Patent Publication Number: US-2019178544-A1

Title: System and method for retrofitting a refrigeration system from hcfc to hfc refrigerant

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     The present application is a Continuation of U.S. patent application Ser. No. 15/255,826, filed Sep. 2, 2016, now U.S. Pat. No. 10,094,603, issued Oct. 9, 2018, which is a Continuation of U.S. patent application Ser. No. 14/877,609, filed Oct. 7, 2015, now U.S. Pat. No. 9,435,575, issued Sep. 6, 2016, which is a Continuation of Ser. No. 14/744,776, filed Jun. 19, 2015, now pending, which each claim benefit of priority from U.S. Provisional Patent Application No. 62/032,129, filed Aug. 1, 2014 and from U.S. Provisional Patent Application No. 62/017,530, filed Jun. 26, 2014, the entirety of which are expressly incorporated herein by reference. This application is related to PCT/US15/37689, filed Jun. 25, 2015. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates to the field of refrigerants, refrigeration systems, and refrigeration system lubricants. 
     BACKGROUND OF THE INVENTION 
     R-407C is an HFC refrigerant replacement for R-22, a HCFC refrigerant, in positive displacement systems such as new or existing residential and commercial air-conditioners and heat pumps. R-407C offers similar performance to R-22 and can be used to retrofit existing R-22 air-conditioning and refrigeration systems. 
     R-407C is a mixture of hydrofluorocarbons used as a refrigerant. It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). R-32, R-125 and R-134a are present in the proportions 23%/25%/52% by weight (a ±2% tolerance is allowed for each of the components). R-407A is a mixture of 20% R32, 40% R125, and 40% R-134a, and is therefore R-407A is similar in many respects to R407C. Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure. R-22 is chlorodifluoromethane. 
     Most compressors require a lubricant to protect internal moving parts. The compressor manufacturer usually recommends the type of lubricant and proper viscosity that should be used to ensure acceptable operation and equipment durability. Recommendations are based on several criteria, which can include: lubricity; lubricant/refrigerant solubility; lubricant/refrigerant miscibility; compatibility with materials of construction; and thermal stability and compatibility with other lubricants. It is important to follow the manufacturer&#39;s recommendations for lubricants to be used with their equipment. 
     Lubricant return to the compressors is very important as well. One factor that affects this is the liquid-phase lubricant/refrigerant miscibility, particularly at evaporator temperatures. Miscibility is the ability of two liquids to mix and form a single liquid phase. Ideally, the lubricant-refrigerant pair have sufficient miscibility or mutual solubility to allow the lubricant to flow with the liquid refrigerant and return to the compressor in a single phase. Even if the lubricant/refrigerant pair are not miscible (two liquid phases form) in the evaporator, they may still have some degree of solubility. Solubility of refrigerant in lubricant lowers lubricant viscosity, which helps it flow through the evaporator and return to the compressor. This is why many refrigeration systems can operate properly, even though the lubricant and refrigerant are immiscible (yet partially soluble) at evaporation temperatures. Other factors, such as refrigerant vapor velocity and system geometry, play key roles in lubricant return. Overall, it is important to note that lubricant/refrigerant miscibility is helpful, but not necessarily essential for proper system operation. 
     In general, R-22 and mineral oil are miscible over most of the expected ranges of operating conditions for normal air conditioning and high to medium temperature operation. Miscibility is generally believed to aid lubricant return to the compressor. The miscibility of refrigerant and lubricant is determined by several factors: the relative amounts of refrigerant and lubricant present, the temperature, the chemical makeup of the lubricant and of the refrigerant, and the viscosity of the lubricant. 
     Therefore, it may be desirable in a retrofit of an existing system of this type to use a miscible lubricant, such as polyol ester lubricant, with R-407C refrigerant. In general, R-407C is miscible with polyol ester (POE) lubricant and immiscible with alkylbenzene and mineral oil lubricant. 
     Residual mineral oil or alkylbenzene left in a refrigeration system after a retrofit to any HFC refrigerant is performed is known to decrease the lubricant/refrigerant miscibility. This is one of the reasons why three oil changes are generally recommended when a system is being converted or retrofit to use HFC refrigerants and POE lubricants. Thus, a traditional recommendation is to replace all mineral oil or alkylbenzene lubricant with POE during a retrofit. 
     Emerson Climate Technologies (Copeland®) provided in 1995 &amp; 2005 the following recommendations when conducting a changeover: “Copeland&#39;s only approved lubricants for use with R-407C are Polyol ester lubricants”; “Mineral oil lubricant, such as 3GS, cannot be used as the compressor lubricant. Copeland recommends the following lubricant choices: Polyol Ester (POE)”; “The mineral oil must be removed from the compressor crankcase. Hermetic compressors will have to be removed from the piping and the lubricant drained out through the suction stub. It is advisable to do an acid test on the lubricant removed”; “Those systems that have oil separators, oil reservoirs, oil floats and suction line accumulators must have the oil drained from them. If the liquid control device is going to be replaced, it is advisable that the suction line, liquid line, and evaporator coil be blown clean using properly regulated dry nitrogen”; “POEs are very hygroscopic. They will very quickly absorb moisture from the air once the container is opened. Once the lubricant is added to the compressor, the compressor should be quickly installed. Like an open container, an open compressor with POE will absorb moisture. Add the correct amount of lubricant, to the compressor. On systems using enhanced surfaces in the heat exchanger, excessive mineral oil can adversely effect the heat transfer due to logging. Therefore, it is desirable to have no more than one percent mineral oil in systems employing these types surfaces.” lvhvac.com/cope_bulletins/95-14.pdf. 
     Dupont (2004) advises that no more than 5% mineral oil remain in the refrigeration system after a changeover from R-22 to R-407C. 
     (www2.dupont.com/Refrigerants/en_US/assets/downloads/h70004_Suva407c_retrofit_guide.pdf) 
     Similarly, Tecumseh advised in 2009 (www.air-innovations.nl/web/pdf/GUIDELINES-FOR-UTILIZATION-OF-R407C.pdf):
         Synthetic Lubricants: Polyol Esters (POEs) And Polyvinyl Ethers (PVEs)   A) Miscibility   1. Miscibility is the ability of the lubricant and the refrigerant to mix. This miscibility is a very important factor in providing proper heat transfer and in returning lubricant to the compressor in a refrigeration system over its range of operating temperatures.   2. R407C and Mineral oils (MO) are not miscible   3. Polyol Ester (POE) as well as Polyvinyl Ether (PVE) oils and R407C are miscible.   4. R407C and Synthetic Alkylate (SA) oils are partially miscible . . . .   C) Compatibility . . .   2. While polyol ester and polyvinyl ether oils are compatible with mineral oils, they should not be indiscriminately mixed with mineral oils in R407C refrigerant systems. This practice could result in the inability of the oil to return to the compressor and/or reduce heat transfer performance in the evaporator. However, small amounts up to 5% of mineral oil are acceptable in field retrofit situations (1% or less is preferred).       

     Ennio Campagna et al., “The Use of R-407C: Applications and Guidelines”, makina.beun.edu.tr/eskisite/akademik_kadro/meyriboyun/mak723/The_Use_of_R-407C.pdf, states:
         1) General Considerations for HFC Refrigerants   Systems which use R407C normally have compressors charged with a miscible lubricant such as POE (polyolester). There are many manufacturers and grades of these lubricants. R-407C is generally not used with mineral or alkyl-benzene (i.e. hydrocarbon based) oils as the miscibility is not adequate to ensure satisfactory oil return to the compressor. It is very important that, when servicing a system and oil is needed, the correct oil be used. Seek guidance from the system or compressor manufacturer on which specific oil to use in a maintenance situation.   b) System contamination with mineral oils, or with R22, can have a serious effect on performance and system reliability. Systems which use enhanced tube heat exchangers (evaporators and condensers) are particularly vulnerable to performance degradation arising from the presence of HC based oils. It is strongly recommended that dedicated service gauge sets are used for R407C to prevent inadvertent contamination.       

     Similarly, Herronhill provides general guidelines to assist in the replacement of R22 condensing units with equivalent R407C units (2004, www.heronhill.co.uk/technical-information/40/converting-r22-systems-to-r407c), stating “Condensing units built and supplied by IMI Air Conditioning Ltd. (now Marstair Ltd) before 1999, for use with R22 will contain mineral oil. R407C units will contain polyolester oil (POE). Check the compressor label to confirm the type of oil in the system. For safe system operation it is essential to remove the mineral oil from the existing system, as R407C is not compatible with mineral oil. On completion of the change over the concentration of mineral oil remaining in the system should not exceed 5% of the total oil charge. 
     Sundaresan, S. G.; Pate, M. B.; Doerr, T. M.; and Ray, D. T., “A Comparison of the Effects of POE and Mineral Oil Lubricants on the In-Tube Evaporation of R-22, R-407C and R-410A” (1996). International Refrigeration and Air Conditioning Conference. Paper 322. docs.lib.purdue.edu/iracc/322, describe tests on the heat transfer efficiency of R-22, R-407C and R-410A on smooth and finned tubes, when neat, mixed with mineral oil, and when mixed with POE oil. POE-mineral oil mixtures were not tested. The heat transfer efficiency was higher for R-407C mixed with POE than with mineral oil. 
     Some more recent consideration of the choice or lubricant considers mixtures of lubricants, including mineral oil (MO) and polyol esters (POE). For example, The News, (Peter Powell, Dec. 3, 2012, www.achrnews.com/articles/print/121529-retrofit-round-up-plenty-of-options) states:
         Retrofit Round-up: Plenty of Options   Because no one HFC refrigerant can be retrofitted efficiently into the entire range of R-22 equipment, a wide and sometimes changing variety of HFCs have entered the market. The NEWS contacted a number of refrigerant manufacturers asking them to discuss some of their most popular HFCs for R-22 retrofits, the range of applications, and servicing tips.   While this can provide a guideline, The NEWS urges readers to contact refrigerant manufacturers directly to discuss the specific R-22 system being considered for retrofit and what HFC refrigerants might best work in such applications. This listing is in alphanumerical order according to ASHRAE designations.   R-407A   Gus Rolotti, technical marketing director of Arkema&#39;s North American fluorochemicals business, described R-407A as a refrigerant for low- and medium-temp refrigeration. “Both R-407A and R-407C are well proven in the industry and provide good performance coupled with a lower GWP. They require the use of a POE oil.” Because of that, there needs to be a changeout of the mineral oil in an existing R-22 system.   Noted Rolotti, “First, fix any leaks and identify components that may need to be replaced or fixed. Recover the R-22 completely, repair/replace any components as identified earlier and pull the system into a deep vacuum. Remove the required amount of mineral oil either by flushing with an external agent or using the R-22 from the system. Once most of the mineral oil is removed, replace it with POE oil and pull the system into a deep vacuum again. Refill with the appropriate amount of the retrofit refrigerant and run the system to set up controls and operating conditions. It is recommended that the filter drier is always replaced when the system is opened to ensure that there is fresh desiccant available to dry the system.”   R-407C   Arkema&#39;s Rolotti considers R-407C a choice for air conditioning. Retrofit procedures are similar to those with R-407A refrigerant.   In his comments regarding R-407C, Ron Vogl, technical marketing manager for Honeywell Refrigerants, described it as a choice for residential and light commercial a/c applications. The retrofit process for R-407C, he said, involves recovering R-22. Then, regarding oil, Vogl said, “POE is recommended. If existing MO is used, the addition of some POE to the system is required for proper oil return.” The use of the refrigerant requires a minimum of 20 percent POE for close-coupled a/c systems with no liquid receivers. No TXV change required, but minor adjustments may be needed. Replace any O-rings, seals, and other elastomers used in the system. In most air conditioning and heat pump systems this only applies to the Schrader valve seal and cap seal material. The next step is to evacuate and recharge. (Pounds of 407C=pounds of original refrigerant×70.6 divided by 73.9.) Then adjust system safety and operating controls; label system indicating refrigerant and charged lubricant.   National Refrigerants, states (date unknown, www.nationalref.com/pdf/R22_Alternatives.pdf):   Will the blends work with mineral oil?   HFC Refrigerants with Mineral Oil   They don&#39;t mix so the mineral oil will form a separate layer in the receiver or other high-side liquid hold up.   Mineral Oil will remain thick on the low side and not be returned back to the compressor.   Will the blends work with mineral oil?   Hydrocarbons (HC) in Blends   HC soaks into mineral oil and thins it so it will circulate easily around the system.   The thinned mineral oil will move easily on the low side.   The mineral oil/HC mixture will still not mix with liquid HFC on the high side of the system. A layer of oil will still form in the receiver or other liquid hold-up.   Partial POE Retrofit   Some amount of mineral oil is replaced with POE (does not require 3 flushes or less than 5% mineral oil).   The POE mixes well with the mineral oil, and the resulting mixture dissolves somewhat into liquid HFC.   The oil mixture will be carried by the liquid HFC out of the receiver.   National Refrigerants testing has shown that as little as 10% POE in mineral oil will circulate as much as an older compressor will pump out into a system.   These tests have also shown that there is very little difference in oil solubility with all of the blends on the market, regardless of the hydrocarbon content in the blend. Partial POE works with all of the blends, but hydrocarbons do not appear to help with liquid solubility of mineral oil with HFCs.       

