© Eswatini Standards Authority 202 3 
 All rights reserved   
 
 
 PRD/SZNS 073: 202 3  
  
ICS 91.010.20                                  Edition 1  
   
    
    
 
 
 
 
 
 
 
   
  
 ESWATINI NATIONAL STANDARD  
   
    
 
    
   
Specifications for Refrigerants for  Reclaim Processes   
    
   
  
      
    
    
    
    
   
  
Published by: Eswatini Standards Authority  
Marble Construction Building, Plot 247 11th Street King Mswati III Avenue West  
P. O. Box 1399, Matsapha, Kingdom of Eswatini   
Telephone: +268 2518 4633, Facsimile: +268 2518 4526   
Website: www.swasa.co.sz   
E-mail: info@swasa.co.sz    
©Eswatini Standards Authority 202 3  
 
 
 PRD/ SZNS  073: 202 3 
 Edition 1  
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© Eswatini Standards Authority 202 3   
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 PRD/ SZNS  073: 2023 
Edition 1  
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© Eswatini Standards Authority 202 3   
All rights reserved   
  Table of changes  
Clause Changed   Date  Change   
      
 
NATIONAL FOREWORD  
This Eswatini National Final draft Standard was prepared by Technical Committee SWASA/TC 19 Gas and 
Gas Appliances  in accordance with procedures of the Eswatini Standards Authority, in compliance with 
Annex 3 of the WTO/TBT Agreement.  
  
  
  
  
     PRD/ SZNS  073: 202 3 
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© Eswatini Standards Authority 202 3   
All rights reserved  Table o f Contents  
0 Introduction  ................................ ................................ ................................ ............................  6 
1 Scope  ................................ ................................ ................................ ................................ ...... 8 
2 Normative References  ................................ ................................ ................................ ............  9 
3 Term s and definitions  ................................ ................................ ................................ ...........  10 
3.1 Definitions  ................................ ................................ ................................ ......................  10 
3.2 Abbreviations  ................................ ................................ ................................ .................  10 
4 Characterization of Refrigerants and Contaminants  ................................ .............................  10 
5 Sampling and Summary of Test Procedures Quality documentation and document ation 
control  ................................ ................................ ................................ ................................ ...........  12 
6 Reporting Procedure  ................................ ................................ ................................ .............  17 
6.1.1  Reporting Procedure  ................................ ................................ ...............................  17 
7 Conformance Conditions  ................................ ................................ ................................ ...... 17 
7.1 Conformance.  ................................ ................................ ................................ .................  17 
8 APPENDIX A.  REFERENCES – INFORMATIVE  ................................ ...........................  42 
9 Appendix B.  Analytical Procedures for AHRI Standard 700 - Normative  .........................  42 
10 Appendix C.  Gas Chromatograms for AHRI Standard 700 - Informative  ..........................  42 
11 Bibliography  ................................ ................................ ................................ .........................  43 
 
TABLES   
Table 1A. Single Component Fluorocarbon Refrigerants Characteristics and  Allowable Levels of 
Contaminants  .................................................................... ............................ .................................. ............. 7  
Table 1B. Single Component Hydrocarbon Refrigerants Characteristics and  Allowable Levels of 
Contaminants  ..................................................................... ............................... .................................. ....... 10  
Table 1C. Carbon Dioxide Refrigerant Characteristics and  Allowable Levels of Contaminants  
...................................................................................... .......... .......................................................... ........... 11  
Table 2A. Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of 
Contaminants  ................................................................ .................................... ................................... ...... 12  
Table 2B.  Hydrocarbon Blends (400 & 500 Series Refrigerants) Characteristics and  Allowable  
Levels of Contaminants  ..................................................................................................... ...................... .. 22  
Table 3. Azeotropic Blends (500 Series Refrigerants) Characteristics and Allowable Levels of 
Contaminants  ………………………………………………………………………………… …..……… 23  
APPENDICES  
Appendix A. References - Informative ............................................................. ........ ................................. 25  
Appendix B. Analytical Procedures for AHRI Sta ndard 700 - Normative ................................................ 26  
 Appendix C. Gas Chromatograms for AHRI Standard 700 - Informative ............................... ........ .........27  
 
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  PRD/ SZNS  073: 202 3 
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All rights reserved  0 Introduction   
0.1 Purpose.   The purpose of this standard is to establish purity specifications, to verify composition, 
and to specify the associated methods of testing for acceptability of the refrigerants listed in Section 
2.1 regardless of source (new, reclaimed and/or repackaged ) for use in new and existing refrigeration 
and air -conditioning products within the scope of AHRI.    
0.2 Intent.   This standard is intended for the guidance of the industry including manufacturers, 
reclaimers, repackagers, distributors, installers, servicemen, contractors and users of fluorocarbon, 
hydrocarbon and carbon dioxide containing refrigerants.     
0.3 Review and Amendment. This standard is subject to review and amendment as technology 
advances or as additional data becomes available.  This data can be submitted to AHRI for review.  
0.4 The Reclaimed Refrigerant and Refrigerant Testing Laboratory Certificati on Programs are based 
on this standard.  The Reclaimed Refrigerant Certification Program includes purity specifications for 
reclaimed refrigerants. The Refrigerant Testing Laboratory Certification Program includes 
verification for refrigerant testing labor atories that perform testing of refrigerants to AHRI Standard 
700.  
0.5 Certified Ratings.  
The following ratings are verified by test for the Reclaimed Refrigerant Certification Program:  
a. Water (ppm by weight)  
b. Chloride (pass/fail)  
c. Acidity (ppm by weight)   
d. High boiling residue (% by volume or % by weight)  
e. Particulates/solids (pass/fail)  
f. Air and other non -condensables (% by volume)  
g. All other volatile impurities (% by weight)  
  
 
 
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All rights reserved  The following contaminants are verified by test for the Refrigerant Testin g Laboratory Certification 
Program:  
a. Water (ppm by weight)  
b. High boiling residue (% by volume or % by weight)  
c. Air and other non -condensables (% by volume)    
d. All other volatile impurities (% by weight)  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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All rights reserved  Specifications for Refrigerants  for Reclaim Processes  
 
1 Scope   
This standard specifies acceptable levels of contaminants (purity requirements) for fluorocarbon, 
hydrocarbon, and carbon dioxide refrigerants regardless of source and lists acceptable test methods.  
These refrig erants are  as referenced in the ANSI/ASHRAE Standard 34 with Addenda:      
1.1.1 Single -Component Fluorocarbon Refrigerants: R -11; R -12; R -13; R -22; R -23; R -32; R -113; R -
114;  R -115; R -116; R -123; R -124; R -125; R -134a; R -141b; R -142b; R -143a; R -152a; R -218; R -
227ea; R -236fa; R -245fa; R -1233zd(E); R -1234yf; R -1234ze(E); and R -1336mzz(Z ).  
1.1.2 Single Component Hydrocarbon Refrigerants: R -50; R -170; R -E170; R -290; R -600; R -600a; 
R-601; R -601a; R -610; R -1150; and R -1270.  
1.1.3 Carbon Dioxide Refrigerant: R -744.  
1.1.4 Zeotropic Blend Refrigerants: R -401A; R -401B; R -402A; R -402B; R -403A;  R-403B; R -404A; 
R-405A;  R -406A; R -407A; R -407B; R -407C; R -407D; R -407E; R -407F; R -407G; R407H ; R-408A; 
R-409A; R -409B; R -410A; R -410B; R -411A; R -411B; R -412A; R -413A; R -414A; R -414B; R -
415A; R -415B; R -416A; R -417A; R -417B; R -417C; R -418A; R -419A; R -419B;  R-420A; R -421A; 
R-421B; R -422A; R -422B; R -422C; R -422D; R -422E; R -423A; R -424A; R -425A; R -426A; R -427A; 
R-428A; R -429A; R -430A; R -431A; R -434A; R -435A;  R -437A; R -438A; R -439A; R -440A; R -
442A; R -444A; R -444B; R -445A; R -446A; R -447A; R -447B; R -448A; R -449A ; R-449B; R -449C; 
R-450A; R -451A; R -451B; R -452A; R -452B; R -452C; R -453A; R -454A; R -454B;  R -454C; R -
455A; R -456A; R -457A; R -458A; R -459A; R -459B; R -460A; R -460B; R-461A ; and R -462A   
1.1.5 Zeotropic Hydrocarbon Blend Refrigerants: R -432A; R -433A; R -433B; R -433C; R -436A; R -
436B; R -441A; and R -443A.  
1.1.6 Azeotropic Blend Refrigerants:  R -500; R -502; R -503; R -507A; R -508A; R -508B; R -509A; R -
510A; R -511A; R -512A; R -513A; R -513B; R-514A ; R-515A ; and R -516A.   
   
