presented by: bill lauzon, pe lauzon life safety consulting, llc - … · 2018-06-14 · presented...
TRANSCRIPT
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Presented by:Bill Lauzon, PE
Lauzon Life Safety Consulting, LLC
[email protected]: Lauzon-LSC.com
• Wis Professional Engineer• Experienced Facility Director• Experienced AHJ• WHEA Code Committee• WHEA Education Committee
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Hosted byRiley Construction Gold WHEA Sponsor
Ben Kossow, Vice PresidentTammy Ames, Senior Project Manager
Milwaukee ▪ Kenosha ▪ Chicago
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Sept, 2014
LSC Chapter 8 “Features of Fire Protection”
Oct, 2014
LSC Chapter 7 “Means of Egress”
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LSC Chapter 8 “Features of Fire Protection”
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LSC Chapter 8 “Features of Fire Protection”
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“HOW-to”NOT
“WHEN-to”
(“WHEN-TO” is specified in the Occupancy Chapters)
#1
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4.4.2.2 - Specific Occupancy Requirements
GOVERN OVER
the General Requirements
In other words, Chapters 18/19
OVER-RULE Chapters 7-8-9-10
#2
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1st Read the OCCUPANCY Chapter
Go to the GENERAL Chapter (WHEN directed)
Then
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LSP should display all the “Features
of Fire Protection”
• Accurate• Room ID• Carry-round size• Colorize• Keynote
Explanations• Good Legend
NOT code required
#3
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• Good Legend
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LSC Chapter 8 “Features of Fire Protection”
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NFPA: Different Construction Types require:
1. 2 Hr Vertically Aligned Fire Barrier
18/19.1.6.2 – Requires compliance with 8.2
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IBC: Different Construction Types require:
2 or 3 Hr Vertically Aligned Fire WALL
503.1 – Each portion of a building separated by fire walls…shall be considered a separate building
Table 503 on Allowable Bldg Heights & Areas are applied to each individually
DIFFERENT
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Fire WALL versus Fire BARRIER
Fire WALL: used by IBC (International Building Code). Applies to all commercial buildings; (Structural Design & Fire Rating)
Fire BARRIER: used by NFPA & IBC. Applies to all commercial buildings & jurisdictions that adopted the LSC (No Structural Design; only Fire Rating)
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NFPA: Different Construction Types require:
1. 2 Hr Vertically Aligned Fire Barrier(per NFPA 221, Chapter 3)
2. (or) Least Constr Type applies
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CONSTRUCTION TYPES
• Combustibility• Fire Protection
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CONSTRUCTION TYPESNon-Combustible Construction (I & II)
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Concrete Steel
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CONSTRUCTION TYPESCombustible Construction
(III, IV, V)
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Wood & Masonry or Steel (III)
Heavy Timber (IV)
Wood (V)
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“#” hrs of Fire Resistance
21
PROTECTED(111) = Protected(211) = Protected(222) = Protected(332) = Protected(443) = Protected
Protected vs. Un-Protected
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Protected vs. Un-Protected
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(000) = Un-Protected(200) = Un-Protected(2HH)= Un-Protected
UN-PROTECTEDBare/Exposed
Structural Members(non-concrete)
“0” hrs of Fire Resistance
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HEALTH CARE CONSTRUCTION TYPE
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NFPA: Different Construction Types require:
1. 2 Hr Vertically Aligned Fire Barrier
2. (or) Least Constr Type applies
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HEALTH CARE CONSTRUCTION TYPE
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Construction Type Hierarchy“lowest” unseparated type applies to whole building
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HEALTH CARE CONSTRUCTION TYPE
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HEALTH CARE CONSTRUCTION TYPE
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NFPA IBC
Per NFPA 220
Per IBC 602
IAIAIBIIAIIBIIIAIIIBIVVAVB
Can be Confusing
(Always describe using both code methods)
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Any Questions?
