FR Information

Hazard Risk Category Levels 
NFPA® has identified various FR hazardous risk category levels, which are numbered by severity from 1 to 4. Hazard Risk Category is the level of arc flash protection clothing you must wear to protect against a minimum level of incident energy measured in calories per centimeter squared. Meaning, electrical equipment, depending upon the energy delivering capability, under fault conditions can cause an explosion, or arc fault of a certain level, again measured in calories per centimeter squared. That explosion can deliver a certain amount of heat to a certain distance. Each level, 0-4, is rated at a certain amount of flame resistance, again measured in cal/cm2.

The chart, based on specific job tasks, ranges from HRC 1 (which is low risk and allows for 100% treated cotton), up to HRC 4 (which is high risk and requires FR clothing with a minimum arc rating of 40). The HRC is used to determine the necessary arc rating of a garment worn during a given job task.

 
Hazard Risk Category
 
Clothing Description
(Typical number of clothing layers is given in parentheses)
 
Required Minimum Arc Rating of PPE Cal/cm2
FR shirt and FR pants or FR coveralls (1 layer)
4
Cotton underwear plus FR shirt and FR pants (1 or 2 layers)
8
Cotton underwear plus FR shirt and FR pants plus FR coveralls, or Cotton underwear plus two FR coveralls (2 or 3 layers)
25
Cotton underwear plus FR shirt and FR pants plus multilayer flash suit (3 or more layers)
40


ARC Rating Explained

A value of the energy necessary to pass through any given fabric to cause with 50% probability a second or third degree burn. This value is measured in calories/cm². The necessary Arc Rating for an article of clothing is determined by a Hazard/Risk Assessment and the resulting HRC. Usually measured in terms of ATPV or EBT. Simple put the ARC rating determines the protective characteristics of the fabric. The higher the ARC rating value the greater the protection. When the product is sold to protect workers from arcing faults, clothing manufacturer are required in indicate the ARC rating. For more info visit www.nfpa.org.

Arc Flash

An explosive release of energy caused by an electrical arc. An arc flash results from either a phase to ground or a phase to phase fault caused by such occurrences as accidental contact with electrical systems, build up of conductive dust, corrosion, dropped tools, and improper work procedures. During an arc flash, the temperature can reach 35,000° Fahrenheit, and exposure to an arc flash can result in serious burn injury and death. Every year, more than 2,000 people are admitted to burn centers with severe arc-flash burns. For more info visit www.nfpa.org.

NFPA®

National Fire Protection Association, known as NFPA®, was established in 1896, it's mission is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education. NFPA® is the world's leading advocate of fire prevention and an authoritative source on public safety, NFPA® develops, publishes, and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks. For more info visit www.nfpa.org.

NFPA® 2112 Explained

NFPA® 2112 provides minimum performance criteria and sets clear guidelines for minimum design, performance, certification requirements and test methods for Flame Resistant garments for use in areas at risk from flash fires, such as those where flammable gases or vapors, or combustible dusts might be present. The standard calls for flash fire testing to be conducted at three seconds with a pass/fail rate of 50% total body burn under ASTM F1930 (Standard Test Method for Evaluation of Flame Resistant Clothing for Protection Against Flash Fire Simulations Using an Instrumented Manikin) testing protocols. Bulwark garments have been certified by Underwriters laboratories to meet the requirements of the NFPA® 2112, Standard on Flame Resistant Garments for Protection of Industrial Personnel Against Flash Fire and Canadian General Standards Board (CGSB) Standard 155.20, Workwear for protection against Hydrocarbon Flash Fire. For more info visit www.nfpa.org.

NFPA® 2112 Compliant

Bulwark Products marked as NFPA® 2112 Compliant are Certified by Underwriters Laboratories (UL) or other independent third party laboratories to meet the requirements of NFPA® 2112 Standard on Flame Resistant Garments for Protection of Industrial Personnel Against Flash Fire, 2012 Edition.

