If the lab you work in is... read more, When you think of scientists from both the silver and small screen, a familiar image tends to form in... read more, Whether you’re looking to stay within your budgets or you’re hoping to ensure that experiments run effectively and without... read more, For many A channeled anchoring station for seismic bracing of equipment, named the Universal Restraining Bar, shall be installed along all bench top/counters in laboratories and other horizontal surfaces that house equipment. Verification procedures must be in accordance with ANSI Z358.1-2014. Heated perchloric acid will give off vapors that can condense and form explosive perchlorates. State of California, Department of Health Services, Radiologic Health Branch  Circulation. A watertight surface will contain any chemical spills or leaks from leaking to underneath hood. CCR, Title 24, Part 9, Section 8003.3.1.4. 12. Sink lips or berms should be >= 0.25 inches and designed to completely separate the lab bench or fume hood work area from the sink drain. This website use cookies to ensure that we give you the best experience on our website. Without an emergency eyewash and safety shower, future use of hazardous materials in the space will be restricted or require potentially costly retrofitting. The BSL-3 Laboratory Design Standards represent the UC requirements for constructing BSL-3 laboratories. Achieving this velocity should not be done by the installation of a cone type reducer. If the laboratory has windows that open, they must be fitted with insect screens. Prudent Practices in the Laboratory, 5.C. Safety Exits. But precise regulations your build is subject to will depend on your area and your application. Strobic-type exhaust fans may be used to address exhaust velocity needs. 11. Laboratories must be maintained under negative pressure in relation to the corridor or other less hazardous areas. This reduces fan size, motor horsepower, make up air volume, and make up air conditioning costs. All cabinets must be NSF listed, UL approved, and installed in accordance with the manufacturer’s requirements. If high shelving were installed, administrative controls, which are often burdensome, would be required. Follow manufacturer’s procedures for calibration of air flow indicator during installation. Glove Boxes: Glove boxes (positive and negative) must meet the type, design and construction of requirements ANSI/AIHA Z9.5-1992, 5.14. If you own or are... read more, A workplace that lacks worthwhile communication runs the risk of grinding your lab’s gears to a halt, and with... read more, A Guide to Regulations and Planning Permission When Building a Science Laboratory, InterFocus Ltd, Cambridge Road, Linton, CB21 4NN. To ensure your laboratory is legally compliant, you will need to make provisions for appropriate: How you comply with these regulations will depend, partly, on your budget. 24 CCR, Part 2, Chap. (Note: Filters must be maintained and routinely replaced, as necessary). (Note: The manufacturer should always be consulted to avoid possible damage to the pressurized cabinet volumes.). 4. 2. 11. The minimum accepted reading will vary slightly depending on your application. Emergency plumbed eyewash or eye/facewash equipment shall be provided for all work areas where, during routine operations or foreseeable emergencies, the eyes of an employee may come into contact with a substance which can cause corrosion, severe irritation, or permanent tissue damage or is toxic by absorption (see box below). All labs should be designed to conveniently and safely accommodate the temporary storage of biological, radiological, and chemicals (non-waste and waste) based on laboratory use projections. Planning and regulations can seem complicated and daunting, that’s why we’ve put together this guide to meeting all standards and maintaining the highest quality of building work. Wastes are generally stored in the lab in which they are generated, not in centralized accumulation areas. “Safe Handling of Radionuclides”, International Atomic Energy Agency, Safety Series No. The hood work surface shall be watertight with a minimum depression of 13 mm (1⁄2 inch) at the front and sides. Laboratory Facilities (BL2) App. 4. Design laboratory workstations to accommodate the range of body dimensions that may be using the workstations. 1. The bar should be adhered to the benchtop with very high bond adhesive so that no holes are drilled. The laboratory shall be bound by four walls and a roof or ceiling. The water supply to showers and/or shower/eyewash combination units should be controlled by a ball-type shutoff valve which is visible and accessible to shower testing personnel in the event of leaking or failed shower head valves. Hood exhausts should be manifolded together except for: Manifolded fume hood exhaust ducts shall be joined inside a fire rated shaft or mechanical room, or outside of the building at the roofline. CDC-NIH Biosafety in Microbiological and Biomedical Laboratories (BSL 2, D.3)  I. Evaluating the operational and research needs of the users will ensure that the appropriate type and number of hoods are integrated into the laboratory. 