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PORTABLE FIRE EXTINGUISHER - ANNUAL INSPECTION / MAINTENANCE CERTIFICATION TRAINING Equipment needed: inspections tags, tamper seals, weight scale BASIS: National Fire Protection Association (NFPA) Part NFPA 10* Occupational Safety and Health Standards 29 CFR Part 1910. Subpart “L” - Fire Protection Standard 1910.157 * Note – A sample of maintenance procedures and checks from NFPA 10, that are commonly associated with rechargeable, stored-pressure dry chemical handheld portable fire extinguishers, are in a separate attachment and must be reviewed also.

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PORTABLE FIRE EXTINGUISHER -ANNUAL INSPECTION / MAINTENANCE

CERTIFICATION TRAININGEquipment needed: inspections tags, tamper seals, weight scale

BASIS:National Fire Protection Association (NFPA) Part NFPA 10*

Occupational Safety and Health Standards29 CFR Part 1910. Subpart “L” - Fire Protection Standard 1910.157* Note – A sample of maintenance procedures and checks from NFPA 10, that are commonly associated with rechargeable, stored-pressure dry chemical handheld portable fire extinguishers, are in a separate attachment and must be reviewed also.

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TRAINING OBJECTIVES:

• IDENTIFY common types of fire extinguishers, classes, ratings, and their components

• EVALUATE what type of extinguishers are needed at what locations.

• INSPECT if the extinguishers are in working condition, damaged, or otherwise need service

• APPLY inspection tags and/or annotate that the annual inspections have been performed.

After this training you should be able to:

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TRAINING COMPONENTS

• Review of NFPA 10 (included with this presentation)

• Review of this PowerPoint presentation• View video of annual maintenance

procedures linked to this presentation• Take Exam and send it to the Safety

Officer

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Portable Fire Extinguishers

• Can be carried to a fire• Weigh* from 5 to 30 pounds• Have a NFPA Class• Have a NFPA Rating

*The size of fire extinguishers is expressed in weight, more specifically in pounds (lbs.). The fire extinguisher weight indicates how much extinguishing agent it can hold, not the total weight of the extinguisher.

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Portable FireExtinguishers

LIMITED IN:• Capacity - 1.5 to 25 lbs. of

extinguishing agent

• Range - Typically 3 to 15 feet

• Duration - Discharge their contents in only 5 to 30 seconds!

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EXTINGUISHERS

1. ARE DESIGNED TO FIGHT A CERTAIN CLASS OR CLASSES OF FIRE

2. ARE RATED FOR THE SIZE FIRE THEY ARE EXPECTED TO EXTINGUISH

3. MUST BE APPROVED BY A NATIONALLY RECOGNIZED TESTING LABORATORY SUCH AS:

1. Underwriters Laboratory (UL)

2. Factory Mutual Research (FM)

3. U.S. Coast Guard (USCG) for marine applications

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FIRES ARE CLASSIFIED BY THE TYPE OF FUEL BURNING

• Class A: ORDINARY COMBUSTIBLES - Wood, Paper, Cloth, Trash, Plastics – Solids that are not metals.

• Class B: FLAMMABLE LIQUIDS AND GASES - Gasoline, Oil, Grease, Acetone, Propane.

• Class C: ELECTRICAL – Energized Electrical Equipment; as long as it is “plugged in”.

• Class D: COMBUSTIBLE METALS, such as magnesium, titanium, zirconium, sodium, lithium, and potassium.

• Class K: COOKING MEDIA - Grease, Fats and Oils.

FUEL CLASSIFICATIONS

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Fire Extinguisher Ratings

The Letters A,B,C,D,KRepresent the types of fire or class, for which the extinguisher has been approved for. Some extinguishers are classified for only one type of fire, others may be classified for multiple types of fires.

For Example the Number in Front of the AClassification Is the Rating and Indicates how much water the extinguisher is equivalent to, and represents 1.25 gallons of water for every unit of one.

So…..a 4-A rated fire extinguisher would be equal to five gallons of water (4 x 1.25 = 5)

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Fire Extinguisher Ratings Continued:

The Number in Front of the B (flammable liquid) Classification - Represents the area in ft2 of a flammable liquid one-inch deep, that a non-expert user should be able to extinguish.

