AIR SYSTEM TEST PROCEDURES
​Air system testing and reporting shall be performed in accordance with instrumentation and procedures as defined within the 2005 NEBB
Procedural Standards for Testing, Adjusting and Balancing of Environmental Systems.

Instrumentation
​All air system testing and balancing shall be performed with instrumentation in compliance with guidelines identified within the NEBB procedural standards. Selection of specific instrumentation for each application will be made to secure maximum accuracy level of test data. Listing of specific instrumentation and calibration records shall be submitted with final test report.

Sample Test Report Format if Requested

WATER SYSTEM TEST PROCEDURES

​Water system testing and reporting shall be performed in accordance with instrumentation and procedures as defined within the 2005 NEBB
​Procedural Standards for Testing, Adjusting and Balancing of Environmental Systems.

Instrumentation
​All water system testing and balancing shall be performed with instrumentation in compliance with guidelines identified within the NEBB procedural standards. Selection of specific instrumentation for each application will be made to secure maximum accuracy level of test data. Listing of specific instrumentation and calibration records shall be submitted with final test report.
​Sample Test Report Format if Requested


SOUND TEST PROCEDURES
Sound testing and reporting shall be performed in accordance with instrumentation and procedures as defined within the 2006 NEBB
​Procedural Standards for the Measurement and Assessment of Sound & Vibration.


Instrumentation
All sound tests will be performed with a CESVA Model Precision Sound Level Meter and Octave Ban Analyzer. This instrument conforms to ANS1 S1.4 Type 1 and 1EC 179 and is ideal for ASHA compliance measurements. We carry a CESVA CB-5 Calibrator with the instrument at all times and meter calibration is verified before performing sound level testing.

Timing
Sound level measurements will be performed when the space is relatively quiet with a minimum of activity and background noise.

Specific Test Procedures
The microphone will be positioned no closer than three feet from any floor, wall or ceiling, or no closer than six feet from any terminal or room unit.
Sound pressure levels will be tested as prescribed in project specifications.

Reports
1. The following data shall be included on final report:
2. Measurements at the specified frequencies with the tested equipment turned on.
3. Measurements at the specified frequencies with the tested equipment turned off.
4. Corrective calculation, if required, between equipment noise and ambient noise levels.
5. The "Equipment Components" of the room sound level.Graphical representation of
equipment component, if required.
6. ​Identification of test location.


BUILDING SYSTEMS COMMISSIONING
​All procedures and reporting shall be performed in accordance with procedures as defined within the NEBB 2009 Procedural Standards for Building Systems Commissioning of Environmental Systems, and Project Specifications.

Main Office

6711 Distribution Drive  Beltsville, Maryland 20705

Phone: 301-931-9300  Fax: 301-931-0369

NC Branch Office

2228 Page Road Ste. 101  Durham, North Carolina 27703

Phone: 919-381-5065  Fax: 919-381-5095

  Air and Water Balancing

  Ultrasonic Flow

     Measurement Readings

  Sound and Vibration Testing

  Indoor Air Quality Testing

  Building Systems Commissioning

  Smoke Evacuation System Testing

  Pre Demo Readings

  Acceptance Testing

  Fume Hood Testing

  Coil Load Performance Testing

  Duct Air Leakage Testing

  Existing Building Surveys

  Mechanical Inspections with

     Report and Recommendations

  Temperature Trending

  Digital Photos and or Video Reports of

     Fog Machine Air Flow Visualization

  Air Exchange Rates / Pressure
     
Relationship Certification

  Stair Pressurization Testing

  ​Fire Life Safety

TESTING AND BALANCING

Instrumentation ​The following is a listing of proposed instrumentation used for data acquisition. Sample formats and test instrumentation submitted shall comply with data acquisition and reporting requirements set forth within the current NEBB PROCEDURAL STANDARDS FOR THE TESTING ADJUSTING AND BALANCING OF ENVIRONMENTAL SYSTEMS. Calibration histories of actual instrumentation used will be provided with final test report. Instruments utilized comply with identified range and accuracy requirements.


The following instrumentation key is provided for reference:

Key Instrument Type Range
1
Direct CFM Reading Hood Digital 25-2500 CFM
2
Direct CFM Reading Hood Analog 0-2500 CFM
3
Rotating Vane Anemometer 30-5000 FPM
4
Air Data Multimeter 25-10,000 FT./MIN
5
Hydrodata Multimeter -10" HG - 300 PSI
6
Digital Photo-Tachometer .5-20000 RPM
7
Stroboscope 0-4000 RPM
8
Inclined Manometer 0-10" w.g.
9
Magnehelic Gages 0-10" w.g.
10
Micro-Manometer 0-2.0" w.g.
11
TRMS Volt-Ohm-Ammeter 0-600 Volts / 0-300 Amps
12
Immersion Thermometers -40-220 degrees Fahrenheit
13
Pitot Tubes Not applicable
14
Thermal-Anemometer 20-2000 FPM
15
Contact Thermometers -328-2500 degrees Fahrenheit
16
Pressure Gages -30"-0-200 PSIG
17
Psychrometer 10% - 100% RH
18
Differential Pressure Gages 0-100" w.g.
19
CESVA SC-310 Sound Meter up to 140 dB Peak
20
CESVA CB-5 Calibrator Not Applicable
21
Vibration Meter Not Applicable
22
U-Tube Manometer 0-20" w.g.
23
Orifice Tubes 3-600 CFM
24
Smoke Generator Not Applicable
25
DALT 5" Leak Test Rig Not Applicable

Our Services Include:

Since 1966