First Revision No. 20-NFPA 56-2015 [ Section No. 1.1.2 ]...First Revision No. 5-NFPA 56-2015 [ Section No. 2.2 ] 2.2 NFPA Publications. National Fire Protection Association, 1 Batterymarch

First Revision No. 20-NFPA 56-2015 [ Section No. 1.1.2 ]

1.1.2 Nonapplication of Standard.

This standard shall not apply to the following items:

(1)

(2)

(3)

(4) Fuel-dispensing facilities covered by NFPA 52, Vehicular Gaseous Fuel Systems Code .

(5)

(6)

(7)

(8)

(9)

(10)

(11) Commissioning and maintenance of equipment

(12) Vent lines from pressure relief valves or devices unless such vent lines are also used for purging offlammable gas piping systems

(13)

(14)

Supplemental Information

File Name Description

56_F2016_FR-20_A.1.1.2_14_.docx

Submitter Information Verification

Submitter Full Name: Dan Gorham

Organization: [ Not Specified ]

Street Address:

City:

State:

Zip:

Submittal Date: Wed May 13 11:17:37 EDT 2015

Committee Statement

Committee Statement: Clarify that gathering lines and upstream piping are not in the scope of this document.

Response Message:

Public Input No. 12-NFPA 56-2015 [Section No. 1.1.2]

* Piping systems covered by NFPA 2, Hydrogen Technologies Code

* Piping systems covered by NFPA 51, Standard for the Design and Installation of Oxygen–FuelGas Systems for Welding, Cutting, and Allied Processes

* Piping systems covered by NFPA 51A, Standard for Acetylene Cylinder Charging Plants

* Piping systems covered by NFPA 54, National Fuel Gas Code

* Piping systems covered by NFPA 55, Compressed Gases and Cryogenic Fluids Code

* Piping systems covered by NFPA 58, Liquefied Petroleum Gas Code

* LP-Gas (including refrigerated storage) at utility gas plants (see NFPA 59, Utility LP-Gas PlantCode )

* LNG facilities covered by NFPA 59A, Standard for the Production, Storage, and Handling ofLiquefied Natural Gas (LNG)

* Vehicle fuel dispensers

* Systems regulated by U.S. Department of Transportation (DOT) 49 CFR 100–199

* Natural gas gathering lines and other upstream piping not regulated by U.S. Department ofTransportation (DOT) 49 CFR 192

National Fire Protection Association Report http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...

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Public Input No. 14-NFPA 56-2015 [New Section after A.1.1.2(6)]


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First Revision No. 5-NFPA 56-2015 [ Section No. 2.2 ]

2.2 NFPA Publications.

National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NFPA 2, Hydrogen Technologies Code, 2011 2016 edition.

NFPA 30, Flammable and Combustible Liquids Code, 2012 2015 edition.

NFPA 31, Standard for the Installation of Oil-Burning Equipment, 2011 2015 edition.

NFPA 51, Standard for the Design and Installation of Oxygen–Fuel Gas Systems for Welding, Cutting, andAllied Processes, 2013 edition.

NFPA 51A, Standard for Acetylene Cylinder Charging Plants, 2012 2017 edition.

NFPA 51B, Standard for Fire Prevention During Welding, Cutting, and Other Hot Work, 2014 edition.

NFPA 52, Vehicular Gaseous Fuel Systems Code, 2013 2016 edition.

NFPA 54, National Fuel Gas Code, 2012 2015 edition.

NFPA 55, Compressed Gases and Cryogenic Fluids Code, 2013 2016 edition.

NFPA 58, Liquefied Petroleum Gas Code, 2014 2017 edition.

NFPA 59, Utility LP-Gas Plant Code, 2012 2015 edition.

NFPA 59A, Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG),2013 2016 edition.

NFPA 69, Standard on Explosion Prevention Systems, 2008 2014 edition.

NFPA 70®, National Electrical Code®, 2014 2017 edition.

NFPA 2113, Standard on Selection, Care, Use, and Maintenance of Flame-Resistant Garments forProtection of Industrial Personnel Against Short-Duration Thermal Exposures, 2015 edition.




Street Address:

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Submittal Date: Tue May 12 15:26:01 EDT 2015

Committee Statement

Committee Statement: NFPA 2113 was added due to its inclusion in FR-4.

Response Message:

Public Input No. 17-NFPA 56-2015 [Section No. 2.2]


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2.3.1 ASME Publications.

American Society of Mechanical Engineers, Three Two Park Avenue, New York, NY 10016-5990.

ASME B31.1, Power Piping, 2010 2014 .

ASME B31.3, Process Piping,2010 2014 .

ASME B31.12, Hydrogen Piping and Pipelines,2008 2014 .




