The trouble with the article is that if you vent the cabinet with a dedicated fan you still lose the fire rating of the cabinet. (The negative pressure inside pulls in more air in the event of a fire.) The NFPA drawing was addressing a different issue with was the wording in the IMC that required the cabinet to be vented outside the building. Many inspectors took this to mean connecting the cabinet to a building exhaust system was not allowed.

Richard Palluzi
PE, CSP

Pilot plant and laboratory consulting, safety, design, reviews, and training
www.linkedin.com/in/richardppalluzillc/

Richard P Palluzi LLC
72 Summit Drive
Basking Ridge, NJ 07920
rpalluzi**At_Symbol_Here**verizon.net
908-285-3782

-----Original Message-----
From: ACS Division of Chemical Health and Safety On Behalf Of Dr Bob
Sent: Tuesday, January 19, 2021 9:00 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: Re: [DCHAS-L] Vented vs Unvented Cabinets

Hello Panos!

This article may help your positioning on the issues. It covers a wide variety of situations.

https://www.flowsciences.com/venting-fume-hood-base-cabinets/

Best regards,

Dr. Bob Haugen

-----Original Message-----
From: ACS Division of Chemical Health and Safety On Behalf Of Argyropoulos, Panos
Sent: Monday, January 18, 2021 2:59 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] Vented vs Unvented Cabinets

Hello everyone,

I just want some opinions and references to understand the arguments for or against vented cabinets. From what I understand, flammable cabinets should be grounded but not vented because there is a concern that the fumes are flammable whereas anything containing non-flammable materials should be in a vented cabinet.

Thanks

Panos Argyropoulos, M.Sc.
Chemical Safety Officer - Health, Safety and Environment Branch National Research Council Canada / Government of Canada Building M-22 ‰?¢ Room 100-17 ‰?¢ 1200 Montreal Rd. ‰?¢ Ottawa, Ontario ‰?¢ K1A 0R6 Panos.Argyropoulos**At_Symbol_Here**nrc-cnrc.gc.ca | Cell: 343-999-8836

Agent de sÌ©curitÌ© chimique - Direction de l‰??environnement et de la santÌ© et sÌ©curitÌ© au travail Conseil national de recherches Canada / Gouvernement du Canada Ì?difice M-22 ‰?¢ pi̬ce 100-17 ‰?¢ 1200 chemin MontrÌ©al ‰?¢ Ottawa, Ontario ‰?¢ K1A 0R6 Panos.Argyropoulos**At_Symbol_Here**nrc-cnrc.gc.ca | Cell : 343-999-8836

-----Original Message-----
From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**Princeton.EDU] On Behalf Of DCHAS Membership Chair
Sent: January 18, 2021 6:50 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] Chemical Safety headlines (8 articles)

Chemical Safety Headlines From Google
Monday, January 18, 2021 at 6:48:40 AM

A service of the ACS Division of Chemical Health and Safety
Connecting Chemistry and Safety at http://www.dchas.org
All article summaries and tags are archived at http://pinboard.in/u:dchas

Table of Contents (8 articles)

PETROLEUM INCIDENT IN EUREKA
Tags: us_CA, public, release, response, gasoline

MASSIVE FIRE IN ERNAKULAM GUTS TWO FACTORIES AT EDAYAR INDUSTRIAL AREA
Tags: India, industrial, fire, response, solvent

1 PERSON HURT IN HASH OIL EXPLOSION AT CITY HEIGHTS APARTMENT BUILDING
Tags: us_CA, public, explosion, injury, clandestine_lab

CHEMICAL SPILL IN CHESANING LEADS TO HOME EVACUATIONS
Tags: us_MI, public, release, response, other_chemical

MAKERS OF EXPLOSIVES PUSH FOR END TO OVERLAPPING REGULATIONS, WHILE LABOR UNION VOICES CONCERNS
Tags: industrial, discovery, environmental, explosives

FIRE TRIANGLE
Tags: us_TX, public, discovery, environmental

AVIS ANTIQUE STORE DESTROYED BY FIRE
Tags: us_PA, public, fire, response, other_chemical

FUEL LEAK LEADS TO ABANDONED CAR EXPLODING IN SE PORTLAND
Tags: us_OR, public, explosion, response, gasoline

---------------------------------------------

PETROLEUM INCIDENT IN EUREKA
https://lostcoastoutpost.com/hazmat/21-0258/
Tags: us_CA, public, release, response, gasoline

A new hazardous materials incident involving petroleum has been reported to the California Office of Emergency Services.

According to a report published by the office, the incident took place at or near waterways in Eureka at around 4:10 p.m. today.

About 90 gallons of a substance described as ‰??gasoline‰?? were released to the environment, according to the person who called in the report.

This was the third hazardous materials incident recorded by the Office of Emergency Services in the Eureka area this year and the fifth petroleum spill in the county overall.

---------------------------------------------

MASSIVE FIRE IN ERNAKULAM GUTS TWO FACTORIES AT EDAYAR INDUSTRIAL AREA
https://www.thenewsminute.com/article/massive-fire-ernakulam-guts-two-factories-edayar-industrial-area-141628
Tags: India, industrial, fire, response, solvent

A massive fire that broke out in Ernakulam‰??s Edayar industrial belt in the wee hours of Saturday night, gutted two factories in the region. The fire that broke out in Orion Chemicals, an organic solvent factory later spread to the nearby rubber processing factory. According to the police, no casualties have been reported.

Edayar industrial belt is a region along the Periyar River near Eloor. The area is home to hundreds of industries. Visuals of the incident circulating on social media show dense smoke emanating from the factories. In one of the videos, a huge ball of fire can be seen rising up from the factory amidst the smoke.

