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ASHRAE Standard 110-2016 (RA2025) -- Methods of Testing Performance of Laboratory Fume Hoods (ANSI Approved)., 2016
- ASHRAE Online Bookstore
- Addenda
- Errata
- Return to Previous Page
- ANSI/ASHRAE Standard 110-2016 (RA2025) [Go to Page]
- Contents
- Foreword
- 1. Purpose
- 2. Scope [Go to Page]
- 2.1 This method of testing applies to conventional, bypass, auxiliary air, and variable-air-volume (VAV) laboratory fume hoods.
- 2.2 This standard is intended primarily for laboratory and factory testing but may be used as an aid in evaluating installed performance as well.
- 3. Definitions and Abbreviations [Go to Page]
- 3.1 Definitions. This section defines the following terms as they are used in this standard. For the definitions of other terms used in this standard, refer to ASHRAE Terminology of Heating, Ventilation, Air Conditioning, & Refrigeration.1
- 3.2 Abbreviations
- 4. Instrumentation and Equipment [Go to Page]
- 4.1 Tracer Gas. The tracer gas shall be sulfur hexafluoride or a gas of similar molecular weight and stability and shall be supplied from a cylinder capable of maintaining a pressure of approximately 30 psig (200 kPa [gage]) at the test release rate ...
- 4.2 Ejector System
- 4.3 Orifice
- 4.4 Detection Instruments
- 4.5 Calibration
- 4.6 Mannequin. The mannequin shall be a three-dimensional clothing-display mannequin with a shoulder width of 17±2 in. (430±50 mm). The arms of the mannequin shall hang at its side, and the mannequin shall be of reasonable human proportions. The su...
- 4.7 Face Velocity Measuring Instruments
- 4.8 Airflow Visualization
- 4.9 Miscellaneous. Miscellaneous auxiliary equipment, such as a tape measure, extension cords, small wrenches, data sheets, or notebooks, shall be provided as needed.
- 5. Test Conditions [Go to Page]
- 5.1 Room Ventilation
- 5.2 Hood Condition
- 5.3 Background Level
- 5.4 Preliminary Data
- 6. Face Velocity Measurement Procedure [Go to Page]
- 6.1 Face Velocity Measurements
- 6.2 VAV Face Velocity Control Test
- 6.3 VAV Response Test. This test applies to laboratory hood systems equipped with VAV controls that modulate flow in response to sash movement. Flow response shall be determined by one of two methods: by measuring the exhaust flow (Method A) or by me...
- 7. Flow Visualization Procedure [Go to Page]
- 7.1 Flow Visualization
- 7.2 Airflow Patterns
- 7.3 Local Visualization Challenge
- 7.4 Large-Volume Visualization Challenge
- 7.5 Evaluation of Local and Large-Volume Smoke Tests
- 8. Tracer Gas Test Procedure [Go to Page]
- 8.1 Tracer Gas Tests
- 8.2 Peripheral Scan
- 8.3 Sash Movement Containment Test. The sash movement containment test is conducted to determine the potential for contaminant escape from the hood following movement of the sash. This method is applicable to both constant-volume and VAV hood systems.
- 9. References
- Informative Appendix A: Commentary and Additional Information on Standard 110 Sections [Go to Page]
- A1. (Purpose)
- A3. (Definitions)
- Informative Appendix B: Diagnostic Use of this Standard [Go to Page]
- B1. Introduction
- B2. Operational Problems
- B3. Room Conditions that Affect Hood Performance
- B4. Other Considerations
- B5. Appendix B References
- Informative Appendix C: Example Report
- Informative Appendix D: Bibliography [Go to Page]
