GB16807-2009
Fire intumescent seals
防火膨胀密封件
GB 16807-2009 is a current mandatory Chinese national standard for Fire intumescent seals. It appears in the Construction compliance cluster with a product safety focus and has an implementation date of Nov 1, 2009.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to fire intumescent seals used in building components such as fire doors, fire windows, fire shutters, fire valves, and fire-resistant glass partitions. It can also be referenced for fire intumescent seals used in vehicles, ships, and aircraft. It is essential for manufacturers supplying passive fire protection components to the Chinese construction industry. The standard specifically covers products that expand under high temperatures to provide fire, smoke, and heat sealing.
Technical requirements
The standard specifies mandatory requirements for the physical and structural integrity of the intumescent assembly. This includes appearance criteria, where the exposed surface must be smooth and free from cracks or uneven thickness, and dimensional tolerances for both Type A (single protective layer) and Type B (special-shaped) seals. Manufacturers must ensure dimensional deviations strictly fall within the prescribed percentage limits. A core focus is the expansion performance of the intumescent components. The standard dictates that the measured expansion ratio must not deviate more than 15% from the manufacturer's declared value. Furthermore, the standard mandates strict smoke toxicity and smoke density limits to ensure the materials do not release hazardous gases during a fire event, referencing GB 20285-2006 for safety grading. The standard outlines rigorous environmental durability requirements. The seals must demonstrate resistance to air aging, water, acid, and alkaline immersion, as well as freeze-thaw cycles. After exposure to these harsh environmental conditions, the seals must not show significant erosion, swelling, or powdering, and their expansion ratio must remain at or above their initial baseline. Finally, it sets comprehensive fire seal performance criteria. When installed according to the manufacturer's instructions and tested on a fire door assembly, the seal's location must maintain fire integrity as specified in GB/T 7633. This ensures the product effectively prevents the passage of flames and smoke throughout the required fire resistance rating period.
Testing methods
The standard mandates several specific evaluation procedures: Expansion Performance Test (measuring volume expansion after high-temperature furnace exposure), Smoke Toxicity and Density Tests (evaluating hazardous gas production and smoke generation), Environmental Resistance Tests (immersion in water, acid, and alkaline solutions, alongside air aging and freeze-thaw cycling), and the Fire Seal Performance Test (a full-scale fire resistance test on a door assembly). These tests collectively verify both the immediate reactive fire performance and the long-term reliability of the seals.
FAQs
What products are regulated under GB 16807-2009?
It applies to fire intumescent seals used in building components such as fire doors, fire windows, fire valves, and fire-resistant glass partitions. It can also be referenced for seals used in vehicles, ships, and aircraft.
Are there any updates from the previous version of GB 16807?
The 2009 version restructured the classification from three types (A, B, C) to two types (A and B). It also added mandatory requirements for smoke toxicity, smoke density, air aging resistance, and freeze-thaw cycle resistance, while removing certain outdated physical and mechanical performance metrics.
How does GB 16807-2009 differ from ISO standards?
The standard references several Chinese standards for its testing methodologies, such as GB/T 7633 for fire resistance tests and GB 20285 for smoke toxicity. Engineers should review the full translation to understand how these localized test procedures align with international ISO standards.
The summary above provides a high-level overview of GB 16807-2009. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 16807-2009 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C84
- ICS
- 13.220.50
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China