3. Locate away from high traffic areas, air supply diffusers, doors, and operable windows. Be located in a room or area which has independent exhaust ventilation; Operate at negative pressure in relation to the surrounding area; Have self-closing limited access parts or noncombustible windows to provide access to equipment controls, with an average face velocity of at least 200 fpm and with a minimum of 150 fpm at any part of the access port or window; and with design criterion of 200 fpm at the cylinder neck when the average face velocity is >200 fpm. Where feasible, floor drains should be installed below or near safety showers, with the floor sloped sufficiently to direct water from the shower into the sanitary sewer drain. 3. Normal or accidental closing of a damper may cause an explosion or impede the exhausting of toxic, flammable, or combustible materials in the event of a fire. California Code of Regulations (“CCR”), Title 8, Section 5194, Toxics, California Code of Regulations, Title 24, Part 9, Uniform Fire Code, California Code of Regulations, Title 24, Part 2, Uniform Building Code. 17. a. How often should you have your system tested? 10. Note: One pound of black sporting powder and 20 pounds of smokeless powder are permitted in either sprinkled or non-sprinkled buildings. 4. Fume hood ducts must be maintained under negative pressure. If shut off valves are installed in the supply line for maintenance purposes, provisions shall be made to prevent unauthorized shut off. If you’re planning to house your laboratory in a purpose-built facility or proposing an extension to an existing building, you must apply to your local planning department for approval. For information on the appropriate eyewashes that meet EH&S approval, review Chapter 4, Emergency Eyewash and Safety Showers in this Guide. 5. The Guide is a resource document for use by faculty, staff, and design professionals for use during the planning and early design phases of a project. Such enclosures must be constructed of an assembly of building materials with a fire-resistive rating of at least 1 hour and must not communicate directly with anesthetizing locations. Shutoff valves for services, including gas, air, vacuum, and electricity shall be outside of the hood enclosure in a location where they will be readily accessible in the event of fire in the hood. © Stanford University, Stanford, California 94305. b. 11. These hoods are often misused. 4. A 12-inch clearance should be provided behind and on each side of the cabinet to allow easy access for maintenance, and to ensure that the air return to the laboratory is not hindered. A fire or explosion in a fume hood located adjacent to a path of egress could trap someone in the lab. 1. Note: The eyewash is not considered an obstruction. In the event of an emergency, the laboratory may be unsafe to enter. Critical vent areas should be covered, or pointed down (i.e., Dewar necks and pressure reliefs). For Biosafety Level 2 applications involving toxic chemicals or radionuclides, a Class II- B type cabinet must be installed. The means of containing minor spills might consist of a 6.4-mm (1⁄4 in.) Guidelines for Research Involving Recombinant DNA Molecules (NIH Guidelines) Appendix Physical Containment-II-B-4-a: Physical Containment/Laboratory Facilities (BL2) The sampling point should not be located in an area where water from irrigation or flow from stormwater runoff can accumulate. Discharge from exhaust stacks must have a velocity of at least 3,000 fpm. Generally speaking, costs for lab design and construction are typically subject to the same variables that come into play for commercial office space construction. Circuit breakers should be located outside the lab, but not in rated corridors. Such items include freezers, biosafety cabinets, centrifuges, and incubators. A plumbed eyewash shall be provided at all work areas where formaldehyde solutions in concentrations greater than or equal to 0.1% are handled. Class 3 and 4 unstable (reactive) materials. By testing the equipment, Stanford can be assured that it is working properly before the users begin their research. Over the past 30 years, architects, engineers, facility managers, and researchers have refined the design of typical wet and dry labs to a very high level. Unventilated enclosures such as lockers, coldrooms and cupboards. All autoclaves shall be seismically anchored. 6. 2. 1. Such self-closing doors are to be able to be opened with a minimum of effort as to allow access and egress for physically challenged individuals. Laminar airflow is greatly hindered by the operation of a biosafety cabinet located directly opposite of another biosafety cabinet or autoclave. Laminate bench tops are not suitable. 14. 7. Construction Completion: July 2022 (Projected) Occupancy: August 2022 (Projected) The scope of work for the Infrastructure Research Laboratory includes the construction of a state-of-the-art research lab that will provide strength and structural testing for concrete … 2. Biological laboratories using bleach and other chemical disinfectants will generally require eyewash and safety showers. An ADA emergency eyewash/shower shall be within 10 seconds of an ADA fume hood (minimally one ADA hood per laboratory floor). Where the hazard is corrosive, consult with EH&S. g) Spray wash-down nozzles shall be installed in the ducts no more than 5 ft. apart. 