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From Out of the Abyss...

This week’s article from the past is titled Incendiary Fires Can Be Spotted and was written by Benjamin Horton, CPCU, who was President of the National Adjuster Traing School in Louisville, Kentucky..  It is taken from the Decembe 1968 Vol. XVI No.5 issue.

Incendiary Fires Can Be Spotted 

In the new issue of NFPA Journal®, President Jim Shannon said the Association will focus on the leading causes of home fires, including cooking. "We also need to continue to push hard for home fire sprinklers. That's still a large priority for NFPA, and we plan to work very aggressively in 2014 on our residential sprinkler initiative," he said.

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White Paper

Study by: Albert Simeoni, Zachary C. Owens, Erik W. Christiansen, Abid KemalExponent, Inc. USAMichael Gallagher, Kenneth L. Clark, Nicholas SkowronskiNorthern Research Station, USDA Forest Service, USAEric V. Mueller, Jan C. Thomas, Simon Santamaria, Rory M. HaddenSchool of Engineering, University of Edinburgh, UK

Albert Simeoni, Zachary C. Owens, Erik W. Christiansen, Abid Kemal Exponent, Inc. USA Michael Gallagher, Kenneth L. Clark, Nicholas Skowronski Northern Research Station, USDA Forest Service, USA Eric V. Mueller, Jan C. Thomas, Simon Santamaria, Rory M. Hadden School of Engineering, University of Edinburgh, UK

ABSTRACT

Two experimental fires, with contrasting intensities, were conducted in March 2016, in the Pinelands National Reserve (PNR) of New Jersey, United States in order to provide a preliminary assessment of the reliability of the fire direction indicators used in wildland fire investigation.  The experiments were part of a larger project intended to measure firebrand production in a forested ecosystem.  As part of this project, fire behavior, as well as the environmental and fuel conditions were also measured.  Two burn parcels, covering an area of approximately 30 hectares each, were ignited from unimproved forest roads which delimited them.  The forest canopy was comprised primarily of pitch pine with intermittent oaks.  The understory contained a mixed shrub layer of huckleberry, blueberry, and scrub oaks. In order to explore a wide range of indicators, objects such as bottles, cans and small fence elements were planted in the burn area, and photographed before and after the fire.  To obtain an accurate measure of pre- and post-fire fuel properties, fuel load, fuel bulk density, and fuel moisture content were also measured. In addition, environmental data (wind velocity and direction, air temperature and humidity) were recorded.  The fire behavior can be reconstructed using measurements of fire rate of spread, fire front temperatures, fire front geometry, and heat fluxes.  Video and infrared cameras were used to document the general fire behavior in selected locations.  This paper represents the first step in the analysis of the fire indicators and focuses on the more intense of the two burns and on the appearance of the macro- and microscale fire pattern indicators.  A majority of the indicators were assessed, although the configuration of the burn parcels, the ignition technique, and precipitation immediately following the fires limited a full study.  The results show that some fire direction indicators are highly dependent on local fire conditions and fire behavior and may be in contradiction with the general spread of the fire.  Overall, this study demonstrates that fire pattern indicators are a useful tool but must be interpreted in the frame of a general analysis of the fire, combined with a good understanding of fire behavior and fire dynamics.

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NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

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Abstract Candles can enhance décor or be a source of light. However, they can also start fires. National estimates of reported fires derived from the U.S. Fire Administration’s National Fire Incident Reporting System (NFIRS) and NFPA’s annual fire department experience survey show that candles were the heat source in an estimated average of 9,300 reported home fires annually during 2009-2013. These fires caused an average of 86 civilian deaths, 827 civilian injuries and $374 million in direct property damage per year. More than one-third (36%) of home candle fires started in the bedroom. Almost three of every five (58%) fires occurred because the candle was too close to something that could burn. Candle fires are most common around the winter holidays. Candles used for light in the absence of electrical power appear to pose a particular risk of fatal fire. Home candle fires climbed through the 1990s but have fallen since the 2001 peak. ASTM F15.45 has developed a number of standards relating to candle fire safety. Despite the considerable progress made in reducing candle fires, they are still a problem. In 2009-2013, candle fires ranked second among the major causes in injuries per thousand fires and average loss per fire. Efforts to prevent these fires must continue.