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Committee Statement

Committee Statement: Referenced current editions.

Response Message:



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First Revision No. 28-NFPA 56-2015 [ Section No. 2.4 ]

2.4 References for Extracts in Mandatory Sections.




Submitter Full Name: DANIEL GORHAM

Organization: NATIONAL FIRE PROTECTION ASSOC

Street Address:

City:

State:

Zip:

Submittal Date: Thu Jun 11 15:20:16 EDT 2015

Committee Statement

Committee Statement: Updated to most recent editions.

Response Message:


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3.3.4* Detection Equipment.

Monitoring equipment necessary for detecting and/or measuring the volume concentration of flammablegas or oxygen present in air.




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Committee Statement

Committee Statement: Determination of safety is based on the concentration of gas as opposed to volume.

Response Message:


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4.4.1*


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The written procedure for each cleaning and purging activity shall address, as a minimum, the followingitems:

(1) Scope of work and site-specific purge procedure development

(a) Cleaning and purging method

(b) Piping and instrument diagrams (PIDs)

(c) Chemical and physical properties of flammable gas, cleaning media, purge media, anddischarge gas

(d) Determination of purge end point introducing flammable gas, inert gas, or air

(e) Assessment and control of purge inlet and discharge locations

(f)

(g) Temporary piping system design

Personal protective equipment (PPE)

Training and qualifications

(h) Management review and approval

(i) Restoration of service

(j) Target design, launcher/receiver venting review for pigging operations

(k) Regulatory permits

(l) Evaluation of engineering controls to limit potential unintended ignition of gases (controlledoxidation, “flaring”) that allow gases from depressurization to be consumed in a controlledmanner instead of vented (e.g., flaring or controlled combustion in process equipment).

(m) Written stand-down instructions to stop activity in a controlled manner

(n)

(2)

(3) Communication plans

(a) Pre-job briefings

(b) Work permits

(c) Roles and responsibilities

(d)

(e) Facility alarm, alert and warning systems

(f) General facility notification prior to start of purge operations

(g) General facility notification at the conclusion of purge operations

* Mitigation or capture strategies

* Precautions for gases that have toxic, highly toxic, unstable reactive, corrosive, or otherdeleterious properties beyond flammability

* Environmental conditions and work locations

(a) Establishment and clear identification of exclusion zones where flammable gas–air mixtures arelikely to exist

(b) Limited access for personnel not directly involved with purge operations

(c) Assessment of potential for gas migration (e.g., building openings, adjacent structures)

(d) Prohibition of hot work within exclusion zones

(e) Lockout/tagout

(f) Impact of environmental conditions (e.g., wind speed and direction, temperature, barometricpressure) on purge operations

(g) Vehicular and air traffic, if applicable

(h) Topography

(i) Noise control/monitoring

* Emergency response plan


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(h) Notification of regulatory authorities as required (local emergency responders, utility operators,community officials, environmental authorities, etc.)

(4) Control of ignition sources

(a)

(b) No smoking or spark-producing work within exclusion zones

(c) Elimination of hot work within exclusion zone

(d) Static electricity ignition sources at discharge point

(e)

(5) Pre-purge piping system assessment

(a) Assessment of piping system for trapped liquids, pyrophoric solids, and other flammable orcombustible deposits within the piping system

(b) Ensuring that the piping system is properly isolated

(c) Limiting site conditions that impact the safety of the activity

(6)

(7) Protection and Rescue of Personnel

(a) Training requirements for personnel involved in the work efforts

(b) Personal protective equipment

(c) Selection of fire-resistant clothing (FRC) shall be based on a hazard analysis in accordancewith NFPA 2113

(d) Rescue equipment, including self-contained breathing apparatus and breathing air escapepacks

(e) Standby rescue personnel

(f) Primary and secondary assembly areas

(g) Assignment of personnel for alerting and accounting of personnel

Supplemental Information

File Name Description

56_F2016_FR-4_A.4.4.1_4_e_.docx New Annex section A.4.4.4.1(4)(e)

56_F2016_FR-4.docx




Street Address:

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* Bonding and grounding considerations

* Non-conductive piping, hose, or fittings in temporary piping assemblies

* Purge monitoring and instrumentation

(a) Ensuring that monitoring instruments are appropriate for gas being purged

(b) Training

(c) Calibration

(d) Monitoring frequency and reporting

(e) Appropriate selection of sample point(s)

(f) General atmosphere checks in vicinity of purge gas release


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Zip:


Committee Statement

CommitteeStatement:

Made editorial revisions for clarity.