     Therefore, there has been some evolution as to whether mineral oil can remain in the refrigeration system after a retrofit, with the permissible proportion of mineral oil increasing. In particular, National Refrigerants proposes a partial POE retrofit, with greater than 5% mineral oil remaining. However, the existing recommendations appear to require empirical testing for cases other than less than 5% mineral oil remaining. 
     See, U.S. Pat. Nos. 2,834,748; 2,846,458; 2,889,379; 2,917,480; 2,931,840; 2,970,988; 3,085,918; 3,384,828; 3,723,318; 3,884,828; 4,138,855; 4,198,313; 4,272,960; 4,465,786; 4,482,465; 4,788,352; 4,798,818; 4,810,403; 4,941,986; 4,944,890; 5,026,497; 5,053,155; 5,080,823; 5,108,637; 5,182,040; 5,227,245; 5,304,320; 5,318,716; 5,360,566; 5,370,812; 5,387,357; 5,417,871; 5,425,890; 5,458,798; 5,616,275; 5,622,644; 5,624,596; 5,626,790; 5,648,017; 5,672,293; 5,685,163; 5,714,083; 5,785,883; 5,788,886; 5,811,603; 5,968,406; 6,025,532; 6,106,740; 6,111,150; 6,117,356; 6,235,951; 6,258,292; 6,316,681; 6,374,629; 6,426,019; 6,516,837; 6,526,764; 6,589,355; 6,604,368; 6,606,868; 6,629,419; 6,673,976; 6,783,691; 6,858,571; 6,991,743; 7,238,299; 7,279,451; 7,341,984; 7,442,321; 7,465,698; 7,524,805; 7,629,306; 7,767,638; 7,825,081; 7,829,748; 7,833,433; 7,846,355; 7,862,742; 7,972,528; 8,008,244; 8,053,404; 8,101,672; 8,148,317; 8,444,874; 8,465,664; 8,551,354; 8,557,136; U.S. Published Patent Application Nos. 20020046568; 20030042463; 20040089839; 20040119047; 20040127383; 20040256594; 20050233923; 20050233931; 20050233932; 20050245421; 20050247905; 20060019857; 20060025322; 20060043331; 20060058560; 20060243944; 20060243945; 20070007488; 20070010592; 20070069175; 20070108403; 20070210275; 20070210276; 20070290163; 20070290177; 20080069177; 20080075673; 20080099190; 20080121837; 20080171652; 20080230738; 20080308763; 20080314073; 20090041677; 20090053695; 20090120619; 20090158771; 20090224199; 20090242828; 20090253820; 20090278076; 20090285764; 20090302285; 20090305876; 20100025619; 20100044619; 20100048961; 20100075046; 20100122545; 20100127209; 20100200798; 20110162410; 20110226983; 20110289748; 20120138846; 20120187331; 20120312048; 20130075063; 20130119299; 20130126776; 20130126777; 20130126778; CN101864276; CN95117074; DE4116274; EP0398147; EP0430169; EP0509673; EP0539952; EP0565265; EP0582451; EP0608164; EP0659862; EP0720639; EP0779352; EP0974571; EP1167894; EP1193305; EP1716216; EP1832640; EP1985680; EP2036943; EP2149592; EP2246649; EP2249104; GB2007000746; GB2435747; GB2440258; JP4110388; RU2073058; WO1998050331; WO2004037752; WO2004037913; WO2005042663; WO2005083028; WO2005103190; WO2005103191; WO2005103192; WO2005105947; WO2005108522; WO2005108523; WO2006094303; WO2007002625; WO2007035697; WO2007053697; WO2007099350; WO2007109748; WO2008027555; WO2008065011; WO2008076272; WO2008121776; WO2008121783; WO2008121785; WO2009047535; WO2009114397; WO2009134957; WO2009151669; WO2010000993; WO2010000994; WO2010002020; WO2010002023; WO2010056695; WO2010059677; WO2010065005; WO2010075046; WO2010088320; WO2010119265; WO2011019350; each of which is expressly incorporated herein by reference in its entirety. 
     SUMMARY OF THE INVENTION 
     The present invention provides a premixed HFC refrigerant and compatible POE lubricant, e.g., in a transport container. The amount of lubricant is selected to an amount between about 5% to 20% by weight of the refrigerant. Preferably, the amount is 8% by weight. 
     The amount of POE should be at least 10% of the total lubricant amount, with about 20% POE by weight of refrigerant representing the amount of POE in the absence of mineral oil. 
     The mixture is preferably provided in a transport container, typically DOT approved, such as a DOT-39 container. 
     The refrigerant-lubricant mixture is charged into the refrigeration system after recovery of the R-22 from the system, without special efforts to remove the mineral oil lubricant. Assuming that the residual mineral oil is 8-24% of the charge, and the mixed refrigerant includes 8% POE, the resulting mixture is about 25-50% of the total lubricant, and the resulting mixed lubricant is 16-32% of refrigerant charge. Therefore, the present technology provides a compromise amount of lubricant that is sufficient to provide a charge to a range of refrigeration systems to be retrofitted, without having to remove mineral oil already in the system, measure the amount of oil removed or infer the total amount, measure an amount of POE to be added to the system based on the actual amount of R-407C added to the system, or measuring mineral oil/POE ratios. 
     Therefore, the present technologies vastly simplify the process for retrofitting, while achieving good results. Indeed, preliminary tests show that the efficiency of an R-22 air conditioning system is improved after the retrofitting, a surprising result given that the system itself is optimized for R-22 and mineral oil. 
     The container may be, for example, a 10, 15, 20, 30, 40, 50, 96, 123 pound or larger container. The amount of lubricant may be, for example, 0.8, 1.2, 1.6, 2.4, 3.2, 4, 8, or 10 pounds (8% lubricant). Bulk quantities may also be provided. 
     The amount of POE may be varied, for example, and may be about 5%, 6%, 7%, 7.5%, 8%, 9%, 10%, 12%, 12.5%, 15%, or the like. The precision of measurement may be, for example. ±0.1%, ±0.2%, ±0.25%, ±0.3%, ±0.5%, ±0.75%, ±1%, or ±2%. Preferably, the precision is within ±0.5%. 
     The container may be a DOT 3, 3A, 3AA, 3AL, 3B, 3BN, 3E, 4B, 4BA, 4B240ET, 4BW, 4E, 39, steel drum, for example: DOT-3AL1800; DOT 4D; DOT-3; DOT-39; DOT-3A; DOT-3A1000; DOT-3A1200; DOT-3A150; DOT-3A1800; DOT-3A2000; DOT-3A225; DOT-3A240; DOT-3A2400; DOT-3A300; DOT-3A400; DOT-3A480; DOT-3A480X; DOT-3AA; DOT-3AA1000; DOT-3AA1200; DOT-3AA150; DOT-3AA1800; DOT-3AA2000; DOT-3AA225; DOT-3AA240; DOT-3AA2400; DOT-3AA300; DOT-3AA400; DOT-3AA480; DOT-3AAX1800; DOT-3AAX2000; DOT-3AAX2200; DOT-3AAX2400; DOT-3AL; DOT-3AL1000; DOT-3AL150; DOT-3AL1800; DOT-3AL2000; DOT-3AL225; DOT-3AL240; DOT-3AL2400; DOT-3AL400; DOT-3AL480; DOT-3AX1800; DOT-3AX2000; DOT-3AX2200; DOT-3AX2400; DOT-3B; DOT-3B150; DOT-3B1800; DOT-3B225; DOT-3B240; DOT-3B300; DOT-3B400; DOT-3BN400; DOT-3BN480; DOT-3E1800; DOT-3HT; DOT-3HT2000; DOT-3T1800; DOT-3T2000; DOT-3T2200; DOT-3T2400; DOT-4A; DOT-4AA480; DOT-4B; DOT-4B150; DOT-4B150; DOT-4B225; DOT-4B240; DOT-4B240ET; DOT-4B300; DOT-4B400; DOT-4B480; DOT-4BA; DOT-4BA225; DOT-4BA240; DOT-4BA300; DOT-4BA400; DOT-4BW; DOT-4BW225; DOT-4BW240; DOT-4BW300; DOT-4BW400; DOT-4BW480; DOT-4DA; DOT-4DS; DOT-4E225; DOT-4E240; DOT-4L; DOT-AAX2400; and ICC-3E1800. 
     The preferred embodiment encompasses R-407C. However, the method is more generally directed to a retrofitting of systems employing a range of refrigerants that generally require mineral oil, alkane or alkylbenzene lubricants (CFC, PCC, HCC, HCFC, CFO, HCFO), with refrigerants that generally require polymeric or oxygenated lubricants, e.g., POE, PVE (HFC, PFO) (CFC=Chlorofluorocarbon, CFO=Chlorofluoroolefin, HCFC=Hydrochlorofluorocarbon, HCFO=Hydrochlorofluoroolefin, HFC=Hydrofluorocarbon, HFO=Hydrofluoroolefin, PCC=Perchlorocarbon). See Table 1, en.wikipedia.org/wiki/List_of_refrigerants. 
     It is therefore an object to provide a transportable container for charging a refrigerant system, having a charging port, containing a polyol ester (POE) lubricant and a compatible HFC refrigerant in a predetermined proportion. The proportion may be at least 2%, 3%, or 5% by weight and less than 25%, 20%, or 15% by weight, and preferably 8% by weight. 
     It is another object to provide a composition for retrofitting an R-22 refrigeration system, comprising POE and R-407C. The POE may be present at between 2-25%, 3-20%, 5-15%, or preferably 8% by weight, with the balance substantially R-407C. 
     It is a further object to provide a method for retrofitting a refrigeration system from R-22 refrigerant to R-407C refrigerant, comprising evacuating the R-22 refrigerant from the refrigeration system while maintaining at least 25% of the lubricant, wherein the lubricant is not POE, and adding a premixture of POE mixed in R-407C to charge the refrigeration system. The POE may be present at between 2-25%, 3-20%, 5-15%, or preferably 8% by weight, with the balance substantially R-407C. 
     It is a still further object to provide a retrofit kit for an R-22 refrigeration system, comprising a DOT-approved transport container for R-407C containing a mixture of R-407C and POE, and at least one replacement seal compatible with R-407C. The POE may be present at between 2-25%, 3-20%, 5-15%, or preferably 8% by weight, with the balance substantially R-407C. 
     It is a still further object to provide a method for retrofitting a hermetically sealed refrigeration system from an HCFC refrigerant compatible with a mineral oil or alkyl benzene lubricant to a HFC refrigerant compatible with polyol ester lubricant, comprising: providing a transport container containing the HFC refrigerant mixed with polyol ester lubricant; withdrawing the HCFC from within the refrigeration system through a charge-discharge port, leaving at least a portion of the mineral oil or alkyl benzene lubricant; and charging the refrigeration system from the transport container with the HFC mixed with the polyol ester lubricant. The polyol ester lubricant may be present at between 2-25%, 3-20%, 5-15%, or preferably 8% by weight, with the balance substantially HFC. 
     Another object is to provide a method for retrofitting a system from an HCFC refrigerant compatible with a mineral oil or alkyl benzene lubricant to an HFC refrigerant compatible with a polyol ester lubricant, comprising: evacuating the HCFC from the system, leaving at least a portion of the mineral oil or alkyl benzene lubricant; and charging the refrigeration system with an HFC refrigerant mixed with a polyol ester lubricant in a predetermined ratio of 5-15% by weight. 
     A kit is provided for retrofitting an HCFC refrigeration system having residual mineral oil lubricant, comprising: a transport container, containing an HFC refrigerant mixed polyol ester lubricant. A kit is also provided for retrofitting an R-22 refrigeration system having residual mineral oil lubricant, comprising: a U.S. Department of Transportation certified transport container; and R-407C mixed with polyol ester lubricant. The polyol ester lubricant may be present at between 2-25%, 3-20%, 5-15%, or preferably 8% by weight. The mineral oil or alkyl benzene lubricant may be a mineral oil lubricant. 
     The HCFC to be replaced may comprise R-22, R-401A, R-409A, R-401B, R-409B, R-402A, R-402B, R-403B, R-408A, R-502, and/or mixtures of HCFCs, for example as provided in Table 1. 
     The HFC may comprise R-134a, R-404A, R-407A, R-407C, R-407F, R-410A, R-417A, R-417B, R-422A, R-422B, R-422C, R-422D, R-424A, R-427A, R-428A, R-434A, R-438A, R-442A, and R-507A, or for example, other blends of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). Other HFCs or HFC blends, or HFC/HC blends, for example as provided in Table 1, may also be employed. The HFC may be a zeotropic blend. 
     The refrigeration system after recharging may have a concentration of about 15-32% mixed lubricant, or a concentration of about 20-25% mixed lubricant, or a concentration of about 15-25% mixed lubricant, by weight. 
     The transport container may be U.S. Department of Transportation compliant, e.g., DOT-39. 
     The metrics recited herein are intended to be interpreted according to common understanding and usage among those skilled in the art of refrigerant manufacture, distribution, and refrigeration system maintenance. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows a flowchart of a method according to the present invention. 
         FIG. 2  shows a schematic diagram of the refrigeration system, after an HCFC refrigerant is removed, and while an HFC refrigerant and POE lubricant is being charged. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       FIG. 1  shows a flowchart of a method according to the present invention. A refrigerant retrofit kit is provided, having within a transportable container, a mixture of a refrigerant and a compatible POE lubricant. The refrigerant is typically an HFC refrigerant. The HCFC refrigerant is evacuated from a refrigeration system to be retrofit, and a portion of the existing lubricant, which is a mineral oil or alkyl benzene lubricant, is removed through the charge port of the refrigeration system, without disassembly of the system. A portion of the mineral oil or alkyl benzene lubricant remains in the refrigeration system. The refrigeration system is then charged with the mixture of the refrigerant and the compatible POE lubricant through the charge port. 
     As shown in the schematic representation in  FIG. 2 , the refrigeration system includes a compressor, condenser and evaporator, as well as a charge port. A reservoir pools liquid refrigerant, as well as lubricants found within the system. After the HCFC refrigerant is removed from the system, a portion of the mineral oil or alkyl benzene lubricant remains in the system. During charging, the new refrigerant, typically an HFC, with a compatible POE lubricant, is drawn into the refrigeration system through the charge port, resulting in a mixed lubricant containing mineral oil or alkyl benzene lubricant and POE. 
     Example 1 
     A test was conducted of a residential air conditioning unit to determine the results of retrofitting an R-22 system with R-407C. In the test, the R-22 system, which was design and manufactured optimally for R-22, and used a mineral oil lubricant, was retrofitted with R-407C. 
     Instead of removing all of the mineral oil in the system, and replacing it with a defined amount of POE oil, which is required for R-407C, the R-22 was removed, and the residual mineral oil allowed to remain. 
     The evacuated system was recharged with a premixed quantity of R-407C with 8% by weight POE oil. Since R-407C is charged in the liquid phase, all of the oil, and most of the R-407C was transferred to the system from a transport container, e.g., DOT-39. The final POE concentration is estimated at 10-15% of the total oil in the system. 
     Prior to retrofitting, system was run for 13 hours over two days with the R-22 to collect the baseline data. The R-22 was then evacuated, and charged with R-407C to about 85% of the R-22 charge. The retrofitted refrigeration system with R-407C was then run for 91 hours. 
     The operating temperatures for R-22 (&gt;86F and &lt;86F) and R-407C (&lt;86F) were not the same, so performance measurements are not directly comparable, but the results support a conclusion that the R-407C does not degrade system efficiency performance. 
     Therefore, despite the various unknowns, including the amount of mineral oil remaining in the system, migration characteristics of the mixed lubricants around the system, the impact of the various lubricant phases on compressor lubrication, the operation of the system with R-407C was improved over the R-22 implementation. 
     Comparative Example 1 
     See: www.honeywell-refrigerants.com/india/?document=guide-to-retrofitting-ac-systems-from-r-22-to-r-422d-or-r-407c&amp;download=1; 
     www.honeywell.com/sites/servlet/com.merx.npoint.servlets.DocumentServlet?docid=DB0284B 88-942E-BOAS-4028-CAFB85BB40AB, which are expressly incorporated herein by reference. 
     Comparative Example 2 
     See: 
     www2.dupont.com/Refrigerants/en_US/assets/downloads/h70004_Suva407C_retrofit_guide.pdf, which is expressly incorporated herein by reference. 
     Comparative Example 3 
     See: opi.emersonclimate.com/CP1D/GRAPHICS/Types/AEB/95-14.pdf, which is expressly incorporated herein by reference. 
     Comparative Example 4 
     See: www.refrigerants.com/pdf/Nat-R407Broch.pdf, which is expressly incorporated herein by reference. 
     Comparative Example 5 
     See: neilorme.com/Tecumseh%20Guidelines%20R407c.shtml, which is expressly incorporated herein by reference. 
     Comparative Example 6 
     See: www.bristolcompressors.com/files/1313/5464/2815/application_bulletin_124.pdf, which is expressly incorporated herein by reference. 
     Comparative Example 7 
     See: americas.forane.com/export/sites/forane-americas/.content/medias/downloads/literature/forane-technical-digest.pdf, which is expressly incorporated herein by reference. 
     Although the present system and/or approach has been described with respect to at least one illustrative example, many variations and modifications will become apparent to those skilled in the art upon reading the specification. It is therefore the intention that the appended claims be interpreted as broadly as possible in view of the related art to include all such variations and modifications. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 1 
               
