Oklahoma Administrative Code
Title 35 - Oklahoma Department of Agriculture, Food, and Forestry
Chapter 30 - Consumer Protection
Subchapter 29 - Fertilizer
Part 3 - LIQUID, DRY, AND ANHYDROUS AMMONIA
Section 35:30-29-38 - Anhydrous ammonia requirements
Universal Citation: OK Admin Code 35:30-29-38
Current through Vol. 42, No. 1, September 16, 2024
(a) General safety requirements.
(1)
Each tank used with a system shall be constructed and tested in accordance with
parts UG-1 through UG-36, inclusive, entitled "General Requirements for All
Methods of Construction and All materials" and parts UF-1 through UF-136
entitled "Requirements for Pressure Vessels Fabricated by Forging" as published
in Section VIII, Division I of the ASME Boiler and Pressure Vessel Code, July
1, 1983 edition amendments, supplements, or successors.
(2) No person shall fill a storage or nurse
tank with anhydrous ammonia unless the tank bears a manufacturer's nameplate
showing that it is a code container.
(3) The copy of the report form from each
inspection and re-qualification, together with tank repair and mill test
reports, if any, shall be maintained for the entire service life of the tank.
The reports shall be forwarded with the tank when relocated.
(4) For protection to the public and safety
for individuals, the storage of nurse tanks shall conform to the same
subsection as permanent storage installations in order to prevent tampering by
individuals, which may cause injury to human health.
(5) Anhydrous ammonia tanks of three thousand
(3,000) gallon water capacity or less shall not be used for any other commodity
except anhydrous ammonia.
(6) Tank
trucks, semi-trailers, nurse tanks, and trailers transporting anhydrous ammonia
shall not be left unattended on public thoroughfares or in densely populated
areas.
(7) If the ammonia hose is
marked with:
(A) the year of manufacture and
made from the following materials, it shall be replaced per the indicated
service life with not more than one (1) year shelf life added:
(i) Rayon - 2 years
(ii) Nylon - 4 years
(iii) Stainless Steel - 6 years
(B) a manufacturer's removal date,
it shall be replaced prior to that date (i.e., the manufacturer removal date is
2020, the hose shall be removed prior to January 1, 2020).
(8) All anhydrous ammonia high pressure
transfer hoses shall be clearly marked at least once every five (5) feet with
the manufacturer's name or trademark, the words Anhydrous Ammonia, the maximum
working pressure in PSIG, and the year of manufacture or manufacture removal
date. Bulk hoses shall not be used. All hose ends shall be connected by the
manufacturer.
(9) Any accident or
release, involving anhydrous ammonia, shall be reported (telephone or fax) to
the Oklahoma Department of Agriculture as soon as possible, no later than
twenty-four (24) hours following the incident, so that an investigation may be
made before the area is disturbed.
(A) An
accident includes nurse tanks that have been in a wreck, overturned tanks,
vandalism (without a release), storage tank being damaged, or "ANY" personal
injuries.
(B) A release includes
valve malfunctions, ruptured hoses, or any time anhydrous ammonia is released
into the air with the exception of safety relief (pop off and hydrostatic)
valves.
(10) Converted
railroad tank cars shall not be used for the storage of anhydrous ammonia
unless they have been retested and meet the requirements of this
subsection.
(11) All storage
installations shall have on hand, as a minimum, the following equipment in a
readily accessible location for emergency and rescue purposes:
(A) One full face gas mask with one
industrial size ammonia canister with current date and at least one spare
ammonia canister in a readily accessible location. A positive pressure
self-contained breathing apparatus shall be used in ammonia contaminated
atmospheres that are immediately dangerous to life or health. Gas masks and
self-contained breathing apparatus shall be approved by NIOSH/MSHA under
provisions of 30 CFR Part II. Procedures and training shall be in accordance
with 29 CFT Part 1910 and documented.
(B) One pair of approved protective gloves
made of material impervious to anhydrous ammonia.
(C) One pair of protective boots made of
material impervious to anhydrous ammonia.
(D) One protective slicker and/or protective
pants and jacket made of material impervious to anhydrous ammonia.
(E) Approved flexible fitting, hooded
ventilation goggles and one full face shield.