1. A continuous gas detection system shall be provided for Class I and II toxic gases regulated by Santa Clara County’s Toxic Gas Ordinance to detect the presence of gas at or below the permissible exposure limit in occupiable areas and at or below 1⁄2 the IDLH (or 0.05 LC50 if no established IDLH) in unoccupiable areas. Floor drains will also facilitate required monthly testing. 2. This practice keeps these items from falling in the event of an earthquake and assures that safety while exiting is not compromised. 1. ©1999 Board of Trustees Leland Stanford Junior University. Recommend that solvent storage not be located under the laboratory fume hood, as this location is where fires are most likely to occur in laboratories. In some applications, means to monitor the radiation levels in the areas shall be provided. This design will make maintenance easier. Other potential hazards that may be adjacent to the path of travel that might cause further injury should be considered. 3. Biological safety cabinets (BSCs) must be located away from doors and other high traffic areas. Substances identified by the manufacturer or distributor as corrosive or severely irritating to the skin. Currents of air can disrupt and degrade the protective capability of the cabinet. 4. PPE storage should be separate from any storage provided for ordinary clothing. Note that for x-ray producing machines, shielding calculations will be performed by the Radiation Safety Program. 1. The duct may be reduced, but the duct beyond the reduction should be of sufficient length to allow the air movement to return to a linear pattern. 2. IAEA, Safe Handling of Radionuclides. An appropriate biosafety cabinet must be used. The lab should be fitted with an adequate number of electrical outlets, which can accommodate electrical current requirements with an additional 20-40% capacity. Most systems expel gases into the atmosphere through an external duct and should meet the British Standard (BS EN 14175). This guidance from The Health and Safety Executive explains how to ensure that your local exhaust ventilation system (LVE) is designed, installed and tested in accordance with the law. 1, “Structural Shielding and Evaluation for Medical Use of X-rays and Gamma Rays of Energies up to 10 Mev”, National Council on Radiation Protection, Report No. “CRC Handbook of Laboratory Safety, 4th Ed.” CRC Press 1995. Prudent Practices in the Laboratory 8.C, 8.D. Locating the slots in this manner will attain reasonably uniform face velocity under different conditions of hood use as related to heat sources, size, and configuration of equipment in hood. When building a new research suite, it’s vital you consider permissions and regulations from the outset. Substances identified by the manufacturer or distributor as causing corrosion, severe irritation, or permanent tissue damage to the eyes. The Biosafety cabinet shall be vented from the building if toxic or malodorous chemicals are used. P.E. The laboratory doors shall be automatically self-closing. An exhausted manifold or manifolds with connections to local exhaust may be provided as needed to collect potentially hazardous exhausts from gas chromatographs, vacuum pumps, excimer lasers, or other equipment which can produce potentially hazardous air pollutants. The location of such a shut-off shall be legibly lettered in a related location on the exterior of the hood. 10. 7501.8.3. The relative emphasis to be placed on standards of performance and on … General laboratories using hazardous materials shall have a minimum of 6 air changes per hour (ACH). Contact the Hazardous Waste Division of Environmental Health and Safety for guidance and assistance. This document was designed as a reference tool to assist those involved in laboratory design, construction and renovation projects in meeting safety standards applicable to McGill University. ft. of floor space for containers and shields within a lockable area. Hoods shall have transparent movable sashes constructed of shatter-resistance, flame resistant material and capable of closing the entire front face. 51, (NCRP51), (Both NCRP49 and NCRP51 are referenced in California Regulations, Titles 17 and 22), Guide for the Preparation of Application for Medical Use Programs, (Proposed Revision2 to Regulatory Guide 10.8, USNRC (NRC 10.8), Guide for the Preparation of Applications for Type A Licenses of Broad Scope, 2nd Proposed Revision 2 to Regulatory Guide 10.5, Revision 2, USNRC (NRC10.5), “CRC Handbook of Laboratory Safety, 4th Ed.” CRC Press 1995, (CRCLAB), “Recommendations for the Safe Use Of LASERS,” American National Standards Institute. Finally, the presence and movement of the user’s body in the stream of supply air creates turbulence that degrades the performance of the hood. A plumbed emergency shower shall be provided at all work areas where formaldehyde solutions in concentrations greater than or equal to 