IMPORTANT NEW CHANGES IN NFPA 58 2004 EDITION

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IMPORTANT NEW CHANGES IN NFPA 58 2004 EDITION

• By Sam McTier

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Important New Changes in NFPA 58 - 2004 Edition

• Chapter 1 Administration
• 1.3.2(11) Nonapplication of the Code. This new
  change points out that propane dispensers shall
  comply with NFPA 30A, Code for Motor Fuel
  Dispensing Facilities and Repair Garages when
  they are located in multiple fuel refueling
  stations.

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Administration

• The NPGA has a representative on the NFPA 30A
  Committee to provide input for the propane
  industry where propane is dispensed at these
  multiple fuel stations.

4
1.7 Enforcement

• This is new NFPA boiler-plate for enabling
  legislation to have the code administered and
  enforced by the authority having jurisdiction.
• See Annex J

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Chapter 2 Referenced Publications

• This is the new location of referenced
  publications and has been updated to the latest
  versions

6
Chapter 3 Definitions

• There are several revised definitions and a few
  new definitions. The revised definitions are more
  clear and represent a consensus of the LP-Gas
  industry. The revised and new definitions are
  listed as follows

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Definitions

• 3.3.2 Anodeless Risers
• 3.3.10 Bulk Plant
• 3.3.11 Cargo Tank
• 3.3.13 Container Appurtenances
• 3.3.19 Diameter
• 3.3.21.2 Vehicle Fuel Containers

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Definitions

• 3.3.23 Filling
• 3.3.23.1 Volumetric Method Filling
• 3.3.23.2 Weight Method Filling
• 3.3.24 Fire Protection
• 3.3.30.1 Fixed Liquid Level Gauge

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Definitions

• 3.3.40 Maximum Allowable
  
• Working Pressure
• (MAWP)
• 3.3.41 Minimum Design Metal
• Temperature (MDMT)

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Definitions

• 3.3.57 Portable Tank (or Skid Tank)
• 3.3.58 Pressure Relief Device
• 3.3.63 Refrigerated LP-Gas
• 3.3.64.11 Two Stage Regulator System
• 3.3.65 Service Head Adapter
• 3.3.72.4 Internal Valve
• 3.3.74 Vaporizing Burner
• (Self-Vaporizing Liquid Burner)

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Chapter 4 General Requirements

• 4.5.2 This revised requirement covers the testing
  for ammonia contamination before the initial fill
  of transportation or storage systems that have
  been converted from ammonia to LP-Gas service.

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General Requirements

• 4.6 Minimum Requirements.
• This new requirement allows the use of features
  or components of equipment not prohibited by the
  code for any purpose or application.
• This is further addressed in Annex A.4.6 along
  with an example.

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Chapter 5 LP-Gas Equipment and Appliances

• 5.2.1.4 This paragraph was changed to show the
  listed conditions for the removal of containers
  from service to excessive rather than serious
  denting, bulging, gouging, or corrosion of the
  containers.

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LP-Gas Equipment and Appliances

• 5.2.3 Cylinders Filled on Site.
• This new subsection covers the DOT
  requalification requirements for cylinders not
  under the jurisdiction of DOT and specifically,
  the visual inspection requirements of cylinders
  within 12 years of the date of manufacture and
  within every 5 years thereafter.

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LP-Gas Equipment and Appliances

• These visual inspection requirements are similar
  to the DOT requirements except weighing of the
  cylinders is not required and the marking of the
  cylinders after requalification utilizes the old
  method of marking that is the month and year of
  the inspection followed by the capital letter E
  (example 7- 90E) indicating July,1990.

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LP-Gas Equipment and Appliances

• 5.2.3.2 This paragraph should be under 5.2.1.2
  as subparagraph (D) because it covers aluminum
  cylinders involved in a fire and their permanent
  removal from service afterwards.
• Paragraph 5.2.1.2 covers all containers involved
  in a fire.

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LP-Gas Equipment and Appliances

• 5.2.4.4 This new paragraph covers the change
  from the design pressure to Maximum Allowable
  Working Pressure (MAWP) of ASME engine fuel and
  mobile containers and changes the pressure to
  312 psig instead of 312.5 psig.
• This is a result of the up to date use of terms
  in the code.

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LP-Gas Equipment and Appliances

• 5.2.4.5 This paragraph was transferred from
  another location in the code to cover the service
  pressure of propane cylinders at 240 psig.

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LP-Gas Equipment and Appliances

• 5.2.5.3 This paragraph covering filling into the
  vapor space of ASME containers of more than 30
  gallons through 2000 gallons water capacity was
  split and the part covering the effective date of
  this requirement (December 1, 1963) was
  transferred to the Annex.

