Industrial Catalog Page 71 Glossary of Terms

71 BIODEGRADABLE A substance that is capable of being broken down into harmless products by the action of living things. The rate at which compounds may be chemically broken down by bacteria and/or natural environmental factors. BRITTLE POINT Temperature at which a material breaks under defined conditions of deformation. CLASS I OZONE DEPLETERS Chlorinated solvents including Carbon Tetrachloride, 1, 1, 1-Trichloroethane and CFCs (Freon). Since 1993, these products have required special labeling and have been banned from manufacture by the EPA. CLASS II OZONE DEPLETERS Products that contain HCFCs like HCFC-141b and HCFC-225. The production and importation phase out date is January 1, 2003 and January 1, 2015 respectively. DIELECTRIC STRENGTH The minimum electrical gradient that a material can withstand without decomposition usually specified in volts per millimeter of thickness. Also known as the breakdown voltage. ELONGATION PERCENT Directly related to Tensile Strength. Elongation is the deformation that results from the application of a tensile force and is calculated as the change in length divided by the original length. EMULSION A mixture of water-soluble and water-insoluble groups held together by a surfactant. Emulsions are usually milky white. EXTREMELY FLAMMABLE As defined by the Consumer Products Safety Commission, a substance with a flashpoint at or below 20 F as determined by Tagliabue Open Cup Tester. Or, for an aerosol, if the flame travels back to the actuator and the flashpoint is at or below 20F. FALEX TEST A method for determining the extreme pressure (EP) or anti-wear properties of oils and greases. Vee blocks (with large "V-shaped notch) are placed on opposite sides of rotating steel shaft, and the apparatus is immersed in the test lubricant. Load is automatically increased until seizure occurs. Measurable wear scars are formed on the blocks. FERROUS Metals related to or containing iron. FLAMMABLE Capable of catching fire easily and burning rapidly. OSHA defines flammable liquids as having a flashpoint below 100F. FLASH POINT The lowest temperature of a liquid or solid at which it gives off vapors that will ignite but not continue to burn when a small flame is periodically passed over the surface. GALLING Destructive wear of a metal surface characterized by large chunks of metal being removed. KB VALUE The Kauri Butanol (KB) value is a measure of the solvent power of a hydrocarbon liquid. Kauri gum is readily soluble in butanol but insoluble in hydrocarbons. The KB value is the measure of the volume of solvent required to produce turbidity in a standard solution containing kauri gum dissolved in butanol. The higher the KB value, the more powerful the solvent. NLGI GRADE National Lubricating Grease Institute. A numerical scale for classifying the consistency of a particular grease. The most common consistency number is #2. Softer grades, especially #0 and #1, are often used for improved pumpability or low-temperature service. High consistency numbers, #3 through #6 are used for certain high-speed bearings where leakage and sealing are particular concerns. NSF RATING National Sanitation Foundation Registration Program for Proprietary Substances and Nonfood Compounds. This program mirrors the prior USDA program. Product evaluation is based on formulation and label review. Approved products receive a Letter of Authorization and are included on the NSF White Book List of Proprietary Substances and Nonfood Compounds. NON-FERROUS Metals that contain no iron. ODCs Ozone Depleting Compounds. Substances that contribute to the deterioration of the ozone. There are two types of ODCs: Class I and Class II ozone depleters. Class I ODCs are the most harmful to the ozone. Currently listed as Class I ODCs are chlorofluorocarbons (CFCs), carbon tetrachloride, and 1,1,1-Trichloroethane. Class II ODCs are less harmful but still pose a threat. Currently listed as Class II ODCs are HCFCs. OTC STATES Ozone Transport Commission. As of August 1, 2012, the following states have adopted the OTC Model Rule regulating VOC's in consumer products: Connecticut, Delaware, District of Columbia, Illinois, Indiana, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island and Virginia. PH A scale ranging from 0 to 14 used to measure acidity and alkalinity. The lower the number the more acidic; the higher the number, the more alkaline; 7 is neutral. PSI Pound per Square Inch. A unit of pressure equal to the pressure resulting from a force of 1 pound applied uniformly over an area of 1 square inch. SAE Society of Automotive Engineers. SUBSTRATE The surface being cleaned; the substrate may be metal, plastic, ceramic, etc. SURFACTANT A specialized molecule that connects water soluble and water-insoluble groups. TENSILE STRENGTH The strength of different metals to support different loads (masses) before going through the point at which they change from being elastic to being plastic. The tensile strength test measures the elastic and plastic properties of metal. TIMKEN OK LOAD The highest load than can be applied without abrasive wear to a rotating test cup containing a grease sample. The higher the OK number, the better protection a grease provides under severe service. The highest number typically given to any sample is 80. VISCOSITY The resistance to flow or degree of thickening fluid. Flow requires stress; liquids such as additive-free lubricating oils are known as Newtonian fluids in that shear rate is proportional to the pressure or stress applied. This proportion is the coefficient of viscosity. VOCS Volatile Organic Compounds. A class of chemicals that contain carbon and have the potential to form ground- level ozone (smog). Many common items including gasoline, oil-based paints and alcohols produce VOCs. GLOSSARY OF TERMS BIODEGRADABLE A substance that is capable of being broken down into harmless products by the action of living FERROUS FE ERR ROUS Metals related to or containing iron. etals re ated to or conta aining iro on. OTC STATES Ozone Transport Commission. As of August 1, 2012, the following states have adopted the OTC Model Rule G GLOSSARY OF TERMS 71 Customer Care: (800) 272-4620 Technical Assistance: (800) 521-3168 More product information a click away at www.crcindustries.com

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