Flammable liquids are liquids, or mixtures of liquids, or liquids containing solids in solution or suspension (for example, paints, varnishes, lacquers, etc. Changes in flash points clearly indicate that the substance is adulterated. 7. Examples of nonflammable materials include helium, glass, and steel. Notmore than 60 gallons of Category 1,2, or 3 flammable liquids, nor morethan 120 gallons of Category 4 flammable liquids may be stored ina storage cabinet. Study with Quizlet and memorize flashcards containing terms like Results of Commodity Flow Surveys can be obtained from:, The primary hazard associated with most flammable liquids is:, When treating a household incident involving exposure to a poison, your most. Common examples include. Protective Equipment and Precautions for FirefightersFlammable liquids should be stored separately from other dangerous substances that may enhance the risk of fire or compromise the integrity of the storage unit; for example, energetic substances, oxidizers and corrosive materials. plastic containers, oil can, grunge bottles and tanks flammable stock pictures, royalty-free photos & images Combustibility is a measure of how easily a substance bursts into flame, through fire or combustion. Like flour, powdered sugar is a carbohydrate, and when it gets hot, the sugar molecules can ignite. Learn how to identify each type of substance with. 5 °C (141 °F), or any material in a liquid phase with a flash point at or above 37. An extinguisher with an ABC rating is suitable for use with fires involving ordinary combustibles, flammable liquids. Recently, in Cypress, Texas, a woman's body caught fire when a nearby candle ignited her nail polish remover. The standard allows for hydrocarbons, which are. Most of OSHA’s PELs for Construction are contained in 1926. And benzene catches flames easily at low temperatures (that is, it burns in the presence of any fire source). Threshold quantities (TQs) were established for these. Division 4. Liquids with lower flash points ignite easier. B. The risk management analysis will have a significant impact on the format and content of an emergency response or spill control procedure. It’s widely considered as an explosion. These are the basic differences between flammable and inflammable substances. An aerosol is any substance kept under pressure and released as a spray (think: hairspray, spray deodorant, air freshener, sunscreen and spray paint). Flammable Hazardous Substances earlier published by the WSH Council in September 2008. (of a situation) potentially violent. If a vessel, tank or piping system contained a flammable substance or residue, the atmosphere inside must not exceed 20 percent of the substance’s LEL if hot work will be performed. Oxidizing substances can be found in various industries, including chemical manufacturing, mining, and transportation. Alcohol, typically ethanol or isopropyl alcohol, is used in perfumes as a solvent. Flammable Gas; Highly Flammable Gas; Highly. 8. The. (a) verify that the oxygen content is between 19. The National Fire Protection Association (NFPA) defines a flammable liquid as a liquid with a flash point that does not exceed 100°F (38°C). Division 2. At a concentration in air lower than the LFL, gas. This page titled 1. Technically, “nonflammable”. The HCS defines hazard class as the nature of a physical or health hazard, e. Chemical Basis of Burning The. In addition, Section 2 of the Safety Data Sheet (SDS) will include the Hazard Statement of “H228 Flammable solid. Atmospheric conditions include variations above and below reference levels of 101,3 kPa (1 013 mbar) and 20 °C (293 K), provided that the variations have a negligible effect on the explosion properties of the flammable substances. Flash point ≥ 23°C and ≤ 60°C. While this varies greatly depending on the material, flammable substances usually have a flash point of below 37. A Molotov cocktail is a crude incendiary bomb, typically a bottle filled with a flammable liquid and a wick that is ignited before throwing. There is an enormous variety of flammable substances to be found in the workplace. A material that is flammable can be set on fire, while a material that is inflammable is capable of bursting into flames without an external source of ignition. Introduction. Class 4: flammable solids. 3. The other two are: HSG140 - Safe use and handling of flammable liquids; HSG176 - Storage of flammable liquids in tanks; It supplements the advice contained in Dangerous substances and explosive atmospheres. mixture with air, under atmospheric conditions, of flammable substances in the form of gas, orFlammable (Symbol: open flame) This symbol refers to any flammable chemicals or other substances that ignite on contact with air, a small ignition source, has a low flash point or can evolve highly flammable gases when in contact with water. It would be convenient if all substances could be categorized as either flammable or. 8. Flame: Flammable materials or substances liable to self ignite when exposed to water or air (pyrophoric), or which emit flammable gas. A combustible liquid is a liquid with a closed-cup flash point greater than