Michigan Administrative Code › Department - Licensing and Regulatory Affairs › Bureau of Fire Services › Storage and Handling of Gaseous and Liquefied Hydrogen Systems › Part 2 - STORAGE AND HANDLING OF GASEOUS HYDROGEN NFPA 50A › Chapter 1 - General information › Section R. 29.7014 - Definitions

Current through Vol. 24-12, July 15, 2024
Rule 14. Section 1-5 of the storage and handling of
						gaseous and Liquefied H2 code is added, and Section
						1-5.1 is reproduced from NFPA 50A as follows: 1-5 Definitions.
(a) "ANSI" means the american national
					 standards institute.
(b) "Approved"
					 means acceptable to the department.
(c) "ASME" means the american society of
					 mechanical engineers.
(d)
					 "Authority having jurisdiction" means the department.
(e) "Automatic emergency shutoff valve" means
					 a designated fail-safe automatic closing valve designed to shutoff the flow of
					 gases or liquids that is initiated by a control system where the control system
					 is activated by either manual or automatic means.
(f) "Bulk storage" means a single container
					 or containers, where all containers draw down at the same time.
(g) "Cargo transport container" means a
					 mobile unit designed to transport gaseous or liquefied
					 H2.
(h)
					 "Cascade storage system" means storage in containers or cylinders arranged in
					 banks where each bank acts as 1 large container. The banks are separated by
					 switching valves to provide sequential drawdown of the banks.
The bank may consist of 1 or more containers or
						cylinders.
(i) "Cathodic
					 protection" means a technique to prevent the corrosion of a metal surface by
					 making the surface the cathode of an electrochemical cell. This protection
					 renders a metallic container or piping component negatively charged with
					 respect to its environment. This protection shall be designed by a corrosion
					 expert as defined by these rules.
(j) "Cathodic protection tester" means a
					 person who can demonstrate an understanding of the principles and measurements
					 of all common types of cathodic protection systems applicable to metal piping
					 and container systems and who has education and experience in soil resistivity,
					 stray current, structure-to-soil potential, and component electrical isolation
					 measurements of metal piping and container systems. The person shall be
					 certified as being qualified by the national association of corrosion engineers
					 (NACE) international.
(k)
					 "Composite container" means a container fabricated of 2 or more materials that
					 interact to facilitate the container design criteria.
(l) "Compression discharge pressure" means
					 the varying pressure at the point of discharge from the compressor.
(m) "CGA" means the compressed gas
					 association.
(n) "Container" means
					 a pressure vessel or cylinder used to store
					 H2.
(o)
					 "Container appurtenances" means devices connected to container openings for
					 safety, control, or operating purposes.
(p) "Container system" means a container or
					 combination of containers and all attached appurtenances, valves, and
					 piping.
(q) "Container valve" means
					 a valve connected directly to the container outlet.
(r) "Continuous gas detection system" means a
					 gas detection system in which the instrument is maintained in continuous
					 operation.
(s) "Corrosion expert"
					 means a person who, by reason of thorough knowledge of the physical sciences
					 and the principals of engineering and mathematics acquired by a professional
					 education and related practical experience, is qualified to engage in the
					 practice of corrosion control of container systems. The person shall be
					 certificated as being qualified by NACE, as a senior corrosion technologist, a
					 cathodic protection specialist, or a corrosion specialist or be a registered
					 engineer who has certification and licensing that includes education and
					 experience in corrosion control.
(t) "Corrosion protection" means protecting a
					 container system to prevent the degradation of the metal through oxidation or
					 reactivity with its environment.
(u) "Cylinder" means a container constructed
					 in accordance with the United States Department of Transportation (U.S. DOT)
					 specifications, title 49, code of federal regulations (CFR), parts
					 171-190.
(v) "Department" means the
					 department of environmental quality.
(w) "Director" means the director of the
					 department of environmental quality.
(x) "Dispensing station" means an
					 H2 installation that dispenses H2
					 from storage containers into fuel supply containers or into portable cylinders
					 by means of a compressor, reformer, vaporizer, or pressure booster.