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LP-Gas Equipment and Appliances

• 5.2.6.1 This paragraph that covers protection
  against physical damage to cylinder appurtenances
  and connections on cylinders when not in use was
  revised to clarify the intent of the requirement.

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LP-Gas Equipment and Appliances

• 5.7.1 Materials
• 5.7.1.1 This paragraph as modified is part of a
  subsection covering materials that are used and
  materials that are prohibited from use for
  container appurtenances.
• Gray cast iron is prohibited for all
  appurtenances and nonmetallic materials are
  prohibited for use as bonnets and bodies of
  valves and regulators.

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LP-Gas Equipment and Appliances

• 5.7.1.2 This paragraph covers the minimum
  melting point of 1500 F. for pressure
  containing metal parts for appurtenances. It
  also lists fusible elements and variable liquid
  level gauges for containers of 3500 gallons water
  capacity or less as exceptions to the
  requirement.

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LP-Gas and Appliances

• 5.7.2.3 This paragraph requires pressure relief
  devices or systems for nonrefillable metal
  containers that prevent propulsion of the
  container when exposed to fire.

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LP-Gas Equipment and Appliances

• 5.7.5 Pipe for Regulator Venting
• 5.7.5.1 This paragraph was relocated from the
  piping section to this regulator subsection.
• The paragraph was modified to make it accurate
  and to point out the special PVC conduit meeting
  the requirements of UL 651, Schedule 40 or 80
  Rigid PVC Conduit that is permitted to be used
  for regulator venting.

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LP-Gas Equipment and Appliances

• 5.7.5.2 This paragraph points out that other PVC
  piping, polyethylene pipe, and polyamide pipe are
  not permitted to be used to vent regulator relief
  valves.

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LP-Gas Equipment and Appliances

• 5.7.6 Overfilling Prevention Devices
• This subsection was moved from the section
  covering containers to the container appurtenance
  section.

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LP-Gas Equipment and Appliances

• Table 5.7.6.2 Recommended Dip Tube Lengths for
  Various Cylinders.
• This table was moved from Appendix F to the text
  where it is easily found. The table and notes to
  the table are a guide for marketers to install
  the right OPD valve for any 4 lb through 40 lb
  cylinder that needs to be retrofitted.

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LP-Gas Equipment and Appliances

• 5.7.7 Container Connections and Appurtenances.
  
• 5.7.7.1 This paragraph was revised to require
  containers from 2001 through 4000 gallons water
  capacity that are used as small bulk plants to
  comply with Table 5.7.7.3 and the same sized
  containers that are used for other service to
  comply with Table 5.7.7.1.
• .

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LP-Gas Equipment and Appliances

• This now eliminates the duplication of
  requirements for bulk plants and industrial
  plants in Chapter 6

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LP-Gas Equipment and Appliances

• 5.7.7.1(cont). Other than changing the title,
  Table 5.7.7.1 remains virtually the same as it
  was in the 2001 Edition of NFPA 58.
• 5.7.7.2 A few editorial revisions were made in
  several subparagraphs of this paragraph to make
  the requirements more clear.

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LP-Gas Equipment and Appliances

• 5.7.7.2(C) This subparagraph was revised to make
  it clear that existing internal valves that were
  already installed before the 2001 Edition of NFPA
  58 was published and were not already equipped
  with remote closure and automatic shutoff using
  thermal (fire) actuation were to be equipped with
  these features by July 1, 2003.

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LP-Gas Equipment and Appliances

• 5.7.7.2(I) This subparagraph was added to the
  regular text to allow the use of an API 607
  Quarter Turn Ball Valve and a separate excess
  flow valve when the liquid connections were
  larger than 3 NPT in size and no standard
  internal valve was available for these very large
  sizes.

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LP-Gas Equipment and Appliances

• 5.7.7.2(I) (cont) Also, standard flanges were
  not compatible with the new flanged internal
  valves that required larger I.D. flanged
  openings therefore, the API 607 valves with
  separate excess flow valves were permitted to be
  used in these cases.

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LP-Gas Equipment and Appliances

• Table 5.7.7.3 Connection and Appurtenance
  Requirements for New and Existing Container
  Installations in Bulk Plants and Industrial
  Plants.

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LP-Gas Equipment and Appliances

• Table 5.7.7.3 This is a new table that has the
  same information that is in the 5.7.7.2 text.
• This duplication takes care of individuals who
  prefer tables rather than text and those who like
  text rather than tables. See commentary in
  5.7.7.2(I) if Option C and Option E in the table
  notes are confusing.

