Actualizaciones de las Hojas de Datos de Prevención de Pérdidas de FM Global – Mayo 2025

Nombre

Cambios

DS 1-11

Fire Following Earthquake

Interim revision. Minor editorial changes were made.

DS 1-12

Ceilings and Concealed Spaces

Interim revision. Minor editorial changes were made.

DS 1-15

Roof-Mounted Solar Photovoltaic Panels

 Interim revision. Changes include the following:

– Provided guidance on rooftop photovoltaics combined with vegetative roofs and agrivoltaics.
– Provided guidance on arc and ground fault protection.
– Provided guidance on space separations for skylights and elevated modules.

DS 1-20

Protection Against Exterior Fire Exposure

 This document has been completely revised. Significant changes include the following:

– Updated for consistency with FM Data Sheet 1-42, MFL Limiting Factors, and other resources .
– Updated exposure sprinkler design criteria based on recent research.
– Updated FM exposure fire loss information.
– Removed information regarding hazards created by vehicles when buildings are constructed over highways.

DS 1-22

Maximum Foreseeable Loss

Interim revision. Minor editorial changes were made.

DS 1-28

Wind Design

 Interim revision. The following changes were made:

– Transferred guidance on determining Kzt for hills and escarpments from the obsolete FM Data Sheet 1-8, Antenna Towers and Signs. Added a flowchart for the calculation steps and an example using the flowchart.
– Transferred a reference to the wind load design for chimneys from FM Data Sheet 1-13, Chimneys.
– Modified external pressure coefficients, figures and roof zone areas for steep sloped roofs.

DS 1-34

Hail Damage

Interim revision. United States and Australia hail maps were updated using the latest hail data.

DS 1-40

Flood

Interim revision. Minor editorial changes were made.

DS 1-42

Maximum Foreseeable Loss Limiting Factors

Interim revision. Minor changes made to clarify space separation analysis guidance to be consistent with revised guidance in FM Data Sheet 1-20, Exterior Fire Exposure.

DS 1-53

Anechoic Chambers

Interim revision. Changes include the following:

– Revised the Scope, 1.0, to clarify the intent is for Radio Frequency (RF) anechoic chambers and not acoustic anechoic chambers.
– Revised Section 2.3.3, Sole Protection of Chamber, to clarify the installation of sprinklers at the ceiling if the ceiling height exceeds 25 ft (7.6 m).
– Revised Section 2.3.4, Halocarbon or Inert Gas (Clean Agents) Fire Extinguishing Systems

DS 1-57

Plastics in Construction

 Interim revision. Changes include the following:

– Provided guidance and new information relative to liners and insulated ducts for heating, ventilation and air conditioning systems.
– Provided guidance for high-pressure laminates (HPL) and high-performance building envelopes.

DS 2-0

Installation Guidelines for Automatic Sprinklers

 Interim revision. Changes include the following:

– The guidelines for when sprinkler protection is recommended within ceiling pockets has been updated.
– Editorial changes have been introduced to better clarify the recommendations offered in this data sheet.

DS 2-8

Earthquake Protection for Water-Based Fire Protection Systems

 Interim revision. Changes include the following:

– Modified four-way riser sway brace spacing guidance to align with NFPA 13 (Section 2.2.1.1.2.3).
– Modified “G” factor values for sway brace design to align with ASCE 7-2022 (Section 2.2.1.2.2).
– Made minor editorial changes.

DS 2-81

Fire Protection System Inspection, Testing and Maintenance

Interim revision. Significant changes include:

– Added recommendations regarding the use of automated pump testing in Section 2.9.
– Added Section 3.1.11.3 to provide supporting material for the automated pump testing.

DS 3-1

Tanks and Reservoirs for Interconnected Fire Service and Public Mains

Interim revision. The document was reaffirmed to be technically correct.

DS 3-7

Fire Protection Pumps

Interim revision. Minor editorial changes were made.