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All rights reserved  2 Normative References   
The following referenced documents are indispensable for the application of this document.   Listed 
here are all standards, handbooks, and other publications essential to the formation and 
implementation of the standard.  All references in this appendix are considered as part of th is standard.  
2.1 2008 Appendix C  Analytical Procedures for AHRI Standard 700 -2015 - Normative, Specification 
for Fluorocarbon Refrigerants, 2008, Air -Conditioning, Heating, and Refrigeration Institute, 2111 
Wilson Blvd., Suite 500, Arlington, VA  22201, U.S.A.  
2.2 ANSI/ASHRAE Standard 34 -2016, Designation and Safety Classification of Refrigerants, 2016, 
with Addenda, American National Standar ds Institute/American Society of Heating, Refrigerating 
and Air -Conditioning Engineers, Inc., 25 West 43rd Street, 4th Floor, New York, New York 10036 
U.S.A., 1791 Tullie Circle N.E., Atlanta, GA 30329, U.S.A.  
2.3 ASHRAE  Terminology,  https://www.ashrae.or g/resources --publications/free -resources/ashrae -
terminology, 2017, American Society of Heating, Refrigerating and Air -Conditioning Engineers, 
Inc., 1791 Tullie Circle, N.E., Atlanta, GA 30329, U.S.A.  
2.4 ASTM Standard D1296 -01-2012, Standard Test Method f or Odor of Volatile Solvents and 
Diluents , 2012, ASTM International, 100 Barr Harbor Drive, West Conshohocken, Pennsylvania 
19428, USA.  
2.5 GPA STD -2177, A nalysis of Natural Gas Liquid Mixtures Containing Nitrogen and Carbon 
Dioxide by Gas Chromatography , 2013, Gas Processors Association, 6526 East 60th Street, Tulsa, 
Oklahoma 74145, U.S.A.    
2.6 REFPROP Reference Fluid Thermodynamic and Transport Properties NIST Standard Reference 
Database 23  Version 9.1 , 2013, U.S. Department of Commerce, Technology Adm inistration, 
National Institute of Standards and Technology, Standard Reference Data Program, Gaithersburg, 
Maryland 20899, U.S.A.  
 
 
 
 
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All rights reserved  3 Terms and Definitions   
For the purpose of this standard the following definitions and abbreviations apply.   
3.1 Definitions   
All terms in this document will follow the standard industry definitions in the ASHRAE Terminology  
website ( https://www.ashrae.org/resources --publications/free -resources/ashrae -terminology ) unless 
otherwise defined in this section.  
3.2 Abbreviations   
   
AHRI  – Airconditioning, Heating and Refrigeration Institute  
PPM – parts per million  
4 Characterization of Refrigerants and Contaminants   
4.1 Characterizati on 
Characterization of single component fluorocarbon (Table 1A) and zeotropic/azeotropic blend (Table 
2A/3) refrigerants and contaminants are listed in the following general classifications:  
4.1.1  Isomer content (see Table 1A)  
4.1.2  Air and other non -condensables (see Tables 1A, 2A, 3)  
4.1.3 Water (see Tables 1A, 2A, 3)  
4.1.4  All other volatile impurities (see Tables 1A, 2A, 3)  
4.1.5  High boiling residue (see Tables 1A, 2A, 3)  
4.1.6  Particulates/solids (see Tables 1A, 2A, 3)  
4.1.7  Acidity (see Tables 1A, 2A, 3)  
4.1.8 Chloride (see Tables 1A, 2A, 3)  
 
 
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All rights reserved  4.2 Hydrocarbon Characterization  
Characterization of hydrocarbon refrigerants (Tables 1B and 2B) and contaminants are listed in the 
following general classifications:  
4.2.1  Nomina l composition (see Tables 1B, 2B)  
4.2.2  Other allowable impurities (see Table 1B)  
4.2.3  Air and other non -condensables (see Tables 1B, 2B)  
4.2.4  Sulfur odor (see Tables 1B, 2B)  
4.2.5  High boiling residue (see Tables 1B, 2B)   
4.2.6  Particulates/solids (see Tables 1B, 2B)  
4.2.7  Acidity (see Tables 1B, 2B)  
4.2.8  Water (see Tables 1B, 2B)  
4.2.9  All other volatile impurities (see Tables 1B, 2B)  
4.2.10  Total C 3, C4 and C 5 polyolefins (see Tables 1B, 2B)  
4.2.11 Chloride (see Table 2B)   
4.3 Carbon Dioxide Characterization  
Characterization of carbon dioxide (Table 1C) and its contaminants are listed in the following general 
classifications:  
4.3.1  Purity (see Table 1C)  
4.3.2  Air and other non -condensables (see Table 1C)  
4.3.3  Water (see Table 1C)  
4.3.4  High boiling residue (see Table 1C)  
4.3.5  Particulates/solids (see Table 1C)  
 PRD/ SZNS  073: 202 3 
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All rights reserved  5 Sampling and Summary of Test Procedures Quality documentation 
and documentation control   
5.1 Referee Test.  
The referee test methods for the various contaminants are summarized i n the following paragraphs.  
Detailed test procedures are included in Appendix C to  AHRI Standard 700.  If alternative test 
methods are employed, the user shall be able to demonstrate that they produce results at least 
equivalent to the specified referee t est method.   
5.2 Refrigerant Sampling  
5.2.1 Sampling Precautions  
Special precautions should be taken to ensure that representative samples are obtained for analysis.  
Sampling shall be done by qualified personnel following accepted sampling and safety procedures.  
Refrigerants with critical temperatures near or below ambient temperature cannot be reliably sampled 
for both liquid and vapor phase without special handling.   
Note: Flammable refrigerants which are ASHRAE 34 Class 2L, 2 or 3 present additional safety chal lenges and require 
additional measures for sampling safety procedures compared to non -flammable halocarbons documented in this 
standard.   
5.2.2 Cylinder Preparation  
Place a clean, empty sample cylinder with the valve open in an oven at 110
 C for one hour.  Remove 
it from the oven while hot, immediately connect it to an evacuation system and evacuate it to less 
than 56 kPa.  Close the valve and allow it to cool.  Weigh the empty cylinder.   
5.2.3 Vapor Phase Sampling.  
A vapor phase sample shall be obtained for determining the non -condensables.  The source 
temperature shall be measured and recorded at the time the sample is taken.   
5.2.3.1 Special Handling for Low Critical Temperature Refrigerant  
A vapor phase sample is required to determine non -condensables and volatile impurities, including 
other refrigerants. The vapor phase sample is obtained by regulating the sample container temperature 
to 5 K or more above the refrigerant critical temperatur e.   
 