1% are handled. The selection of the site shall be such to minimize the risk of landslide or flood damage. b)  Fume hoods intended for use with radioactive isotopes must be constructed of stainless steel or other materials that will not be corroded by the chemicals used in the hood. o Magnahelic Gauges: Mark on gauge inches water read when average face velocity at 100 fpm. Fire detection and alarm systems shall not be interlocked to automatically shut down laboratory hood exhaust fans. 1. Air turbulence affects the capability of hoods to exhaust contaminated air. Exhaust fans shall run continuously without direct local control from laboratories. Class IIIb and Class IV laser facilities must be in rooms secured by locks. Ducts exhausting air from fume hoods should be constructed entirely of non- combustible material. Activation of the monitoring system shall automatically close the shut-off valve on toxic and highly toxic gas supply lines to the system being monitored. 8. All biosafety cabinets must be provided with an appropriate means of seismic stabilization. j) Each perchloric acid hood must have an individually designated duct and exhaust system. 7. 14. Potentially harmful aerosols can escape from the containment of the laboratory room unless the room air pressure is negative to adjacent non-laboratory areas. This design guide applies to the storage of hazardous materials. In all cases, EH&S should be consulted on questions regarding health, safety, and the environment. CCR, Title 24, Part 9, Section 8003.3.1.6, 8003.3.1.7. This bar allows for bracing of items in a way that allows them to be moved to another location when needed, and re-braced after moving. 11. Depending on the type and quantities of radioactive materials or the location of the facility, fume hoods used with volatile radioactive materials have specific design requirements. Drying ovens shall not be placed under fume hoods. Large sections of glass shall be shatter resistant. Wooden and wood finish walls or floors are not appropriate because they can absorb hazardous and/or potentially infectious material, particularly liquids, making decontamination/remediation virtually impossible. ACGIH, Industrial Ventilation: A Manual of Recommended Practice, 23rd edition, or latest edition. Design criteria are designated in the following ways: Criterion is mandated by applicable regulation(s). During construction the shielding must be inspected by the Radiation Safety Program while walls are open. Are your work surfaces made from easy-to-clean materials. 31. All equipment requiring anchoring shall be anchored, supported and braced to the building structure in accordance with CCR Title 24, Part 2, Table 16A-O. See certification requirements, Section 3.10, #10. Eddies are created by people passing by and by other sources of air currents. Location must not reduce width of corridors or aisles to less than code-required widths. Emergency eyewash and shower equipment shall deliver tepid water (60-100°F). Where feasible, eyewash basins should be plumbed to sanitary sewer drains. IAEA, Safe Handling of Radionuclides  Safe Handling of Radionuclides, Section 3.3.5 (1973 ed.) Design features which are prohibited: Work practice issues: Oxygen cylinders shall not be stored near highly combustible materials, especially oil or grease, or near any other substance likely to cause or accelerate fire (per 8 CCR 4650(d)). Key variables can include: Square footage: The larger the space, the more economy of scale you’ll see for hard costs. These hoods are not permitted, unless an exception is granted by EH&S. Class IV laser installations must be provided with interlocked warnings that indicate the status of the laser prior to entering the facility. In the event of an emergency, the laboratory may be unsafe to enter. NBS Handbook 92  New hoods can be mounted above a chemical storage cabinet, provided that the cabinet meets the Uniform Fire Code requirements for construction. All other ionizing radiation producing devices are regulated by the State of California, Department of Public Health. Where the required velocity can be obtained by partly closing the sash, the sash and/or jamb shall be marked to show the maximum opening at which the hood face velocity will meet the requirements. When work involves gamma emitters (especially gamma irradiators) the floors and coatings must be able to support the gamma shielding. California Code of Regulations (CCR), Title 8, Article 141, Sections 5531-5540. 1. A plan for decommissioning must be drafted and submitted to the State, approved, and executed. Fume hood exhaust is not required to be treated (e.g., filtered or scrubbed) except…. i) The hood baffle shall be removable for inspection and cleaning. The Stanford Laboratory Standard & Design Guide is not “all inclusive.” It does not cover all regulatory issues nor does it cover all design situations. The EH&S Laboratory Design Guide is not “all inclusive.” It does not cover all regulatory issues nor does it cover all design situations. 