(12) Each employee shall be provided with a
pair of approved gloves and a pair of approved flexible fitting, hooded
ventilation goggles and, as an option, a full face shield worn over the
goggles, which shall be worn when making, breaking, or testing, any ammonia
connection, transferring ammonia, or performing maintenance on an ammonia
system under pressure.
(13) Each
vehicle transporting anhydrous ammonia shall carry a container of at least five
gallons of water and shall be equipped with one pair approved protective
gloves; a full face gas mask; a pair of approved flexible fitting hooded
ventilation goggles, and as an option, one full face shield to be worn over the
goggles. The driver shall be instructed in their use and the proper action to
take to provide for their safety.
(14) If a leak occurs in transportation
equipment and it is not practical to stop the leak, the driver should move the
vehicle to an isolated location downwind from populated communities or heavily
traveled highways.
(15) Wheel
chocks for nurse tanks and railcars shall be available and shall be used when
loading or unloading.
(16) It is a
violation for any person to transfer or deliver any anhydrous ammonia into a
storage or nurse tank having defects which are plainly apparent.
(17) No container pressure relief device
shall be used after the replacement date as specified by the
manufacturer.
(18) An attendant is
required to transfer anhydrous ammonia and shall be trained in safe operating
practices, use of equipment, safety devices, and the proper action to take in
the event of emergencies.
(19)
Additional safety guidelines found in the American National Standards
Institute, Inc., Safety Requirements for Storage and Handling of Anhydrous
Ammonia may be applied at the Board's discretion.
(b) Minimum safety requirements for anhydrous ammonia storage tanks. Minimum safety requirements for storage tank facility operations are as follows:
(1)
A sign shall be on display at each location in a conspicuous place stating the
name, address, and phone number of the nearest representative, agent, or owner
of the storage system in letters not less than one inch high.
(2) An easily accessible shower and/or a
minimum of one hundred (100) gallons of clean water in an open top container
shall be available at every anhydrous ammonia storage location.
(3) Storage tanks shall be free of
leaks
(4) Tank supports shall be in
good condition.
(5) Storage tanks
shall have a reflective surface maintained in good condition. White is
recommended for painted surfaces, but other light reflective colors are
acceptable.
(6) All hoses shall be
maintained, approved for anhydrous ammonia and meet current data
specifications.
(7) Hose hang-up
racks shall be provided and operational.
(8) All gauges shall be operative with
markings clearly visible.
(9) Vapor
valves shall be color coded safety yellow and labeled.
(10) Liquid valves shall be color coded
safety orange and labeled.
(11) All
pressure relief valves shall be capped.
(12) All piping shall be well supported and
provision made for expansion and contraction.
(13) All piping shall be done with Schedule
40 black pipe when joints are welded or Schedule 80 black pipe when joints are
threaded. An unpainted stainless steel braided flex hose, with Schedule 80
welded fittings, no longer than thirty (30) inches, may be used to provide
expansion, contraction, jarring, vibrating, and for settling. In no case shall
the angle of the connection exceed ten (10) degrees.
(14) Brass, copper, or galvanized steel pipe
or tubing shall not be used.
(15)
Provisions shall be made to protect all exposed piping by use of guardrails or
other types of protective barriers.
(16) In addition, to the excess flow valves
in the liquid and vapor connections of the storage tank and the tank car or
truck, an excess flow valve or backflow check valve shall be installed in the
piping connecting the storage tank with the tank car or truck, close to the
point where the piping and hose are joined.
(17) "STOP-TANK CAR CONNECTED" signs shall be
available and in use when railcars are being unloaded. A sign shall be used at
each end of the railcar when the railroad siding opens onto the main line from
both directions.
(18) The area
around permanent storage tanks shall be kept free of trash, debris, and
vegetation which could be a fire or safety hazard.
(19) Storage tanks and appurtenances shall be
secured to provide reasonable protection against vandalism or unauthorized
access which may result in a discharge. Discharge valves on storage tanks shall
be locked except when persons responsible for facility security or transfer
operations are present. A trained attendant shall make all connections,
disconnections, and supervise the transfer of liquids from the time the
connections are made until they are disconnected.