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All rights reserved  5.2.3.2 Handling for Liquid Refrigerants with Boiling Points Near or Above Room Temperature  
Since R -11, R -113, R -123, R -141b, R -245fa, and R -1233zd(E) have normal boiling points near or 
above room temperature, non -condensable determination is not re quired for these refrigerants.   
Note: Non -condensable gases, if present, will concentrate in the vapor phase of the refrigerant; care must be exercised to 
eliminate introduction of either air or liquid phase refrigerant during the sample transfer .  
5.2.4 Liquid  Phase Sampling  
A liquid phase sample is required for all tests listed in this standard except the test for non -
condensables.  
5.2.4.1 Liquid Sampling.  
Accurate analysis requires that the sample cylinder, at ambient temperature, be filled to at least 60% 
by volume; however, under no circumstances should the cylinder be filled to more than 80% by 
volume.  This can be accomplished by weighing the empty cyli nder and then the cylinder with 
refrigerant.  When the desired amount of refrigerant has been collected, close the valve(s) and 
immediately disconnect the sample cylinder.   
Note  1:  Care should be taken to ensure that all connections and transfer lines ar e dry and evacuated to avoid contaminating 
the sample.   
Note  2: Low critical temperature refrigerants can have extremely high pressure and the sampling vessel, all connections 
and transfer lines must be designed to handle high pressures.   
5.2.4.2 Special  Handling for Low Critical Temperature Refrigerant  
A liquid phase sample is required for all testing except volatile impurities, including other 
refrigerants.  The liquid phase sample is obtained by regulating the sample cylinder temperature to 
2ºC below the critical temperature of the refrigerant.   
Note:  If free water is present in the sample, cooling to below 0ºC may result in the formation of ice.  Clathrates may form 
at temperatures above 0ºC with some fluorocarbon refrigerants.   
5.2.4.3 Record Weig ht   
Check the sample cylinder for leaks and record the gross weight.  
5.3 Refrigerant Identification  
The required method shall be gas chromatography as described in Appendix C with the corresponding 
gas chromatogram figures as illustrated in Informative Appe ndix D.  The chromatogram of the sample 
shall be compared to known standards.   PRD/ SZNS  073: 202 3 
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All rights reserved  5.4 Water Content   
5.4.1 Method  
The Coulometric Karl Fischer Titration, as described in Appendix C, shall be used for determining 
the water content of refrigerants.  This method can be used for refrigerants that are either a liquid or 
a gas at room temperature.  For all refrigerants, the sample for water analysis shall be taken from the 
liquid phase of the container to be tested.   
5.4.2 Limits  
The value for water content shall be expressed in  parts per million (ppm) by weight and shall not 
exceed the maximum specified in Tables 1A, 1B, 1C, 2A, 2B and 3.  
5.5 Conductivity  
(Alternative to chloride and acidity tests).   
5.5.1 Method  
A refrigerant may be tested for conductivity as an indication of the presence of acids, metal chlorides, 
and any compound that ionizes in water.  This alternative procedure is intended for use with new or 
reclaimed refrigerants;  however, significant amount s of oil can interfere with the test results.    
5.5.2 Limits   
The value for conductivity shall be converted to and expressed in ppm by weight calculated as HCl 
and shall be compared with the maximum acidity value specified (see in Tables 1A, 1B, 1C, 2A, 2B, 
and 3).  If the conductivity is above this amount, then the chloride and acidity tests shall be conducted.  
If the conductivity is not greater than this amount, then the chloride and acidity tests may be omitted.   
5.6 Chloride   
5.6.1 Method   
The refrigerant shall be tested for chloride as an indication of the presence of hydrochloric acid and/or 
metal chlorides.  The referee procedure is intended for use with new or reclaimed halogenated 
refrigerants; however, high boiling residue in excess of the amounts in Tables 1A , 1B, 1C, 2A, 2B 
and 3 can interfere with the test results.   
The test method shall be that described in Appendix C . The test will show noticeable turbidity at 
chloride levels of about 3 ppm or greater by weight.  PRD/ SZNS  073: 2023 
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All rights reserved  5.6.2 Limits   
The results of the test shall not exhibit any sign of turbidity.  Report the results as “pass” or “fail.”   
5.7 Acidity   
5.7.1 Method  
The acidity test uses the titration principle to detect any compound that is soluble in water and ionizes 
as an acid.  The test method shall be that described in Appendix C . This test may not be suitable for 
determination of high molecular weight organic acids; however, these acids will be found in the high 
boiling residue test outlined in Section 5.8.  The test requires a 50 to 60-gram  sample and has a 
detection limit of 0.1 ppm by weight calculated as HCl.  
5.7.2 Limits   
The value for acidity shall be expressed in ppm by weight as HCl and shall not exceed the limits in 
Tables 1A, 1B, 2A, 2B and 3.  
5.8 High Boiling Residue   
5.8.1 Method  
High boiling  residue shall be determined by either volume or weight. The volume method measures 
the residue from a standard volume of refrigerant after evaporation. The gravimetric method is 
described in Appendix C.  Oils and/or organic acids will be captured by these  methods.   
5.8.2 Limits.   
The value for high boiling residue shall be expressed as a percentage by volume or weight and shall 
not exceed the maximum percent specified in Tables 1A, 1B, 1C, 2A, 2B and 3.  
5.9 Particulates and Solids   
5.9.1 Method  
A measured amount of sa mple shall be placed in a Goetz bulb under controlled temperature 
conditions.  The particulates/solids shall be determined by visual examination of the Goetz bulb prior 
to the evaporation of refrigerant.  For details of this test method, refer to Part 3 of  Appendix C.  
Note: R -744 will partially sublimate when measuring a known amount of liquid sample into the Goetz bulb and the solid 
R-744 will interfere with the visual examination of particulates/solids. Determining the particulates/solids shall be 
comple ted by visual examination of the Goetz bulb after the evaporation of the refrigerant.   PRD/ SZNS  073: 202 3 
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All rights reserved  5.9.2 Limits  
Visual presence of dirt, rust or other particulate contamination is reported as “fail.”   
5.10 Non-condensables   
5.10.1  Method   
A vapor phase sample shall be used for determ ination of non -condensables. Non -condensable gases 
consist primarily of air accumulated in the vapor phase of refrigerants where the solubility of air in 
the refrigerant liquid phase is extremely low and air is not significant as a liquid phase contaminant . 
The presence of non -condensable gases may reflect poor quality control in transferring refrigerants 
to storage tanks and cylinders.  
The test method shall be gas chromatography with a thermal conductivity detector as described in 
Appendix C.  
5.10.2  Limits   
The maximum level of non -condensables in the vapor phase of a test sample shall not exceed the 
maximum at 25.0 °C as shown in Tables 1A, 1B, 1C, 2A, 2B and 3.  
5.11 All Other Volatile Impurities and/or Other Refrigerants  
5.11.1  Method   
The amount of volatile impurit ies including other refrigerants in the subject refrigerant shall be 
determined by gas chromatography as described in Appendix C .  
  
5.11.2  Limits  
The test sample shall not contain more than 0.5% by weight of volatile impurities including other 
refrigerants and unsaturates.  
5.11.2.1 Individual Listed Volatile Impurities  
Tables 1A, 1B, 1C, 2A, 2B and 3 list specific volatile impurities and their maximum allowable 
concentrations in percent (%) by weight.  
5.11.2.2 R -40 Impurities    
Refrigerant shall contain no mo re than 300 ppm of R -40.   PRD/ SZNS  073: 2023 
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All rights reserved  5.12 Total C 3, C 4 and C 5 Polyolefins in Hydrocarbon Refrigerants.  
5.12.1  Method.   
The amount of polyolefin impurities in the hydrocarbon shall be determined by gas chromatography 
as described in GPA STD 2177 - Natural Gas Liquid Mixtures C ontaining Nitrogen and Carbon 
Dioxide .    
5.12.2  Limits   
The test sample shall not contain more than 0.05 % by weight in the hydrocarbon sample as shown 
in Tables 1B and 2B. Report the results as “pass” or “fail.”  
5.13 Sulfur Odour  in Hydrocarbon Refrigerants.  
5.13.1  Method.  
The amount of sulfur containing compounds or other compounds with an odour  shall be determined 
by ASTM method D1296, Odour  of Volatile Solvents and Diluents.   
5.13.2  Limits.  
The test sample paper shall not emit a residual sulfur odour  as shown in Table s 1B and 2B.   
6 Reporting Procedure    
6.1.1 Reporting Procedure    
The source (manufacturer, reclaimer or repackager) of the packaged refrigerant shall be identified.  
The refrigerant shall be identified by its accepted refrigerant number and/or its chemical name.  
Maximum allowable levels of contaminants are shown in Tables 1A, 1B, 1C, 2A, 2B and 3.  Test 
results shall be tabulated in a similar manner.   
7 Conformance Conditions  
7.1 Conformance  
While conformance with this standard is voluntary, conformance shall not be claimed or implied for 
products or equipment within the standard's Purpose  and Scope  unless such product claims meet all 
of the requirements of the standard and all of the testing and rating requirements are measured and 
reported in complete compliance wit h the standard.  Any product that has not met all the requirements 
of the standard cannot reference, state, or acknowledge conformance to the standard in any written, 
oral, or electronic communication.     
 
© Eswatini Standards Authority 202 3 
 All rights reserved   
  
    Table 1A.  Single Component Fluorocarbon Refrigerants Characteristics and Allowable Levels of Contaminants  
  
Ta  Reporting Units  Reference 
Section  R-11 R-12 R-13 R-22 R-23 R-32 R-113 R-114 R-115 R-116 
CHARACTERISTICS   :             
Boiling  Point  1 ºC @ 101.3 kPa  N/A 23.7 -29.8 -81.5 -40.8 -82 -51.7 47.6 3.6 -38.9 -78.2 
Boiling Point Range   1 K N/A ± 0.3 ± 0.3 ± 0.5 ± 0.3 ± 0.5 ± 0.3 ± 0.3 ± 0.3 ± 0.3 ± 0.3 
Critical Temperature1 
ble 1A Page 8  ºC N/A 198 112 28.9 96.2 26.1 78.1 214.1 145.7 80 19.9 
Isomer Content  
Isomer  
  % by weight  N/A N/A N/A N/A   N/A N/A N/A 0-1 
R-133a 0-30 
R-144a N/A N/A  
VAPOR  PHASE  
CONTAMINANTS   :             
Air and Other Non - 
condensables, 
Maximum   % by volume @  
25.0ºC  5.10 N/A2 1.5 1.5 1.5 1.5 1.5 N/A2 1.5 1.5 1.5 
LIQUID PHASE  
CONTAMINANTS:               
Water, Maximum   ppm by weight  5.4 20 10 10 10 10 10 20 10 10 10 
  
All Other Volatile 
Impurities,  
Maximum   % by weight  5.11 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 
High Boiling Residue,   
Maximum   % by 
volume 
or % by 
weight  5.8 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 
 
Particulates/Solids  
  Pass or Fail  5.9 Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean   Visually 
clean 
Acidity, Maximum   
  ppm by 
weight (as 
HCl) 5.7 1 1 1 1 1 1 1 1 1 1 
Chloride   3 Pass or Fail  5.6 No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  Visually 
clean   Visually 
clean PRD/ SZNS  073: 2023 
Edition 1  
19 
© Eswatini Standards Authority 202 3   
All rights reserved   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 Notes:   
1. Boiling points, boiling point ranges and critical temperatures, although not required, are provided for informational purpose s. Refrigerant data compiled from Ref  prop 9.1.  
2. Since R -11, R-113, R -123, R -141b, R -245fa, R -1233zd(E), and R -1336mzz(Z) have normal boiling points near or above room temperature, non -condensable determinations are not required for these  
refrigerants .  
3. Recognized chloride level for pass/fail is about 3 ppm.   
N/A Not Applicable  
Table 1A.  Single Component Fluorocarbon Refrigerants Characteristics and Allowable Levels of  Contaminants (continued)   
  
