During construction, ductwork sections of the air system should be pressure tested using EN 12599 (CEN 2012) or Sections4, 6, and 7 of SMACNA
's HVAC Air Duct Leakage Test Manual (2012).
That has to be mitigated by implementing SMACNA
's and ASHRAE's standards.
James Bailey, P.E., and Roger Gay, Senior Industrial Hygienist, with Building Dynamics, LLC, Ashton, Md.; SMACNA
, Fairfax, Va.
is the Sheet Metal and Air Conditioning Contractors National Association, with chapters in the U.S, Canada, Australia, and Brazil, and Direct Members in England, India, Japan, Kuwait, Malaysia, Cayman Islands, Mexico, Netherlands, New Zealand, Puerto Rico, Saudi Arabia, Singapore and South Africa.
Points for Follow SMACNA
Construction following IAQ Guidelines for SMACNA
Occupied IAQ Buildings under Guidelines for Construction.
Pressure drop data were calculated using ASHRAE's "Duct Fitting Database" (1) or SMACNA
's HVAC Systems Duct Design.
Today, Safid has the ability to manufacture a complete range of products and accessories for commercial and industrial air distribution based on Smacna
, DIN and BS Standards.
An active member of ASHRAE, he has an in-depth knowledge of the Uniform Mechanical Code, NFPA, ASHRAE, SMACNA
, and API codes, as well as ISO-9000 Series.
28; Thomas Luerssen, President of SMACNA
of Long Island; and Michael Checchi, President of NYC SMACNA
The primary information sources for VAV duct design are the Sheet Metal and Air Conditioning Contractors National Association, Inc.'s (SMACNA
) HVAC Systems--Duct Design (SMACNA
1990), the California Energy Commission's (CEC) Advanced Variable Air Volume System Design Guide: Design Guidelines (Hydeman et al.
(The streaming Reynolds number is a dimensionless mathematical parameter that is the ratio of airflow inertia forces to friction forces, including aerodynamic airflow over a flat surface such as the internal part of a flat duct.) Steel duct gauges and reinforcement spacing was generally at minimum SMACNA