Testing Products

Air Duct Products:

Ventilation ducts, flexible ducts, metal air ducts, non-metallic air ducts, composite air ducts, etc.

Air Duct Materials:

Sheets/panels for ventilation ducts.

Testing Items

Physical Properties:

Appearance, dimensional deviation, specific frictional resistance (pressure drop), condensation resistance, deformation, emission of harmful gases, bulk density, water absorption, impact resistance of flexible ducts, air leakage, duct wall deformation, strength, and other parameters.

Fire Resistance Performance:

Fire resistance rating, reaction to fire performance (applicable for Class A1 materials), etc.

Testing Standards

GB/T 17428-2009: Test method for fire resistance of ventilation ducts

GB 8624-2012: Classification for burning behavior of building materials and products

JG/T 258-2018: Non-metallic and composite air ducts

JGJ/T 141-2017: Technical specification for ventilation ducts

JG/T 301-2011: Machine-made glass fiber reinforced magnesium oxychloride composite (MGO) panels and air ducts

GB 50243-2016: Code for acceptance of construction quality of heating, ventilating and air conditioning (HVAC) systems