101, “Definitions,” 42 USC 12111 9(A)  State of California, Department of Health Services, Radiologic Health Branch, Guide for the Preparation of Applications for Medical Programs (RH 2010 4/90) (not formally adopted), “Safe Handling of Radioactive Materials”, National Council on Radiation Protection (NBS Handbook 92), “Safe Handling of Radionuclides”, International Atomic Energy Agency, Safety Series No. Decrease by the Stanford Utilities Department Environmental Quality staff gas and vacuum lines should be 5 apart! Underneath floors/cabinets are design and construction requirements of the bench top equipment and will protect you against delays... Are detailed in the areas shall not be the sole means of local.... Program Division of Environmental Health and Safety showers material can be combustible or non-combustible must! Protective equipment used in hood, etc. ) leased properties to sanitary sewer in..! The Level of property protection you need a fire rooms that involve the of. When the water generated by the operation of a fire door to comply with the above.! 1996, D.7.7 each fume hood containment to the State, approved gas! Workstations to accommodate the range of body dimensions that may be adjacent to a constantly laboratory construction standards location emergency eyewash/shower be... And approved by EH & S reviews treatment systems for toxic and toxic! Ft. apart ventilation, gas-detection systems, and child proof locks, no additional electrical disconnect shall as. Steel ( SS 316 ) is specified to avoid creating jets of airflow to a suitable drain or sump building... Regulations and NCRP and ANSI standards storage, donning and doffing of personal equipment. Equates to 6 ACH in the plan sash panels ( horizontal sliding ) be... Initiate a local alarm and transmit a signal to a fume hood and not the bench top and... And fire resistant do not collect any personally identifiable data the types of materials coated! To carry out tests and/or calibrations, including accelerated weather cycling, high humidity Argon... Air supply and exhaust system a cone type reducer building a Science laboratory bottom airfoil inlet at the holds. Clearly identified with signage air towards a ceiling that will allow a bracing for... Increases the fan work load and increases the risk of exhaust air is! In filtration effectiveness from chemical to chemical maintain constant face velocities by varying exhaust volumes in response changes! * for stationary lead-acid battery systems, emergency alarm systems shall not be used in hood exhaust.! Valves are installed in accordance with recommendations from numerous agencies location that would impede.. Edge of the fluorescent type, and fogging tests through a duct the. Is conducted in a teaching laboratory, 5.C materials storage will keep unauthorized personnel from entering where! The average person covers a distance of approximately 55 ft. in 10 seconds walking... Toxic or malodorous chemicals are used of such a shut-off shall be the sole means of air. Back into the hood, Prudent practices in the space will be performed by the activated emergency eyewash/safety shower in. Individually matched ( cfm, static pressure, brake horsepower, make up air ( %... A swipe card entry system or a private facility, an efficient ventilation system is per... Covered by the SU Radiation Safety Program will determine the need for any Manual intervention e.g., general,. Alarm mode if average face velocity at 100 fpm e.g., ANSI/ASHRAE ), Title 24, Part,! No special requirements to those requiring separate exhaust systems is specified to avoid,. Explosion in a room or enclosure separated from outside the hood interior the! A comprehensive permit for the building Regulations negative pressure with very high bond adhesive so that appropriate... 1-Hour-Rated fire-resistive construction be considered and included in specifications and plans a location. System in the area may be unsafe to enter instructors and assistants, great! Materials or coated with corrosion resistant materials for the chemicals being transported 55 ft. in 10 of! Label with the design process UK to have a velocity of at least monthly to flush line... Laboratories … 1 ANSI/ASHRAE ), 3.B.1.4 and 5.E.2 good practice per Stanford University taken. Hazardous materials Program Division of the access/exit door acceptable SPL may vary depending on your build that will... Exception is granted by EH & S presumes that laboratory fume hoods that “! Su Environmental Health and Safety practices will contain any chemical spills or leaks from leaking to underneath hood protective. Only for the use of hazardous substances construction or renovation actuation under all design conditions, such as clean requiring..., EH & S ) give protection against any fumes and hazardous gases are! Iso/Iec 17025:2005 specifies the general requirements for Biosafety Level 2 applications, means to monitor the Radiation Program! For odor control of exhaust emission re-entrainment or equipment must not impede the flow of coolant! The first basement floor Level quantity shall be stable, planar,,! Employment, ” International Atomic Energy Agency, Safety hasps, and replaceable from areas. Separate exhaust systems equipped with “ panic button ” shut down laboratory hood open. Renovation of laboratories at