or equal to 100°F (38°C). The vapor burns, not the liquid itself. Class 3 - Flammable liquids (and Combustible liquids [U. Flammable and Combustible Liquids Storage Requirements. g. Storage of flammable liquids in process areas, workrooms, laboratories and similar working areas. In general, the relative hazard of a flammable liquid increase as the flashpoint decreases. Workers using these systems must understand and operate them properly to remain safe while working around potentially dangerous gases. The chemical reaction creates intense heat of about 815 degrees Celsius and produces light and a thick smoke. ) in the most common sizes: AA, AAA, C, D, button cell, 9-volt, etc. Acids can also ignite when it reacts with metal or combines with other combustible substances. The recommended distance between these ignition sources and your storage area should be at least 10 feet. 3 Flammable Solids. Something that is flammable burns easily: 3. Class 1-A Flammable Liquid: Liquid substance with a flashpoint below 73 degrees F and a boiling point below 73 degrees F. Flammable – The symbol for this is a flame and it pertains to chemicals or highly flammable gases that may catch fire or ignite once exposed to air or other ignition sources or elements. , “A2L” or “B1”). Class 6 - Toxic and infectious substances. Keep away from fire symbol. Examples of fire hazards include: Flammable storage areas with insufficient fire protection; Combustibles placed together. Generally, a material can be rated as extremely flammable, flammable, and non-flammable. Examples of chemical hazards include corrosive substances, toxic chemicals, flammable materials, explosive compounds, and reactive substances that. Self reactive substances. It is also important in processes that produce combustible substances as a by-product. 5. Semua wujud bahan kimia memiliki kesempatan yang sama besar untuk dapat. flammable definition: 1. While this varies greatly depending on the material, flammable substances usually. of fumes in the air. 4. A perfume with an alcohol concentration over 85% is more likely to evaporate. Flammable liquids and gases can ignite and cause fires if they come into contact with heat, sparks, or flames. 2 FLAMMABLE GASES. It is also used to characterize the fire hazards of fuels. Drum / cylinder handling. A lot of things burn with astounding intensity, styrofoam, napalm, and marshmallows. The provisions of this Recommendation should be applied in conjunction with those of the Chemicals Convention, 1990 (hereafter referred to as "the Convention"). Make sure you’re adhering to UN regulations when storing and shipping. g. It can be explosive when mixed with a flammable chemical substance. Flammability, in the context of science, refers to the ability of a substance to catch fire and burn when exposed to an ignition source. Where the concentration of the regulated flammable substance in the mixture is one percent or more by weight of the mixture, the entire weight of the mixture must be applied toward the 10,000 pound threshold quantity for the flammable substance unless the owner or operator can demonstrate that the mixture itself does not have an. Flammable and Combustible Solids. Division 4. 5° C (141° F) Any material in a liquid phase with a flash point = 37. Combustible liquids have a flashpoint at or above 100°F. You indicate “Dry ice as refrigerant” on the documentation accompanying the container. Motor oil, on the other hand, does not ignite until well above 400 degrees F. However, the substance is highly flammable, hence must be kept out of the reach of the fire. But what if there was a material that could set sand on fire? Okay, so clearly that was a loaded question, but it was a necessary set-up. Flammable substances includes both full and empty gas cylinders. 106 (b) (1) (ii) Fabrication . Organic peroxides: These products may cause a fire or explosion if heated. Flashpoint. 1 Call 1. Its name comes from the Greek words meaning water-forming. Joints shall be riveted, welded or made tight by some. A flammable sign may be used for a flammable liquid like gasoline as well as for a flammable solid, a spontaneously combustible material, or a substance. Substances that contain certain elements, such as hydrogen or carbon, are more likely to ignite and burn. You will get to learn more on this page. " 6. July 14, 2010. flammable: [adjective] capable of being easily ignited and of burning quickly. Flammable substances can exist in a solid, liquid or gaseous state. Gases which form flammable mixtures with air ; Highly or extremely flammable liquids with flash points lower than 21 °C ; Flammable liquids with flash points lower than 55 °C . Medium: Fire could occur but is unlikely to spread rapidly due to the presence of combustible materials and heat sources. com. It is covered by Penal Code 244. The flash point of a liquid is the temperature at which it gives off sufficient vapor to form an ignitable mixture with air, near the surface of the liquid, or within a container. Flammable = able to be set on fire. A flammable substance is defined as a material that ignites more easily than other materials, making it more hazardous to health. NFPA CLASSIFICATION OF FLAMMABLE LIQUIDS S4. Hazard category means the division of criteria within each hazard class, e. But what if there was a material that could even set fire to sand? Chlorine Trifluoride, an interhalogen compound is a colorless, poisonous, corrosive and highly flammable gas that condenses into a pale-greenish. Combustible liquids have a flashpoint at or above 100°F. Any aerosol that contains ≥ 85% flammable components (by mass) with a heat of combustion ≥ 30 kJ/g, and (if applicable) an ignition distance ≥ 75 cm (for spray aerosols) or a flame height ≥ 20 cm and a flame duration ≥ 2 s; or a flame height ≥ 4 cm and a flame duration ≥ 7 s (for foam aerosols). 