Example:

For an extinguisher rated 10-BC; A non-expert user should be able to put out a flammable liquid fire that is as large as 10 ft2 (square feet).

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Fire Extinguisher Ratings Continued:

C, D and K classified extinguishers are not generally given a numerical rating.

The C classification indicates that the agents in the extinguisher are non conductive – for an electrical fire.

The D classification indicates that the agents in the extinguisher can be used for flammable metals.

The K classification indicates that the agents in the extinguisher can be used for kitchen fires involving cooking oils and deep fryers. Normally commercial use.

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Types of Fire Extinguishers

Air Pressurized Water Extinguishers(Class A Only)

Class A: Wood, Paper, Cloth, Trash, Plastics

Ordinary Combustibles

Extinguishes by cooling the surface of the fuel

Dry Chemical Extinguisher (Class ABC)

Coats Fuel with Flame Retardant

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Types of Fire Extinguishers

Class B: Gasoline, Oil, Grease, some Paints, Solvents, Propane.

FLAMMABLE LIQUIDS AND GASES

CO2 - Carbon Dioxide Extinguisher (Class BC)

OR

Dry Chemical Extinguisher (Class ABC)

Displaces Oxygen Coats Fuel with Flame Retardant

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Types of Fire Extinguishers

Class C: Energized Electrical Equipment including wiring, fuse boxes, circuit breakers, machinery and appliances

Electrical Equipment

CO2 - Carbon Dioxide Extinguisher (Class BC)

ORDry Chemical Extinguisher (Class ABC)

Displaces Oxygen Coats Fuel with Flame Retardant

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Types of Fire Extinguishers

Class D: Combustible metals, such as magnesium, titanium, zirconium, sodium, lithium, and potassium.

Combustible Metals

Sodium Chloride Based Dry Powder

(Class D Only)Heat from the fire causes it to cake and form a crust excluding air and dissipating heat from burning metal.

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Types of Fire Extinguishers

Class K: Vegetable or Animal Fats and Oils

Fires Involving Cooking Media

Extinguishes by Saponification and Cooling of Cooking Oil Fires

WET CHEMICAL - Stored Pressure Fire Extinguisher (Class K Only*) *Some newer models are also rated A

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Fire Extinguisher Weight vs Rating• The weight of the extinguisher is based on the amount of the

extinguishing agent.• Typically you will see 2.5, 5, or 10 lb. fire extinguishers in our

facilities. • This if different than it’s rating.

For Example: A typical 5 lb. dry chemical fire extinguisher is rated at 3-A:40B:C

• Meaning that it can be used for A,B, or C, classes of fires.• Meaning that it has 5 lbs. of agent in the extinguisher• 3A meaning it is equal to 3.75 gallons of water for a paper/wood fire• 40B means a non-expert user should be able to put out a flammable

liquid fire that is as large as 40 ft2.• C meaning it is non-conductive and acceptable to use for an electrical fire.

This type of extinguisher is called a Multi-Purpose ABC Dry Chemical Fire Extinguisher and is the recommended and most common type found in Service facilities.

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ABC Dry Chemical Fire Extinguisher Ratings

• Typical 2.5 lb. extinguisher is rated at 1A:10B:C• Typical 5 lb. extinguisher is rated at 3A:40B:C• Typical 10 lb. extinguisher is rated at 4A:60B:C

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NFPA Extinguisher Class and Rating Requirements by Location

• Light Ordinary Hazard Occupancy (Office)– 2A:10B:C (at 75’)

• Moderate Hazard Occupancy (Most Shops, Pole Barns)– 2A:10B:C (at 30’), 2A:20B:C (at 50’)

• High Hazard Occupancy (Vehicle Repair Bay, Welding Area, Flammable Storage)– 4A:80:B:C (at 50’), 4A:40B:C (at 30’)

NOTE: These requirements can be met by having multiple extinguishers. Example: Two 10 lb. ABC type dry chemical extinguishers 30 ft. apart = rating of 6A:80B:C. (also see next page)

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Minimum Recommended Fire Extinguisher Sizes Per Location - ABC Dry Chemical (Recommended)