 Reporting 
Units Reference 
Section  R-236fa  R-245fa R-1233zd(E)  R-1234yf  R-1234ze(E)  R- 
1336mzz(Z)  PRD/ SZNS  073: 202 3 
 Edition 1  
20 
© Eswatini Standards Authority 202 3   
All rights reserved   
Table 1B. Single Component  Hydrocarbon Refrigerants Characteristics and Allowable Levels of Contaminants     Table 1A.  Single Component Fluorocarbon Refrigerants Characteristics and Allowable Levels of Contaminants (continued)  
 Reporting 
Units   Reference 
Section  R-123 R-124 R-125 R-134a R-141b R-142b R-143a R-152a R-218 R-227ea 
Tab 1A Page Table 1B 
Pag 
CHARACTERISTICS : e     
        
Boiling Point1 ºC @ 
101.3 kPa  N/A 27.8 -12 
-48.1 
Table  -26.1 
C 
Page 11  32 -9.2 -47.2 -24 -36.8 -16.5 
Boiling Point Range1 K N/A ± 0.3 ± 0.3 ± 0.3  ± 0.3 ± 0.3 -- ± 0.3 ± 0.3 ± 0.3 -- 
Critical Temperature1 ºC N/A 183.7 122.3 66  101.1 206.8 137.1 72.7 113.3 72 101.7 
Isomer Content Isomer  % by weight  N/A 0-8 
R-123a+  
R-123b 0-5 
R-124a N/A  0-0.5  R-134 
  0-0.1ea 
R-141, 
R-141a 0-0.1ea 
R-142, 
R-142a 0-0.01 
R-143 N/A -- -- 
VAPOR 
PHASECONTAMINANTS :        
        
Air and Other Non -
condensables, Maximum  % by 
volume @  
25.0ºC  5.10 N/A2 1.5 1.5    1.5 N/A2 2 1.5 1.5 1.5 1.5 
LIQUID PHASE 
CONTAMINANTS:         
        
Water, Maximum  ppm by 
weight  5.4 20 10 10    10 100 15 10 10 10 10 
All Other Volatile  
Impurities, Maximum  % by weight  5.11 0.5 0.5 0.5   
   0.5 0.9 0.5 0.5 0.5 0.5 0.5 
High Boiling Residue,  
Maximum  % by 
volume or 
% by 
weight  5.8 0.01 0.01 0.01   
 0.01 0.01 0.01 0.01 0.01 0.01 0.01 
Particulates/Solids  Pass or 
Fail 5.9 Visually 
clean Visually 
clean Visually 
clean Visually  
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean 
Acidity, Maximum  ppm by 
weight 
(as 
HCl) 5.7 1 1 1    1 
  1 3 1 1 1 1 
Chloride3 Pass or 
Fail 5.6 No visible 
turbidity  No visible 
turbidity  No visible 
turbidity   No 
visible  
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  CHARACTERISTICS :          
Boiling Point 1 ºC @ 
101.3 
kPa N/A   
-1.4  14.9 18.3 -29.4 -19 33.4 
Boiling Point Range1 K N/A ± 0.3  ± 0.3  -- N/A N/A N/A 
Critical Temperature1 ºC N/A 124.9  154.1 165.6 94.8 109.4 171.3 
Isomer Content Isomer  % by 
weight  N/A   
  
 --   
  0-0.1ea 
R-245ca, 
R-245cb,  
R-245ea,  
R-245eb   -- N/A 0.3 R - 
1234ze(Z)  0 - 0.1 
R1336mzz(E)  
VAPOR PHASE CONTAMINANTS :     
       
Air and Other Non -condensables,  
Maximum  % by 
volume @ 
25.0ºC  5.10 1.5  
  N/A2 N/A2 1.5 1.5 N/A2 
LIQUID PHASE CONTAMINANTS:           
Water, Maximum  ppm by  
weight  5.4  10   
  20 20 10 10 20 
All Other Volatile Impurities,  
Maximum  % by 
weight  5.11 0.5  0.5 0.5 0.5 0.5 0.5 
High Boiling Residue, Maximum  % by volume 
or % by 
weight  5.8   
0.01  
  0.01 0.01 0.01 0.01 0.01 
Particulates/Solids  Pass or 
Fail 5.9 Visually  
clean  Visually 
clean Visually 
clean Visually 
clean Visually 
clean Visually 
clean 
Acidity, Maximum  ppm by 
weight  
(as HCl)  5.7   
 1   
  1 1 1 1 1 
Chloride3 Pass or 
Fail 5.6 No  
  
visible 
turbidity   No visible 
turbidity  No visible 
turbidity  No 
visible 
turbidity  No visible 
turbidity  No visible 
turbidity  
1 PRD/ SZNS  073: 2023 
Edition 1  
21 
© Eswatini Standards Authority 202 3   
All rights reserved   Reportin
g Units  R-50 R-170 R-E170 R-290 R-600  
  R-600a R-601 R-601a R-610 R-1150 R-1270 
CHARACTERISTI
CS:              
Boiling Point1 ºC at 
101.
3 
kPa -161.5 -88.6 -24.8 -42.1  -0.5 -11.8 36.1 27.8 34.6 -103.8 -47.6 
Boiling Point 
Range1 K ± 0.5 ± 0.5 ± 0.5 ± 0.5   ± 
0.5 ± 0.5 ± 0.5 ± 0.5 ± 0.5 ± 0.5 ± 0.5 
Minimum Nominal 
Composition  % weight  99.5 99.5 99.5 99.5  99.5 
  99.5 99.5 99.5 99.5 99.5 99.5 
Other Allowable 
Impurities  % weight  N/A N/A N/A 22  22 22 0-1 
R-601a 0-1 
R-601 N/A N/A 0-1 
R-290 
VAPOR PHASE 3:        
        
Air and Other Non -
condensables,  
Maximum  % by 
volume 
@  
25.0ºC  1.5 1.5 1.5 1.5   
 1.5 1.5 1.5 1.5 1.5 1.5 1.5 
LIQUID PHASE 4:        
        Notes:    
1. Boiling points, boiling point ranges and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Ref  prop 9.1. 
2. Since R -11, R -113, R -123, R -141b, R -245fa, R -1233zd(E), and R -1336mzz(Z) have normal boiling points near or above room t emperature, non -condensable determinations are not required for  these  
refrigerants.  
3. Recognized chloride level for pass/fail is about 3 ppm.  
 N/A Not Applicable  
Notes:    
1. Boiling points, boiling point ranges and critical temperatures, although not required, are provided for informational purpose s. Refrigerant data compiled from Ref  prop 9.1.   
2. Since R -11, R -113, R -123, R -141b, R -245fa, R -1233zd(E), and R -1336mzz(Z) have normal boiling points near or above room temperature, non  condensable determinations are 
not required for these refrigerants.   
3. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable   
 -- Data Not Available  
 
 PRD/ SZNS  073: 202 3 
 Edition 1  
22 
© Eswatini Standards Authority 202 3   
All rights reserved  Sulfur Odor  Pass or 
Fail No sulfur 
odor No sulfur 
odor No sulfur 
odor No sulfur 
odor No sulfur  
odor No sulfur 
odor No sulfur 
odor No sulfur 
odor No sulfur 
odor No sulfur 
odor No sulfur 
odor 
High Boiling 
Residue,  
Maximum  % weight  0.01 0.01 0.01 0.01   
0.01 0.01 0.01 0.01 0.01 0.01 0.01 
Particulates/Solids  Pass or 
Fail Visual
ly 
clean Visual
ly 
clean Visual
ly 
clean Visual
ly 
clean Visual
ly   
clean Visual
ly 
clean Visual
ly 
clean Visual
ly 
clean Visual
ly 
clean Visual
ly 
clean Visual
ly 
clean 
Acidity, Maximum  ppm 
by 
weig
ht 
(as HCl)  1 1 1 1   
 1 
  1 1 1 1 1 1 
Water, Maximum  mg kg-1 10 10 10 10  10 10 10 10 10 10 10 
All Other Volatile  
Impurities, 
Maximum  % weight  0.5 0.5 0.5 0.5  0.5 0.5 0.5 0.5 0.5 0.5 0.5 
Total C 3, C4 and C 5  
Polyolefins, 
Maximum  % weight  0.05 0.05 0.05 0.05   
0.05 0.05 0.05 0.05 0.05 0.05 0.05 
Notes:  
1. Boiling points, boiling point ranges, although not required, are provided for informational purposes.  
2. 2% of other C3 and C4 saturated hydrocarbons are allowed    
3.Taken from vapor phase    
4. Vaporized from liquid phase    
N/A Not Applicable      
 
  
 
 
 
 
 
  
Table 1C. Carbon Dioxide Refrigerant Characteristics and Allowable Levels of Contaminants  
 Reporting Units  R-744 
CHARACTERISTICS:    
Sublimation Point1 ºC at 101.3 kPa  -78.4 
Sublimation Point Range1 K  ± 0.3 PRD/ SZNS  073: 2023 
Edition 1  
23 
© Eswatini Standards Authority 202 3   
All rights reserved  VAPOR PHASE 2:   
Air and other non -condensables,  
Maximum  % by volume at 10ºC below the critical temperature and 
measure non -condensable  
directly  1.5 
LIQUID PHASE 3:   
Water, Maximum  ppm by weight  10 
High Boiling Residue,  
Maximum  % by weight  0.0005  
Particulates/Solids  Pass or Fail  Visually clean  
Minimum Purity  % by weight  99.9 
   
Notes:  
1. Sublimation point, sublimation point range, although not required, are provided for informational purposes. Refrigerant data compiled from Ref  prop 9.1.  
2. Sample taken from vapor phase.  
3. Sample vaporized from liquid phase.  
  
Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants    
   Reporting 
Units  Reference 
Section  R-401A  R-401B  R-402A  R-402B  R-403A  R-403B  R-404A  R-405A  R-406A  R-407A  
CHARACTERISTICS :                                      
Refrigerant 
Components  N/A  N/A  R-22/ 
152a/124  R-22/ 
152a/124  R-125/  
290/22  R-125/  
290/22  R-290/  
22/218  R-290/  
22/218  R-125/ 
143a/134a  R-
22/152a/ 
142b/C318  R-22/ 
600a/142b  R-32/ 
125/134a  
Nominal 
Composition  % by 
weight  N/A  53.0/13.0/  
34.0  61.0/11.0/  
28.0  60.0/2.0/  
38.0  38.0/2.0/  
60.0  5.0/75.0/  
20.0  5.0/56.0/  
39.0  44.0/52.0/  
4.0  45.0/7.0/  
5.5/42.5  55.0/4.0/  
41.0  20.0/40.0/  
40.0  
Allowable 
Composition  % by 
weight  N/A  51.0-55.0/  
11.5-13.5/  
33.0-35.0  59.0-63.0/  
9.5-11.5/  
27.0-29.0  58.0-62.0/  
1.0-2.1/  
36.0-40.0  36.0-40.0/  
1.0-2.1/  
58.0-62.0  3.0-5.2/  
73.0-77.0/  
18.0-22.0  3.0-5.2/  
54.0-58.0/  
37.0-41.0  42.0-46.0/  
51.0-53.0/  
2.0-6.0  43.0-47.0/  
6.0-8.0/  
4.5-6.5/  
40.5-44.5  53.0-57.0/  
3.0-5.0/  
40.0-42.0  18.0-22.0/  
38.0-42.0/  
38.0-42.0  
Bubble Point1  ºC @ 
101.3 kPa  N/A  -33.3  -34.9  -49  -47  -47.8  -49.2  -46.2  -32.9  -32.7  -45.3  
Dew Point1  ºC @ 
101.3 kPa  N/A  -26.4  -28.8  -46.9  -44.7  -44.3  -46.8  -45.5  -24.5  -23.5  -38.9  
Critical Temperature1  ºC  N/A  105.3  103.5  76  83  87  79.7  72.1  106  116.5  82.3  
VAPOR PHASE 
CONTAMINANTS :                                      PRD/ SZNS  073: 202 3 
 Edition 1  
24 
© Eswatini Standards Authority 202 3   
All rights reserved  Chloride2  
 Pass or Fail  5.6  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No 
visible 
turbidity  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable    
 
  
 
 
 
 
 
 
Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)      
   R-409A  R-409B  R-407B  R-407C  R-407D  R-407E  R-407F  R-407G  R-407H   R-408A  R-409A  R-409B  Air and Other Non -
condensables, 
Maximum  % by 
volume 
@  
25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                                      
Water, Maximum  ppm by  
weight  5.4  10  10  10  10  10  10  10  10  10  10  
All Other Volatile  
Impurities, Maximum  % by 
weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling 
Residue, Maximum  % by 
volume 
or  
% by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or Fail  5.9  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  
Acidity, Maximum  ppm by 
weight  
(as HC1)  5.7  1  1  1  1  1  1  1  1  1  1  PRD/ SZNS  073: 2023 
Edition 1  
25 
© Eswatini Standards Authority 202 3   
All rights reserved  CHARACTERISTICS :                                      
Refrigerant 
Components  R-22/ 
124/142b  R-22/ 
124/142b  R-32/ 
125/134a  R-32/ 
125/134a  R-32/ 
125/134a  R-32/ 
125/134a  R-32/ 
125/134a  R-32/ 
125/134a   R-32/ 125/134a  R-125/ 
143a/22  R-22/ 
124/142b  R-22/ 
124/142b  
Nominal Composition  60.0/25.0/  
15.0  65.0/25.0/  
10.0  10.0/70.0/  
20.0  23.0/25.0/  
52.0  15.0/15.0/  
70.0  25.0/15.0/  
60.0  30.0/30.0/  
40.0  2.5/2.5/95.0    32.5/15.0/52.5   7.0/46.0/  
47.0  60.0/25.0/  
15.0  65.0/25.0/  
10.0  
Allowable 
Composition  58.0-62.0/  
23.0-27.0/  
14.0-16.0  63.0-67.0/  
23.0-27.0/  
9.0-11.0  8.0-12.0/  
68.0-72.0/  
18.0-22.0  21.0-25.0/  
23.0-27.0/  
50.0-54.0  13.0-17.0/  
13.0-17.0/  
68.0-72.0  23.0-27.0/  
13.0-17.0/  
58.0-62.0  28.0-32.0/  
28.0-32.0/  
38.0-42.0  2.0-3.0/  
2.0-3.0/  
94.0-96.0  /  
/  
  31.5-
33.5 
14.0-
16.0 
50.5-
54.5 5.0-9.0/  
45.0-
47.0/  
45.0-49.0  58.0-62.0/  
23.0-27.0/  
14.0-16.0  63.0-67.0/  
23.0-27.0/  
9.0-11.0  
Bubble Point1  -34.7  -35.6  -46.8  -43.6  -39.5  -42.9  -46.1  -29.2  -44.6  -44.6  -34.7  -35.6  
Dew Point1  -26.4  -27.9  -42.5  -36.6  -32.9  -35.8  -39.7  -27.2  -37.6  -44.1  -26.4  -27.9  
Critical Temperature1  106.9  106.9  75  86  91.4  88.5  83  99.5  86.5  83.1  106.9  106.9  
VAPOR PHASE 
CONTAMINANTS :                                      
Air and Other Non -
condensables, 
Maximum  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                                      
Water, Maximum  10  10  10  10  10  10  10  10  10  10  10  10  
All Other Volatile  
Impurities, Maximum  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling Residue, 
Maximum  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually clean  visually clean   Visually 
clean  Visually 
clean  Visually 
clean  
Acidity, Maximum  1  1  1  1  1  1  1  1  1  1  1  1  
Chloride2  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity   No visibl  No 
visible 
turbidity  No 
visible 
turbidity    
turbidity    
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable      
 PRD/ SZNS  073: 202 3 
 Edition 1  
26 
© Eswatini Standards Authority 202 3   
All rights reserved   
 
 
 
 
 