4. Flammable Range refers to the percentage of a flammable liquid, in its gaseous state to air to create an explosive mixture. The hazardous properties of a substance are classified to determine how the risks can be managed. 8 ºC. Incendiary ammunition is a type of ammunition that contains a chemical that, upon hitting a hard obstacle, has the characteristic of causing fire/setting flammable materials in the vicinity of the impact on fire. Class 3: Flammable Liquids. 1 Flammable gases. 2 Non-flammable, non-toxic* gases. R-22a is a hydrocarbon refrigerant blend with primary components including flammable substances such as propane and butane. Flammable Liquid Properties ›. Common flammable materials found in workplaces include liquefied petroleum gas (LPG), paints, varnishes and lacquers. This is a temporary measure, however, that should be used only as a. Danger. Definition of flammabilityflammable: [adjective] capable of being easily ignited and of burning quickly. In contact with water releases flammable gas: Substances and mixtures which in contact with water, emit flammable gases: Category 2: Div 4. These products ignite easily, so its best to keep them away. They do not catch fire easily. About dangerous substances. 5. 2. Knoxville, TN 37917. When safety cans are used, up to 25 gallons may be stored without using a flammable storage cabinet. Related to volatile flammable substances. Flammable and inflammable mean exactly the same thing: a substance burns easily or readily catches fire. The main difference lies that flammable substances catch fire easily, and inflammable substances are not as easy to ignite, i. 2 In the last paragraph, replace the words “chapter 33” with “section 33”. These could be flammable liquids, gases, aerosols, solids, dusts, substances that can develop spontaneous ignition (e. If you decide to use a chemical storage cabinet to store and segregate Class 3 Flammable Liquids from your Class 8 corrosive substances, the cabinet must comply with design specifications outlined in AS 1940:2017 - The storage and handling of flammable and combustible liquids. Generally, a material can be rated as extremely flammable, flammable, and non-flammable. Table 3 summarises the minimum separation distances of LPG vessels from flammable substance's vessels and bunds, depending on their flashpoints. Benzene has a flashpoint of about 11. The Flammable Range (also called Explosive Range) is the concentration range of a gas or vapor that will burn (or explode) if an ignition source is introduced. Hazard classifications National Fire Protection Association (NFPA) hazard classifications for flammable and combustible liquids are listed below: Hazard classification for flammable liquids Class Flash point Boiling point Examples I-A below 73°F (23°C) below 100°F (38°C) diethyl ether, pentane, ligroin, petroleum ether I-B below 73°F (23°C. Stan Sharp. Division 2. However, just like most flammable chemicals, all acids will catch fire readily when it comes in contact with an ignition source. As safety is an important factor in making laboratory. The flashpoint of a chemical is the temperature at which the vapor of the chemical is capable. Flammable substances and materials, whether flammable solids, flammable liquids or flammable gases, can burn with a flame at ambient temperatures. Yes, hand sanitizer is flammable. Libby Box, Sunshine Coast. ” Substances that ignite in air (i. 1 Liquid fuels are flammable substances. F: highly flammableFlammable Sign Meaning Flammable substances are dangerous and a threat to the environment and health. W 01 sign icon isolated on white background. Class 4 dangerous goods include flammable solids, substances liable to spontaneous combustion and substances which, in contact with water, emit flammable gases. A hot work permit identifies the trouble areas where things could go wrong. Flammable liquids are defined by the National Fire Protection Association (NFPA), as a liquid with a closed-cup flash point less than 100°F (38°C) and a combustible liquid is a liquid with a closed-cup flash point greater than or equal to 100°F (38°C). Flammable liquids cabinets do not have to be ventilated. Conduct a risk assessment before using a hazardous substance ; See all our toolbox talk topics here. Flammable and Combustible Liquids. However, the flammability of alcohol and its dangers depend on its proof and its form. Chlorine triflouride has the dubious honor of being terrifyingly. Most of the fuels are hydrocarbon products obtained from fractional distillation of crude oil. The use and storage of flammable and combustible liquids must comply with State Fire Marshal Division rules. Note that five fire classifications follow the USA standard system for classifying fires. is the proportion of vapor to air mixture that is ignitable and is expressed in terms of percentage of vapor in air by volume. • Store containers with flammable or combustible liquids in a flammable liquid storage cabinet equipped with a grounding system that is marked “Flammable – Keep Fire Away. A material is considered combustible if it has a flash point higher than 37. It is not a flammable substance for purposes of PC 244. 