DS 3-10

Private Fire Service Mains and Connections (New Title)

 Full revision. The following changes were made:

– Changed the name of the data sheet to “Private Fire Service Mains and Connections”.
– Improved the definition of private fire service water mains.
– Updated installation guidance for positioning underground mains beneath railroad tracks.
– Updated thrust block guidance for fully restrained pipes.
– Added new guidance for thrust blocks used with plastic piping.

DS 3-26

Fire Protection for Nonstorage Occupancies

Interim revision. Added new Section 2.4, Ignition Source Control. (Moved from FM Data Sheet 5-21 that was made obsolete.)

DS 4-9

Halocarbon and Inert Gas (Clean Agent) Fire Extinguishing Systems

 Interim revision. The following changes were made:

– Revised Table 2.2.2.1-1 in Section 2.2.2, Minimum Design Concentrations.
– Revised Section 2.3.4, Nozzles, to update the terminology “silencers” to be FM Approved discharge nozzle for “acoustically sensitive environments” and included associated design parameters.

DS 4-12

Foam Extinguishing Systems

 Interim revision. The following changes were made:

– Reformatted Section 2.1, Introduction, to add general recommendations for the inclusion of medium and high-expansion foam systems.
– Updated Section 2.6.4.17, Alternate Test Methods, to include test liquids for Planit Safe that are allowable for SFFF and AR-SFFF.
– Updated viscosity information in Sections 2.5.4 and 3.4.5 on the compatibility of SFFF and AR-SFFF concentrates for use with variable viscosity proportioners.

DS 5-4

Transformers

 Interim revision. Changes include the following:

– Added new recommendation in Section 2.1.0 of dry-type condenser bushings for new installations.
– Added new recommendation in Section 2.1.4 for replacement strategy of critical transformers.
– Added new recommendation in Section 2.1.8 to provide spare condenser bushings as part of equipment breakdown spare for transformers rated 100 MVA and above.
– Clarified the guidance in Section 2.1.5 for on-line condition monitoring recommendations, including FM Approved monitoring systems.

DS 5-12

Electric AC Generators

 Interim revision. The following changes were made:

– Added guidance for evaluation of operators, specific to generator risk control.
– Revised guidance on high-pot electrical testing based on recent loss experience to recommend rewinding or replacement for generators with significant pre-existing conditions such as a history of vibration or issues with looseness.

DS 5-14

Telecommunications

 Interim revision. The following changes were made:

– Revised the Section 1.0, Scope, to clarify the intent for facilities with direct current (DC) power equipment that use switches and relays. Facilities that use Voice Over Internet Protocols (VOIP) electronic equipment should refer to FM Data Sheet 5-32, Data Centers and Related Facilities.
– Revised Section 2.1.4, Wind, to remove the reference to FM Data Sheet 1-8, Antenna Towers and Signs, made obsolete in April 2025.

DS 5-32

Data Centers and Related Facilities

 Interim revision. The following changes were made:

– Reference to FM Data Sheet 1-8, Antenna Towers and Signs, was removed; applicable recommendations were moved to FM Data Sheet 1-28, Wind Design.
– References to FM Data Sheet 1-45, Air Conditioning and Ventilating Systems, were removed.

DS 5-33

Lithium-Ion Battery Energy Storage Systems

Interim revision. Changes include the addition of FM Approved off-gas detection and clarification of fire protection recommendations for outdoor containerized BESS.

DS 5-48

Automatic Fire Detection

 Interim revision. Changes include the following:

– Revised Section 2.2.3, Smoke Detectors, to include additional recommendations for duct detector location and interlocking. These recommendations are based upon FM Data Sheet 1-45, Air Conditioning and Ventilating Systems, that was made obsolete.

DS 6-10

Process Furnaces

Interim revision. The document was reaffirmed to be technically correct.

