Basic Documentation
Table Of Contents
- Introduction
- Applicable Definitions (Alphabetical Listing)
- Laboratory Safety
- Hazard Assessment
- Chemical Hygiene Plan
- Chemical Hygiene Responsibilities
- Fume Hoods
- When Required & Safe Usage
- Gloveboxes:
- Face Velocity
- Face Velocity Setback
- Size & ADA Compliance
- CAV (Constant Air Volume) Bypass
- CAV (Constant Air Volume) Conventional
- VAV (Variable Air Volume)
- VAV Diversity
- Automatic Sash Closure
- Safe Operation of Sashes
- Accessories, Services and Explosion Protection
- Ductless
- Auxiliary Air
- (Special Purpose) Perchloric Acid
- Room Air Cross Currents
- Minimum Exhaust
- Monitoring
- Selection Criteria and Performance Specifications
- Laboratory Design & Fume Hood Implementation
- Maintenance
- Periodic Testing
- Test Procedures
- Signage and Recordkeeping
- Shutdown Procedures
- Evaluating CAV (Constant Air Volume) Systems
- Evaluating VAV (Variable Air Volume) Systems
- Biological Laboratories
- Biosafety Level 1
- Biosafety Level 2
- Biosafety Level 3
- Biosafety Level 4
- Ventilation for Biosafety Level 1
- Ventilation for Biosafety Level 2
- Ventilation for Biosafety Level 3
- Ventilation for Biosafety Level 4, Cabinet Laboratory
- Ventilation for Biosafety Level 4, Suit Laboratory
- Containment Levels - Canada
- Containment Levels and Ventilation Requirements: Canada
- Biological Safety Cabinets and Classifications
- Biosafety Cabinet Applications
- Biosafety Cabinets – Installation and Safe Usage Recommendations
- Biosafety Cabinets – Certification and Safe Usage - Canada
- Biological Safety Cabinet Design, Construction and Performance Requirements
- Biosafety Cabinet Testing
- Ventilation Systems
- Local Ventilation -When Required
- Ventilation Rates for Animal Rooms
- Ventilation Rates for Animal Rooms
- Ventilation Rates for Biological Labs
- Ventilation Rates for Chemical Laboratories
- Ventilation rates for Storage areas
- Room Supply Air
- Supply Air Quality and Filtration
- Room and Duct Pressurization
- Human Occupancy, Room Temperature and Humidity
- Animal Rooms Room Temperature and Humidity
- Load Calculations
- Room Sound Level and Vibration
- Emergency Control Provisions
- Energy Conservation
- Monitoring
- Maintenance
- Periodic Inspection and Testing
- Periodic Inspection and Testing - Canada
- Test Records
- Management
- Exhaust Systems
- Configuration
- Leakage
- Components
- Manifolded Systems
- Air Velocity
- Stack Height and Discharge Location
- Operational Reliability
- Recirculated Air and Cross Contamination
- Materials and Fire Protection
- Commissioning
- Commissioning - Canada
- Referenced Publications
Laboratory Ventilation Codes and Standards
Siemens Industry, Inc. 56
Topic Requirement(s) Commentary
Evaluating
VAV (Variable
Air Volume)
Systems
American National Standard for Laboratory Ventilation ANSI/AIHA Z9.5-2003
6.5.3 VAV hood systems shall be commissioned prior to use by laboratory personnel
to ensure that all system components function properly and the system operates as
designed under all anticipated operating modes. The commissioning procedure for
VAV systems shall include:
• Verification of VAV sensor calibration;
• VAV Hood performance Tests;
• VAV Laboratory and Ventilation System Tests; and
• Verification of System Diversity (See VAV Diversity on the next page.)
6.5.3.1 VAV sensors shall be capable of accurate measurements and control within
10% of actual at the design maximum and minimum flow conditions.
6.5.3.2 In addition to hood performance tests described for evaluation of CAV hood
systems, commissioning tests on VAV hood systems shall include measurement of
flow or
face velocities at different sash configurations and VAV Response and Stability
tests. Flow or face velocity tests shall be conducted at a minimum of two separate
sash configurations. VAV Response and Stability tests shall include continuous
measurements and recording of flow while opening and closing the sashes for each
hood (calibrated flow sensors or measurements of slot velocity within the hood can be
used as an indicator of flow. VAV Response shall be sufficient to increase or decrease
flow within 90% of the target flow or face velocity in a manner that does not increase
potential for escape. VAV stability shall be sufficient to prevent flow variations in
excess of 10% from design at each sash configuration or operating mode.
6.5.3.3 The VAV hood controls shall provide stable control of flow in the exhaust and
supply ducts and variation of flow must not exceed 10% from design at each sash
configuration or operating mode.
VAV ventilation systems need to be properly
tested, adjusted and balanced initially and
thereafter closely monitored to ensure proper
functionality and attainment of the potential
energy savings.
Also see Appendix 4 - Audit Form in
ANSI/AIHA Z9.5-2003, which provides a
comprehensive checklist for the Laboratory
Ventilation Management Program including
Commissioning Tests.