 
 Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)    
   Reportin
g Units  Referenc
e Section  R-416A  R-417A  R-417B  R-417C  R-418A  R-419A  R-419B  R-420A  R-421A  R-421B  
CHARACTERISTIC
S:                                      
Refrigerant 
Components  N/A  N/A  R-
134a/ 
124/60
0  R-125/ 
134a/60
0  R-125/ 
134a/60
0  R-125/ 
134a/60
0  R-290/ 
22/152
a  R-125/ 
134a/E17
0  R-125/ 
134a/E17
0  R-
134a/ 
142b  R-125/ 
134a  R-125/ 
134a  
Nominal 
Composition  % by weight  N/A  59.0/39.5/  
1.5  46.6/50.0/  
3.4  79.0/18.3/  
2.7  19.5/78.8/  
1.7  1.5/96.0/  
2.5  77.0/19.0/  
4.0  48.5/48.0/  
3.5  88.0/12.0  58.0/42.0  85.0/15.0  
Allowable 
Composition  % by weight  N/A  58.0-59.5/  
39.0-40.5/  
1.3-1.6  45.5-47.7/  
49.0-51.0/  
3.0-3.5  78.0-80.0/  
17.3-19.3/  
2.2-2.8  18.5-20.5/  
77.8-79.8/  
1.2-1.8  1.0-2.0/  
95.0-97.0/  
2.0-3.0  76.0-78.0/  
18.0-20.0/  
3.0-5.0  47.5-49.5/  
47.0-49.0/  
3.0-4.0  88.0-89.0/  
11.0-12.0  57.0-59.0/  
41.0-43.0  84.0-86.0/  
14.0-16.0  
Bubble Point1  ºC @ 
101.3 
kPa  N/A  -23.4  -38  -44  -32.7  -41.2  -42.6  -37.4  -25  -40.8  -45.7  
Dew Point1  ºC @ 
101.3 
kPa  N/A  -21.8  -32.9  -41.5  -29.2  -40.1  -36  -31.5  -24.2  -35.5  -42.6  
Critical 
Temperature  ºC  N/A  108.2  89.9  75.2  95.4  96.7  79.1  90.4  105.4  78.5  69  
VAPOR PHASE 
CONTAMINANTS :                                      
Air and Other Non -
condensables, 
Maximum  % by 
volume 
@ 
25.0ºC  5.10  1.50  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  PRD/ SZNS  073: 2023 
Edition 1  
27 
© Eswatini Standards Authority 202 3   
All rights reserved   Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)    
   Reporting 
Units  Reference 
Section  R-410A  R-410B  R-411A  R-411B  R-412A  R-413A  R-414A  R-414B  R-415A  R-415B  
CHARACTERISTICS :                                      
Refrigerant 
Components  N/A  N/A  R-
32/125  R-
32/125  R-1270/ 
22/152a  R-1270/ 
22/152a  R-
22/218/ 
142b  R-218/ 
134a/600a  R-22/124/ 
600a/142b  R-22/124/ 
600a/142b  R-22/152a  R-22/152a  
Nominal 
Composition  % by weight  N/A  50.0/50.0  45.0/55.0  1.5/87.5/  
11.0  3.0/94.0/3.0  70.0/5.0/  
25.0  9.0/88.0/3.0  51.0/28.5/ 
4.0/16.5  50.0/39.0/  
1.5/9.5  82.0/18.0  25.0/75.0  
Allowable 
Composition  % by weight  N/A  48.5-
50.5/  
49.5-51.5  44.0-
46.0/  
54.0-56.0  0.5-1.5/  
87.5-
89.5/  
10.0-11.0  2.0-3.0/  
94.0-96.0/  
2.0-3.0  68.0-
72.0/  
3.0-7.0/  
24.0-26.0  8.0-10.0/  
86.0-90.0/  
2.0-3.0  49.0-53.0/  
26.5-30.5/  
3.5-4.5/  
15.5-17.0  48.0-52.0/  
37.0-41.0/  
1.0-2.0/  
8.5-10.0  81.0-83.0/  
17.0-19.0  24.0-26.0/  
74.0-76.0  
Bubble Point1  ºC @ 
101.3 
kPa  N/A  -51.4  -51.3  -39.5  -41.6  -38  -30.6  -34  -32.9  -37.5  -27.7  
Dew Point1  ºC @ 
101.3 
kPa  N/A  -51.4  -51.6  -36.6  -40  -28.7  -27.9  -25.8  -24.3  -34.7  -26.2  
Critical Temperature1  ºC  N/A  71.4  70.8  99.1  96  107.2  98.5  110.7  111  100  111.3  
VAPOR PHASE 
CONTAMINANTS :                                      
Air and Other Non -
condensables, 
Maximum  % by 
volume 
@  
25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                                      
Water, Maximum  ppm by 
weight  5.4  10  10  10  10  10  10  10  10  10  10  
All Other Volatile  
Impurities, Maximum  % by weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling 
Residue, Maximum  % by 
volume or 
% by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or Fail  5.9  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  
Acidity, Maximum  ppm by 
weight (as 
HCl)  5.7  1  1  1  1  1  1  1  1  1  1  LIQUID PHASE 
CONTAMINANTS:                                      
Water, Maximum  ppm by 
weight  5.4  10  10  10  10  10  20  10  10  10  10  
All Other Volatile  
Impurities, 
Maximum  % by weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling 
Residue,  
Maximum  % by 
volume 
or % by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or Fail  5.9  Visuall
y clean  Visually 
clean  Visually 
clean  Visually 
Clean  Visuall
y clean  Visually 
clean  Visually 
Clean  Visuall
y clean  Visuall
y clean  Visuall
y 
clean  
Acidity, Maximum  ppm by 
weight 
(as HC1)  5.7  1  1  1  1  1  1  1  1  1  1  
Chloride2  Pass or Fail  5.6  No 
visible 
turbidit
y  No 
visible 
turbidit
y  No 
visible 
turbidit
y  No 
visible 
turbidit
y  No 
visible 
turbidit
y  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidit
y  No 
visible 
turbidit
y  No 
visible 
turbidit
y  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable    PRD/ SZNS  073: 202 3 
 Edition 1  
28 
© Eswatini Standards Authority 202 3   
All rights reserved   
 
 
 
 Chloride2  Pass or Fail  5.6  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Refprop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable    
Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)    
   Reporting 
Units  Reference 
Section  R-422A  R-422B  R-422C  R-422D  R-422E  R-423A  R-424A  R-425A  R-426A  R-427A   
CHARACTERISTICS:                                      
Refrigerant 
Components  N/A  N/A  R-125/  
134a/  
600a  R-125/  
134a/  
600a  R-125/  
134a/  
600a  R-125/  
134a/  
600a  R-125  
/134a/  
600a  R-134a/ 
227ea  R-125/  
134a/600a/  
600/ 601a  R-
32/134a/ 
227ea  R-125/  
134a/  
600/601a  R-32/125/ 
143a/134a  
Nominal 
Composition  % by 
weight  N/A  85.1/11.5 
/3.4  55.0/42.0/  
3.0  82.0/15.0/  
3.0  65.1/30.5/  
3.4  58.0/39.3 
/2.7  52.5/47.5  50.5/47.0/  
0.9/1.0/0.6  18.5/69.5/  
12.0  5.1/93.0/  
1.3/0.6  15.0/25.0/  
10.0/50.0  
Allowable 
Composition  % by 
weight  N/A  84.1-86.1/  
10.5-12.5/  
3.0-3.5  54.0-56.0/  
41.0-43.0/  
2.5-3.1  81.0-83.0/  
14.0-16.0/  
2.5-3.1  64.0-66.0/  
30.5-32.5/  
3.0-3.5  57.0-59.0/  
38.0-41.0/  
2.5-3.0  51.5-53.5/  
46.5-48.5  49.5-51.5/  
46.0-48.0/  
0.7-1.0/  
0.8-1.1/  
0.4-0.7  18.0-19.0/  
69.0-70.0/  
11.5-12.5  4.1-6.1/  
92.0-94.0/  
1.1-1.4/  
0.4-0.7  13.0-17.0/  
23.0-27.0/  
8.0-12.0/  
48.0-52.0  
Bubble Point1  ºC @ 
101.3 kPa  N/A  -46.5  -40.5  -45.3  -43.2  -41.8  -24.2  -39.1  -38.1  -28.5  -43  
Dew Point1  ºC @ 
101.3 kPa  N/A  -44.1  -35.6  -42.3  -38.4  -36.4  -23.5  -33.3  -31.3  -26.7  -36.3  
Critical Temperature  ºC  N/A  71.7  85.7  76.1  79.6  82.2  99  87.5  93.9  100.2  85.3  
VAPOR PHASE 
CONTAMINANTS :                                      
Air and Other Non -
condensables,  
Maximum  % by 
volume 
@  
25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  PRD/ SZNS  073: 2023 
Edition 1  
29 
© Eswatini Standards Authority 202 3   
All rights reserved  Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)    
   Reportin
g Units  Referenc
e Section  R-428A  R-429A  R-430A  R-431A  R-434A  R-435A  R-437A  R-438A  R-439A  R-440A  
CHARACTERISTICS
:                                      
Refrigerant 
Components  N/A  N/A  R-125/  
143a/  
290/600a  R-E170/  
152a/  
600a  R-152a/ 
600a  R290/ 
152a  R-125/  
143a/134a/  
600a  R-
E170/ 
152a  R-125/  
134a/600/  
601  R-32/125/  
134a/600/  
601a  R-32/  
125/  
600a  R-290/ 
134a/152
a  
Nominal 
Composition  % by 
weight  N/A  77.5/20.0/  
0.6/1.9  60.0/10.0/  
30.0  76.0/24.0  71.0/29.0  63.2/18.0
/ 16.0/2.8  80.0/20.0  19.5/78.5/  
1.4/0.6  8.5/45.0/  
44.2/1.7/  
0.6  50.0/47.0/  
3.0  0.6/1.6/97.8  
Allowable 
Composition  % by 
weight  N/A  76.5-78.5/  
19.0-21.0/  
0.4-0.7/  
1.7-2.0  59.0-61.0/  
9.0-11.0/  
29.0-31.0  75.0-77.0/  
23.0-25.0  70.0-72.0/  
28.0-30.0  62.2-64.2/  
17.0-19.0/  
15.0-17.0/  
2.6-2.9  79.0-81.0/  
19.0-21.0  17.7-20.0/  
77.8-80.0/  
1.2-1.5/  
0.4-0.7  7.0-9.0/  
43.5-46.5/  
42.7-45.7/  
1.5-1.8/  
0.4-0.7  49.0-51.0/  
46.0-48.0/  
2.5-3.5  0.5-0.7/  
1.0-2.2/  
97.3-98.3  
Bubble Point1  ºC @ 
101.3 
kPa  N/A  -48.3  -25.5  -27.6  -43.2  -45.1  -26  -32.9  -43  -52  -25.5  LIQUID PHASE 
CONTAMINANTS:                                      
Water, Maximum  ppm by  
weight  5.4  10  10  20  10  10  10  10  10  10  10  
All Other Volatile  
Impurities, Maximum  % by 
weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling 
Residue, Maximum  % by 
volume 
or  
% by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or 
Fail  5.9  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
Clean  Visually 
clean  Visually 
clean  Visually 
Clean  Visually 
clean  Visually 
clean  Visually 
clean  
Acidity, Maximum  ppm by 
weight  
(as HC1)  5.7  1  1  1  1  1  1  1  1  1  1  
Chloride2  Pass or 
Fail  5.6  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No visible 
turbidity  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable    PRD/ SZNS  073: 202 3 
 Edition 1  
30 
© Eswatini Standards Authority 202 3   
All rights reserved  Dew Point1  ºC @ 
101.3 
kPa  N/A  -47.5  -24.9  -27.4  -43.2  -42.4  -25.8  -29.2  -36.4  -51.7  -24.3  
Critical Temperature  ºC  N/A  69  123.5  107  100.3  75.6  125.2  95.3  84.2  72  112.9  
VAPOR PHASE 
CONTAMINANTS:                                      
Air and Other Non -
condensables, 
Maximum  % by 
volume 
@  
25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                                      
Water, Maximum  ppm by  
weight  5.4  10  20  20  10  10  20  10  10  10  10  
All Other Volatile  
Impurities, 
Maximum  % by 
weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling 
Residue,  
Maximum  % by 
volume 
or  
% by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or 
Fail  5.9  Visuall
y clean  Visuall
y clean  Visuall
y clean  Visuall
y clean  Visually 
clean  Visuall
y clean  Visuall
y clean  Visuall
y clean  Visuall
y clean  Visually 
clean  
Acidity, Maximum  ppm by 
weight  
(as HC1)  5.7  1  1  1  1  1  1  1  1  1  1  
 