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LSC Chapter 8 “Features of Fire Protection”
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Consists of :• Floors & Openings (stairs, shafts)• Walls & Openings (doors/windows)
The Occupancy Chapters define “WHEN-TO” & “WHAT LEVEL” of
Compartmentalization
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Health care occupancies are built with a combination of
“boxes” or compartments …
whose job is to slow down the spread of
fire & smoke
18/19.2.2 – Requires compliance with 8.2.2
Floor 1
Floor 2
Floor 3
Floor 4
Floor 5
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Each Floor has a Fire Resistance Rating
& is a Smoke
CompartmentFloor 1
Floor 2
Floor 3
Floor 4
Floor 5
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Corridors are separated from rooms by “smoke-tight” walls & ceilings
2hr
S-T
(4 or more stories, sprinkled)
EACH HEALTH CARE FLOOR
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Stairwells are surrounded by walls with 2-hour fire resistive ratings
2hr
S-T
2hr 2hr
(4 or more stories, sprinkled)
EACH HEALTH CARE FLOOR
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Rooms with significant combustibles are surrounded by walls with 1-hour fire resistive ratings
2hr
S-T
1hr
2hr 2hr
(4 or more stories, sprinkled)
EACH HEALTH CARE FLOOR
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Each Floor is divided by Smoke Barrier Walls into compartments which have walls with
1-hour fire resistive ratings2hr
S-T
1hr1hr
2hr 2hr
(4 or more stories, sprinkled)
EACH HEALTH CARE FLOOR
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ASH SERVICE WORK PRACTICES 37
Health Care is the 2nd most inspected type of occupancy
2hr
S-T
1hr1hr
2hr 2hr
(4 or more stories, sprinkled)
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LSC Chapter 8 “Features of Fire Protection”
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Design must satisfy tests of NFPA 251
• Floor-Ceiling Assemblies • Wall Assemblies
Typical Test Agencies:• UL & ULC• FM• Intertek
Save ALL Rating Documents(where you can
immediately find them)
(IBC uses ASTM E119 or UL 263)
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Save ALL Rating Documents(where you can
immediately find them)
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Design must satisfy tests of NFPA 252
• Door/Frame Assemblies
Install per NFPA 80
Must Self-Close Save ALL Rating Documents(where you can
immediately find them)(IBC uses various test stds)
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Sept, 2014
LSC Chapter 8 “Features of Fire Protection”
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MOST violated LS “Rule”:
NEVER MODIFY* a listed door or frame
* Without documented approval of the door/frame manufacturer
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MOST violated LS “Rule”:
NEVER MODIFY* a listed door or frame
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Design must satisfy tests of NFPA 257• Use in <=1 hr wall
Can use any size fire-rated glass• Install per NFPA 80
• Max 25% of wall area
• Wired Glass (max sizes: 100si/1296si)
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Fire Ratings:
• 2 hr wall 1-1/2 hr
• 1 hr wall 1 hr (vertical openings)
¾ hr (other) Smoke Barrier =20 min
• ½ hr wall 20 min
Openings must “restrict the movement of smoke”
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Tidbit to know:Doors are usually rated LESS
than the wall they are in
?Wall Door
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BECAUSE Combustible materials are not placed in door opening
So, the code permits fire doors to be “de-rated” about a ½ hr.
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• Ducts: follow 9.2.1 (fire stop/damper)
• Construction Joints
• Other: must seal with
• Material w/wall rating• Approved device
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Sept, 2014
LSC Chapter 8 “Features of Fire Protection”
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Large Amount of Fire Stop Sealant INVITES investigation
FAIL: 1/8” thick in a 2-hr Wall
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Fire Stop Labels Can be Filled Out INCORRECTLY !
WRONG:CAJ is for concrete walls & floors
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Any Questions?
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LSC Chapter 8 “Features of Fire Protection”
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DO NOT confuse with SMOKE BARRIER !
Don’t call either a“Smoke Wall”
Because there is NO such thing in
The code
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• Called “Corridors” in Health Care
• Limit the “Transfer of Smoke”
• Constructed floor to deck above(may stop at suspended ceiling if it’s continuous, has sealed joint, no ceiling plenum)
Compliance with 8.2.4 is NOT referenced anywhere
in Chapter 18 or 19
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• Doors: No louvers, Clearances per NFPA 80, self-closing (if required by occupancy)
• Penetrations: • Same rating as wall or
• Sealed with approved device
• Ducts: Dampers w/Detectors
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LSC Chapter 8 “Features of Fire Protection”
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Any “hole” through a floor is a VERTICAL OPENING
18/19.3.1 – Requires compliance with 8.2.5
Vertical Openings
5 StoryBuilding
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Typical Vertical Openings• Stairs• Elevators• Dumbwaiters• “Atriums”• Ventilation Shafts• Pipe Shafts
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8.2.5.2 – All Openings through floors shall be ENCLOSED
with Fire Barrier Walls !