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LP-Gas Equipment and Appliances

• 5.8.5 This is an example of where polyamide
  was added throughout the code wherever
  polyethylene was mentioned.
• The Committee approved this action even though
  polyamide has not been used in any extensive
  manner in the LP-Gas industry.

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LP-Gas Equipment and Appliances

• 5.10.6 This is another example of polyamide being
  added to the paragraph
• 5.19.9(C) This is a new paragraph covering the
  minimum rate of discharge of pressure relief
  valves for indirect type or direct-fired
  vaporizers.

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Chapter 6 Installation of LP-Gas Systems

• 6.1.3 Additional Features
• This subsection is a duplication of Section 4.6
  that has already been covered

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Installation of LP-Gas Systems

• 6.3.1.2 This requirement has been difficult to
  understand in the past. It covers containers of
  more than 125 gallons water capacity installed
  at buildings where there is an overhang that
  extends out further than five feet from the
  building and is less than 50 feet above the
  relief valve discharge outlet. It has now been
  completely revised.

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Installation of LP-Gas Systems

• 6.6.3.6 This paragraph has been revised to cover
  actions required where the monthly maximum depth
  of snow accumulation is more than the height of
  installed aboveground containers. A maximum stake
  height of 15 feet and prevention of movement of
  the containers due to snow accumulation are a
  part of this requirement.

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Installation of LP-Gas Systems

• 6.8.1.1(2) This listed item is a special
  requirement for polyamide piping where its
  pressure limitation is defined by its design
  pressure.
• 6.8.4 Installation of Polyamide and
  Polyethylene Pipe Tubing, and Fittings
• Polyamide has been added to polyethylene
  throughout this subsection

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Installation of LP-Gas Systems

• 6.8.5 Valves in Polyamide and Polyethylene Piping
  Systems.
• Polyamide has been added to polyethylene
  throughout this subsection
• 6.16.5 Security and Protection Against Tampering
  for Section 6.16 and Section 6.22

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Installation of LP-Gas Systems

• 6.16.5.1 This is a new paragraph that covers
  security measures to minimize entry by
  unauthorized persons. It includes security
  awareness training and limitation of unauthorized
  access to plant areas.

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Installation of LP-Gas Systems

• 6.16.5.2 (C) and (D) These two subparagraphs
  cover requirements when guard service is
  provided. It should extend to the LP-Gas
  installation and guards should be trained.

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Installation of LP-Gas Systems

• 6.17.10 Use in Building for Flame Effects Before
  a Proximate Audience
• This subsection covers requirements for flame
  effects with a proximate audience. It covers the
  20 lb propane capacity limitations on the size of
  the cylinder, the location of cylinders, and
  other safety requirements. (See Annex for
  additional information)

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Installation of LP-Gas Systems

• 6.17.11.2 This paragraph has been revised but
  still allows cylinders above 2.7 lb water
  capacity (nominal 1 lb LP-Gas capacity) to be
  located on decks or balconies of two or more
  living units above the first floor if they are
  served by exterior stairways.

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Installation of LP-Gas Systems

• 6.21.8 General Precautions
• This subsection adds the following sentence to
  the fire extinguisher requirements
• Where fire extinguishers have more than one
  letter classification, they can be considered to
  satisfy the requirements of each letter class.
• .

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Installations of LP-Gas Systems

• 6.23.3 Protection of ASME Containers
• This subsection covers a written product release
  prevention and incident preparedness review. It
  also covers what should be in the review.
• It states that where a written fire safety
  analysis exists, an incident prevention review
  shall not be required. It also covers special
  protection.

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Chapter 7 LP-Gas Liquid Transfer

• 7.2.2.11 This paragraph covers transferring
  refrigerated product into systems that are
  designed to accept refrigerated product.
• 7.2.2.12 This paragraph was transferred from
  Chapter 5 and states that containers should not
  be filled if the container assembly does not meet
  the requirements for continued service.

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LP-Gas Liquid Transfer

• 7.2.3.2(C) This subparagraph increases the
  separation distance requirement for metal
  cutting, grinding, and welding operations from 25
  feet to 35 feet to a point of transfer while
  filling operations are in progress.

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LP-Gas Liquid Transfer

• 7.2.4 Hose Inspection
• This subsection covers the new requirements for
  inspection of hoses for transfer operations.
• It requires annual inspection and requires
  immediate repair or removal of leaking or damaged
  hose.

