ISO 3008-2:2017

Overview

ISO 3008-2:2017 - Fire-resistance tests - Part 2: Lift landing door assemblies specifies a standardized laboratory test method to determine the fire-resistance performance of lift landing door assemblies exposed to fire from the landing side. The procedure is intended to verify that lift landing doors act as an effective fire barrier to limit fire and smoke spread via the lift well. The standard measures integrity, and optionally thermal insulation and radiation, using a vertical furnace and instrumentation consistent with ISO 834-1.

Key technical topics and requirements

• Scope: Applies to all types of lift landing door assemblies used as access to lifts and intended to provide a fire barrier against fire spread via the lift well.
• Test furnace and conditions: Uses the ISO 834-1 standard time–temperature furnace curve; furnace pressure at sill level is maintained at 2 Pa ± 2 Pa (positive on exposed side).
• Specimen requirements: Full-size specimens or the maximum size that fits the furnace; installation in an associated supporting construction or defined standard supporting construction to replicate realistic restraint and heat transfer.
• Measured criteria:
  • Integrity (E) - ability to prevent flame passage and sustained flaming.
  • Insulation (I) - limitation of temperature rise on the unexposed face (optional measurement).
  • Radiation (W) - limitation of radiant heat transmission (optional).
• Leakage rate: Quantification of hot-gas leakage through gaps and openings under overpressure; procedures, verification and extrapolation are covered (Annexes C–F).
• Instrumentation & monitoring: Temperature (furnace, gas, unexposed face), pressure, gas flow, CO concentration, heat flux, deflection and gap measurements.
• Functionality & conditioning: Mechanical conditioning is limited to verification that the specimen is operational prior to testing. Functionality tests are required pre- and post-test.
• Reporting & classification: Test report content, classification periods and declaration of performance are defined.

Practical applications

• Product testing and certification of lift landing doors for fire safety compliance.
• Design verification for manufacturers of lift doors, frames and seals.
• Performance evidence for building designers and fire safety engineers to prevent vertical fire spread via lift shafts.
• Basis for regulatory approval, procurement specifications, and third‑party certification.

Who should use this standard

• Fire-testing laboratories and certification bodies
• Lift and door manufacturers and component suppliers
• Fire safety engineers, building designers and façade/escape-route consultants
• Regulators and code authorities specifying fire performance for lifts

Related standards

• ISO 834-1 (fire-resistance furnace and general requirements)
• ISO 3008 (fire-resistance tests - door and shutter assemblies)
• ISO 13943 (fire safety vocabulary)

Keywords: ISO 3008-2:2017, fire-resistance tests, lift landing door assemblies, lift doors, leakage rate, integrity, insulation, ISO 834-1, fire barrier, furnace testing.