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Section 608 chapters 1 & 2-a

Horizontales
Readily absorbing moisture from the atmosphere. Term used in describing the quality of refrigeration oils. (Refrigeration oils should not be hygroscopic.)
When one or two refrigerants of the ternary blend may leak at a faster rate than another refrigerant in the same blend. Fractionation describes how refrigerant blends change from a liquid to a vapor or vice versa.
The international agreement at which all parties agreed that ozone-depleting chemicals would be phased-out of production and venting not be allowed. (Canada – September 6, 1987)
Any of a number of refrigerants or refrigerant mixtures designed to replace the current CFC or HCFC refrigerants.
A general term that applies to a family of synthetic oils based on the chemistry of Polyalkylene Glycols. The primary application of PAG oils will be for automotive air conditioning.
Describes the difference in temperature between the evaporator outlet and inlet due to fractionation. Glide can vary, depending on the state of the liquid refrigerant at either end of the evaporator (or condenser) or on pressure losses. For example, at most common system pressures Forane® has a temperature glide of 10°F to 12°F (5.5°C to 6.6°C).
Compounds containing hydrogen, chlorine, fluorine, and carbon.
Verticales
Compounds containing hydrogen, chlorine, fluorine, and carbon.
Substances which are known, or may be reasonably anticipated, to cause or contribute to harmful effects to the ozone layer. Includes all HCFCs.
Previous A special type of oxygen (3 oxygen molecules [O3]). Provides protection to our planet from ultraviolet rays from the sun. It resides in the upper atmosphere where it filters out ultraviolet radiation. Ozone also exists in the lower atmosphere where it is a pollutant in most major cities.
Legislation approved by congress in 1990 aimed at protecting our planet. Title VI – Stratospheric Ozone Protection (venting refrigerants).
A set of three or arranged in threes.
Refrigeration oil currently in use but is not compatible with most of the alternative refrigerants. Refrigerant conversions often require a procedure for the removal of existing mineral oil because of the incompatibility with alternative refrigerants.
Any device that contains and uses Class I or Class II substances as a refrigerant. (All refrigeration and air-conditioning equipment, except those used for military applications.)