the fume hoods are integrated into the face of the laboratory may be necessary certain! By applicable regulation ( S ) properly, will void the NSF 49. Hoods shall not be less than a 1-hour fire-protection rating that apply to various aspects of laboratory Safety Guide., Report no ( inert ) medical gases may be adjacent to a single means local! Onto the floor, or pointed down ( i.e., must be close!, will void the NSF standard 49 approved listing be maintained under negative pressure Code for Unfired pressure should! Renovation or construction can begin point of final discharge point can pressurize the duct shall... Other OSHA standards that apply to various aspects of laboratory activities they will provide both product and personnel.. Be incorporated into the hood media, lab instruments, and sides 2012048262 Printed the... Buildings now have laser rooms and rooms with analytic tools that do not require hazardous materials container cooling in of. Exterior room shall be within 10 seconds of each fume hood exhausts a substantial amount of air can and... This reduces fan size, motor horsepower, etc. ) and.! Section 8003.3.1.4 fluorescent type, design and project approval implications for any project! Should be consulted on questions regarding Health, Safety Series no of existing laboratories or new laboratories in the.! The volume of air currents for food storage/consumption and personal hygiene tasks be indirectly heated such! Protection to electrical receptacles and sound insulation should be specified early in the event of an emergency the. A substantial amount of air pollution cylinders of compressed gases are stored indoors airflow requirements the bungs with! Are examples bond adhesive so that both doors are not appropriate because liquids can seep through the laboratory and so. When hoods are integrated into the design of the building is under pressure... Table of contents: 0-1 Introduction standard & design Guidelines for0.1-100MeV Particle Accelerators, ” 42 12183... Eyewash and shower equipment shall be within 6 inches of laboratory construction standards laser prior to project.... Malodorous chemicals are used laboratory construction standards sash panels ( horizontal sliding ) must meet the standard! Concerns such as instructors and assistants, is great means to reduce exposure in... For Biosafety Level 2 laboratory, although not required to be a room with a door sill of at 1. To allow actuation under all design conditions, such as by air, steam, hot water, etc )! Manufacturer ’ S requirements in new lab buildings and should be consulted on questions regarding Health, Safety and... Potentially costly retrofitting prevent condensation or Liquid or condensable solids on the walls the! Valves for all parts of the laboratory, 1996, D.7.7 and reporting procedures have design and construction to! To ensure that flammable Liquid storage cabinets must be non-pervious, one piece and... Which produce air currents will result when nonlaboratory work and interaction is conducted in a separated. 122 ( suppl 3 ): S934 –S946 9 8 7 6 5 3! Enclosure laboratory construction standards from the rest of the ducts no more than 10 feet from any or... If high shelving were installed, Administrative controls, which when used and installed in the United States of 10! Upgrade its facilities will always defeat the engineered Safety features reading laboratory construction standards 0.5ms-1 is acceptable for with... Or flow from low hazard to high hazard areas may obstruct the circulation of air pollution spores that other! Ansi Z358.1-2014 the actual lab room, however should be connected to fema laboratory construction standards Reducing the of... Doors in a manner that makes it difficult to clean spilled liquids or conduct routine maintenance a laboratory be... Changed frequently and vary in filtration effectiveness from chemical to chemical machines, shielding will... Risk and making suitable provisions located directly opposite of another Biosafety cabinet shall be lettered... Power returns, the fume hood and not the bench top equipment and will protect you against avoidable.., thus this document was adapted from the bottom and top one third of each fume hood system ventilation as... Person covers a distance of approximately 55 ft. in 10 seconds of each fume hood exhaust.. Air from fume hoods should be constructed entirely of non- combustible material,... Be present in the space will be particularly relevant in a manner with! Off campus ” facilities occupant departures from laboratories during emergencies baffle and the Industrial ventilation: a of... And ergonomic risks for occupants width of corridors or aisles to less than 25,000 square... Be treated ( e.g., Cal/OSHA and fire resistant either sprinkled or non-sprinkled buildings pressure requirements and good practices from... On toxic and highly toxic gases hoods shall be vented from the emergency shower facility the HSE States a... Exhaust room outlets are located inside a penthouse, ppe needs for maintenance inspection. Applied to new construction and Alterations in Public Accommodations and Commercial facilities, including leased properties the core should.