• Offices – 5 lb. within 75’ from any point.• Pole Barns – 5 lb. within 50’ from any point.• Shops – 5 lb. within 50’ from any point.• Garage Bays* – 10 lb. within 50’ from any point.• Flammable Storage Areas** – 10 lb. within 30’ from any point.• Residences – (each floor must have one)

– 5 lb. in Basement and 1st floor, accessible to Kitchen/Garage– 2.5 lb. Second/third floors

*When work is conducted handling flammables, e.g. gas tank removal, have an additional fire extinguisher on hand. Requirements may also be met when fueling vehicles by adding the extinguisher rating of the unit in the vehicle to the rating of the one mounted for the fuel tank.**For flammable storage areas there are other requirements as well:

– Within 10 feet of HazMat bldg. 10 lb. or a 5 lb. with another within 30-50 feet– Between 25-75 feet from aboveground fuel dispensing tanks. 10 lb. or 5 lb. with another within 30-50 feet.– Between 10-25 feet from an indoor flammable cabinet. 10 lb. or a 5 lb. with another within 30-50 feet

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Vehicle Extinguisher Requirements 243 FW 1.12• Sedans, station wagons, light trucks, OURV’s, and medium-duty trucks less than 26,000 lbs.

GVWR used for field work or carrying passengers must be equipped with not less than a 2 ½ lb. ABC type fire extinguisher rated at 1A:10BC.

• All commercial motor vehicles must be equipped with not less than a 5 lb. ABC type fire extinguisher rated at 3A:40BC.

• All heavy duty motor equipment must be equipped with not less than a 2 ½ lb. ABC type fire extinguisher rated at 1A:10BC unless the equipment is used in a combustible environment or in a manner that may generate sparks or heat. If the equipment is operated under these conditions, it must be equipped with a fire extinguisher not less than a 10 lb. ABC type rated at 4:A:60BC.

• The operator must adequately secure each fire extinguisher within or on the vehicle by the placement of the unit or using a cage, harness, or strap that protects the extinguisher and vehicle occupants.

The fire extinguisher can not be loose to become a projectile during sudden impact or stop.

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Vehicle Extinguisher Requirements (continued)• There must be a fire extinguisher rated not less than 10B at job sites that are within 50 feet of

where more than 5 gallons of flammable or combustible liquids or 5 pounds of flammable gas are being used. This requirement does not apply to the integral fuel tank of motor vehicles.

• Operators may use combinations of smaller fire extinguishers to achieve the larger required size (e.g., two 5 lb. rated extinguishers = one 10 lb. extinguisher).

Watercraft fire Protection Equipment, 241 FW 1 • At a minimum, one 2.5 lb. USCG-approved ABC (recommended) or BC type fire extinguisher

with a 1A:10B:C, or 10B:C rating must be installed at a location that is readily accessible on all motorboats less than 26 feet in length. All motorboats from 26 feet to 40 feet in length must have two, and motorboats 40 feet to 65 feet must have three.

Does not have to be white. Some marine rated extinguishers are red.

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FIRE EXTINGUISHER INSPECTIONS

• Monthly Visual Inspection: 1910.157(e)(2) - Portable extinguishers or hose used in lieu thereof under paragraph (d)(3) of this section shall be visually inspected monthly.

– Confirm the extinguisher is visible, unobstructed, and in its designated location.– Verify the locking pin is intact and the tamper seal is unbroken. Examine the extinguisher

for obvious physical damage, corrosion, leakage, or clogged nozzle.– Confirm the pressure gauge or indicator is in the operable range or position, and lift the

extinguisher to ensure it is still full.– Make sure the operating instructions on the nameplate are legible and facing outward.

• Annual Maintenance Inspection: 1910.157(e)(3) - The employer shall assure that portable fire extinguishers are subjected to an annual maintenance check. Stored pressure extinguishers do not require an internal examination. The employer shall record the annual maintenance date and retain this record for one year after the last entry or the life of the shell, whichever is less. The record shall be available to the Assistant Secretary upon request.

– See the Following Slides for the Requirements of the Annual Maintenance Inspection.

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PORTABLE FIRE EXTINGUISHERS

NFPA 10 and General-IndustryRequirements Under OSHA – 29 CFR 1910.157

Dry Chemical

•Monthly – Inspection (visual)

•Annually - Annual Inspection/Maintenance

•Six Years - Disassemble and Recharge

•Twelve Years - Hydrostatic Test*

*It is usually less costly to purchase new ones from GSA rather than pay for hydrostatic testing, especially for smaller extinguishers.