               
                   
               
             
            
               
                   
                   
                   
                   
                 CAS registry 
               
               
                   
                 ASHRAE 
                   
                   
                 number/Blend 
               
               
                 Type 
                 Number 
                 IUPAC Chemical Name 
                 Molecular Formula 
                 Name 
               
               
                   
               
               
                 PCC 
                 R-10 
                 Carbon tetrachloride 
                 CCl 4   
                 56-23-5 
               
               
                   
                   
                 (Tetrachloromethane) 
               
               
                 CFC 
                 R-11 
                 Trichlorofluoromethane 
                 CCl 3 F 
                 75-69-4 
               
               
                 CFC 
                 R-12 
                 Dichlorodifluoromethane 
                 CCl 2 F 2   
                 75-71-8 
               
               
                 H 
                 R-12B1 
                 Bromochlorodifluoromethane 
                 CBrClF 2  or CF 2 ClBr 
                 353-59-3 
               
               
                 H 
                 R-12B2 
                 Dibromodifluoromethane 
                 CBr 2 F 2   
                 75-61-6 
               
               
                 CFC 
                 R-13 
                 Chlorotrifluoromethane 
                 CClF 3   
                 75-72-9 
               
               
                 H 
                 R-13B1 
                 Bromotrifluoromethane 
                 CF 3 Br 
                 75-63-8 
               
               
                 PFC 
                 R-14 
                 Tetrafluoromethane 
                 CF 4   
                 75-73-0 
               
               
                 HCC 
                 R-20 
                 Chloroform (Trichloromethane) 
                 CHCl 3   
                 67-66-3 
               
               
                 HCFC 
                 R-21 
                 Dichlorofluoromethane 
                 CHFCl 2   
                 75-43-4 
               
               
                 HCFC 
                 R-22 
                 Chlorodifluoromethane 
                 CHClF 2   
                 75-45-6 
               
               
                 H 
                 R-22B1 
                 Bromodifluoromethane 
                 CHBrF 2  or CHF 2 Br 
                 1511-62-2 
               
               
                 HFC 
                 R-23 
                 Trifluoromethane (Fluoroform) 
                 CHF 3   
                 75-46-7 
               
               
                 HCC 
                 R-30 
                 Dichloromethane (Methylene 
                 CH 2 Cl 2   
                 75-09-2 
               
               
                   
                   
                 chloride) 
               
               
                 HCFC 
                 R-31 
                 Chlorofluoromethane 
                 CH 2 FCl 
                 593-70-4 
               
               
                 HFC 
                 R-32 
                 Difluoromethane 
                 CH 2 F 2   
                 75-10-5 
               
               
                 HCC 
                 R-40 
                 Chloromethane 
                 CH 3 Cl 
                 74-87-3 
               
               
                 HFC 
                 R-41 
                 Fluoromethane 
                 CH 3 F 
                 593-53-3 
               
               
                 HC 
                 R-50 
                 Methane 
                 CH 4   
                 74-82-8 
               
               
                 PCC 
                 R-110 
                 Hexachloroethane 
                 C 2 Cl 6   
                 67-72-1 
               
               
                 CFC 
                 R-111 
                 Pentachlorofluoroethane 
                 C 2 FCl 5   
                 354-56-3 
               
               
                 CFC 
                 R-112 
                 1,1,2,2-Tetrachloro-1,2- 
                 C 2 F 2 Cl 4   
                 76-12-0 
               
               
                   
                   
                 difluoroethane 
               
               
                 CFC 
                 R-112a 
                 1,1,1,2-Tetrachloro-2,2- 
                 C 2 F 2 Cl 4   
                 76-11-9 
               
               
                   
                   
                 difluoroethane 
               
               
                 CFC 
                 R-113 
                 1,1,2-Trichlorotrifluoroethane 
                 C 2 F 3 Cl 3   
                 76-13-1 
               
               
                 CFC 
                 R-113a 
                 1,1,1-Trichlorotrifluoroethane 
                 C 2 F 3 Cl 3   
                 354-58-5 
               
               
                 CFC 
                 R-114 
                 1,2-Dichlorotetrafluoroethane 
                 C 2 F 4 Cl 2   
                 76-14-2 
               
               
                 CFC 
                 R-114a 
                 1,1-Dichlorotetrafluoroethane 
                 C 2 F 4 Cl 2   
                 374-07-2 
               
               
                 H 
                 R-114B2 
                 1,2-Dibromotetrafluoroethane 
                 C 2 F 4 Br 2   
                 124-73-2 
               
               
                 CFC 
                 R-115 
                 Chloropentafluoroethane 
                 C 2 F 5 Cl 
                 76-15-3 
               
               
                 PFC 
                 R-116 
                 Hexafluoroethane 
                 C 2 F 6   
                 76-16-4 
               
               
                 HCC 
                 R-120 
                 Pentachloroethane 
                 C 2 HCl 5   
                 76-01-7 
               
               
                 HCFC 
                 R-121 
                 1,1,2,2-Tetrachloro-1-fluoroethane 
                 C 2 HFCl 4   
                 354-14-3 
               
               
                 HCFC 
                 R-121a 
                 1,1,1,2-Tetrachloro-2-fluoroethane 
                 C 2 HFCl 4   
                 354-11-0 
               
               
                 HCFC 
                 R-122 
                 1,1,2-Trichloro-2,2-difluoroethane 
                 C 2 HF 2 Cl 3   
                 354-21-2 
               
               
                 HCFC 
                 R-122a 
                 1,1,2-Trichloro-1,2-difluoroethane 
                 C 2 HF 2 Cl 3   
                 354-15-4 
               
               
                 HCFC 
                 R-122b 
                 1,1,1-Trichloro-2,2-difluoroethane 
                 C 2 HF 2 Cl 3   
                 354-12-1 
               
               
                 HCFC 
                 R-123 
                 2,2-Dichloro-1,1,1-trifluoroethane 
                 C 2 HF 3 Cl 2   
                 306-83-2 
               
               
                 HCFC 
                 R-123a 
                 1,2-Dichloro-1,1,2-trifluoroethane 
                 C 2 HF 3 Cl 2   
                 354-23-4 
               
               
                 HCFC 
                 R-123b 
                 1,1-Dichloro-1,2,2-trifluoroethane 
                 C 2 HF 3 Cl 2   
                 812-04-4 
               
               
                 HCFC 
                 R-124 
                 2-Chloro-1,1,1,2-tetrafluoroethane 
                 C 2 HF 4 Cl 
                 2837-89-0 
               
               
                 HCFC 
                 R-124a 
                 1-Chloro-1,1,2,2-tetrafluoroethane 
                 C 2 HF 4 Cl 
                 354-25-6 
               
               
                 HFC 
                 R-125 
                 Pentafluoroethane 
                 C 2 HF 5   
                 354-33-6 
               
               
                 HFC 
                 R-E125 
                 Pentafluorodimethyl ether 
                 C 2 HF 5 O 
                 3822-68-2 
               