See these pages for additional information:

NFPA, NFPA 2112, & 70E are registered trademarks of the National Fire Protection Association (NFPA).
UL and the UL logo are trademarks of UL LLC (Underwriters Laboratories).

For More Information Visit One of the Following Websites

NFPA - National Fire Protection Association
IEEE - Institute of Electrical and Electronics Engineers
EEI - Edison Electic Institute
NSC - National Safety Council
ASTM - American Society of Testing and Materials
OSHA - Occupational Safety and Health Administration
Bulwark - Priemer Flame Resistant Clothing Manufacturer
Westex Inc. - Flame Resistant Fabric Manufacturer

Fire Resistant Clothing Can Save Your Life

- Recommended and Required by OSHA, Safety Managers, and Employees worldwide.

Every day that a person goes outside there is a chance that they might not return, especially for people who work in dangerous occupational fields.  These brave men and women are constantly serving our workforce day in and day out.  They are a necessity of today’s modern world, and we can’t afford not to have them.  There are numerous jobs out there including electricians, workers in the oil and gas industry, chemical plant employees, firefighters, welders, and more that risk their lives to make ours easier and safer.

This is why OSHA and workforce Safety Managers require these professionals to dress in Flame Resistant clothing in their working environments.  These clothes keep workers safe from instantaneous fires, electrical combustions, and dust explosions from pulp and paper industries.  FR clothing is rated on 4 levels (1-4) for their risk categories.  The higher the category number is tells us that the environment has a certain energy delivery capabilities and under bad situations, explosions and fires can occur.  These occurrences can make a person receive a certain level of heat at a certain stretch of distance.  Overall when the level increases the greater protection an employee will need to have.

For More Specific Information Visit One of the Following Websites:

NFPA - National Fire Protection Association
IEEE - Institute of Electrical and Electronics Engineers
EEI - Edison Electic Institute
NSC - National Safety Council
ASTM - American Society of Testing and Materials 
OSHA - Occupational Safety and Health Administration
Bulwark - Priemer Flame Resistant Clothing Manufacturer
Westex Inc. - Flame Resistant Fabric Manufacturer

Quality Uniforms to Get the Job Done

Here at Industrial Uniform, we want to provide you with quality garments that will get the job done and stand up to protective work safety practices at your facility.  We currently offer a wide array of apparel, which includes coveralls, jackets, lab coats, pants, shirts, and many accessories.  Depending on what your work is requiring, we have it at Industrial Uniform. 

Each item will all have different levels of protection depending on what you need.  In case of an accident, these garments are crafted out of materials that won’t melt or be conductive so they do not contribute to the accident.  This apparel will be insulated to protect from the elements and will resist tearing, which would uncover the skin to vulnerabilities.  We also have items that will protect you all year round as well.  Regardless of what season it is, our products will keep you safe whether the temperature spikes or falls below freezing.

FR Layering to Stay Safe

A great way to stay compliant with the safety rating system for FR clothing is to layer.  By doing this you may change the way you suit up for your job, and it can be cost-effective and worthwhile to do so.  When you layer your FR clothing, it may even decrease the need to wear bulky items that can obstruct you from working on the job site.  Additionally, bulky apparel can affect a person’s comfort in hotter temperatures.  Layering will make it easier to suit up for tasks where you need more coverage and then you can dress down when this type of coverage isn’t necessary anymore.

For More Specific Information Visit One of the Following Websites:

Do’s and Don’ts of FR Layering
Layering FR Clothing to Meet Requirements

Choose Industrial Uniform Today

Overall, every job site and work situation is going to be different with their safety ratings for Flame Resistant clothing.  At Industrial Uniform, we are here to help your team get suited up to meet any standard.  Take a gander at our Flame Resistant clothing section today or call our customer service at 1-800-333-3666.  We want to enhance everyone’s safety by outfitting them in exactly what they need.