Chloride2  Pass or 
Fail  5.6  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable    
 
 
 
 PRD/ SZNS  073: 2023 
Edition 1  
31 
© Eswatini Standards Authority 202 3   
All rights reserved   
 
 
 
 
 
 
Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)   
   Reportin
g Units  Referenc
e Section  R-442A  R-444A  R-444B  R-445A  R-446A  R-447A  R-447B  R-448A  R-449A  R-449B  
CHARACTERISTIC
S:                                      
Refrigerant 
Components  N/A  N/A  R-32/125/  
134a/152
a/  
227ea  R-
32/152a/ 
1234ze(E
)  R-32 / 152a 
/ 1234ze(E)  R-744  
/134a  
/1234ze(E)   R-32  
/1234ze(E
)  
/600   R-32  
/125  
/1234ze(E
)   R-32  
/125  
/1234ze(E
)  R-32 / 125  
/ 1234yf /  
134a /  
1234ze(E)  R-32 / 125  
/ 1234yf /  
134a  R-32/125  
/1234yf  
/134a   
Nominal 
Composition  % by 
weight  N/A  31.0/31.0/  
30.0/3.0/  
5.0  12.0/5.0 
/83.0  41.5/10.
0 /48.5  6.0/9.0/85.
0  68.0/29.0 
/3.0  68.0/3.5 
/28.5  68.0/8.0 
/24.0  26.0/26.0  
/20.0/21.0  
/ 7.0  24.3/24.7  
/25.3/25.7  25.2 / 24.3  
/ 23.2 /  
27.3  
Allowable 
Composition  % by 
weight  N/A  30.0-32.0/  
30.0-32.0/  
29.0-31.0/  
2.5-3.5/  
4.0-6.0  11.0-13.0  
/4.0-6.0  
/81.0 -85.0  40.5-42.5 /  
9.0-11.0 /  
47.5-49.5  5.0-7.0  
/8.0-10.0  
/83.0 -87.0  67.0-68.5  
/28.4 -31.0  
/2.0-3.1  67.5-69.5  
/3.0-5.0  
/27.5 -29.5  66.0-69.0  
/7.0-10.0  
/22.0 -25.0  24.0-26.5 
/  
25.5-28.0 
/  
18.0-20.5 
/  
20.0-23.0 
/  
5.0-7.5  23.3-24.5 
/  
24.5-25.7 
/  
24.3-25.5 
/  
25.5-26.7  23.7-25.5  
/24.0 -25.8  
/21.7 -23.5  
/27.0 -28.8  
Bubble Point1  ºC @ 
101.3 
kPa  N/A  -46.5  -34.3  -44.6  -50.3  -49.4  -49.3  -50.0  -45.9  -46  -46.1  
Dew Point1  ºC @ 
101.3 
kPa  N/A  -39.9  -24.3  -34.9  -23.5  -42.1  -44.2  -46.0  -39.8  -39.9  -40.2  
Critical 
Temperature  ºC  N/A  82.4  103.2  91.5  98  84.2  82.6  83.6  81.6  81.5  84.2  PRD/ SZNS  073: 202 3 
 Edition 1  
32 
© Eswatini Standards Authority 202 3   
All rights reserved  VAPOR PHASE 
CONTAMINANTS :                                      
Air and Other Non -
condensables, 
Maximum  % by 
volume 
@ 25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                                      
Water, Maximum  ppm 
by 
weigh
t  5.4  10  10  10  10  10  10  10  10  10  10  
All Other Volatile  
Impurities, 
Maximum  % by 
weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling 
Residue,  
Maximum  % by 
volume 
or % by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or 
Fail  5.9  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visuall
y clean  Visuall
y clean  Visuall
y clean  
Acidity, Maximum  ppm 
by 
weigh
t (as 
HC1)  5.7  1  1  1  N/A  1  1  1  1  1  1  
Chloride2  Pass or 
Fail  5.6  No visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No 
visible 
turbidit
y  No 
visible 
turbidit
y  No 
visible 
turbidit
y  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable   
 
 
 
 
 PRD/ SZNS  073: 2023 
Edition 1  
33 
© Eswatini Standards Authority 202 3   
All rights reserved   
 
 
 
 
 
Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)    
   Reporting 
Units  Reference 
Section  R-449C  R-450A  R-451A  R-451B  R-452A  R-452B  R-452C  
CHARACTERISTICS :                             
Refrigerant Components  N/A  N/A  R-32  
/125  
/1234yf  
/134a  R-134a/ 
1234ze(E)  R-1234yf/134a  R-1234yf/134a  R-32/125/1234yf   R-32/  
125/  
1234yf  R-32/  
125/  
1234yf  
Nominal Composition  % by weight  N/A  20.0/20.0  
/31.0/29.0  42.0/58.0  89.8 / 10.2  88.8 / 11.2  11.0 / 59.0 / 30.0  67.0/7.0/  
26.0  12.5/61.0/  
26.5  
Allowable Composition  % by weight  N/A  18.5-20.5  
/19.5 -21.5  
/29.5 -31.5  
/28.5 -30.5  40.0-44.0/  
56.0-60.0   89.6-90.0 / 10.0 - 
10.4  88.6-89.0 / 11.0 - 
11.4  9.3-12.7/57.2 - 
60.8/29.0 -30.1  65.0-69.0/  
5.5-8.5/  
24.0-28.0  11.0-13.0/  
60.0-62.0/  
25.0-27.0  
Bubble Point1  ºC @ 
101.3 kPa  N/A  -44.6  -23.4  -30.8  -31  -47  -51.0  -47.5  
Dew Point1  ºC @ 
101.3 kPa  N/A  -38.1  -22.8  -30.5  -30.6  -43.2  -50.3  -44.2  
Critical Temperature  ºC  N/A  83.5  104.4  95.4  95.5  74.9  75.7  75.8  
VAPOR PHASE 
CONTAMINANTS :                             
Air and Other Non -
condensables, Maximum  % by 
volume @ 
25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                             
Water, Maximum  ppm by  
weight  5.4  10  10  10  10  10  10  10  
All Other Volatile 
Impurities,  % by weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  PRD/ SZNS  073: 202 3 
 Edition 1  
34 
© Eswatini Standards Authority 202 3   
All rights reserved  Maximum  
High Boiling Residue,  
Maximum  % by 
volume or 
% by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or Fail  5.9  Visually 
clean  Visually clean  Visually clean  Visually clean  Visually clean  Visually 
clean  Visually 
clean  
Acidity, Maximum  ppm by 
weight  
(as HC1)  5.7  1  1  1  1  1  1  1  
Chloride2  Pass or Fail  5.6  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible turbidity  No 
visible 
turbidity  No visible 
turbidity  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refrigerant dat a compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable   
 