---------------------------------------------

1 PERSON HURT IN HASH OIL EXPLOSION AT CITY HEIGHTS APARTMENT BUILDING https://www.10news.com/news/local-news/1-person-hurt-in-hash-oil-explosion-at-city-heights-apartment-building
Tags: us_CA, public, explosion, injury, clandestine_lab

SAN DIEGO (KGTV) -- One person was burned Friday in what San Diego authorities are calling a hash oil explosion at a City Heights apartment complex.

San Diego Fire-Rescue Department officials said crews responded to reports of what was described as an explosion at around 8 a.m. at an apartment building near the 3700 block of University Avenue.

---------------------------------------------

CHEMICAL SPILL IN CHESANING LEADS TO HOME EVACUATIONS https://www.mlive.com/news/saginaw-bay-city/2021/01/chemical-spill-in-chesaning-leads-to-home-evacuations.html
Tags: us_MI, public, release, response, other_chemical

CHESANING, MI ‰?? A chemical spill in Chesaning resulted in several homes being evacuated before the situation was quelled.

At 10:46 a.m. on Thursday, Jan. 14, the Chesaning-Brady Fire Department was notified of an unknown chemical leaking from a tank in the 15000 block of Sharon Road on property owned by Elite Excavating. Upon further investigation, they called in mutual aid from the Saginaw County Hazardous Material Team.

An area from Sharon and Baldwin roads south to Chesaning Village limits was evacuated. To keep contamination from reaching the Shiawassee River, crews also erected a barricade along the riverbank.

The Chesaning-Brady Fire Station No. 1 served as a shelter site for displaced residents.

Responders determined the leaking material was an acid-base. The company Al Miller/Bartz Septic Service had been contracted to remove an old septic tank located on the property.

---------------------------------------------

MAKERS OF EXPLOSIVES PUSH FOR END TO OVERLAPPING REGULATIONS, WHILE LABOR UNION VOICES CONCERNS
https://www.marketwatch.com/story/makers-of-explosives-push-for-end-to-overlapping-regulations-while-labor-union-voices-concerns-11610727683
Tags: industrial, discovery, environmental, explosives

WASHINGTON ‰?? Chemical facilities would face fewer regulations under a proposed rule change from the Cybersecurity and Infrastructure Security Agency that targets 49 explosive chemicals.

These ‰??Division 1.1‰?? explosives, which include black powder and desensitized nitroglycerine, are currently regulated by both CISA, which is part of the Department of Homeland Security, and the Bureau of Alcohol, Tobacco, Firearms and Explosives, which is an arm of the Justice Department.

In its Jan. 6 filing for the proposed rule change, CISA said that removing the explosives from its ‰??Chemical Facility Anti-Terrorism Standards‰?? and relying on ATF for oversight would mean facilities would no longer face the burden of complying with both agencies‰?? requirements. High-risk chemical facilities, including explosives manufacturers, warehouses, distributors and end users of the products such as aerospace, oil and gas, construction and mining facilities, could benefit from the change, according to the proposed rule.

---------------------------------------------

FIRE TRIANGLE
https://www.tpr.org/podcast/fire-triangle
Tags: us_TX, public, discovery, environmental

In the past two years, half a dozen chemical disasters have ripped apart Texas neighborhoods, sent dozens of people to the hospital and killed unsuspecting bystanders as well as workers.

Texas Public Radio and Houston Public Media spent the better part of 2020 investigating these events. Our team has met with victims whose lives have been changed by chemical disasters. We‰??ve spoken with community advocates who are fighting back. We‰??ve examined the frayed patchwork of local, state and federal policies around chemical safety. And we‰??ve pulled back the curtains to reveal what‰??s going on behind the scenes with competing federal agencies in the aftermath of these disasters.

We want to answer the question: why do so many chemical disasters keep happening in Texas, and what‰??if anything‰??is being done to prevent more?

---------------------------------------------

AVIS ANTIQUE STORE DESTROYED BY FIRE
https://www.lockhaven.com/news/community/2021/01/avis-antique-store-destroyed-by-fire/
Tags: us_PA, public, fire, response, other_chemical

After the heavy smoke cleared and firefighters took their equipment back to the fire station, a huge pile of items, including antiques and fallen bricks, surrounded the Avis building at 8 W. Central Ave., which was destroyed by fire Thursday. Yellow safety tape surrounds the area where the two-story brick building stood. John Powell, owner of the antique store, said he was lacquering objects in the first floor of the building when a chemical sparked the blaze, which quickly spread to the second floor and roof. Powell suffered minor burns and two occupants of apartments on the second floor were not injured. Attempts to reach Avis fire officials for more information about the fire were unsuccessful. Avis Borough maintenance workers are shown at the site Friday morning.

---------------------------------------------

FUEL LEAK LEADS TO ABANDONED CAR EXPLODING IN SE PORTLAND https://www.koin.com/news/fuel-leak-leads-to-abandoned-car-exploding-in-se-portland/
Tags: us_OR, public, explosion, response, gasoline

PORTLAND, Ore. (KOIN) ‰?? Portland Fire & Rescue extinguished a car that exploded into flames late Friday in the Woodstock neighborhood.

Crews were sent to the 6500 block of SE Woodstock Boulevard on reports that an abandoned car was on fire. Upon their arrival, firefighters reported the vehicle being fully involved. Crews were able to knock down the fire using a dry chemical extinguisher.

PF&R said the fire was sparked by a fuel leak.

No injuries or damage outside of the vehicle were reported. Neighbors said the car had been parked in the same spot for the past month.

---------------------------------------------

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