It just so happens that our local AHJ put together the New York State requirements for CO2 for an unusual application here.
"Code requirements for carbon dioxide:
2020 NYS Fire Code
5307.4 Carbon Dioxide Enrichment Systems
The design, installation and maintenance of carbon
dioxide enrichment systems with more than 100 pounds (45.4 kg) of carbon dioxide, and carbon dioxide enrichment
systems with any quantity of carbon dioxide having a remote fill connection, shall comply with Sections 5307.4.1 through 5307.4.7.
5307.4.1 Documentation
The following information shall be provided with the application for permit:
5307.4.2 Equipment
Pressure relief, vent piping, fill indicators, fill connections, vent terminations, piping systems and
the storage, use and handling of
the carbon dioxide shall be in accordance with Chapter 53 and NFPA 55.
5307.4.3 Gas Detection System
A gas
detection system complying with Section 916 shall be provided in rooms or indoor areas
in which the carbon dioxide enrichment process is located, in rooms or indoor areas in which container systems are
located, and in other areas where carbon dioxide is expected to accumulate. Carbon dioxide sensors shall be provided within 12 inches (305 mm) of the floor in the area where the gas is expected to accumulate or leaks are most likely to occur. The system shall
be designed as follows:
5307.4.3.1 System Activation
Activation of the low-level gas
detection system alarm shall automatically:
Activation of the high-level gas
detection system alarm shall automatically:
5307.4.4 Pressurization and Ventilation
Rooms or indoor areas
in which carbon dioxide enrichment is provided shall be maintained at a negative pressure in relation to the surrounding areas in the building. A mechanical ventilation system shall
be provided in accordance with the Mechanical Code of New York State that complies with all of the following:
5307.4.5 Signage
Hazard identification signs shall be posted at the entrance to the room and indoor areas
where the carbon dioxide enrichment process is located, and at the entrance to the room or indoor area where
the carbon dioxide containers are located. The sign shall be not less than 8 inches (200 mm) in width and 6 inches (150 mm) in
height and indicate:
CAUTION Ñ CARBON DIOXIDE GAS
VENTILATE THE AREA BEFORE ENTERING.
A HIGH CARBON DIOXIDE (CO2)
GAS CONCENTRATION
IN THIS AREA
CAN CAUSE ASPHYXIATION.
5307.4.6 Seismic and Structural Design
Carbon dioxide system containers and
piping shall comply with the seismic design requirements in Chapter 16 of the Building
Code of New York State and shall not exceed the floor loading limitation of the building.
5307.4.7 Container Refilling
Carbon dioxide containers located indoors shall
not be refilled unless filled from a remote connection located outdoors."
Ellen
Ellen Sweet, MS, CCHO
Laboratory Ventilation Specialist
Department of Environment, Health, and Safety
Cornell University
American Chemical Society, Division of Chemical Health and Safety
315-730-8896
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
On Behalf Of Margaret Rakas
Sent: Thursday, October 28, 2021 10:11 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] Space Requirements for in-use gas cylinders (nonflammable)
Good morning,
Are there any requirements or best practices for in-use gas cylinders with respect to sq footage of lab space? I have a PI who wants to put 3 gas cylinders (2 compressed air, 1 CO2) in a very small (138 sq ft) space where there will be
a light sheet microscope (the gases are for the microscope). I am fairly certain (but am short on details) the CO2 will be used as a freezing agent for very small amounts of tissue. Of course the cylinders will be secured, and due to room configuration would
be out of the way of the single exit...but I cannot find anything in the regulations regarding a maximum storage capacity... I am going to bring in our compressed gas supplier to see if somehow we can use one compressed air cylinder to supply two different
pressures (I am trying to get those details too..)
If your institution has a light sheet microscope I would love to talk with you!
I could not do my job without this listserv, so thanks everyone in advance.
Margaret
--
Margaret A. Rakas, Ph.D.
Lab Safety & Compliance Director
Clark Science Center
413-585-3877 (p)
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