Abstract

Candles can enhance décor or be a source of light.  However, they can also start fires.  National estimates of reported fires derived from the U.S. Fire Administration’s National Fire Incident Reporting System (NFIRS) and NFPA’s annual fire department experience survey show that candles were the heat source in an estimated average of 9,300 reported home fires annually during 2009-2013.  These fires caused an average of 86 civilian deaths, 827 civilian injuries and $374 million in direct property damage per year.  More than one-third (36%) of home candle fires started in the bedroom.  Almost three of every five (58%) fires occurred because the candle was too close to something that could burn.  Candle fires are most common around the winter holidays.  Candles used for light in the absence of electrical power appear to pose a particular risk of fatal fire.  Home candle fires climbed through the 1990s but have fallen since the 2001 peak.  ASTM F15.45 has developed a number of standards relating to candle fire safety.  Despite the considerable progress made in reducing candle fires, they are still a problem.  In 2009-2013, candle fires ranked second among the major causes in injuries per thousand fires and average loss per fire.  Efforts to prevent these fires must continue.

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SAN DIEGO - A Team 10 and Scripps News investigation found arson fires are not investigated properly in many American cities -- including San Diego -- due to a chaotic patchwork of reporting systems and standards.

Many deliberately set building fires are not reported to the federal government.

Nationally, just 5 percent of all residential building fires are intentionally set, according to the National Fire Incident Reporting System, which is part of the Department of Homeland Security.  Data collected by Scripps News suggests the national arson rate to be significantly higher.

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Code or standard?

What's the difference between a code and a standard?
Michael Heinsdorf, PE, LEED AP, CDT, ARCOM
07/01/2015

Almost every consulting engineer works with codes and standards on a daily basis, but do you know the difference between a code and a standard?

According to the National Institute of Standards and Technology (NIST) Circular No. A-119, Revised, a standard is "[t]he definition of terms; classification of components; delineation of procedures; specification of dimensions, materials, performance, designs, or operations; measurement of quality and quantity in describing materials, processes, products, systems, services, or practices; test methods and sampling procedures; or descriptions of fit and measurements of size or strength." In plain English, a standard consists of technical definitions, procedures, and/or guidelines that specify minimum requirements or instructions for manufacturers, installers, and users of equipment. This can be done by specifying either the methods or the results; the latter is known as "performance specifying." Most importantly, a standard provides standardization or agreement within the industry, which translates to a common reference among engineers, manufacturers, and bidders.

 

In the United States, there are several types of standards, but engineers are most familiar with "voluntary consensus standards" such as ASHRAE Standard 90.1ASTM D975IEEE SI-10NECA 1, and NFPA 70. These standards are developed in a manner that is, according to NIST A-119, "open, (considers) balance of interest, (has) due process, an appeals process, (and relies on) consensus, which is defined as general agreement, but not necessarily unanimity." There are also requirements that the standard be maintained on a consistent schedule by the organization that sponsors the standard.

A code is a standard that has been enacted into law by a local, regional, or national authority having jurisdiction so that the engineer or contractor is legally obligated to comply with the code. Noncompliance can result in being prosecuted. The code may be an industry, government, or voluntary consensus-based standard. A code can include references to standards, which means the standards are incorporated by reference and therefore are part of the code and legally enforceable.

It's important to note the difference between a code and a model code such as the International Building Code (IBC). A model code is developed by a standards organization, typically using the voluntary consensus standard process and subject matter experts. The intent of a model code is to have an industry-wide standard that can be adopted and customized by local jurisdictions, thereby saving the jurisdiction the time and expense of developing and maintaining their own code. This also allows for a certain level of standardization across jurisdictions, permitting contractors to have a understanding of the Owner's expectations and potentially lowering the cost of manufactured goods due to similar requirements across jurisdictions. A model code is not enforceable until it is adopted by a jurisdiction, and typically a jurisdiction will require significant review and some modification of the code to ensure that the code is acceptable to the jurisdiction. This is often why a jurisdiction's adopted code may be several cycles behind the latest model code.

To recap, "voluntary consensus standards" are commonly used in the United States to specify what subject matter experts consider to be the minimum requirements and instructions for manufacturers and users of equipment. Codes are standards that are adopted by jurisdictions and are legally enforceable; however, model codes are not legally enforceable.


Michael Heinsdorf, PE, LEED AP, CDT is an engineering specification writer at ARCOM MasterSpec. He has more than 10 years of experience in consulting engineering, and is the lead author of MasterSpec Electrical, Communications, and Electronic Safety and Security guide specifications. He holds a BSEE from Drexel University and is currently pursuing a master's in engineering at Drexel University.

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