(y) "Emergency shutdown device (ESD)" means a
					 device that closes all fueling operations within the fueling facility from
					 either local or remote locations.
(z) "Excess flow control" means to limit or
					 stop the flow of H2 gas from a source of supply when
					 there is a rupture, break, or 'open valve to atmosphere' condition that may
					 present a hazard to personnel or the environment.
(aa) "Fail-safe" means a design feature that
					 provides for the maintenance of safe operating conditions in the event of a
					 malfunction of control devices or an interruption of an energy
					 source.
(bb) "Fast fill station"
					 means a storage and dispensing system designed to fill motor vehicle fuel tanks
					 with compressed, gasified H2. The vehicle fuel tank is
					 filled by connecting to a system designed to provide a fuel fill rate above 12
					 scfm.
(cc) "Fixed liquid level
					 device" means a device that indicates when the container is filled to its
					 maximum permitted liquid filling volume.
(dd) "Flow-through process container" means a
					 container that forms an integral part of a production process through which
					 there is a steady, variable, recurring, or intermittent flow of materials
					 during the operation of the process and the container is utilized to carry out
					 or control the heating, cooling, mixing, blending, separating, metering, or
					 chemical reaction of materials. The processing is done on a regular basis and
					 it is the primary function of the container. A flow-through process container
					 does not include a container that is used for the storage of materials before
					 its introduction into the production process or for the storage of finished
					 products or by-products from the production process or a container that is only
					 used to recirculate materials.
(ee)
					 "Fuel dispenser system" means all the pumps, meters, piping, hose, and controls
					 used for the delivery of fuel.
(ff)
					 "Fueling connector" means a mating device at the refueling station, including
					 shutoff valves that connect the fueling dispenser hose to the vehicle fuel
					 filling system receptacle for the transfer of liquid or vapor.
(gg) "Gallon water capacity (wc)" means the
					 amount of water in gallons at 60 degrees Fahrenheit (15 degrees Celsius)
					 required to fill a container.
(hh)
					 "Gas detection system" means a grouping of 1 or more sensors capable of
					 detecting an H2 leak at specified concentrations and
					 activating alarms and safety systems.
(ii) "Gaseous H2
					 system" means a system in which the H2 is delivered,
					 stored, and discharged in the gaseous form including the piping system. The
					 gaseous H2 system terminates at the point where the
					 H2 is dispensed.
(jj) "Hydrogen (H2)"
					 means the simplest and lightest element in the known universe, which exists as
					 a gas except at low cryogenic temperatures.H2 gas is a
					 colorless, odorless and highly flammable gas when mixed with oxygen over a wide
					 range of concentrations. H2 forms water when combusted,
					 or when otherwise joined with oxygen, as within a fuel cell.
(kk) "Hydrogen code" means the storage and
					 handling of gaseous and liquefied H2 rules as
					 promulgated by the department.
(ll)
					 "Hydrogen gas vehicle (HGV) or vehicle" means a self-propelled device on land,
					 in, on, or by which any person or property is or may be transported or drawn
					 upon, except for a device exclusively moved by human power, and which has the
					 capability to use H2 gas as an engine fuel.
(mm) "Ignition source" means any item or
					 substance capable of an energy release of type and magnitude sufficient to
					 ignite any flammable mixture of gases or vapors that could occur at the
					 site.
(nn) "kPa" means absolute
					 pressure in kilo-Pascals.
(oo)
					 "kPag" means gauge pressure in kilo-Pascals.
(pp) "Labeled" means equipment or materials
					 to which has been attached a label, symbol, or other identifying mark of an
					 organization that is acceptable to the department and concerned with product
					 evaluation, that maintains periodic inspection of production of labeled
					 equipment or materials, and by whose labeling the manufacturer indicates
					 compliance with accepted or approved standards of construction and or
					 performance.
(qq) "Listed" means
					 equipment, materials, or services included in a list published by an
					 organization that is acceptable to the department and concerned with evaluation
					 of products or services, that maintains periodic inspection of production
					 listed equipment or materials or periodic evaluation of services, and whose
					 listing states that either the equipment, material, or service meets
					 appropriate designated standards or has been tested and found suitable for a
					 specified purpose.