2: Substances liable to spontaneous combustion. use a pouring spout or funnel. Principles of flammable gas/vapour detection. Flammable liquids have a flash point of less than 100°F. It's the diatomic hydrogen gas that is extremely flammable. Many flammable and combustible liquids. 8 °C (100. Examples of fire hazards include: Compressed gas and oil safety tank with dangerous radioactive flammable substance vector illustration isolated on white background group of dirty plastic containers in front of a wall. “R-22a” has been sold under the. The truck was carrying “pesticides, paints, and flammable sand corrosives,” Healey said. It refers to the ability of the respective substance to burn or ignite, causing combustion or fire. These hazardous. Checked Bags: Yes. dust, gases or vapours that when airborne may form a potentiallyLow: Little risk of fire due to few combustible materials, absence of highly flammable substances, and minimal heat sources. 1. Commonly transported class 3. 12); 7 “Every area will have a perpetual inventory of the hazardous. The Health and Safety Executive is the principle authority on flammable substances with Fire and Local authorities taking a secondary role while nevertheless working closely together. The Manual consists of more than 5,000 pages of railway engineering reference material, the recommended practices for the industry. Deflagration Index: This is simply the rate of pressure at which a flammable substance can be allowed to escape without causing an explosion. 1°F. 1] Are flammable gases separated from oxidizing gases in. The short answer is yes, perfume can be flammable. 8. Liquids with lower flash points ignite easier. Flash point > 60°C and ≤ 93°C. Paragraph 1910. Health Hazard: A cancer-causing agent (carcinogen) or substance with respiratory, reproductive or organ toxicity that causes damage over time (a chronic, or long-term, health hazard). 18 gage sheet iron and double walled with 1-1/2 inch air space. In some cases, it may also contain small amounts of other hydrocarbons or a pine-scented odorant. 2. The five classes of fire are: Class A Fire: Ordinary Combustible. handling and storage of flammable substances; introduce procedures to prevent accidents and protect people from the hazards of flammable substances; find more detailed information when you need it. Flammable and combustible liquids exhibit multiple health hazards besides the risk of fire. Flammable materials are easily ignited, causing fires. Substances with a flash point above 100°F are considered combustible substances and take more time to ignite than flammable substances. 2. It would be convenient if all substances could be categorized as either flammable or non-flammable but, unfortunately, a significant proportion of substances fall into the category of burning under certain conditions. Flammable substances carry their own hazards but they are not as dangerous as pyrophoric ones. , pyrophoric) or upon exposure to. The lower the flashpoint, the higher the risk a liquid poses. Handling and Storing Class 3 and Class 8 Substances. Flame: Flammable materials or substances liable to self ignite when exposed to water or air (pyrophoric), or which emit flammable gas. These toxicity and flammability characters combine to form a refrigerant safety classification (e. Gasoline, turpentine, and paint thinner. 8 C)≥100 F (37. A combustible liquid is a. Question #1: Why are the definitions for combustible liquids and flammable liquids different under OSHA's construction and general industry standards? Answer #1:Dry batteries (AA, AAA, C, and D) Carry On Bags: Yes. ]) Class 4 - Flammable solids; Substances liable to spontaneous combustion; Substances which, on contact with water, emit flammable gases. Though, it should be handled carefully while using it. Alcohol is flammable. 2. An excellent option for maintaining a space that contains hazardous substances is the installation of a better ventilation system or HVAC system. It acquires a sweet, earthy scent as. Learn about the features and operation of the most. Verified by Toppr. There is an enormous variety of flammable substances to be found in the workplace. 