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
Ventilation Systems
Siemens Industry, Inc. 119
Topic Requirement(s) Commentary
Monitoring
U.S. OSHA, 29 CFR, Part 1910, Occupational Safety and Health Standards, Subpart
Z, Toxic and Hazardous Substances,1910.1450,C4(h) & D3:
Evaluation. Quality and quantity of ventilation should be evaluated on
installation, regularly monitored (at least every 3 months), and reevaluated
whenever a change in local ventilation devices is made.
Regular instrumental monitoring of airborne concentrations is not usually justified or
practical in laboratories but may be appropriate when testing or redesigning hoods or
other ventilation devices or when a highly toxic substance is stored or used regularly
(e.g., 3 times/week).
American Conference of Governmental Industrial Hygienists (ACGIH)
INDUSTRIAL VENTILATION A Manual of Recommended Practice, 27th Edition
8.4.4 The (cooling) coil and (condensate) pan must be inspected and cleansed on a
regular basis.
American Institute of Architects, GUIDELINES FOR PLANNING AND DESIGN OF
BIOMEDICAL RESEARCH LABORATORY FACILITIES 1999
C.7.5 Air Quality
Adequate access shall be provided for periodic maintenance and cleaning of coils,
humidifiers and drain pans. Drain pans shall be designed and installed for proper and
immediate drainage of condensed water. A proper hydraulic head shall be provided for
drains with positive and negative air plenums to provide drainage and prevent
overflow.
ASHRAE, 2011 Handbook HVAC Applications, Laboratories, 2003, Pg. 16.18
OPERATION AND MAINTENANCE:
Centralized monitoring of laboratory variables (e.g., pressure differentials, face velocity
of fume hoods, supply flows, and exhaust flows) is useful for predictive maintenance of
equipment and for ensuring safe conditions. For their safety, laboratory users should
be instructed in the proper use of laboratory fume hoods, safety cabinets, ventilated
enclosures, and local ventilation devices. They should be trained to understand the
operation of the devices and the indicators and alarms that show whether they are safe
to operate. Users should request periodic testing of the devices to ensure that they and
the connected ventilation systems are operating properly.
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A centralized monitoring system provides the
best assurance that a systematic monitoring
plan is carried out. Automatic recording of
key operational parameters such as
laboratory room supply and exhaust airflows,
face velocities, etc. can help ensure that
complete records are maintained.