(rr) "Manifolded
					 storage system" means storage in containers arranged in banks where each bank
					 acts as 1 large container. The banks are separated by switching valves to
					 provide sequential drawdown of the banks. The bank may consist of 1 or more
					 containers.
(ss) "Manual emergency
					 shutoff valve" means a designated valve designed to shutoff flow due to a
					 rupture in pressurized piping system.
(tt) "Maximum allowable working pressure
					 (MAWP)" means the maximum pressure to which any component or portion of the
					 pressure system can be subjected.
(uu) "Maximum operating pressure (MOP)" means
					 the steady-state gauge pressure at which a part or system normally
					 operates.
(vv) "Metal hydride
					 storage system" means a system for the storage of H2 gas
					 absorbed in solid material.
(ww)
					 "Motor fuel dispensing facility" means that portion of the property where
					 H2 is stored and dispensed from fixed equipment into the
					 fuel tanks of motor vehicles, marine craft, or into approved containers,
					 including all equipment used in connection therewith.
(xx) "NACE" means the national association of
					 corrosion engineers, international.
(yy) "Original equipment manufacturer (OEM)"
					 means an original equipment motor vehicle manufacturer that certifies that the
					 motor vehicle complies with applicable federal motor vehicle safety
					 codes.
(zz) "Partially buried
					 container" means a container that has part of, but less than 100%, of the
					 container surface covered with earth.
(aaa) "Point of transfer" means the point
					 where the transfer connection is made.
(bbb) "Portable container" means a container
					 designed to be moved readily, as distinguished from containers designed for
					 stationary installations. Portable containers, designed for transportation with
					 H2, filled to their maximum filling limit, include
					 "cylinders," "cargo tanks," and "portable tanks," all 3 of which are defined
					 separately. Containers designed to be readily moved from 1 usage location to
					 another, but substantially empty of product, are "portable storage containers"
					 and are defined separately.
(ccc)
					 "Portable storage container" means a container similar to those designed and
					 constructed for stationary installation, designed so that it can be moved
					 readily over the highways, substantially empty of H2,
					 from 1 usage location to another. Such containers either have legs or other
					 supports attached, or are mounted on running gear, such as trailer or
					 semitrailer chassis, with suitable supports that can be of the fold-down type,
					 allowing them to be placed or parked in a stable position on a reasonably firm
					 and level surface. For large-volume, limited-duration product usage, such as at
					 construction sites and normally for 6 months or less, portable storage
					 containers function in lieu of permanently installed stationary
					 containers.
(ddd) "Portable tank,
					 or skid tank" means a container of more than 1,000 lb (454 kilogram) water
					 capacity used to transport H2, handled as a package,
					 that is, filled to its maximum permitted filling limit. Such containers are
					 mounted on skids or runners and have all container appurtenances protected in
					 such a manner that they can be safely handled as a package.
(eee) "Pressure relief device (PRD)" means a
					 pressure or temperature activated device used to prevent pressure from rising
					 above a specified value and thereby prevent the rupture of a normally charged
					 pressure vessel or a cylinder due to emergency or abnormal
					 conditions.
(fff) "Pressure vessel"
					 means a container or other component designed in accordance with the ASME
					 code.
(ggg) "psi" means pounds per
					 square inch.
(hhh) "psia" means
					 pounds per square inch, absolute.
(iii) "psig" means pounds per square inch
					 gauge.
(jjj) "Rated pressure" means
					 the pressure to which a component is rated provided that the MAWP is observed
					 for temperature extremes.
(kkk)
					 "Release" means an unexpected discharge of H2.
(lll) "Remotely located manually activated
					 shutdown control" means a control system that is designed to initiate shut down
					 of the flow of gas or liquid that is manually activated from a point located
					 some distance from the delivery system.
(mmm) "Residential fueling facility" means a
					 listed vehicle fueling appliance used for the compression and delivery of
					 H2 into vehicles at a residence which includes its
					 associated equipment and piping.
