SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION
(SMACNA)
SMACNA Arch. Manual
(2003, 6th Ed) Architectural Sheet Metal
Manual
SMACNA HVAC Duct Const Stds
(1995, 2nd Ed) HVAC Duct Construction
Standards - Metal and Flexible
SMACNA Industry Practice
(1975, 1st Ed) Accepted Industry Practice
for Industrial Duct Construction
SMACNA Seismic Restraint Mnl
(1998, 2nd Ed) Seismic Restraint Manual:
Guidelines for Mechanical Systems
1.2
RELATED REQUIREMENTS
The provisions of Section 15050N BASIC MECHANICAL MATERIALS AND METHODS
apply to this section.
1.3
DEFINITIONS
1.3.1
Decibels dB
Measure of sound level. Decibels are referenced to either 20 uPa for sound
pressure levels or one pW for sound power levels. dBA is the overall "A"
weighted sound level.
1.3.2
Machinery
The vibration or noise producing equipment that must be isolated.
1.3.3
Manufacturer
The fabricator or supplier of vibration-isolation or seismic-protection
materials and equipment. For mechanical equipment and machinery the term
machinery manufacturer will be used.
1.3.4
Micropascal uPa
10 to the minus 6 power newtons per square meter.
1.3.5
Picowatt pW
10 to the minus 12 power watts.
1.4
SYSTEM DESCRIPTION
1.4.1
Spring Isolator Data
For each type and size of spring isolator, submit the spring outside
diameter, deflection, operating spring height, unloaded spring height,
solid spring height, the ratio of the outside diameter to the operating
spring height, the load to deflection ratio of the springs, and weight and
sizes of structural steel members.
1.4.2
Machinery Manufacturer's Sound Data
For each piece of indicated machinery to be vibration isolated, the
SECTION 15070N
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