General Rules:
Not applicable to code-designed escalators, expansion joints, pneumatic tubes, mail chutes
EVERY Floor is a SMOKE BARRIER
(Impact on Elevator Lobby Doors)
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8.2.5.4 – Fire Barrier Wall RatingsGeneral Rule:
• 2 hr – Connecting 4 or more stories• 1 hr – Connecting 3 or less stories• ½ hr – Existing Enclosures in Existing Bldgs
[Note: 19.3.1.1 requires 1 hr enclosure]
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Most Inspectors HATE UN-ENCLOSEDVertical Openings
Because the LSP typically does not explain how they meet one of the exceptions to the
enclosure requirement& the building owner usually can’t explain
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8.2.5.2 – All Openings through floors shall be ENCLOSED
with Fire Barrier Walls !
General Rule:
4 Exceptions
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8.2.5.5 – Enclosure Exception #1: “Mini-Atrium”
[Not permitted in Health Care per 18/19.3.1.1]9 Conditions:
1. If permitted by Occupancy chapter2. Max 3 stories3. Lowest or next is a street floor4. Communicating space is open5. Communicating space enclosed by 1-hr fire barrier6. Communicating space ordinary hazard or fully sprinkled7. Egress capacity for all floors that are open8. Access to an exit at every level9. Outside of communicating space has an exit without using
the communicating space
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8.2.5.6 – Enclosure Exception #2: “Atrium”
7 Conditions:1. If not prohibited by occupancy chapter2. 1-hr fire barrier enclosed3. Exit Access & Exit Discharge may go thru atrium 4. Atrium occupancy is low/medium hazard5. Building is fully sprinkled6. Smoke-Layer ENGINEERING ANALYSIS7. SMOKE CONTROL System
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8.2.5.7 – Enclosure Exception #3: “Tall-Room”
4 Conditions:1. Max 2 stories2. Not an exit enclosure3. Pierce only one floor4. Separated from rest of bldg by fire barriers with
same rating as the floor
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8.2.5.7 – Enclosure Exception #3: “Tall-Room”
“Floor” wraps up/down to form a
tall spaceFloor 1
Floor 2
Floor 3
Floor 4
Floor 5
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8.2.5.8 – Enclosure Exception #4: “Non-Concealed Space”
6 Conditions:1. If permitted by occupancy chapter2. Not enclosed within the building3. Max 2 stories4. SEPARATED from rest of bldg by fire barrier5. SEPARATED from corridors6. CANNOT EGRESS through the opening
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8.2.5.3 - SHAFTSRooms open to a shaft
at top/bottom of a shaft (i.e. no damper or closure)
shall be enclosed as a shaft
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8.2.5.9 – ELEVATOR HOIST WAY
3 or fewer elevator cars can be in the
SAME hoist way enclosure
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Any Questions?
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LSC Chapter 8 “Features of Fire Protection”
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Definition: “An intermediate level between the floor and the ceiling of any room or space” (3.3.126)
Max size: 1/3 the open area of the room
No Limit on the number of Mezzanines
Openness: Entire mezzanine must be open and visible from the room if >10 occupants
Compliance with 8.2.6 is NOT referenced anywhere in Chapter 18 or 19
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LSC Chapter 8 “Features of Fire Protection”
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In NEW Type III, IV, or V Construction with any material > Class A flame spread openings must be fire stopped or draft stopped
In EXISTING Construction openings must be fire stopped or draft stopped
Compliance with 8.2.7 is NOT referenced anywhere in Chapter 18 or 19
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LSC Chapter 8 “Features of Fire Protection”
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18/19.3.7 – Defines the location & size of Smoke Compartments, wall ratings & other details
18/19.3.7.3 – Requires compliance with 8.3
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Wall/Floor must be Continuous • From outside wall to outside wall, or• From floor to floor, or• From smoke barrier to smoke barrier
• Through all concealed spaces, other than interstitial spaces with floors with same rating as the smoke barrier
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8.3.4.1 – Minimum Clearance Necessary • No undercuts, louvers, grills
8.3.4.2 – Door Rating• Min 20 min rating
8.3.4.3 – Door Operation• Self-closing or automatic-closing
Same as in Health Care 18/19, which has added requirements
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8.3.5.1 – Required Locations• Each air transfer location• Each duct penetration
[Same requirements as in Health Care 18/19]
Doesn’t include the exception for NOT having Smoke Dampers if fully ducted & sprinkled
Exceptions:1. Engineered Smoke Control System2. AHU controlled to prevent recirculation of
exhaust/return in a fire emergency3. AHU serves only one smoke compartment4. Floor penetrations
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8.3.5.2 – Duct Dampers close on detection of smoke per NFPA 72
Exceptions:1. Duct detector not needed if
detector built into the door closer2. Existing detectors exempt from
NFPA 72
8.3.5.3 – Transfer Dampers close on detection of smoke per NFPA 72
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Penetrations & junctions with rated & smoke barrier walls must seal with
• Material w/same smoke resistance as barrier, or
• Construction Joints• Approved device
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Sept, 2014
LSC Chapter 8 “Features of Fire Protection”
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Any Questions?
