UL 181
Standard for Factory-Made Air Ducts and Air Connectors
This Standard outlines safety requirements for materials used in the fabrication of air ducts and connectors used in heating, ventilation and air conditioning systems.
View on ShopULstandards.com
More Electrical and HVAC Standards
Lighting
- Portable luminaries
- Luminaires
- Lighting systems
HVAC
- Air ducts and connectors
- Clothes dryer transition ducts
Electric power components
- Snap switches
- Electric doors, gates and windows
- Attachment plugs and receptacles
- Ground-fault circuit-interrupters
- Furniture power distribution units
- Circuit breakers
- Engine battery chargers
- Surge protection devices