IEC 60695-11-2:2017

Overview - IEC 60695-11-2:2017 (1 kW pre-mixed flame)

IEC 60695-11-2:2017 is a basic safety publication from the IEC that defines the apparatus, confirmatory test arrangement and guidance for producing a nominal 1 kW propane/air pre‑mixed test flame for fire hazard testing. The third edition (2017) is a technical revision that adds an alternative flame‑production method and updates annex material. This standard is intended primarily for technical committees preparing other standards in line with IEC Guide 104 and ISO/IEC Guide 51 (it is not intended for use by manufacturers or certification bodies).

Key topics and technical requirements

• Purpose: Establish reproducible conditions for a 1 kW nominal pre‑mixed flame used as a standardized ignition source in fire hazard testing.
• Apparatus components covered:
  • Burner construction and general assembly
  • Gas supply and flow control for propane/air premix
  • Copper block and positioning fixtures used in confirmatory checks
  • Thermocouple selection and temperature/time recording instruments
  • Requirements for an appropriate laboratory fumehood or chamber (draught‑free conditions)
• Production methods: Two selectable methods (Method A and Method B - B is an alternative production method added in this edition) for generating the nominal 1 kW flame.
• Confirmatory testing:
  • Principle and procedures for confirming effective power output
  • Frequency and practical arrangements for confirmatory checks
  • Details for measurement geometry (flame dimensions, positioning), reference figures and annex guidance
• Normative references: Includes thermocouple standards (IEC 60584 series) and fire safety vocabulary (ISO/IEC 13943).

Applications and users

• Primary users: IEC technical committees and standards developers who need a consistent, reproducible 1 kW test flame definition when drafting test methods and safety requirements.
• Secondary relevance: Laboratories, research organizations and test method authors may consult this document (and companion IEC 60695 parts) to understand the standardized flame configuration and confirmatory approach when developing or harmonizing fire hazard test methods. Note: the standard itself is framed as a basic safety publication and does not provide certification procedures for manufacturers.

Related standards

• Other parts of the IEC 60695 series (e.g., 11‑3: 500 W, 11‑4: 50 W, 11‑5: needle‑flame, 11‑40: confirmatory tests guidance)
• IEC 60584 (thermocouples) and ISO/IEC 13943 (fire safety vocabulary)

Keywords: Fire Hazard, Pre‑Mixed Flame, Standardized 1 kW Test Flame, IEC 60695-11-2, test flame apparatus, confirmatory test arrangement.