DS 6-12

Low-Water Protection for Boilers

Interim revision. Minor editorial changes were made for additional clarity referencing water treatment program guidance in FM Data Sheet 6-23, Watertube Boilers.

DS 6-14

Heat Recovery Boilers

Interim revision. Minor editorial changes were made for additional clarity referencing water treatment program guidance in FM Data Sheet 6-23, Watertube Boilers.

DS 6-21

Chemical Recovery Boilers

Interim revision. Minor editorial changes were made for additional clarity referencing water treatment program guidance in FM Data Sheet 6-23, Watertube Boilers.

DS 6-22

Firetube Boilers

Interim revision. Minor editorial changes were made for additional clarity referencing water treatment program guidance in FM Data Sheet 6-23, Watertube Boilers.

DS 6-23

Watertube Boilers

Interim revision. Completely revised and improved guidance on establishing and implementing a boiler water treatment program, including guidance on boiler feedwater quality, boiler water quality and steam purity.

DS 7-2

Waste Solvent Recovery

Interim revision. The document was reaffirmed to be technically correct.

DS 7-7

Semiconductor Fabrication Facilities

 This document has been completely revised. Significant changes include the following:

– Recommendations redundant to other FM Data Sheets were removed, including fire protection inspection and testing, control room protection and electric utility system studies.
– The recommendation to retain a consulting firm specializing in seismic design for seismic zones was removed, because it is a building code requirement in those areas.
– Recommendations related to sprinkler installation around ceiling obstructions for waffle-style ceilings were revised for clarity.
– A recommendation was added to provide a hard-wired interlock that automatically switches over the backup nitrogen.

DS 7-11

Conveyers

 Interim revision. Significant changes include:

– Clarified scope in Section 1.0.
– Consolidated and revised belt width, requiring sprinklers installed beneath in Section 2.2.3.5.
– Clarified fire protection recommendations in Section 2.1.7 for conveyors entering a building or passing through a fire wall.
– Defined different conveyor types in Appendix A.

DS 7-15

Garages

Interim revision. Added recommendations on EV charging stations (Section 2.1.1) for electric vehicles (EV).

DS 7-25

Blast Furnace Ironmaking and Basic Oxygen Steelmaking

Interim revision. Minor changes were made to process safety guidance to align with FM Data Sheet 7-33, Molten Metals and Other Materials.

DS 7-26

Glass Manufacturing

 Interim revision. Significant changes include the following:

– Updated process safety guidance to align with FM Data Sheet 7-33.
– Updated guidance on molten equipment cooling system supplies to align with FM Data Sheet 7-33.
– Clarified diagrams showing example fire protection nozzle locations.

DS 7-29

Ignitable Liquid Storage in Portable Containers

Interim revision. Guidance on lecithins has been added in Section 2.1.3.10. These products can be treated as very high flash point liquids.

DS 7-33

Molten Metals and Other Materials

 Interim revision. Significant changes include the following:

– Revised radiation detection and testing.
– Clarified molten equipment cooling system guidance and aligned with other molten standards.
– Updated loss history.

DS 7-39

Material Handling Vehicles

Full revision. Removed redundant recommendations and content.

DS 7-58

Chlorine Dioxide

Interim revision. The document was reaffirmed to be technically correct.

DS 7-61

Facilities Processing Radioactive Materials

Interim revision. The document was reaffirmed to be technically correct.

DS 7-64

Aluminum Smelting

Interim revision. Minor changes were made to process safety guidance to align with FM Data Sheet 7-33, Molten Metals and Other Materials.

DS 7-85

Combustible and Reactive Metals

 Interim revision. Significant changes include the following:

– Updated process safety guidance to align with FM Data Sheet 7-33.
– Clarified molten release guidance within vacuum chambers such as VIM furnaces.
– Revised explosion mitigation and prevention guidance for molten equipment.
– Added fire protection guidance for metal powders in combustible packaging.
– Updated loss history.

