Michigan Administrative Code › Department - Licensing and Regulatory Affairs › Bureau of Fire Services › Storage and Handling of Gaseous and Liquefied Hydrogen Systems › Part 3 - STORAGE AND HANDLING OF LIQUEFIED HYDROGEN NFPA 50B › Chapter 1 - General information › Section R. 29.7072 - Definitions

Current through Vol. 24-12, July 15, 2024
Rule 72. Section 1-3 of the storage and handling of
						gaseous and Liquefied H2 code is added and section 1-3.1
						is reproduced from NFPA 50B as follows: 1-3 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 shut off 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) "Cryogenic fluid" means a fluid with a
					 boiling point lower than -130 degrees Fahrenheit (-90 degrees Celsius) at an
					 absolute pressure of 101.325 kPa (14.7 psia).
(v) "Cylinder" means a container constructed
					 in accordance with the United States Department of Transportation
					 specifications, Title 49, code of federal regulations (CFR), parts
					 171-190.
(w) "Department" means the
					 department of environmental quality.
(x) "Director" means the director of the
					 department of environmental quality.
(y) "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.
(z) "Emergency shutdown device (ESD)" means a
					 device that closes all fueling operations within the fueling facility from
					 either local or remote locations.
(aa) "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.
(bb) "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.
(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 (15.6 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) "Liquefied
					 hydrogen system" means a system into which liquefied H2
					 is delivered and stored and from which it is discharged in the liquid or
					 gaseous form including the piping system. The liquid or gaseous
					 H2 system terminates at the point where the
					 H2 is dispensed.
(rr) "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.
(ss) "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.
(tt) "Manual emergency shutoff valve" means a
					 designated valve designed to shut off flow due to arupture in pressurized
					 piping system.
(uu) "Maximum
					 allowable working pressure (MAWP)" means the maximum pressure to which any
					 component or portion of the pressure system can be subjected.
(vv) "Maximum operating pressure (MOP)" means
					 the steady-state gauge pressure at which a part or system normally
					 operates.
(ww) "Metal hydride
					 storage system" means a system for the storage of H2 gas
					 absorbed in solid material.
(xx)
					 "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 or marine craft or into approved containers,
					 including all equipment used in connection therewith.
(yy) "NACE" means the national association of
					 corrosion engineers, international.
(zz) "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.
(aaa) "Partially buried
					 container" means a container that has part of, but less than 100%, of the
					 container surface covered with earth.
(bbb) "Point of transfer" means the point
					 where the transfer connection is made.
(ccc) "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.
(ddd)
					 "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 liquefied
					 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.
(eee)
					 "Portable tank, or skid tank" means a container of more than 1,000 pounds (454
					 kilograms) 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.
(fff) "Pressure relief
					 device" 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.
(ggg) "Pressure vessel"
					 means a container or other component designed in accordance with the ASME
					 code.
(hhh) "psi" means pounds per
					 square inch.
(iii) "psia" means
					 pounds per square inch, absolute.
(jjj) "psig" means pounds per square inch
					 gauge.
(kkk) "Rated pressure" means
					 the pressure to which a component is rated provided that the MAWPis observed
					 for temperature extremes.
(lll)
					 "Release" means an unexpected discharge of H2.
(mmm) "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.
(nnn) "Service pressure" means the nominal
					 gas pressure at a uniform gas temperature of 70 degrees Fahrenheit (15.6
					 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
					 (scf)" means 1 cubic foot of gas at 70 degrees Fahrenheit (21 degrees Celsius)
					 and 14.7 psia (101 kPa).
(qqq)
					 "Standard cubic foot per minute (scfm)" means the amount of gas flow in
					 standard cubic feet per minute compensated for pressure and
					 temperature.
(rrr) "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. A liquefied H2 container is substantially empty
					 when the liquid level within the container is less than 10% of its normal
					 operating volume.
(sss) "Vaporizer"
					 means a device other than a container that receives H2
					 in liquid form and adds sufficient heat to convert the liquid to a gaseous
					 state.
(ttt) "Vehicle-fueling
					 appliance" means a self-contained listed assembly used for the compression and
					 delivery of H2 into vehicles including associated
					 equipment and piping of the appliance.
1-3.1 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 a hydrogen
						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.