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DISPOSABLE * Dry Chemical

• Monthly – Inspection (visual)

• Annually - Annual Inspection/Maintenance

• Twelve Years - Dispose

*Note: Disposable Dry Chemical Extinguishers DO NOT need to be recharged at 6 years. They can not be Hydrostatically tested so they are disposed of, or used for training, after 12 years.

Carbon Dioxide

• Monthly – Inspection (visual)

• Annually - Annual Inspection/Maintenance

• Five Years - Recharge and Hydrostatic Test

PORTABLE FIRE EXTINGUISHERS (cont.)

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ExtinguisherCommon features

• Locking pin with anti-tamper seal • Carrying handle / operating lever • Pressure gauge• Label :

– Type (Water, C02, Dry Chemical)– Classification (A, B, C)– NFPA capacity Rating– Instructions

• Discharge nozzle or horn

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What does annual maintenance of portable fire extinguishers involve?

•Make sure the extinguisher is the proper type for the location, in the proper place, visible, and on a hanger or secured in vehicle.

•Make sure it has not been recalled. Go to http://www.cpsc.gov/en/Recalls/ and conduct a search by brand and model number if needed.

Annual Maintenance/Inspection

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• Check the gauge to make sure it is charged and not damaged. Does the unit have the proper hanging brackets?

• Complete an external examination of the shell and components for damage, corrosion, dents, or wear.

• Examine the handle including the pin and anti-tamper seal. Remove seal.

• Remove the hose and inspect for any blockage from dirt or insects. Look inside the port to see any signs of powder are left over from a discharge.

• If there is any evidence that it has been used it must be recharged.

Annual Maintenance/Inspection (cont.)

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Review the manufacturer date or label to see if needs a recharge or hydrostatic test. If either is required send it out for service or purchase a new unit. When it is out for service you must replace it with a useable extinguisher of the proper size in the interim.

How can I tell how old my Fire Extinguisher is?• On the chrome liquid types, that date is usually found on the hanger loop. • On the regular ABC, BC, or Halon extinguishers that date is usually found on the

label, however • Some manufacturers stamp the date in the "boot" located around the

extinguisher base or right on the base itself. • On the CO2 type extinguishers this date is found stamped around the shoulder

near the top. There may be multiple date stamps, look for the most recent.

Annual Maintenance/Inspection (cont.)

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Make sure the labels are in good shape, legible, have manufacturer information, are UL, FM, or USCG listed.

This was recharged and hydrostatically tested in January of 2007.

Annual Maintenance/Inspection (cont.)

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Annual Maintenance/Inspection (cont.)

Weigh* the fire extinguisher to ensure it has not lost any of its charge. It must weigh the same as the gross weight listed on the label, not the agent weight. Example; a typical 5 lb. ABC Dry Chemical Extinguisher has 5 lbs. of extinguishing agent but weighs 9 lbs. 1 oz.

*NOTE: This is required for CO2 type extinguishers and optional for Dry Chemical.

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Annual Maintenance/Inspection (cont.)

• Remove the old anti-tamper seal.• Pull the pin out to ensure it comes out easily. • Make sure handle and lever operate freely but DO NOT discharge

the fire extinguisher. Replace pin.• Attach a new anti tamper seal. Make sure it is the proper type that

will break away easily. NO TIE WRAPS that need to be cut.

Anti-tamper seal

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If it does not pass inspection-Replace the unit or send it out for servicing if needed

Annual Maintenance/Inspection (cont.)

• Annotate on the tag the date it was manufactured and/or last hydrostatic test date. If there is no section for manufacturer date annotate that in the Hydrostatic test line with a note.

• Annotate on the tag the date of the annual inspection and by whom. If it has been recharged, transfer that information from the previous tag or label but keep that tag or label with the unit.

• If it is over 6 years old (dry chemical) it needs recharging unless it is a disposable (12 yrs.) or there is a separate tag on it indicating a recharge or hydrostatic test date.

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If you have any questions, please contact your respective Region Safety Manager.

Thank you.