               
                 HCC 
                 R-130 
                 1,1,2,2-Tetrachloroethane 
                 C 2 H 2 Cl 4   
                 79-34-5 
               
               
                 HCC 
                 R-130a 
                 1,1,1,2-Tetrachloroethane 
                 C 2 H 2 Cl 4   
                 630-20-6 
               
               
                 HCFC 
                 R-131 
                 1,1,2-Trichloro-2-fluoroethane 
                 C 2 H 2 FCl 3   
                 359-28-4 
               
               
                 HCFC 
                 R-131a 
                 1,1,2-Trichloro-1-fluoroethane 
                 C 2 H 2 FCl 3   
                 811-95-0 
               
               
                 HCFC 
                 R-131b 
                 1,1,1-Trichloro-2-fluoroethane 
                 C 2 H 2 FCl 3   
                 2366-36-1 
               
               
                 HCFC 
                 R-132 
                 Dichlorodifluoroethane 
                 C 2 H 2 F 2 Cl 2   
                 25915-78-0 
               
               
                 HCFC 
                 R-132a 
                 1,1-Dichloro-2,2-difluoroethane 
                 C 2 H 2 F 2 Cl 2   
                 471-43-2 
               
               
                 HCFC 
                 R-132b 
                 1,2-Dichloro-1,1-difluoroethane 
                 C 2 H 2 F 2 Cl 2   
                 1649-08-7 
               
               
                 HCFC 
                 R-132c 
                 1,1-Dichloro-1,2-difluoroethane 
                 C 2 H 2 F 2 Cl 2   
                 1842-05-3 
               
               
                 H 
                 R-132bB2 
                 1,2-Dibromo-1,1-difluoroethane 
                 C 2 H 2 Br 2 F 2   
                 75-82-1 
               
               
                 HCFC 
                 R-133 
                 1-Chloro-1,2,2-Trifluoroethane 
                 C 2 H 2 F 3 Cl 
                 431-07-2 
               
               
                 HCFC 
                 R-133a 
                 1-Chloro-2,2,2-Trifluoroethane 
                 C 2 H 2 F 3 Cl 
                 75-88-7 
               
               
                 HCFC 
                 R-133b 
                 1-Chloro-1,1,2-Trifluoroethane 
                 C 2 H 2 F 3 Cl 
                 421-04-5 
               
               
                 HFC 
                 R-134 
                 1,1,2,2-Tetrafluoroethane 
                 C 2 H 2 F 4   
                 359-35-3 
               
               
                 HFC 
                 R-134a 
                 1,1,1,2-Tetrafluoroethane 
                 C 2 H 2 F 4   
                 811-97-2 
               
               
                 HFC 
                 R-E134 
                 Bis(difluoromethyl)ether 
                 C 2 H 2 F 4 O 
                 1691-17-4 
               
               
                 HCC 
                 R-140 
                 1,1,2-Trichloroethane 
                 C 2 H 3 Cl 3   
                 79-00-5 
               
               
                 HCC 
                 R-140a 
                 1,1,1-Trichloroethane (Methyl 
                 C 2 H 3 Cl 3  or CH 3 CCl 3   
                 71-55-6 
               
               
                   
                   
                 chloroform) 
               
               
                 HCFC 
                 R-141 
                 1,2-Dichloro-1-fluoroethane 
                 C 2 H 3 FCl 2   
                 430-57-9 
               
               
                 H 
                 R-141B2 
                 1,2-Dibromo-1-fluoroethane 
                 C 2 H 3 Br 2 F 
                 358-97-4 
               
               
                 HCFC 
                 R-141a 
                 1,1-Dichloro-2-fluoroethane 
                 C 2 H 3 FCl 2   
                 430-53-5 
               
               
                 HCFC 
                 R-141b 
                 1,1-Dichloro-1-fluoroethane 
                 C 2 H 3 FCl 2   
                 1717-00-6 
               
               
                 HCFC 
                 R-142 
                 Chlorodifluoroethane 
                 C 2 H 3 F 2 Cl 
                 25497-29-4 
               
               
                 HCFC 
                 R-142a 
                 1-Chloro-1,2-difluoroethane 
                 C 2 H 3 F 2 Cl 
                 25497-29-4 
               
               
                 HCFC 
                 R-142b 
                 1-Chloro-1,1-difluoroethane 
                 C 2 H 3 F 2 Cl 
                 75-68-3 
               
               
                 HFC 
                 R-143 
                 1,1,2-Trifluoroethane 
                 C 2 H 3 F 3   
                 430-66-0 
               
               
                 HFC 
                 R-143a 
                 1,1,1-Trifluoroethane 
                 C 2 H 3 F 3   
                 420-46-2 
               
               
                 HFC 
                 R-143m 
                 Methyl trifluoromethyl ether 
                 C 2 H 3 F 3 O 
                 421-14-7 
               
               
                 HFC 
                 R-E143a 
                 2,2,2-Trifluoroethyl methyl ether 
                 C 3 H 5 F 3 O 
                 460-43-5 
               
               
                 HCC 
                 R-150 
                 1,2-Dichloroethane 
                 C 2 H 4 Cl 2   
                 107-06-2 
               
               
                 HCC 
                 R-150a 
                 1,1-Dichloroethane 
                 C 2 H 4 Cl 2   
                 75-34-3 
               
               
                 HCFC 
                 R-151 
                 Chlorofluoroethane 
                 C 2 H 4 ClF 
                 110587-14-9 
               
               
                 HCFC 
                 R-151a 
                 1-Chloro-1-fluoroethane 
                 C 2 H 4 ClF 
                 1615-75-4 
               
               
                 HFC 
                 R-152 
                 1,2-Difluoroethane 
                 C 2 H 4 F 2   
                 624-72-6 
               
               
                 HFC 
                 R-152a 
                 1,1-Difluoroethane 
                 C 2 H 4 F 2   
                 75-37-6 
               
               
                 HCC 
                 R-160 
                 Chloroethane (ethyl chloride) 
                 C 2 H 5 Cl 
                 75-00-3 
               
               
                 HFC 
                 R-161 
                 Fluoroethane 
                 C 2 H 5 F 
                 353-36-6 
               
               
                 HC 
                 R-170 
                 Ethane 
                 C 2 H 6  or CH 3 CH 3   
                 74-84-0 
               
               
                 HC 
                 R-E170 
                 Dimethyl ether 
                 CH 3 OCH 3   
                 115-10-6 
               
               
                 CFC 
                 R-211 
                 1,1,1,2,2,3,3-Heptachloro-3- 
                 C 3 FCl 7   
                 422-78-6 
               
               
                   
                   
                 fluoropropane 
               
               
                 CFC 
                 R-212 
                 Hexachlorodifluoropropane 
                 C 3 F 2 Cl 6   
                 76546-99-3 
               
               
                 CFC 
                 R-213 
                 1,1,1,3,3-Pentachloro-2,2,3- 
                 C 3 F 3 Cl 5   
                 2354-06-5 
               
               
                   
                   
                 trifluoropropane 
               
               
                 CFC 
                 R-214 
                 1,2,2,3-Tetrachloro-1,1,3,3- 
                 C 3 F 4 Cl 4   
                 2268-46-4 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 CFC 
                 R-215 
                 1,1,1-Trichloro-2,2,3,3,3- 
                 C 3 F 5 Cl 3   
                 4259-43-2 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 CFC 
                 R-216 
                 1,2-Dichloro-1,1,2,3,3,3- 
                 C 3 F 6 Cl 2   
                 661-97-2 
               
               
                   
                   
                 hexafluoropropane 
               
               
                 CFC 
                 R-216ca 
                 1,3-Dichloro-1,1,2,2,3,3- 
                 C 3 F 6 Cl 2   
                 662-01-1 
               
               
                   
                   
                 hexafluoropropane 
               
               
                 CFC 
                 R-217 
                 1-Chloro-1,1,2,2,3,3,3- 
                 C 3 F 7 Cl 
                 422-86-6 
               
               
                   
                   
                 heptafluoropropane 
               
               
                 CFC 
                 R-217ba 
                 2-Chloro-1,1,1,2,3,3,3- 
                 C 3 F 7 Cl 
                 76-18-6 
               
               
                   
                   
                 heptafluoropropane 
               
               
                 PFC 
                 R-218 
                 Octafluoropropane 
                 C 3 F 8   
                 76-19-7 
               
               
                 HCFC 
                 R-221 
                 1,1,1,2,2,3-Hexachloro-3- 
                 C 3 HFCl 6   
                 422-26-4 
               
               
                   
                   
                 fluoropropane 
               
               
                 HCFC 
                 R-222 
                 Pentachlorodifluoropropane 
                 C 3 HF 2 Cl 5   
                 134237-36-8 
               
               
                 HCFC 
                 R-222c 
                 1,1,1,3,3-Pentachloro-2,2- 
                 C 3 HF 2 Cl 5   
                 422-49-1 
               
               
                   
                   
                 difluoropropane 
               
               
                 HCFC 
                 R-223 
                 Tetrachlorotrifluoropropane 
                 C 3 HF 3 Cl 4   
                 134237-37-9 
               
               
                 HCFC 
                 R-223ca 
                 1,1,3,3-Tetrachloro-1,2,2- 
                 C 3 HF 3 Cl 4   
                 422-52-6 
               
               
                   
                   
                 trifluoropropane 
               
               
                 HCFC 
                 R-223cb 
                 1,1,1,3-Tetrachloro-2,2,3- 
                 C 3 HF 3 Cl 4   
                 422-50-4 
               
               
                   
                   
                 trifluoropropane 
               
               
                 HCFC 
                 R-224 
                 Trichlorotetrafluoropropane 
                 C 3 HF 4 Cl 3   
                 134237-38-0 
               
               
                 HCFC 
                 R-224ca 
                 1,3,3-Trichloro-1,1,2,2- 
                 C 3 HF 4 Cl 3   
                 422-54-8 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-224cb 
                 1,1,3-Trichloro-1,2,2,3- 
                 C 3 HF 4 Cl 3   
                 422-53-7 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-224cc 
                 1,1,1-Trichloro-2,2,3,3- 
                 C 3 HF 4 Cl 3   
                 422-51-5 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-225 
                 Dichloropentafluoropropane 
                 C 3 HF 5 Cl 2   
                 127564-92-5 
               
               
                 HCFC 
                 R-225aa 
                 2,2-Dichloro-1,1,1,3,3- 
                 C 3 HF 5 Cl 2   
                 128903-21-9 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225ba 
                 2,3-Dichloro-1,1,1,2,3- 
                 C 3 HF 5 Cl 2   
                 422-48-0 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225bb 
                 1,2-Dichloro-1,1,2,3,3- 
                 C 3 HF 5 Cl 2   
                 422-44-6 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225ca 
                 3,3-Dichloro-1,1,1,2,2- 
                 C 3 HF 5 Cl 2   
                 422-56-0 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225cb 
                 1,3-Dichloro-1,1,2,2,3- 
                 C 3 HF 5 Cl 2   
                 507-55-1 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225cc 
                 1,1-Dichloro-1,2,2,3,3- 
                 C 3 HF 5 Cl 2   
                 13474-88-9 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225da 
                 1,2-Dichloro-1,1,3,3,3- 
                 C 3 HF 5 Cl 2   
                 431-86-7 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225ea 
                 1,3-Dichloro-1,1,2,3,3- 
                 C 3 HF 5 Cl 2   
                 136013-79-1 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-225eb 
                 1,1-Dichloro-1,2,3,3,3- 
                 C 3 HF 5 Cl 2   
                 111512-56-2 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-226 
                 Chlorohexafluoropropane 
                 C 3 HF 6 Cl 
                 134308-72-8 
               
               
                 HCFC 
                 R-226ba 
                 2-Chloro-1,1,1,2,3,3- 
                 C 3 HF 6 Cl 
                 51346-64-6 
               
               
                   
                   
                 hexafluoropropane 
               
               
                 HCFC 
                 R-226ca 
                 3-Chloro-1,1,1,2,2,3- 
                 C 3 HF 6 Cl 
                 422-57-1 
               
               
                   
                   
                 hexafluoropropane 
               
               
                 HCFC 
                 R-226cb 
                 1-Chloro-1,1,2,2,3,3- 
                 C 3 HF 6 Cl 
                 422-55-9 
               
               
                   
                   
                 hexafluoropropane 
               
               
                 HCFC 
                 R-226da 
                 2-Chloro-1,1,1,3,3,3- 
                 C 3 HF 6 Cl 
                 431-87-8 
               
               
                   