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LSC Chapter 8 “Features of Fire Protection”
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18/19.3.1 – Defines the location & size of hazardous areas, wall ratings & other details
18/19.3.2.1 – Requires compliance with 8.4
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HAZARDOUS STORAGE AREAS
0-50 SF 51-99 SF 100 SF & over
NEW No Requirements
1-Hr Rated Enclosure
EXISTING No Requirements OR 1-Hr Rated Enclosure
HEALTH CARE HAZARDOUS AREAS
Sprinkler & Smoke-Tight
Smoke Tight
LSP should show which requirement the room intends to comply with
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Hazardous is anything “Greater Than Normal”
in the occupancy
(In the Opinion of the AHJ)
In health care, CMS considers “normal” to be the amount of combustibles found in a
typical patient/resident room
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Hazards “Greater Than Normal” in occupancy• 1-hr fire barrier, or• Sprinkle space
• If HIGH hazard, must sprinkle & enclose with 1-hr fire barrier
• If NEW (with rated walls), must sprinkle & treat walls as a smoke partition
Examples of 4.4.2.2: Specific Occupancy Requirements Govern over the General Requirement
New: “and”
New: “fire barrier”
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Storage & handling per:• NFPA 30 – Flammable & Combustible Liquids• NFPA 54 – National Fuel Gas Code• NFPA 58 – Liquefied Petroleum Code
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NFPA 30 – Flammable & Combustible Liquids Standard• Max Size of Container: (depends on Class of Liq & type of
container) 1 pt to 1g in glass; 1g to 5g in metal; 2g to 5g in safety can• Max 60 Gallons of Class I,II in a Storage Cabinet• Max 120 Gallons Total in a Storage Cabinet• Max of 3 Flammable Liq Cabinets within any 2-hr rated fire area
Flammable & Combustible LiquidsClass Flash Point Boiling PointIA Flam Liq <73 <100 IB Flam Liq <73 >100IC Flam Liq 73-100II Comb Liq 100-140IIIA Comb Liq 140-200IIIB Comb Liq >200 (All Temps in 0F)
Note: a 10 DAY SUPPLY of liquids used for building maintenance, painting, etc.. are permitted to be stored temporarily in closed containers OUTSIDE of Flammable Liquids Cabinets.(NFPA 30-98, 4-5.1.4)
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Comply with:• NFPA 45 – Laboratories Using Chemicals• If in Health Care & Medical Offices, NFPA 99
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Ordinary hazard Lab has less than: (SOM, Append I, K31, Interpretive Guidelines]• 10 gal flammable liq in use outside flam liq cabinet (NFPA 30-98, 4-5.5.3)
• 25 gal flam liq in safety cans outside of flam liq cabinet (NFPA 30-98, 4-5.5.4)
• 60 gal combustible liq outside flam liq cabinet (NFPA 30-98, 4-5.5.5)
• 60 gal in a flammable liquids cabinet.
Follow NFPA 45 – General Laboratory Standards (Chapter 3-Construction)
Follow NFPA 99 – Health Care Laboratory Standards (Chapter 10) –1 hr enclosure walls
Follow NFPA 101 – Hazardous Room Requirements(18/19.3.2.1 & .2) – 1 hr enclosure walls or sprinkle & smoke-tight
Severe hazard Lab exceeds the above limits, a lab that uses enough combustibles that would sustain a fire that would breach a 1-hr wall.
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LSC Chapter 8 “Features of Fire Protection”
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Presented by:Bill Lauzon, PE
Lauzon Life Safety Consulting, LLC
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LSC Chapter 8 “Features of Fire Protection”