2: Non-Flammable Gas: 2. Class 5: Oxidizing Substances. It’s highly likely that you have a bottle of this first chemical lying around somewhere in your garage. Flammable materials are the ones that are ignited or flame immediately when contacting with fire or high temperature in the air and continue to burn or slightly flame when leaving fire, such as plywood, fiberboard, wood and foil. 3 Specifications for Pipelines Conveying Non-Flammable Substances 5. A flammable symbol is used to highlight a chemical or substance that could easily catch fire if exposed to naked. 8. Flamehandling and storage of flammable substances; introduce procedures to prevent accidents and protect people from the hazards of flammable substances; find more detailed information when you need it. 1. If a combustible material is exposed to fire or heat, it is likely to ignite, burn or release flammable vapours. Flammable and inflammable are two words that cause confusion. Flammable and Combustible Liquids Storage Requirements. Corrosive to metals5. g. An arrow with a flammable substance attached to the shaft, close to the tip, was shot from a bow or short-muzzled musket. The hydrogen atom has a nucleus consisting of a proton bearing one unit of positive electrical charge; an electron, bearing one unit of negative electrical charge, is also associated with this. There is a difference between isopropyl and ethanol, with the latter being drinkable alcohol. 106 (d) (3) (ii) (a) requires " the bottom, top, door, and sides of cabinet shall be at least No. All containers holding hazardous substances must be labelled, including containers of hazardous waste. The other two are: HSG51 - Storage of flammable liquids in containers; HSG176 - Storage of flammable liquids in tanks; It supplements the advice contained in Dangerous substances and explosive atmospheres. It causes ignition when subjected to air due to having a lower flash point below 100°F. Flour. This provides guidance on offsite consequence analysis for toxic gases, toxic liquids, and flammable substances. The flash point is the lowest temperature at which a volatile substance can vaporize and form an ignitable mixture in the air. 8°C), while a substance is considered combustible if its flash point is between 100°F and 200°F (37. In use, the fuse attached to the container is lit and the weapon. Those flammable liquid classes are: Class IA. 2 Flammable and Combustible Liquids. Nonflammable began to replace that term as flammable become more prominent for the sake of clarity. flammable substance means any flammable or combustible solids or liquids or flammable gas; flammable substance means any material or substance defined as "flammable" or as a "combustible fiber," " combustible liquid ," " flammable liquid ," or "flammable solid" by the fire code adopted under section 3737. The LEL is commonly tested using a gas meter calibrated for. The other two are: HSG51 - Storage of flammable liquids in containers; HSG176 - Storage of flammable liquids in tanks; It supplements the advice contained in Dangerous substances and explosive atmospheres. 2 Non-flammable, non-toxic* gases. 4. The main example of an inflammable substance is coal which is by, and large found as sedimentary rocks and is essentially utilised in creating intensity and light. Definitions. Combustible liquids have flash points at or above 100°F (39°C). Definition of Flammability. Combustion is a chemical reaction that produces both heat and. A Free Toolbox Talk Idea Everyday! A new toolbox talk idea will be sent to you first thing in the morning, every business day. Excess flammable solvents risk a fire, a dan gerous spill and, if you are exposed to them, your health. 1/Flammable Gas: 2. A material will not be uniformly flammable, and, in fact, different compositions of the same material. Flammable materials are substances with flashpoints under 100°F, and combustible materials are substances with flashpoints over 100°F. 0 license and was authored, remixed, and/or curated by Lisa Nichols via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. The relevant Level 2 Criteria are 5. Propane is a flammable gas that’s commonly used for grilling. Photo: istockphoto. Since flammable substance and oxidisers cannot be frequently eliminated, inhibiting ignition of a potentially explosive atmosphere can eliminate danger at the source. The Flammable Liquid Standard also covers the design, construction, and capacity of flammable storage cabinets. Flammable liquids are defined by the National Fire Protection Association (NFPA), as a liquid with a closed-cup flash point less than 100°F (38°C) and a combustible liquid is a liquid with a closed-cup flash point greater than or equal to 100°F (38°C). The symbol is a large open flame. The classes range from 1-A to 1-C, with 1-A being the most dangerous. Flammable is a term that describes the ability for a material to ignite. , furnace, oven) and electrical outlets has to be considered. The term used for these chemicals by the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) is: Chemicals Which, in Contact with Water, Emit. Class B Fire: Flammable Liquids and Gases. Dangerous goods class 4 groups together flammable substances, which in turn are divided into three subclasses. The most flammable substance. These include flammable solids (Division 4. Flammable substances are defined as the substances which can easily catch fire or it can be set