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LP-Gas Liquid Transfer

• 7.2.4 Hose Inspection (Cont)
• It covers such things as damage to outer cover,
  kinked or flattened hose, soft spots or bulges,
  couplings that have slipped, missing parts, and
  loose bolts.

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Chapter 8 Storage of Cylinders Awaiting Use,
Resale, or Exchange

• 8.2.2.3 This paragraph covers the requirement
  to plug, cap, or seal the valve outlets on
  cylinders of less than 45 pounds propane capacity
  when not connected for use.

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Storage of Cylinders Awaiting Use, Resale, or
Exchange

• 8.3 Storage Within Buildings
• 8.3.1 This new paragraph refers to two new
  Tables 8.3.1(a) and 8.3.1(b) that cover the
  maximum allowable storage quantity of LP-Gas in
  buildings.

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Chapter 9 Vehicular Transportation of LP-Gas

• 9.3.5 This subsection covers fire extinguishers
  for trucks or trailers transporting portable
  containers.

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Vehicular Transportation of LP-Gas

• 9.3.5 (Cont) The requirements for fire
  extinguishers remain the same except the code now
  specifically addresses fire extinguishers with
  more than one letter classification and states
  that they can be considered to satisfy the
  requirements of each letter class.

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Vehicular Transportation of LP-Gas

• 9.4.2.3 This paragraph covers changing the
  internal self-closing stop valve to internal
  valve. Internal self-closing stop valve is a
  term used in DOT regulations for an internal
  valve.

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Chapter 10 Buildings or Structures Housing
LP-Gas Distribution Facilities

• There are no important changes in this chapter.

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Chapter 11 Engine Fuel Systems

• 11.3.1.6 This paragraph states that engine fuel
  containers can either be permanently installed or
  be the exchangeable type.

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Engine Fuel Systems

• 11.4.1.8 This new paragraph covers a new valve
  requirement for permanently installed engine fuel
  containers. This valve or combination of valves
  is installed in the liquid outlet connection of
  the container and provides manual shutoff, excess
  flow valve protection, and automatic closure
  features,

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Engine Fuel Systems

• 11.4.1.8 (Cont) This valve assembly automatically
  prevents the flow of fuel when the engine is not
  in the operating mode even if the ignition switch
  is in the on position.

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Engine Fuel Systems

• 11.15(3) A new sentence was added to the
  requirement for closing the shutoff valve of the
  engine fuel container when the engine fuel
  vehicle is garaged and being repaired. The new
  sentence states that the new automatic shutoff
  valve specified in 11.4.1.8 will satisfy this
  requirement.

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Chapter 12 Refrigerated Containers/ Chapter 13
Marine Shipping and Receiving

• These two chapters are not being reviewed.

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Chapter 14 Operations and Maintenance

• 14.1 Scope
• Refrigerated, marine, and pipeline LP-Gas systems
  have been added to the operations and maintenance
  scope.

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Operations and Maintenance

• 14.2 Operating Requirements
• The operating requirements section has been
  completely rewritten and references general
  operating procedures and loading/unloading
  procedures found in the code.

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Operations and Maintenance

• 14.3 Maintenance
• The maintenance section has been completely
  rewritten and covers maintenance procedures. It
  references such things as corrosion control,
  physical protection, hose, pipe, appurtenance,
  container , and cylinder maintenance requirements
  found in the code.

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Operations and Maintenance

• 14.3 Maintenance (Cont)
• It also covers maintenance manuals and
  maintenance of fire protection equipment.

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Chapter 15 Pipe and Tubing Sizing Tables

• There are no important changes in the tables
  except there is a typo in Table 15.1(d) where
  it shows Schedule 40 in the title rather than
  Schedule 80 .

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Annex A Explanatory Material

• A.3.3.24 Fire Protection
• There are three new paragraphs that cover an
  explanation of fire prevention, fire detection,
  and fire suppression.
• A.4.6 This paragraph includes an explanation of
  Section 4.6 and gives an example.

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Expanatory Material

• A.6.1.3
• This paragraph is the same as A.4.6.
• A.6.17.10(C)
• This paragraph offers considerable explanation of
  cylinder use in buildings for flame effects
  before a proximate audience and includes
  separation distances and other instructions.

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Conclusion

• This concludes a thumbnail sketch of what the
  author considers as the important changes in NFPA
  58 2004 Edition.
• This brochure is designed to lead one to the
  sections and paragraphs where the changes have
  been made in the 2004 Edition of NFPA 58 from the
  2001 Edition of NFPA 58.

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The End

• Good Luck and Thanks
• Sam McTier