                   
                 hexafluoropropane 
               
               
                 HCFC 
                 R-226ea 
                 1-Chloro-1,1,2,3,3,3- 
                 C 3 HF 6 Cl 
                 359-58-0 
               
               
                   
                   
                 hexafluoropropane 
               
               
                 HFC 
                 R-227ca 
                 1,1,2,2,3,3,3-Heptafluoropropane 
                 C 3 HF 7   
                 2252-84-8 
               
               
                 HFC 
                 R-227ca2 
                 Trifluoromethyl 1,1,2,2- 
                 C 3 HF 7 O 
                 2356-61-8 
               
               
                   
                   
                 tetrafluoroethyl ether 
               
               
                 HFC 
                 R-227ea 
                 1,1,1,2,3,3,3-Heptafluoropropane 
                 C 3 HF 7   
                 431-89-0 
               
               
                 HFC 
                 R-227me 
                 Trifluoromethyl 1,2,2,2- 
                 C 3 HF 7 O 
                 2356-62-9 
               
               
                   
                   
                 tetrafluoroethyl ether 
               
               
                 HCFC 
                 R-231 
                 Pentachlorofluoropropane 
                 C 3 H 2 FCl 5   
                 134190-48-0 
               
               
                 HCFC 
                 R-232 
                 Tetrachlorodifluoropropane 
                 C 3 H 2 F 2 Cl 4   
                 134237-39-1 
               
               
                 HCFC 
                 R-232ca 
                 1,1,3,3-Tetrachloro-2,2- 
                 C 3 H 2 F 2 Cl 4   
                 1112-14-7 
               
               
                   
                   
                 difluoropropane 
               
               
                 HCFC 
                 R-232cb 
                 1,1,1,3-Tetrachloro-2,2- 
                 C 3 H 2 F 2 Cl 4   
                 677-54-3 
               
               
                   
                   
                 difluoropropane 
               
               
                 HCFC 
                 R-233 
                 Trichlorotrifluoropropane 
                 C 3 H 2 F 3 Cl 3   
                 134237-40-4 
               
               
                 HCFC 
                 R-233ca 
                 1,1,3-Trichloro-2,2,3- 
                 C 3 H 2 F 3 Cl 3   
                 131221-36-8 
               
               
                   
                   
                 trifluoropropane 
               
               
                 HCFC 
                 R-233cb 
                 1,1,3-Trichloro-1,2,2- 
                 C 3 H 2 F 3 Cl 3   
                 421-99-8 
               
               
                   
                   
                 trifluoropropane 
               
               
                 HCFC 
                 R-233cc 
                 1,1,1-Trichloro-2,2,3- 
                 C 3 H 2 F 3 Cl 3   
                 131211-71-7 
               
               
                   
                   
                 trifluoropropane 
               
               
                 HCFC 
                 R-234 
                 Dichlorotetrafluoropropane 
                 C 3 H 2 F 4 Cl 2   
                 127564-83-4 
               
               
                 HCFC 
                 R-234aa 
                 2,2-Dichloro-1,1,3,3- 
                 C 3 H 2 F 4 Cl 2   
                 17705-30-5 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234ab 
                 2,2-Dichloro-1,1,1,3- 
                 C 3 H 2 F 4 Cl 2   
                 149329-24-8 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234ba 
                 1,2-Dichloro-1,2,3,3- 
                 C 3 H 2 F 4 Cl 2   
                 425-94-5 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234bb 
                 2,3-Dichloro-1,1,1,2- 
                 C 3 H 2 F 4 Cl 2   
                 149329-25-9 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234bc 
                 1,2-Dichloro-1,1,2,3- 
                 C 3 H 2 F 4 Cl 2   
                 149329-26-0 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234ca 
                 1,3-Dichloro-1,2,2,3- 
                 C 3 H 2 F 4 Cl 2   
                 70341-81-0 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234cb 
                 1,1-Dichloro-2,2,3,3- 
                 C 3 H 2 F 4 Cl 2   
                 4071-01-6 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234cc 
                 1,3-Dichloro-1,1,2,2- 
                 C 3 H 2 F 4 Cl 2   
                 422-00-5 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234cd 
                 1,1-Dichloro-1,2,2,3- 
                 C 3 H 2 F 4 Cl 2   
                 70192-63-1 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234da 
                 2,3-Dichloro-1,1,1,3- 
                 C 3 H 2 F 4 Cl 2   
                 146916-90-7 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234fa 
                 1,3-Dichloro-1,1,3,3- 
                 C 3 H 2 F 4 Cl 2   
                 76140-39-1 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-234fb 
                 1,1-Dichloro-1,3,3,3- 
                 C 3 H 2 F 4 Cl 2   
                 64712-27-2 
               
               
                   
                   
                 tetrafluoropropane 
               
               
                 HCFC 
                 R-235 
                 Chloropentafluoropropane 
                 C 3 H 2 F 5 Cl 
                 134237-41-5 
               
               
                 HCFC 
                 R-235ca 
                 1-Chloro-1,2,2,3,3- 
                 C 3 H 2 F 5 Cl 
                 28103-66-4 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-235cb 
                 3-Chloro-1,1,1,2,3- 
                 C 3 H 2 F 5 Cl 
                 422-02-6 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-235cc 
                 1-Chloro-1,1,2,2,3- 
                 C 3 H 2 F 5 Cl 
                 679-99-2 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-235da 
                 2-Chloro-1,1,1,3,3- 
                 C 3 H 2 F 5 Cl 
                 134251-06-2 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HCFC 
                 R-235fa 
                 1-Chloro-1,1,3,3,3- 
                 C 3 H 2 F 5 Cl 
                 677-55-4 
               
               
                   
                   
                 pentafluoropropane 
               
               
                 HFC 
                 R-236cb 
                 1,1,1,2,2,3-Hexafluoropropane 
                 C 3 H 2 F 6   
                 677-56-5 
               
               
                 HFC 
                 R-236ea 
                 1,1,1,2,3,3-Hexafluoropropane 
                 C 3 H 2 F 6   
                 431-63-0 
               
               
                 HFC 
                 R-236fa 
                 1,1,1,3,3,3-Hexafluoropropane 
                 C 3 H 2 F 6   
                 690-39-1 
               
               
                 HFC 
                 R-236me 
                 1,2,2,2-Tetrafluoroethyl 
                 C 3 H 2 F 6 O 
                 57041-67-5 
               
               
                   
                   
                 difluoromethyl ether 
               
               
                 HFC 
                 R-FE-36 
                 Hexafluoropropane 
                 C 3 H 2 F 6   
                 359-58-0 
               
               
                 HCFC 
                 R-241 
                 Tetrachlorofluoropropane 
                 C 3 H 3 FCl 4   
                 134190-49-1 
               
               
                 HCFC 
                 R-242 
                 Trichlorodifluoropropane 
                 C 3 H 3 F 2 Cl 3   
                 134237-42-6 
               
               
                 HCFC 
                 R-243 
                 Dichlorotrifluoropropane 
                 C 3 H 3 F 3 Cl 2   
                 134237-43-7 
               
               
                 HCFC 
                 R-243ca 
                 1,3-Dichloro-1,2,2-trifluoropropane 
                 C 3 H 3 F 3 Cl 2   
                 67406-68-2 
               
               
                 HCFC 
                 R-243cb 
                 1,1-Dichloro-2,2,3-trifluoropropane 
                 C 3 H 3 F 3 Cl 2   
                 70192-70-0 
               
               
                 HCFC 
                 R-243cc 
                 1,1-Dichloro-1,2,2-trifluoropropane 
                 C 3 H 3 F 3 Cl 2   
                 7125-99-7 
               
               
                 HCFC 
                 R-243da 
                 2,3-Dichloro-1,1,1-trifluoropropane 
                 C 3 H 3 F 3 Cl 2   
                 338-75-0 
               
               
                 HCFC 
                 R-243ea 
                 1,3-Dichloro-1,2,3-trifluoropropane 
                 C 3 H 3 F 3 Cl 2   
                 151771-08-3 
               
               
                 HCFC 
                 R-243ec 
                 1,3-Dichloro-1,1,2-trifluoropropane 
                 C 3 H 3 F 3 Cl 2   
                 149329-27-1 
               
               
                 HCFC 
                 R-244 
                 Chlorotetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 134190-50-4 
               
               
                 HCFC 
                 R-244ba 
                 2-Chloro-1,2,3,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
               
               
                 HCFC 
                 R-244bb 
                 2-Chloro-1,1,1,2-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 421-73-8 
               
               
                 HCFC 
                 R-244ca 
                 3-Chloro-1,1,2,2-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 679-85-6 
               
               
                 HCFC 
                 R-244cb 
                 1-Chloro-1,2,2,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 67406-66-0 
               
               
                 HCFC 
                 R-244cc 
                 1-Chloro-1,1,2,2-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 421-75-0 
               
               
                 HCFC 
                 R-244da 
                 2-Chloro-1,1,3,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 19041-02-2 
               
               
                 HCFC 
                 R-244db 
                 2-Chloro-1,1,1,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 117970-90-8 
               
               
                 HCFC 
                 R-244ea 
                 3-Chloro-1,1,2,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
               
               
                 HCFC 
                 R-244eb 
                 3-Chloro-1,1,1,2-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
               
               
                 HCFC 
                 R-244ec 
                 1-Chloro-1,1,2,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
               
               
                 HCFC 
                 R-244fa 
                 3-Chloro-1,1,1,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
               
               
                 HCFC 
                 R-244fb 
                 1-Chloro-1,1,3,3-tetrafluoropropane 
                 C 3 H 3 F 4 Cl 
                 2730-64-5 
               
               
                 HFC 
                 R-245ca 
                 1,1,2,2,3-Pentafluoropropane 
                 C 3 H 3 F 5   
                 679-86-7 
               
               
                 HFC 
                 R-245cb 
                 Pentafluoropropane 
                 C 3 H 3 F 5   
                 1814-88-6 
               
               
                 HFC 
                 R-245ea 
                 1,1,2,3,3-Pentafluoropropane 
                 C 3 H 3 F 5   
                 24270-66-4 
               
               
                 HFC 
                 R-245eb 
                 1,1,1,2,3-Pentafluoropropane 
                 C 3 H 3 F 5   
                 431-31-2 
               
               
                 HFC 
                 R-245fa 
                 1,1,1,3,3-Pentafluoropropane 
                 C 3 H 3 F 5   
                 460-73-1 
               
               
                 HFC 
                 R-245mc 
                 Methyl pentafluoroethyl ether 
                 C 3 H 3 F 5 O 
                 22410-44-2 
               
               
                 HFC 
                 R-245mf 
                 Difluoromethyl 2,2,2-trifluoroethyl 
                 C 3 H 3 F 5 O 
                 1885-48-9 
               
               
                   
                   
                 ether 
               
               
                 HFC 
                 R-245qc 
                 Difluoromethyl 1,1,2-trifluoroethyl 
                 C 3 H 3 F 5 O 
                 69948-24-9 
               
               
                   
                   
                 ether 
               
               
                 HCFC 
                 R-251 
                 Trichlorofluoropropane 
                 C 3 H 4 FCl 3   
                 134190-51-5 
               
               
                 HCFC 
                 R-252 
                 Dichlorodifluoropropane 
                 C 3 H 4 F 2 Cl 2   
                 134190-52-6 
               
               
                 HCFC 
                 R-252ca 
                 1,3-Dichloro-2,2-difluoropropane 
                 C 3 H 4 F 2 Cl 2   
                 1112-36-3 
               
               
                 HCFC 
                 R-252cb 
                 1,1-Dichloro-2,2-difluoropropane 
                 C 3 H 4 F 2 Cl 2   
                 1112-01-2 
               
               
                 HCFC 
                 R-252dc 
                 1,2-Dichloro-1,1-difluoropropane 
                 C 3 H 4 F 2 Cl 2   
               
               
                 HCFC 
                 R-252ec 
                 1,1-Dichloro-1,2-difluoropropane 
                 C 3 H 4 F 2 Cl 2   
               
               
                 HCFC 
                 R-253 
                 Chlorotrifluoropropane 
                 C 3 H 4 F 3 Cl 
                 134237-44-8 
               
               
                 HCFC 
                 R-253ba 
                 2-Chloro-1,2,3-trifluoropropane 
                 C 3 H 4 F 3 Cl 
               
               
                 HCFC 
                 R-253bb 
                 2-Chloro-1,1,2-trifluoropropane 
                 C 3 H 4 F 3 Cl 
               
               
                 HCFC 
                 R-253ca 
                 1-Chloro-2,2,3-trifluoropropane 
                 C 3 H 4 F 3 Cl 
                 56758-54-4 
               