(20) Each storage tank shall be marked on at
least two sides with the words "ANHYDROUS AMMONIA" OR "CAUTION-AMMONIA" in
sharply contrasting colors with letters not less than four (4) inches high. The
inhalation hazard decals on a background of sharply contrasting colors at least
two (2) inches high shall be on two (2) sides.
(21) Storage tanks shall be located outside
of densely populated areas.
(22)
Storage tanks shall not be located less than fifty (50) feet from any property
line upon which a building may be erected.
(23) Storage tanks shall not be located less
than six hundred (600) feet from building, structures, or areas used for
activities such as civic, political, religious, recreational, or education
purposes, or for involuntary detention of persons.
(24) Storage tanks shall not be located less
than fifteen hundred (1500) feet from hospitals, nursing homes, homes for the
aged, or public swimming facilities.
(25) Storage tanks shall not be located less
than fifty (50) feet from containers of petroleum products.
(c) Minimum safety requirements for anhydrous ammonia nurse tanks. Minimum safety requirements for nurse tanks are as follows:
(1) Nurse tanks shall be painted white or
aluminum.
(2) All nurse tanks shall
be equipped with both pressure gauge and liquid level gauge. Gauges shall be
operative at all times.
(3) All
ammonia hoses shall be in good condition, approved for anhydrous ammonia, and
meet current date specifications.
(4) It is a violation for any person to
transfer or deliver any anhydrous ammonia into a nurse tank having defects
which are plainly apparent.
(5) It
is a violation for a liquid transfer hose to be joined between a nurse tank
unit and a tool bar during transport upon a public right-of-way.
(6) Nurse tanks shall be securely attached to
the pulling vehicle and supplemented by two (2) suitably welded safety
chains.
(7) There shall appear on
each side and on each end of the nurse tank the words "ANHYDROUS AMMONIA" on a
background of sharply contrasting colors at least four (4) inches high. The
words are not required on the tank end with valves, fittings, gauges, or
appurtenances. In addition, on the rear end of the tank or trailer, there shall
be a "Slow Moving Vehicle" sign.
(8) The name of the owner, place of business,
phone number, or contact in case of an emergency shall appear on each
side.
(9) The owner's unique number
shall appear as an individual identifying figure on each nurse tank, including
single or dual nurse tank setups, in letters and numbers with at least one half
(1/2) inch in height and width.
(10) Vapor valves shall be color coded safety
yellow and labeled.
(11) Liquid
valves shall be color coded, safety orange and labeled.
(12) Vapor valves and liquid valves shall
remain closed when not in operation.
(13) All pressure relief valves shall be
capped.
(14) Decals depicting step
by step ammonia transfer instructions and/or connecting/disconnecting
instructions for quick couplers to include first aid procedures to use when
contaminated with ammonia shall be on each nurse tank.
(15) All nurse tank operators shall be
furnished with the following by the dealer:
(A) One pair of approved flexible fitting,
hooded ventilation goggles or full face shield.
(B) One pair of approved protective gloves
made of rubber or other material impervious to ammonia.
(16) A minimum five gallon container of water
shall be carried on all tanks containing anhydrous ammonia. When the
temperature is near freezing or below, five gallons of water shall be carried
in the pulling vehicle. The water container shall be filled with clean water
before the trailer leaves the storage facility.
(17) Nurse tanks shall have the 1005
nonflammable gas placard on the sides and ends. The placard is not required on
the tank end with valves, fittings, gauges, or appurtenances.
(18) The inhalation hazard decals on a
background of sharply contrasting colors at least two (2) inches high shall be
on two (2) sides of the tank.
(19)
A decal showing the maximum pulling speed of 25 M.P.H. shall be on the front of
each nurse tank as per the American National Standards Institute, Inc.
(ANSI).
(20) The provisions found
in Title
49 CFR §
173.315(m) (1) and (2)
(2010) as promulgated and amended in the Federal Register, are hereby adopted
by reference in their entirety.
Added at 17 Ok Reg 2857, eff 7-13-00; Amended at 28 Ok Reg 2194, eff 7-25-11
Disclaimer: These regulations may not be the most recent version. Oklahoma may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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