects, special equipment, communication towers, electromagnetic environments, large bridges, and building safety appraisal.

The company has more than 100 professional and technical personnel, over 90% of whom hold various medium and senior technical certificates. Equipped with complete testing equipment worth over RMB 10 million, our business scope covers the whole country.