               
                 HCFC 
                 R-253cb 
                 1-Chloro-1,2,2-trifluoropropane 
                 C 3 H 4 F 3 Cl 
                 70192-76-6 
               
               
                 HCFC 
                 R-253ea 
                 3-Chloro-1,1,2-trifluoropropane 
                 C 3 H 4 F 3 Cl 
               
               
                 HCFC 
                 R-253eb 
                 1-Chloro-1,2,3-trifluoropropane 
                 C 3 H 4 F 3 Cl 
               
               
                 HCFC 
                 R-253ec 
                 1-Chloro-1,1,2-trifluoropropane 
                 C 3 H 4 F 3 Cl 
               
               
                 HCFC 
                 R-253fa 
                 3-Chloro-1,3,3-trifluoropropane 
                 C 3 H 4 F 3 Cl 
               
               
                 HCFC 
                 R-253fb 
                 3-Chloro-1,1,1-trifluoropropane 
                 C 3 H 4 F 3 Cl 
                 460-35-5 
               
               
                 HCFC 
                 R-253fc 
                 1-Chloro-1,1,3-trifluoropropane 
                 C 3 H 4 F 3 Cl 
               
               
                 HFC 
                 R-254cb 
                 1,1,2,2-Tetrafluoropropane 
                 C 3 H 4 F 4   
                 40723-63-5 
               
               
                 HFC 
                 R-254pc 
                 Methyl 1,1,2,2-tetrafluoroethyl 
                 C 3 H 4 F 4 O 
                 425-88-7 
               
               
                   
                   
                 ether 
               
               
                 HCFC 
                 R-261 
                 Dichlorofluoropropane 
                 C 3 H 5 FCl 2   
                 134237-45-9 
               
               
                 HCFC 
                 R-261ba 
                 1,2-Dichloro-2-fluoropropane 
                 C 3 H 5 FCl 2   
                 420-97-3 
               
               
                 HCFC 
                 R-262 
                 Chlorodifluoropropane 
                 C 3 H 5 F 2 Cl 
                 134190-53-7 
               
               
                 HCFC 
                 R-262ca 
                 1-Chloro-2,2-difluoropropane 
                 C 3 H 5 F 2 Cl 
                 420-99-5 
               
               
                 HCFC 
                 R-262fa 
                 3-Chloro-1,1-difluoropropane 
                 C 3 H 5 F 2 Cl 
               
               
                 HCFC 
                 R-262fb 
                 1-Chloro-1,3-difluoropropane 
                 C 3 H 5 F 2 Cl 
               
               
                 HFC 
                 R-263 
                 Trifluoropropane 
                 C 3 H 5 F 3   
               
               
                 HCFC 
                 R-271 
                 Chlorofluoropropane 
                 C 3 H 6 FCl 
                 134190-54-8 
               
               
                 HCFC 
                 R-271b 
                 2-Chloro-2-fluoropropane 
                 C 3 H 6 FCl 
                 420-44-0 
               
               
                 HCFC 
                 R-271d 
                 2-Chloro-1-fluoropropane 
                 C 3 H 6 FCl 
               
               
                 HCFC 
                 R-271fb 
                 1-Chloro-1-fluoropropane 
                 C 3 H 6 FCl 
               
               
                 HFC 
                 R-272 
                 Difluoropropane 
                 C 3 H 6 F 2   
               
               
                 HFC 
                 R-281 
                 Fluoropropane 
                 C 3 H 7 F 
               
               
                 HC 
                 R-290 
                 Propane 
                 C 3 H 8  or CH 3 CH 2 CH 3   
                 74-98-6 
               
               
                 CFC 
                 R-C316 
                 Dichlorohexafluorocyclobutane 
                 C 4 Cl 2 F 6   
                 356-18-3 
               
               
                 CFC 
                 R-C317 
                 Chloroheptafluorocyclobutane 
                 C 4 ClF 7   
                 377-41-3 
               
               
                 PFC 
                 R-C318 
                 Octafluorocyclobutane 
                 C 4 F 8  or —(CF 2 ) 4 — 
                 115-25-3 
               
               
                   
                   
                 (Perfluorocyclobutane) 
               
               
                 PFC 
                 R-3-1-10 
                 Decafluorobutane (Perfluorobutane) 
                 C 4 F 10   
                 355-25-9 
               
               
                 HFC 
                 R-329ccb 
                 1,1,1,2,2,3,3,4,4-Nonafluorobutane 
                 C 4 HF 9   
                 375-17-7 
               
               
                 HFC 
                 R-338eea 
                 1,1,1,2,3,4,4,4-Octafluorobutane 
                 C 4 H 2 F 8   
                 75995-72-1 
               
               
                 HFC 
                 R-347ccd 
                 1,1,1,2,2,3,3-Heptafluorobutane 
                 C 4 H 3 F 7   
                 662-00-0 
               
               
                 HFC 
                 R-347mcc 
                 Perfluoropropyl methyl ether 
                 C 4 H 3 F 7 O 
                 375-03-1 
               
               
                 HFC 
                 R-347mmy 
                 Perfluoroisopropyl methyl ether 
                 C 4 H 3 F 7 O 
                 22052-84-2 
               
               
                 HFC 
                 R-365mfc 
                 1,1,1,3,3-Pentafluorobutane 
                 C 4 H 5 F 5   
                 406-58-6 
               
               
                 PFC 
                 R-4-1-12 
                 Dodecafluoropentane 
                 C 5 F 12   
                 678-26-2 
               
               
                   
                   
                 (Perfluoropentane) 
               
               
                 PFC 
                 R-5-1-14 
                 Tetradecafluorohexane 
                 C 6 F 14   
                 355-42-0 
               
               
                   
                   
                 (Perfluorohexane) 
               
               
                 CFC 
                 R-400 
                 R-12/114(50/50 wt %) OR 
                 50% CCl 2 F 2 •50% C 2 F 4 Cl 2  OR 
               
               
                   
                   
                 (60/40)(must be specified) 
                 60% CCl 2 F 2 •40% C 2 F 4 Cl 2   
               
               
                 HCFC 
                 R-401A 
                 R-22/152a/124 
                 53 ± 2% CHClF 2 •13 + 
                 MP-39 [6][19]   
               
               
                   
                   
                 (53 ± 2/13 + .5, −1.5/34 ± 1) 
                 .5, −1.5% C 2 H 4 F 2 •34 ± 1% C 2 HF 4 Cl 
               
               
                 HCFC 
                 R-401B 
                 R-22/152a/124 
                 61 ± 2% CHClF 2 •11 + 
                 MP-66 [6][19]   
               
               
                   
                   
                 (61 ± 2/11 + .5, −1.5/28 ± 1) 
                 .5, −1.5% C 2 H 4 F 2 •28 ± 1% C 2 HF 4 Cl 
               
               
                 HCFC 
                 R-401C 
                 R-22/152a/124 
                 33 ± 2% CHClF 2 •15 + 
                 MP-52 [19]   
               
               
                   
                   
                 (33 ± 2/15 + .5, −1.5/52 ± 1) 
                 .5, −1.5% C 2 H 4 F 2 •52 ± 1% C 2 HF 4 Cl 
               
               
                 HCFC 
                 R-402A 
                 R-125/290/22 
                 60 ± 2% C 2 HF 5 •2 ± 
                 HP-80 [6][19]   
               
               
                   
                   
                 (60 ± 2/2 ± 1/38 ± 2) 
                 1% C 3 H 8 •38 ± 2% CHClF 2   
               
               
                 HCFC 
                 R-402B 
                 R-125/290/22 
                 38 ± 2% C 2 HF 5 •2 ± 
                 HP-81 [6][19]   
               
               
                   
                   
                 (38 ± 2/2 ± 1/60 ± 2) 
                 1% C 3 H 8 •60 ± 2% CHClF 2   
               
               
                 HCFC 
                 R-403A 
                 R-290/22/218 
                 5 + .2, −2% C 3 H 8 •75 ± 
                 ISCEON 69-S [6]   
               
               
                   
                   
                 (5 + .2, −2/75 ± 2/20 ± 0) 
                 2% CHClF 2 •20 ± 0% C 3 F 8   
               
               
                 HCFC 
                 R-403B 
                 R-290/22/218 
                 5 + .2, −2% C 3 H 8 •56 ± 
                 ISCEON 69-L [6]   
               
               
                   
                   
                 (5 + .2, −2/56 ± 2/39 ± 0) 
                 2% CHClF 2 •39 ± 0% C 3 F 8   
               
               
                 HFC 
                 R-404A 
                 R-125/143a/134a 
                 44 ± 2% C 2 HF 5 •52 ± 
                 HP-62, [6][19]  FX- 
               
               
                   
                   
                 (44 ± 2/52 ± 1/4 ± 2) 
                 1% C 2 H 3 F 3 •4 ± 2% C 2 H 2 F 4   
                 70 [6][19]   
               
               
                 HCFC 
                 R-405A 
                 R-22/152a/142b/C318 
                 45 ± 0% CHClF 2 •7 ± 1% C 2 H 4 F 2 •5.5 ± 
                 GREENCOOL 
               
               
                   
                   
                 (45 ± 0/7 ± 1/5.5 ± 1/42.5 ± 2) 
                 1% C 2 H 3 F 2 Cl•42.5 ± 2% C 4 F 8   
                 G2015 [6]   
               
               
                 HCFC 
                 R-406A 
                 R-22/600a/142b 
                 55 ± 2% CHClF 2 •4 ± 
                 GHG [6][19]   
               
               
                   
                   
                 (55 ± 2/4 ± 1/41 ± 0) 
                 1% C 4 H 10 •41 ± 0% C 2 H 3 F 2 Cl 
               
               
                 HCFC 
                 R-406B 
                 R-22/600a/142b 
                 65 ± 2% CHClF 2 •4 ± 
                 GHG-HP [6]   
               
               
                   
                   
                 (65 ± 2/4 ± 1/31 ± 0) 
                 1% C 4 H 10 •31 ± 0% C 2 H 3 F 2 Cl 
               
               
                 HFC 
                 R-407A 
                 R-32/125/134a 
                 20 ± 2% CH 2 F 2 •40 ± 
                 Klea 60 [6][19]   
               
               
                   
                   
                 (20 ± 2/40 ± 2/40 ± 2) 
                 2% C 2 HF 5 •40 ± 2% C 2 H 2 F 4   
               
               
                 HFC 
                 R-407B 
                 R-32/125/134a 
                 10 ± 2% CH 2 F 2 •70 ± 
                 Klea 61 [6]   
               
               
                   
                   
                 (10 ± 2/70 ± 2/20 ± 2) 
                 2% C 2 HF 5 •20 ± 2% C 2 H 2 F 4   
               
               
                 HFC 
                 R-407C 
                 R-32/125/134a 
                 23 ± 2% CH 2 F 2 •25 ± 
                 Klea 66, [6]   
               
               
                   
                   
                 (23 ± 2/25 ± 2/52 ± 2) 
                 2% C 2 HF 5 •52 ± 2% C 2 H 2 F 4   
                 AC9000 [19]   
               
               
                 HFC 
                 R-407D 
                 R-32/125/134a 
                 15 ± 2% CH 2 F 2 •15 ± 
               
               
                   
                   
                 (15 ± 2/15 ± 2/70 ± 2) 
                 2% C 2 HF 5 •70 ± 2% C 2 H 2 F 4   
               
               
                 HFC 
                 R-407E 
                 R-32/125/134a 
                 25 ± 2% CH 2 F 2 •15 ± 
               
               
                   
                   
                 (25 ± 2/15 ± 2/60 ± 2) 
                 2% C 2 HF 5 •60 ± 2% C 2 H 2 F 4   
               
               
                 HFC 
                 R-407F 
                 R-32/125/134a 
                 30 ± 2% CH 2 F 2 •30 ± 
                 Genetron 
               
               
                   
                   
                 (30 ± 2/30 ± 2/40 ± 2) 
                 2% C 2 HF 5 •40 ± 2% C 2 H 2 F 4   
                 Performax LT [9]   
               
               
                 HCFC 
                 R-408A 
                 R-125/143a/22 
                 7 ± 2% C 2 HF 5 •46 ± 
                 FX-10 [6][19]   
               
               
                   
                   
                 (7 ± 2/46 ± 1/47 ± 2) 
                 1% C 2 H 3 F 3 •47 ± 2% CHClF 2   
               
               
                 HCFC 
                 R-409A 
                 R-22/124/142b 
                 60 ± 2% CHClF 2 •25 ± 
                 FX-56 [6][19]   
               