While the current text highlights control of static electricity at the discharge point, the inclusion ofnon-conductive components within a temporary piping system used for venting and purging caninduce static charges that may not be accounted for if the focus is limited to the discharge point.Although primarily directed at non-conductive liquids, NFPA 77 provides the essential basis forcontrol of this hazard and, while it is generically referenced in the annex for Section 4.4.1(4)(a),drawing the user to the specifics of Section 10.3 in NFPA 77 will promote a proper review of thisdetail. API RP 2003 provides a full discussion of protections for static electricity and can be ofassistance in evaluating the risks from static electricity.

Reorganized and updated to raise the awareness level of users to these issues.

ResponseMessage:



Public Input No. 24-NFPA 56-2015 [New Section after A.4.4.1(4)(a)]


Public Input No. 6-NFPA 56-2014 [New Section after 4.4.1]


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First Revision No. 12-NFPA 56-2015 [ Section No. 5.1 [Excluding any Sub-Sections] ]

Persons whose duties fall within the scope of this standard shall be provided with training that is consistentwith the scope of their job activities and assigned tasks for the cleaning or purging work to be performed .Evidence of knowledge transfer shall be included as part of the training program.




Street Address:

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Committee Statement

Committee Statement: Language added to help insure knowledge transfer is effective.

Response Message:

Public Input No. 8-NFPA 56-2014 [Section No. 5.1 [Excluding any Sub-Sections]]


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5.1.3

Training records, including dates of training, name of instructor(s), content or curriculum covered, andevidence of knowledge transfer, shall be maintained for a period not less than 5 years from the date ofcompletion of the activity.




Street Address:

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Committee Statement

Committee Statement: Clarification to what records must be maintained.

Response Message:



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7.1.2*

If the electric generating plant is owned or operated by the serving natural gas supplier, natural gas pipingbetween the point of delivery or source valve and the plant shall be permitted to be purged into service inaccordance with the serving natural gas supplier’s written procedures.

7.1.2.1

The natural gas supplier’s written procedures shall include a safety validation in accordance with Section4.5.

7.1.2.2

The natural gas supplier’s written procedures and process shall be coordinated with the plant operationalpersonnel.




Street Address:

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Committee Statement

Committee Statement: Clarify that this is applicable explicitly to electrical generating plant.

Response Message:



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8.2.1*

If the electric generating plant is owned or operated by the serving natural gas supplier, natural gas pipingbetween the point of delivery or source valve and the plant shall be permitted to be purged out of servicein accordance with the serving natural gas supplier’s written procedures.

8.2.1.1

The natural gas supplier’s written procedures shall include a safety validation in accordance with Section4.5.

8.2.1.2

The natural gas supplier’s written procedures and process shall be coordinated with the plant operationalpersonnel.




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Committee Statement

Committee Statement: Clarify this is explicitly applicable to electric generating plants.

Response Message:



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First Revision No. 27-NFPA 56-2015 [ Section No. A.1.1.2(8) ]

A.1.1.2(8)

The scope of NFPA 59, Utility LP-Gas Plant Code , is included here for the convenience of the user:

1.1 Scope. [59:1.1]

1.1.1 This code shall apply to the design, construction, location, installation, operation, and maintenanceof refrigerated and nonrefrigerated utility gas plants including LP-gas containers, piping, ans associatedprocess equipment, and controls and fire protection . Coverage of liquefied petroleum gas systems atutility gas plants shall extend to the point where LP-Gas or a mixture of LP-Gas and air is introduced intothe utility distribution system. [ 59: 1.1.1] Converage begins at:

(1) The point of transfer when delivery is by cargo tank vehicle or railcar

(2) The liquid inlet isolation valve located downstream of hazardous liquid pipeline under the jurisdictionof 49 CFR Part 195

(3) Coverage shall extend to the point where LP-Gas vapor or mixture of LP-Gas vapor and air isintroduced into the utility distribution system under the jurisdiction of 49 CFR Part 192.

[ 59: 1.1.1]

1.1.2When operations that involve the liquid transfer of LP-Gas from the utility gas plant storage intocylinders or portable tanks (as defined by NFPA 58 , Liquefied Petroleum Gas Code ) are carried out inthe utility gas plant, these operations shall conform to NFPA 58 , Liquefied Petroleum Gas

Code Installations that have an aggregate water capacity of 4000 gal (15.14 m 3 ) or less shall conform toNFPA 58 . [59:1.1.2]

1.1.3Installations that have an aggregate water capacity of 4000 gal (15.14 m 3 ) or less shall conform toNFPA 58 , Liquefied Petroleum Gas Code . [ 59: 1.1.3] See Figure A.1.1.2(8) for a graphicalrepresentation of the scope of coverage of NFPA 59 . [ 59: A.1.1.31]

Figure A.1.1.2(8) Typical Installation of an LP-Gas or an LP-Gas Air Facility. [59:Figure A.1.1.1]




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Submittal Date: Fri May 29 09:55:17 EDT 2015

Committee Statement

Committee Statement: Updated to 2015 edition text.