DS 7-86

Cellulose Nitrate

Interim revision. The document was reaffirmed to be technically correct.

DS 7-103

Turpentine Recovery in Pulp and Paper Mills

Interim revision. This data sheet was reaffirmed to be technically correct.

DS 7-112

Lithium-Ion Battery Manufacturing and Storage

 Interim revision. Significant changes include the following:

– Added references to FM Data Sheet 6-11 in the Electrode Manufacturing section and to FM Data Sheet 3-26 in the Cell Finishing section of Table 2.1.3.
– Added FM Approved off-gas detection inside ventilated hoods or enclosures.
– Clarified the recommendation in Section 2.4.1.2.1, regarding sprinkler protection within enclosures for process equipment.

DS 8-9

Storage of Class 1, 2, 3, 4 and Plastic Commodities

Interim revision. Minor editorial changes were made.

DS 8-30

Storage of Carpets

Interim revision. The document was reaffirmed to be technically correct.

DS 8-33

Carousel Storage and Retrieval Systems

Interim revision. Minor editorial changes were made.

DS 9-16

Burglary and Theft

Interim revision. The document was reaffirmed to be technically correct.

DS 10-5

Disaster Recovery Planning

This document has been reorganized to provide a consistent format. Minor editorial changes were also made.

DS 10-6

Protection Against Arson and Other Incendiary Fires

Interim revision. The document was reaffirmed to be technically correct.

DS 12-3

Continuous Digesters and Related Process Vessels

Interim revision. Minor editorial changes were made.

DS 12-6

Batch Digesters and Related Process Vessels

Interim revision. Minor editorial changes were made.

DS 13-3

Steam Turbines

 Interim revision. The following changes were made:

– Provided clarifications for steam turbine shaft-driven lube oil pumps.
– Clarified that non-return valves are not required for back pressure steam turbine exhaust lines.

DS 13-10

Land-Based Wind Turbines and Farms (New Title)

 Full revision. The following significant changes were made:

– Changed title to Land-Based Wind Turbines and Farms.
– Removed all offshore windfarm guidance and references.
– Completely restructured Section 2.
– Clarified recommendations for lightning protection and lightning detection systems.

DS 13-17

Gas Turbines

Interim revision. Minor editorial changes were made.

Data Sheet

Nombre

Obsoleta

DS 1-1

Firesafe Building Construction and Materials

Made obsolete.

DS 1-8

Antenna Towers and Signs

Made obsolete.

– Applicable content related to the topographic factor, Kzt, used in wind design was moved into FM Data Sheet 1-28, Wind Design.

DS 1-30

Repair of Wind-Damaged Single- and Multi-Ply Roof Systems

Made obsolete.

DS 1-32

Inspection and Maintenance of Roof Assemblies

Made obsolete.

DS 1-45

Air Conditioning and Ventilation Systems

Made obsolete. Information has been moved to FM Data Sheet 1-57.

DS 1-60

Asphalt-Coated Metal and Protected Metal Buildings

Made obsolete.

DS 1-61

Fire-Retardant Treated Wood

Made obsolete.

DS 3-3

Cross Connections

Made obsolete. Cross connection and backflow preventer guidance was moved to FM Data Sheet 3-10.

DS 4-3N

High Expansion Foam Systems

Made obsolete.

DS 4-4N

Standpipe and Hose Systems

Made obsolete.

DS 4-8N

Halon 1301 Extinguishing Systems

Made obsolete.

DS 5-18

Protection of Electrical Equipment Single Phasing and Related Faults

Made obsolete.

DS 5-21

Metal Halide High-Intensity Discharge (HID) Lightning

Made obsolete. Information on Ignition Source Control was moved to FM Data Sheet 3-26.

DS 7-22

Hydrazine and Its Derivatives

Made obsolete.

DS 7-23

Data on General Class of Chemicals

Made obsolete.

DS 7-23N

Hazardous Chemicals Data

Made obsolete.