               
                   
                   
                 (60 ± 2/25 ± 2/15 ± 1) 
                 2% C 2 HF 4 Cl•15 ± 1% C 2 H 3 F 2 Cl 
               
               
                 HCFC 
                 R-409B 
                 R-22/124/142b 
                 65 ± 2% CHClF 2 •25 ± 
                 FX-57 [6]   
               
               
                   
                   
                 (65 ± 2/25 ± 2/10 ± 1) 
                 2% C 2 HF 4 Cl•10 ± 1% C 2 H 3 F 2 Cl 
               
               
                 HFC 
                 R-410A 
                 R-32/125 
                 50 + .5, −1.5% CH 2 F 2 •50 + 
                 AZ-20, [6]  Puron, [6]   
               
               
                   
                   
                 (50 + .5, −1.5/50 + 1.5, −.5) 
                 1.5, −.5% C 2 HF 5   
                 Suva 9100 [6]   
               
               
                 HFC 
                 R-410B 
                 R-32/125 
                 45 ± 1% CH 2 F 2 •55 ± 1% C 2 HF 5   
                 AC9100 [19]   
               
               
                   
                   
                 (45 ± 1/55 ± 1) 
               
               
                 HCFO 
                 R-411A 
                 R-1270/22/152a 
                 1.5 + 0, −1% C 3 H 6 •87.5 + 
                 GREENCOOL 
               
               
                   
                   
                 (1.5 + 0, −1/87.5 + 2, −0/11 + 0, −1) 
                 2, −0% CHClF 2 •11 + 0, −1% C 2 H 4 F 2   
                 G2018a [6]   
               
               
                 HCFO 
                 R-411B 
                 R-1270/22/152a 
                 3 + 0, −1% C 3 H 6 •94 + 
                 GREENCOOL 
               
               
                   
                   
                 (3 + 0, −1/94 + 2, −0/3 + 0, −1) 
                 2, −0% CHClF 2 •3 + 0, −1% C 2 H 4 F 2   
                 G2018b [6]   
               
               
                 HCFO 
                 R-411C 
                 R-1270/22/152a 
                 3 + 0, −1% C 3 H 6 •95.5 + 
                 GREENCOOL 
               
               
                   
                   
                 (3 + 0, −1/95.5 + 2, −0/1.5 + 0, −1) 
                 2, −0% CHClF 2 •1.5 + 0, −1% C 2 H 4 F 2   
                 G2018c [6]   
               
               
                 HCFC 
                 R-412A 
                 R-22/218/142b 
                 70 ± 2% CHClF 2 •5 ± 
                 Arcton TP5R [6]   
               
               
                   
                   
                 (70 ± 2/5 ± 2/25 ± 1) 
                 2% C 3 F 8 •25 ± 1% C 2 H 3 F 2 Cl 
               
               
                 HFC 
                 R-413A 
                 R-218/134a/600a 
                 9 ± 1% C 3 F 8 •88 ± 
                 ISCEON 49 [6]   
               
               
                   
                   
                 (9 ± 1/88 ± 2/3 + 0, −1) 
                 2% C 2 H 2 F 4 •3 + 0, −1% C 4 H 10   
               
               
                 HCFC 
                 R-414A 
                 R-22/124/600a/142b 
                 51 ± 2% CHClF 2 •28.5 ± 
                 GHG-X4, [6]   
               
               
                   
                   
                 (51 ± 2/28.5 ± 2/4 ± .5/16.5 + .5, −1) 
                 2% C 2 HF 4 Cl•4 ± .5% C 4 H 10 •16.5 + 
                 Autofrost, [6]  Chill- 
               
               
                   
                   
                   
                 .5, −1% C 2 H 3 F 2 Cl 
                 It [6]   
               
               
                 HCFC 
                 R-414B 
                 R-22/124/600a/142b 
                 50 ± 2% CHClF 2 •39 ± 
                 Hot Shot, [6][19]  Kar 
               
               
                   
                   
                 (50 ± 2/39 ± 2/1.5 ± .5/9.5 + .5, −1) 
                 2% C 2 HF 4 Cl•1.5 ± .5% C 4 H 10 •9.5 + 
                 Kool [6]   
               
               
                   
                   
                   
                 .5, −1% C 2 H 3 F 2 Cl 
               
               
                 HCFC 
                 R-415A 
                 R-22/152a (82 ± 1/18 ± 1) 
                 82 ± 1% CHClF 2 •18 ± 1% C 2 H 4 F 2   
               
               
                 HCFC 
                 R-415B 
                 R-22/152a (25 ± 1/75 ± 1) 
                 25 ± 1% CHClF 2 •75 ± 1% C 2 H 4 F 2   
               
               
                 HCFC 
                 R-416A 
                 R-134a/124/600 
                 59 + .5, −1% C 2 H 2 F 4 •39.5 + 
                 FRIGC (FR-12) [6]   
               
               
                   
                   
                 (59 + .5, −1/39.5 + 1, −.5/1.5 + 1 , −.2) 
                 1, −.5% C 2 HF 4 Cl•1.5 + .1, −.2% C 4 H 10   
               
               
                 HFC 
                 R-417A 
                 R-125/134a/600 
                 46.6 ± 1.1% C 2 HF 5 •50 ± 
                 ISCEON 59, [6]   
               
               
                   
                   
                 (46.6 ± 1.1/50 ± 1/3.4 + .1, −.4) 
                 1% C 2 H 2 F 4 •3.4 + .1, −.4% C 4 H 10   
                 NU-22 [6]   
               
               
                 HFC 
                 R-417B 
                 R-125/134a/600 
                 79 ± 1% C 2 HF 5 •18.3 ± 
               
               
                   
                   
                 (79 ± 1/18.3 ± 1/2.7 + .1, −.5) 
                 1% C 2 H 2 F 4 •2.7 + 1, −.5% C 4 H 10   
               
               
                 HCFC 
                 R-418A 
                 R-290/22/152a 
                 1.5 ± .5% C 3 H 8 •96 ± 
               
               
                   
                   
                 (1.5 ± .5/96 ± 1/2.5 ± .5) 
                 1% CHClF 2 •2.5 ± .5% C 2 H 4 F 2   
               
               
                 HFC 
                 R-419A 
                 R-125/134a/E170 
                 77 ± 1% C 2 HF 5 •19 ± 
               
               
                   
                   
                 (77 ± 1/19 ± 1/4 ± 1) 
                 1% C 2 H 2 F 4 •4 ± 1% C 2 H 6 O 
               
               
                 HCFC 
                 R-420A 
                 R-134a/142b 
                 88 + 1, −0% C 2 H 2 F 4 •12 + 
                 Choice 
               
               
                   
                   
                 (88 + 1, −0/12 + 0, −1) 
                 0, −1% C 2 H 3 F 2 Cl 
                 Refrigerant [19]   
               
               
                 HFC 
                 R-421A 
                 R-125/134a (58 ± 1/42 ± 1) 
                 58 ± 1% C 2 HF 5 •42 ± 1% C 2 H 2 F 4   
                 Choice R421 A [19]   
               
               
                 HFC 
                 R-421B 
                 R-125/134a (85 ± 1/15 ± 1) 
                 85 ± 1% C 2 HF 5 •15 ± 1% C 2 H 2 F 4   
                 Choice 421B [19]   
               
               
                 HFC 
                 R-422A 
                 R-125/134a/600a 
                 85.1 ± 1% C 2 HF 5 •11.5 ± 
                 ISCEON 79 [19]   
               
               
                   
                   
                 (85.1 ± 1/11.5 ± 1/3.4 + .1, −.4) 
                 1% C 2 H 2 F 4 •3.4 + .1, −.4% C 4 H 10   
               
               
                 HFC 
                 R-422B 
                 R-125/134a/600a 
                 55 ± 1% C 2 HF 5 •42 ± 
                 ICOR XAC1 [19]   
               
               
                   
                   
                 (55 ± 1 /42 ± 1/3 + .1, −.5) 
                 1% C 2 H 2 F 4 •3 + .1, −.5% C 4 H 10   
               
               
                 HFC 
                 R-422C 
                 R-125/134a/600a 
                 82 ± 1% C 2 HF 5 •15 ± 
                 ICOR XLT1 [19]   
               
               
                   
                   
                 (82 ± 1/15 ± 1/3 + .1, −.5) 
                 1% C 2 H 2 F 4 •3 + .1, −.5% C 4 H 10   
               
               
                 HFC 
                 R-422D 
                 R-125/134a/600a 
                 65.1 + .9, −1.1% C 2 HF 5 •31.5 ± 
                 ISCEON MO29 [19]   
               
               
                   
                   
                 (65.1 + .9, −1.1/31.5 ± 1/3.4 + .1, −.4) 
                 1% C 2 H 2 F 4 •3.4 + .1, −.4% C 4 H 10   
               
               
                 HFC 
                 R-423A 
                 R-134a/227ea (52.5 ± 1/47.5 ± 1) 
                 52.5 ± 1% C 2 H 2 F 4 •47.5 ± 1% C 3 HF 7   
               
               
                 HFC 
                 R-424A 
                 R-125/134a/600a/600/601a 
                 50.5 ± 1% C 2 HF 5 •47 ± 
                 RS-44 (new 
               
               
                   
                   
                 (50.5 ± 1/47 ± 1/.9 + .1, −.2/ 
                 1% C 2 H 2 F 4 •1.9 + .3, −.1% C 4 H 10 •.6 + 
                 comp.) [19]   
               
               
                   
                   
                 1 + .1, + .2/.6 + .1, −.2) 
                 .1, −.2% C 5 H 12   
               
               
                 HFC 
                 R-425A 
                 R-32/134a/227ea 
                 18.5 ± .5% CH 2 F 2 •69.5 ± 
               
               
                   
                   
                 (18.5 ± .5/69.5 ± .5/12 ± .5) 
                 .5% C 2 H 2 F 4 •12 ± .5% C 3 HF 7   
               
               
                 HFC 
                 R-426A 
                 R-125/134a/600/601a 
                 5.1 ± 1% C 2 HF 5 •93 ± 
                 RS-24 (new 
               
               
                   
                   
                 (5.1 ± 1/93 ± 1/1.3 + .1, −.2/.6 + .1, −.2) 
                 1% C 2 H 2 F 4 •1.3 + .1, −.2% C 4 H 10 •.6 + 
                 comp.) [19]   
               
               
                   
                   
                   
                 .1, −.2% C 5 H 12   
               
               
                 HFC 
                 R-427A 
                 R-32/125/143a/134a 
                 15 ± 2% CH 2 F 2 •25 ± 
                 Forane 427A [19]   
               
               
                   
                   
                 (15 ± 2/25 ± 2/10 ± 2/50 ± 2) 
                 2% C 2 HF 5 •10 ± 2% C 2 H 3 F 3 •50 ± 2% C 2 H 2 F 4   
               
               
                 HFC 
                 R-428A 
                 R-125/143a/290/600a 
                 77.5 ± 1% C 2 HF 5 •20 ± 
                 RS-52 [19]   
               
               
                   
                   
                 (77.5 ± 1/20 ± 1/.6 + .1, −.2/1.9 + .1, −.2) 
                 1% C 2 H 3 F 3 •.6 + .1, −.2% C 3 H 8 •1.9 + 
               
               
                   
                   
                   
                 .1, −.2% C 4 H 10   
               
               
                 HFC 
                 R-429A 
                 R-E170/152a/600a 
                 60 ± 1% C 2 H 6 O•10 ± 
               
               
                   
                   
                 (60 ± 1/10 ± 1/30 ± 1) 
                 1% C 2 H 4 F 2 •30 ± 1% C 4 H 10   
               
               
                 HFC 
                 R-430A 
                 R-152a/600a (76 ± 1/24 ± 1) 
                 76 ± 1% C 2 H 4 F 2 •24 ± 1% C 4 H 10   
               
               
                 HFC 
                 R-431A 
                 R-290/152a (71 ± 1/29 ± 1) 
                 71 ± 1% C 3 H 8 •29 ± 1% C 2 H 4 F 2   
               
               
                 HO 
                 R-432A 
                 R-1270/E170 (80 ± 1/20 ± 1) 
                 80 ± 1% C 3 H 6 •20 ± 1% C 2 H 6 O 
               
               
                 HO 
                 R-433A 
                 R-1270/290 (30 ± 1/70 ± 1) 
                 30 ± 1% C 3 H 6 •70 ± 1% C 3 H 8   
               
               
                 HO 
                 R-433B 
                 R-1270/290 (5 ± 1/95 ± 1) 
                 5 ± 1% C 3 H 6 •95 ± 1% C 3 H 8   
               