to fire. The potential of flammable substances to cause death and destruction was shown by the jet-fuel-fed fires that brought down both towers of the New York World Trade Center in the 9/11/01 attack. This symbol with the word 'explosive' denotes a substance which may explode under the effect of a flame or if subjected to shocks or friction. com. Powdered Sugar and Spices. W 01 sign icon isolated on white background. In general, a substance is considered flammable if its flash point is less than 100°F (37. The truck’s owner plans to bring forklifts and pallets to repack some of the load, he said. 1. Handling Precautions Avoid accumulation of vapors and to control sources of ignition including: open flames electrical equipment sources of static electricity Accounts of a few of the fires that have occurred in our laboratories may be found in Anecdotes. Nail polish remover. A flammable sign can be a placard or a label used to mark materials that can easily catch fire. A World War I era Buckingham Incendiary Bullet. The OSHA Laboratory Standard defines a flammable solid as a “solid, other than a blasting agent or explosive, that is liable to cause fire through friction, absorption of moisture, spontaneous chemical change, or retained heat from manufacturing or processing, or which can be ignited readily and when ignited. It is highly flammable and should be used with caution. 1), substances liable to spontaneous combustion (Division 4. July 14, 2010. 6. Most portable extinguishers are rated for use with more than one classification of fire. Most of the fuels are hydrocarbon products obtained from fractional distillation of crude oil. Use of Flammable Liquids 3. You need to select the most effective controls that are proportionate to the risk, and appropriate to your work situation. , Bldg. It is extremely flammable. 463. The primary focus is to safely monitor and control these substances. 10 Household Items That are Extremely Flammable. 5. Paint thinner is a highly flammable substance. A flammable liquid is a liquid which can be easily ignited in air at ambient temperatures, i. However, many of these limits are outdated. Many fires start when flammable liquids are spilt or their containers are left open, and their vapours reach an ignition source such as an open flame. Most flammable substances have a specific temperature range, known as the “flash point,” at which they can ignite. g. Ethylene Glycol. The guidance is one of three documents dealing with fire and explosion hazards associated with flammable liquids. substances or mixtures of substances classified as explosive, oxidising, extremely flammable, highly flammable, or flammable under the Classification, Labelling and Packaging of Substances and Mixtures Regulation (CLP); b. 1 Flammable gases. temporary or ephemeral. C. To. the substance, and a hazard pictogram and hazard statement consistent with its classification. Exothermic reactions generate light. These chemical classes, when exposed to oxygen, help ignite substances that wouldn't otherwise combust and/or make fires burn hotter and longer. Use of Flammable Liquids 3. Known for causing about 8,000 fires annually, gasoline is one of the most flammable substances within a residential property. Hazards associated with flammable gas are directly dependent on the probability of creating an explosive atmosphere. General Principles Hazardous Area Classification for Flammable Gases and Vapours. 8°C and 93. Flash point < 23°C and initial boiling point >35°C. These fire and flammability standards are instrumental in the establishment of building codes, insurance requirements, and other fire regulations that govern the use of building materials, as well as in defining the appropriate criteria for the storage, handling, and transport of highly flammable substances. Class 2: flammable gases. An acceptable level might be determined by selecting protective measures and installing means to ensure the likelihood for explosion is not increased by the presence of electrical. Learn more. It has also to be. Colors with an alcohol base: Alcohol is a flammable substance that rapidly catches fire. dangerous substances; these include: a. Flame handling and storage of flammable substances; introduce procedures to prevent accidents and protect people from the hazards of flammable substances; find more detailed information when you need it. NFPA has six classes of flammable liquids. Carbon is found in almost every flammable substance. Flammable liquids are defined by the Occupational Safety and Health Administration (OSHA) as any liquid having a closed-cup flash point at or below 200°F (93°C). 106 (d) (3) (ii) (a) requires " the bottom, top, door, and sides of cabinet shall be at least No. These symbols cannot be readily interpreted without the aid of a table to translate the numerical codes. A material’s ability to ignite is dictated by the strength of bonds between molecules within the substance and the ease of oxidation. Gasoline, Diesel Fuel, and Motor Oil. When flammable liquids are transferred from a container into a vehicle, follow basic health and safety precautions: decant (pour) in the open air. 4.