(nnn) "Service pressure" means the nominal
					 gas pressure at a uniform gas temperature of 70 degrees Fahrenheit (21 degrees
					 Celsius) when the equipment is properly and completely charged with gas; the
					 nominal design pressure for which the equipment has been constructed.
(ooo) "Set pressure" means the
					 start-to-discharge pressure for which a relief valve is set and
					 marked.
(ppp) "Standard cubic foot
					 per minute (scfm)" means the amount of gas flow in standard cubic feet per
					 minute compensated for pressure and temperature.
(qqq) "Substantially empty" means a gas
					 container of H2 when the residual gas pressure is less
					 than 10% of the maximum allowable working pressure of the vessel.
(rrr) "Vehicle-fueling appliance" means a
					 self-contained listed assembly used for the compression and delivery of
					 H2 gas into vehicles including associated equipment and
					 piping of the appliance.1-5.1 NFPA official definitions. Combustible Liquid. A
					 liquid having a closed-cup flash point at or above 100Chr(176) F
					 (37.8Chr(176)C) and are subdivided as follows:
(a) Class II liquids include those having a
					 flash point at or above 100Chr(176)F (37.8Chr(176)C) and below 140Chr(176)F
					 (60Chr(176)C).
(b) Class IIIA
					 liquids include those having a flash point at or above 140Chr(176)F
					 (60Chr(176)C) and below 200Chr(176)F (93.4Chr(176)C).
(c) Class IIIB liquids include those having a
					 flash point at or above 200Chr(176)F (93.4Chr(176)C).Flammable Liquid (Class
					 I). Any liquid having a closed-cup flash point below 100Chr(176)F
					 (37.8Chr(176)C) and having a vapor pressure not exceeding 40 psia (276 kPa) at
					 100Chr(176)F (37.8Chr(176)C).Gallon. A standard U.S. gallon.
					 Limited-Combustible Material. A material, as defined in NFPA 220, Standard on
					 Types of Building Construction, not complying with the definition of
					 noncombustible material that, in the form in which it is used, has a potential
					 heat value not exceeding 3500 Btu/lb (8141 kJ/kg) and complies with one of the
					 following paragraphs (a) or (b). Materials subject to an increase in
					 combustibility or flame spread rating, beyond the limits herein established,
					 through the effects of age, moisture, or other atmospheric condition are
					 considered combustible.
(a)
					 Materials having a structural base of noncombustible material, with a surfacing
					 not exceeding a thickness of 1/8 in. (3.2 mm) that has a flame spread rating
					 not greater than 50.
(b)
					 Materials, in the form and thickness used, other than as described in (a),
					 having neither a flame spread rating greater than 25 nor evidence of continued
					 progressive combustion and of such composition that surfaces that would be
					 exposed by cutting through the material on any plane would have neither a flame
					 spread rating greater than 25 nor evidence of continued progressive combustion.
					 Noncombustible Material. A material, as defined in NFPA 220, Standard on Types
					 of Building Construction, that, in the form in which it is used and under the
					 conditions anticipated, will not ignite, burn, support combustion, or release
					 flammable vapors when subjected to fire or heat. Materials reported as
					 noncombustible, when tested in accordance with ASTM E 136, Standard Method of
					 Test for Behavior of Materials in a Vertical Tube Furnace at 750Chr(176)C, are
					 considered noncombustible materials. Outdoors. Location outside of any building
					 or structure or locations under a roof, weather shelter, or canopy provided
					 this area is not enclosed on more than two sides.
Separate Building. A detached, noncommunicating building
						used exclusively to house a hydrogen system. Shall. Indicates a mandatory
						requirement. Special Room. A separate enclosed area that is part of or attached
						to another building and is used exclusively for an H2
						system. Standard. A document, the main text of which contains only mandatory
						provisions using the word "shall" to indicate requirements and which is in a
						form generally suitable for mandatory reference by another standard or code or
						for adoption into law. Nonmandatory provisions shall be located in an appendix,
						footnote, or fine-print note and are not to be considered a part of the
						requirements of a standard. Standard Cubic Foot (scf). One cubic foot of gas at
						70Chr(176)F (21Chr(176)C) and 14.7 psia (an absolute pressure of 101
						kPa).