               
                 HO 
                 R-433C 
                 R-1270/290 (25 ± 1/75 ± 1) 
                 25 ± 1% C 3 H 6 •75 ± 1% C 3 H 8   
               
               
                 HFC 
                 R-434A 
                 R-125/143a/134a/600a 
                 63.2 ± 1% C 2 HF 5 •18 ± 
                 RS-45 [19]   
               
               
                   
                   
                 (63.2 ± 1/18 ± 1/16 ± 1/2.8 + .1, −.2) 
                 1% C 2 H 3 F 3 •16 ± 1% C 2 H 2 F 4 •2.8 + 
               
               
                   
                   
                   
                 .1, −.2% C 4 H 10   
               
               
                 HFC 
                 R-435A 
                 R-E170/152a (80 ± 1/20 ± 1) 
                 80 ± 1% C 2 H 6 O•20 ± 1% C 2 H 4 F 2   
               
               
                 HC 
                 R-436A 
                 R-290/600a (56 ± 1/44 ± 1) 
                 56 ± 1% C 3 H 8 •44 ± 1% C 4 H 10   
               
               
                 HC 
                 R-436B 
                 R-290/600a (52 ± 1/48 ± 1) 
                 52 ± 1% C 3 H 8 •48 ± 1% C 4 H 10   
               
               
                 HFC 
                 R-437A 
                 R-125/134a/600/601 
                 19.5 + .5, −1.8% C 2 HF 5 •78.5 + 
               
               
                   
                   
                 (19.5 + .5, −1.8/78.5 + 1.5, −.7/ 
                 1.5, −.7% C 2 H 2 F 4 •1.4 + 
               
               
                   
                   
                 1.4 + .1, −.2/.6 + .1, −.2) 
                 .1, −.2% C 4 H 10 •.6 + .1, −.2% C 5 H 12   
               
               
                 HFC 
                 R-438A 
                 R-32/125/134a/600/601a 
                 8.5 + .5, −1.5% CH 2 F 2 •45 ± 
                 KDD5, [19]   
               
               
                   
                   
                 (8.5 + .5, −1.5/45 ± 1.5/44.2 ± 
                 1.5% C 2 HF 5 •44.2 ± 1.5% C 2 H 2 F 4 •1.7 + 
                 ISCEON MO99 [19]   
               
               
                   
                   
                 1.5/1.7 + .1, −.2/.6 + .1, −.2) 
                 .1, −.2% C 4 H 10 •.6 + .1, −.2% C 5 H 12   
               
               
                 HFC 
                 R-439A 
                 R-32/125/600a 
                 50 ± 1% CH 2 F 2 •47 ± 
               
               
                   
                   
                 (50 ± 1/47 ± 1/3 ± .5) 
                 1% C 2 HF 5 •3 ± .5% C 4 H 10   
               
               
                 HFC 
                 R-440A 
                 R-290/134a/152a 
                 .6 ± .1% C 3 H 8 •1.6 ± 
               
               
                   
                   
                 (.6 ± .1/1.6 ± .6/97.8 ± .5) 
                 .6% C 2 H 2 F 4 •97.8 ± .5% C 2 H 4 F 2   
               
               
                 HC 
                 R-441A 
                 R-170/290/600a/600 
                 3.1 ± .3% C 2 H 6 •54.8 ± 
                 HCR-188C [19]   
               
               
                   
                   
                 (3.1 ± .3/54.8 ± 2/6 ± .6/36.1 ± 2) 
                 2% C 3 H 8 •42.1 ± 2.6% C 4 H 10   
               
               
                 HCFC 
                 R-500 
                 R-12/152a (73.8/26.2) 
                 73.8% CCl 2 F 2 •26.2% C 2 H 4 F 2   
                 Carrene #7 [6]   
               
               
                 HCFC 
                 R-501 
                 R-22/12 (75/25) 
                 75% CHClF 2 •25% CCl 2 F 2   
               
               
                 HCFC 
                 R-502 
                 R-22/115 (48.8/51.2) 
                 48.8% CHClF 2 •51.2% C 2 F 5 Cl 
               
               
                 HCFC 
                 R-503 
                 R-23/13 (40.1/59.9) 
                 40.1% CHF 3 •59.9% CClF 3   
               
               
                 HCFC 
                 R-504 
                 R-32/115 (48.2/51.8) 
                 48.2% CH 2 F 2 •51.8% C 2 F 5 Cl 
               
               
                 HCFC 
                 R-505 
                 R-12/31 (78/22) 
                 78% CCl 2 F 2 •22% CH 2 FCl 
               
               
                 HCFC 
                 R-506 
                 R-31/114 (55.1/44.9) 
                 55.1% CH 2 FCl•44.9% C 2 F 4 Cl 2   
               
               
                 HFC 
                 R-507[A] 
                 R-125/143a (50/50) 
                 50% C 2 HF 5 •50% C 2 H 3 F 3   
                 AZ-50 [6][19]   
               
               
                 HFC 
                 R-508[A] 
                 R-23/116 (39/61) 
                 39% CHF 3 •61% C 2 F 6   
                 Klea 5R3 [6][19]   
               
               
                 HFC 
                 R-508B 
                 R-23/116 (46/54) 
                 46% CHF 3 •54% C 2 F 6   
                 Suva 95 [6][19]   
               
               
                 HCFC 
                 R-509[A] 
                 R-22/218 (44/56) 
                 44% CHClF 2 •56% C 3 F 8   
                 Arcton TP5R2 [6]   
               
               
                 HC 
                 R-510[A] 
                 R-E170/600a (88 ± .5/12 ± .5) 
                 88 ± .5% C 2 H 6 O•12 ± .5% C 4 H 10   
               
               
                 HC 
                 R-511[A] 
                 R-290/E170 (95 ± 1/5 ± 1) 
                 95 ± 1% C 3 H 8 •5 ± 1% C 2 H 6 O 
               
               
                 HC 
                 R-600 
                 Butane 
                 C 4 H 10  or CH 3 CH 2 CH 2 CH 3   
                 106-97-8 
               
               
                 HC 
                 R-600a 
                 Isobutane 
                 C 4 H 10  or CH(CH 3 ) 2 CH 3   
                 75-28-5 
               
               
                 HC 
                 R-601 
                 Pentane 
                 C 5 H 12  or CH 3 CH 2 CH 2 CH 2 CH 3   
                 109-66-0 
               
               
                 HC 
                 R-601a 
                 Isopentane 
                 C 5 H 12  or (CH 3 ) 2 CHCH 2 CH 3   
                 78-78-4 
               
               
                 HC 
                 R-610 
                 Ethoxyethane (Diethyl ether) 
                 CH 3 CH 2 OCH 2 CH 3   
                 60-29-7 
               
               
                 HC 
                 R-611 
                 Methyl formate 
                 HCOOCH 3   
                 107-31-3 
               
               
                   
                 R-630 
                 Methylamine 
                 CH 3 NH 2   
                 74-89-5 
               
               
                   
                 R-631 
                 Ethylamine 
                 CH 3 CH 2 (NH 2 ) 
                 75-04-7 
               
               
                   
                 R-702 
                 Hydrogen 
                 H 2   
                 1333-74-0 
               
               
                   
                 R-704 
                 Helium 
                 He 
                 7440-59-7 
               
               
                   
                 R-717 
                 Ammonia 
                 NH 3   
                 7664-41-7 
               
               
                   
                 R-718 
                 Water/Steam 
                 H 2 O 
                 7732-18-5 
               
               
                   
                 R-720 
                 Neon 
                 Ne 
                 7440-01-9 
               
               
                   
                 R-728 
                 Nitrogen 
                 N 2   
                 7727-37-9 
               
               
                   
                 R-729 
                 Air N 2 /O 2 /Ar 
                 78.082% N 2 •20.945% O 2 •.934% Ar 
               
               
                   
                   
                 (78.082/20.945/.934 vol %) 
               
               
                   
                 R-732 
                 Oxygen 
                 O 2   
                 7782-44-7 
               
               
                   
                 R-740 
                 Argon 
                 Ar 
                 7440-37-1 
               
               
                   
                 R-744 
                 Carbon dioxide 
                 CO 2   
                 124-38-9 
               
               
                   
                 R-744A 
                 Nitrous oxide 
                 N 2 O 
                 10024-97-2 
               
               
                   
                 R-764 
                 Sulfur dioxide 
                 SO 2   
                 7446-09-5 
               
               
                   
                 R-784 
                 Krypton 
                 Kr 
                 7439-90-9 
               
               
                 CFO 
                 R-1112a 
                 1,1-Dichloro-2,2-difluoroethylene 
                 C 2 Cl 2 F 2   
                 79-35-6 
               
               
                 CFO 
                 R-1113 
                 Chlorotrifluoroethylene 
                 C 2 ClF 3   
                 79-38-9 
               
               
                 PFO 
                 R-1114 
                 Tetrafluoroethylene 
                 C 2 F 4   
                 116-14-3 
               
               
                 HCO 
                 R-1120 
                 Trichloroethylene (trielene) 
                 C 2 HCl 3   
                 79-01-6 
               
               
                 HCO 
                 R-1130 
                 cis-1,2-Dichloroethylene 
                 C 2 H 2 Cl 2   
                 156-59-2 
               
               
                 HFO 
                 R-1132a 
                 1,1-Difluoroethylene 
                 C 2 H 2 F 2   
                 75-38-7 
               
               
                 HCO 
                 R-1140 
                 Chloroethylene (vinyl chloride) 
                 C 2 H 3 Cl 
                 75-01-4 
               
               
                 HFO 
                 R-1141 
                 Fluoroethylene (vinyl fluoride) 
                 C 2 H 3 F 
                 75-02-5 
               
               
                 HO 
                 R-1150 
                 Ethene (Ethylene) 
                 CH 2 ═CH 2   
                 74-85-1 
               
               
                 PFO 
                 R-1216 
                 Hexafluoropropylene 
                 C 3 F 6   
                 116-15-4 
               
               
                 PFO 
                 R-1218 
                 Hexafluoropropene trimer 
                 (C 3 F 6 ) 3   
                 6792-31-0 
               
               
                 HCFO 
                 R-1233zd 
                 1-Chloro-3,3,3-trifluoropropene 
                 C 3 H 2 ClF 3   
                 2730-43-0 
               
               
                 HFO 
                 R-1234yf 
                 2,3,3,3-Tetrafluoropropene 
                 C 3 H 2 F 4   
                 754-12-1 
               
               
                 HFO 
                 R-1234ze 
                 1,3,3,3-Tetrafluoropropene 
                 C 3 H 2 F 4   
                 1645-83-6 
               
               
                 HO 
                 R-1270 
                 Propene (Propylene) 
                 C 3 H 6  or CH 3 CH═CH 2   
                 115-07-1 
               
               
                   
               
            
           
           
               
            
               
                 [1] Composition of Refrigerant Blends, www.epa.gov/ozone/snap/refrigerants/refblend.html 
               
               
                 [2] Andy&#39;s HVAC/R Web Page, users.isp.com/aschoen/refchart.pdf 
               
            
           
           
               
               
               
               
            
               
                   
                 Type 
                 Meaning 
                 Atoms in the Molecule 
               
               
                   
                   
               
               
                   
                 CFC 
                 Chlorofluorocarbon 
                 Cl, F, C 
               
               
                   
                 CFO 
                 Chlorofluoroolefin 
               
               
                   
                 HCFC 
                 Hydrochlorofluorocarbon 
                 H, Cl, F, C 
               
               
                   
                 HCFO 
                 Hydrochlorofluoroolefin 
               
               
                   
                 HFC 
                 Hydrofluorocarbon 
                 H, F, C 
               
               
                   
                 HFO 
                 Hydrofluoroolefin 
               
               
                   
                 HCC 
                 Hydrochlorocarbon 
                 H, Cl, C 
               
               
                   
                 HCO 
                 Hydrochloroolefin 
               
               
                   
                 HC 
                 Hydrocarbon 
                 H, C 
               
               
                   
                 HO 
                 Hydroolefin (Alkene) 
               
               
                   
                 PFC 
                 Perfluorocarbon 
                 F, C 
               
               
                   
                 PFO 
                 Perfluoroolefin 
               
               
                   
                 PCC 
                 Perchlorocarbon 
                 Cl, C 
               
               
                   
                 PCO 
                 Perchloroolefin 
               
               
                   
                 H 
                 Halon/Haloalkane 
                 Br, Cl (in some but not all), F, 
               
               
                   
                   
                   
                 H (in some but not all), C