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Response Message:


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First Revision No. 11-NFPA 56-2015 [ Section No. A.3.3.8 ]

A.3.3.8 Inert Gas.

Inert gases do not react readily with other materials under normal temperatures and pressures. Forexample, nitrogen combines with some of the more active metals such as lithium and magnesium to formnitrides, and at high temperatures it will also combine with hydrogen, oxygen, and other elements. Thegases neon, krypton, and xenon are considered rare due to their scarcity. Although these gases arecommonly referred to as inert gases, the formation of compounds is possible. For example, xenoncombines with fluorine to form various fluorides and with oxygen to form oxides; the compounds formedare crystalline solids. Radon is inert under the definition provided, but because it is radioactive, it is notconsidered inert for the purposes of NFPA 55 . [55, , 2013 2016 ]




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Committee Statement

CommitteeStatement:

Updated the reference to most current edition. This included language that radon is an inertbut should not be use.

ResponseMessage:

Public Input No. 1-NFPA 56-2014 [Global Input]


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First Revision No. 16-NFPA 56-2015 [ Section No. D.1.1 ]

D.1.1 NFPA Publications.

National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NFPA 1, Fire Code, 2012 2015 edition.


NFPA 30, Flammable and Combustible Liquids Code, 2012 2015 edition.

NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages, 2012 2015 edition.

NFPA 37, Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines,2010 2015 edition.

NFPA 45, Standard on Fire Protection for Laboratories Using Chemicals, 2011 2015 edition.



NFPA 52, Vehicular Gaseous Fuel Systems Code, 2013 2016 edition.








NFPA 70®, National Electrical Code®, 2014 2017 edition.

NFPA 77, Recommended Practice on Static Electricity, 2014 edition.

NFPA 85, Boiler and Combustion Systems Hazards Code, 2011 2015 edition.

NFPA 86, Standard for Ovens and Furnaces, 2011 2015 edition.

NFPA 87, Recommended Practice for Fluid Heaters, 2011 2015 edition.

NFPA 99, Health Care Facilities Code, 2012 2015 edition.

NFPA 400, Hazardous Materials Code, 2013 2016 edition.

NFPA 801, Standard for Fire Protection for Facilities Handling Radioactive Materials, 2014 edition.




Street Address:

City:

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Zip:



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Committee Statement

Committee Statement: Update to current editions.

Response Message:


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First Revision No. 17-NFPA 56-2015 [ Section No. D.1.2.1 ]

D.1.2.1 AGA Publications.

American Gas Association, 400 N. Capitol Street, N W, Washington, DC 20001.

AGA XK0101, Purging Principles and Practices, 2001 2015 .




Street Address:

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Committee Statement

Committee Statement: Update to new edition of AGA document which is currently being revised.

See Committee Input to revise Annex B based on new edition of AGA document.

Response Message:

Public Input No. 5-NFPA 56-2014 [Chapter D]


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D.1.2.2 AIChE Publications.

American Institute of Chemical Engineers, Center for Chemical Process Safety, Three Park Avenue, NewYork, NY 10016-5991.

Crowl, D. A., Understanding Explosions, 2003.

Guidelines for Hazard Evaluation Procedures, 2nd 3rd edition, 1992 2008 .




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Committee Statement

Committee Statement: Update to current edition of AIChE document.

Response Message:


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D.1.2.4 ASME Publications.

American Society of Mechanical Engineers, Three Two Park Avenue, New York, NY 10016-5990.

ASME B31.1, Power Piping, 2010 2014 .

ASME B31.3, Process Piping, 2010 2014 .




Street Address:

City:

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Committee Statement

Committee Statement: Updated references to current editions.

Response Message:


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D.1.2.5 ASTM Publications.

ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.

ASTM E2079, Standard Test Method for Limiting Oxygen (Oxidant) Concentration for Gases and Vapors,2007 2013 .




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Committee Statement

Committee Statement: Updated to most current edition of ASTM document.

Response Message:


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First Revision No. 6-NFPA 56-2015 [ Section No. D.3 ]

D.3 References for Extracts in Informational Sections.










NFPA 77 , Recommended Practice on Static Electricity , 2014 edition.




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Committee Statement

Committee Statement: Added NFPA 77.

Response Message:


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Documents

First Revision No. 20-NFPA 56-2015 [ Section No. 1.1.2 ]...First Revision No. 5-NFPA 56-2015 [ Section No. 2.2 ] 2.2 NFPA Publications. National Fire Protection Association, 1 Batterymarch