Appendix C – Acronyms

ASHRAE
American Society of Heating, Refrigeration and Air Conditioning Engineers
CAD
Computer-Aided Design
CFM
cubic feet per minute
CNC
Computer Numerical Controlled
CSA
Canadian Standards Association
GMAW
gas metal arc welding
GTAW
gas tungsten arc welding
HEPA
high efficiency particulate air
HRV
heat recovery ventilator
HVAC
heating, ventilation and air conditioning
LEED
Leadership in Energy and Environmental Design
L/S
litres per second
MSDS
Material Safety Data Sheet
NFPA
National Fire Prevention Association
OH&S
Occupational Health and Safety
PPE
Personal protective equipment
PVC
polyvinyl chloride
RFI
request for information
SMACNA
Sheet Metal and Air Conditioning Contractors National Association
SMAW
shielded metal arc welding
TDC
transverse duct connectors
TDF
transverse duct flange
TDG
Transportation of Dangerous Goods
WHMIS
Workplace Hazardous Materials Information System
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