 
 Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)   
   Reporting Units  Reference Section  R-453A  R-454A  R-454B  R-454C  R-455A  R-456A  R-457A  
CHARACTERISTICS :                             
Refrigerant 
Components  N/A  N/A  R-32/125/  
134a/ 227ea/  
600/601a  R-32/ 
1234yf  R-32/ 
1234yf  R-32/ 
1234yf   R-744/  
32/  
1234yf   R-32/  
134a/  
1234ze(E)  R-32/  
1234yf/  
152a  
Nominal Composition  % by weight  N/A  20.0/20.0/  
53.8/5.0/  
0.6/0.6  35.0 / 65.0  68.9 / 31.1  21.5/78.5  3.0/21.5/  
75.5    6.0/45.0/  
49.0  18.0/70.0/  
12.0  
Allowable 
Composition  % by weight  N/A  19.0-21.0/  
19.0-21.0/  
52.8-54.8/  
4.5-5.5/  
0.4-0.7/ 0.40.7  33.0-37.0/  
63.0-67.0  67.9-69.9/  
30.1-32.1  19.5-23.5/  
76.5-80.5  2.0-5.0/  
19.5-22.5/  
73.5-77.5  5.0-7.0/  
44.0-46.0/  
48.0-50.0  16.5-18.5/  
68.5-70.5/  
10.1-12.1  
Bubble Point1  ºC @ 101.3 kPa  N/A  -42.2  -48.4  -50.9  -46.0  -51.6  -30.4  -42.7  PRD/ SZNS  073: 2023 
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© Eswatini Standards Authority 202 3   
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 Dew Point1  ºC @ 101.3 kPa  N/A  -35  -41.6  -50.0  -37.8  -39.1  -25.6  -35.5  
Critical Temperature  ºC  N/A  88  86.2  76.5  82.4  82.8  102.4  92.6  
VAPOR PHASE 
CONTAMINANTS :                             
Air and Other Non -
condensables, 
Maximum  % by volume @ 25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                             
Water, Maximum  ppm by weight  5.4  10  10  10  10  10  10  10  
All Other Volatile  
Impurities, Maximum  % by weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling Residue, 
Maximum  % by volume or % by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or Fail  5.9  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  
Acidity, Maximum  ppm by weight (as 
HC1)  5.7  1  1  1  1  1  1  1  
Chloride2  Pass or Fail  5.6  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable  
  PRD/ SZNS  073: 202 3 
 Edition 1  
36 
© Eswatini Standards Authority 202 3   
All rights reserved   
 
 
 
 
Table 2A.  Zeotropic Blends (400 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)  
   Reporting 
Units  Reference 
Section  R-458A  R-459A  R-459B  R-460A  R-460B  R-461A   R-462A   
CHARACTERISTICS :                             
Refrigerant Components  N/A  N/A  R-32/  
125/134a/  
227ea/  
236fa  R-32/  
1234yf/  
1234ze(E)  R-32/  
1234yf/  
1234ze(E)  R-32/125/  
134a/  
1234ze(E)  R-32/125/  
134a/  
1234ze(E)  R-125/143a/  
134a/227ea/  
600a  R-32/125/143a/134a/600   
Nominal Composition  % by 
weight  N/A  20.5/4.0/  
61.4/13.5/  
0.6  68.0/26.0/  
6.0  21.0/69.0/  
10.0  12.0/52.0/  
14.0/22.0  28.0/25.0/  
20.0/27.0  55.0/ 5.0/ 32.0/  
5.0/ 3.0  9.0/ 42.0/ 2.0/ 44.0/ 3.0   
Allowable Composition  % by 
weight  N/A  20.0-21.0/ 
3.5-4.5/  
60.9-61.9/  
13.0-14.0/  
0.5-0.7  66.5-68.5/  
24.0-28.0/  
5.5-7.5  20.0-21.5/  
67.0-71.0/  
9.0-11.0  11.0-13.0/  
51.0-53.0/  
13.0-15.0/  
21.0-23.0  27.0-29.0/  
24.0-26.0/  
19.0-21.0/  
26.0-28.0  54.0-56.0/ 
4.55.5/ 31.0 -
33.0/  
4.5-5.5/ 2.63.1  8.0-10.5/ 40.0 -44.0/ 1.0 - 
3.0/ 42.0 -46.0/ 2.0 -4.0  
Bubble Point1  ºC @ 101.3 
kPa  N/A  -39.8  -50.3  -44.0  -44.6  -45.2  -42  -42.6  
Dew Point1  ºC @ 101.3 
kPa  N/A  -32.4  -48.6  -36.1  -37.2  -37.1  -37  -36.6  
Critical Temperature  ºC  N/A  92.0  81.5  89.8  81.6  85.7  81.4  83.5  
VAPOR PHASE CONTAMINANTS :                             
Air and Other Non -condensables, 
Maximum  % by 
volume @ 
25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE CONTAMINANTS:                             
Water, Maximum  ppm by  
weight  5.4  10  10  10  10  10  10  10  
All Other Volatile Impurities, 
Maximum  % by 
weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
High Boiling Residue, Maximum  % by volume 
or % by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  PRD/ SZNS  073: 2023 
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© Eswatini Standards Authority 202 3   
All rights reserved   
Table 3.  Azeotropic Blends (500 Series Refrigerants) Characteristics and Allowable Levels of Contaminants  
Ta
b   Reporting 
Units Referenc
e 
Section  R-500 R-502 R-503 R-507A R-508A R-508B R-509A R-510A R-511A R-512A 
 CHARACTERISTICS :             
 Refrigerant  
Components  N/A N/A R-12/ 
152a R-22/115  R-23/13 R-125/ 143a  R-23/116  R-23/116  R-22/218  R-E170/ 
600a R-290/ 
E170 R-134a/ 
152a 
 Nominal Composition  % by 
weight  N/A 73.8/26.2  48.8/51.2  40.1/59.9  50.0/50.0  39.0/61.0  46.0/54.0  44.0/56.0  88.0/12.0  95.0/5.0  5.0/95.0  
  
 Allowable 
Composition  
  % by 
weight  N/A 72.8-74.8/ 
25.2-27.2 44.8-52.8/ 
47.2-55.2 39.0-41.0/ 
59.0-61.0 49.5-
51.5/ 
48.5-
50.5 37.0-
41.0/ 
59.0-
63.0 44.0-48.0/ 
52.0-56.0 42.0-
46.0/ 
56.0-
60.0 87.5-
88.5/ 
11.5-
12.5 94.0-
96.0/ 
4.0-6.0 4.0-6.0/ 
94.0-96.0 
 Bubble Point1 ºC @ 
101.
3 
kPa N/A -33.6 -45.2 -87.8 -46.7 -87.4 -87 -49.8 -24.9 -42 -24 
  1 
 Dew Point  ºC @ 
101.
3 
kPa N/A -33.6 -45 -87.8 -46.7 -87.4 -87 -48.1 -24.9 -42 -24 
 Critical Temperature1 ºC N/A 102.1 80.2 18.4 70.6 10.8 11.8 68.6 125.7 97 112.9 
 VAPOR PHASE  
 CONTAMINANTS :             
 Air and Other Non  
condensables,  
Maximum  % by 
volume @  
25ºC 5.10 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Particulates/Solids  Pass or Fail  5.9  Visually clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually clean   Visually clean   
Acidity, Maximum  ppm by 
weight  
(as HC1)  5.7  1  1  1  1  1  1  1  
Chloride2  Pass or Fail  5.6  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity  No visible 
turbidity   No visibl  e  No visible turbidity   turbidity  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable  PRD/ SZNS  073: 202 3 
 Edition 1  
38 
© Eswatini Standards Authority 202 3   
All rights reserved  Table 2B.  Hydrocarbon Blends (400 & 500 Series Refrigerants) Characteristics and Allowable Levels of Contaminants   
   Reporting 
Units  Reference 
Section  R-432A  R-433A  R-433B  R-433C  R-436A  R-436B  R-441A  R-443A  
CHARACTERISTICS :                                
Refrigerant Components  N/A  N/A  R-1279 
/E170  R-1270 
/290  R-1270 
/290  R-1270 
/290  R-290 
/600a  R-290 
/600a  R-170  
/290/600a  
/600  R-1270  
/290  
/600a  
Nominal Composition  % by 
weight  N/A  80.0/20.0  30.0  
/70.0  5.0/95.0  25.0/75.0  56.0/44.0  52.0/48.0  3.1/54.8  
/6.0/36.1  55.0/40.0 
/5.0  
Allowable Composition  % by 
weight  N/A  79.0-81.0  
/19.0 -21.0  29.0-31.0  
/69.0 -71.0  4.0-6.0  
/94.0 -96.0  24.0-26.0  
/74.0 -76.0  55.0-57.0  
/43.0 -45.0  51.0-53.0  
/47.0 -49.0  2.8-2.4  
/52.8 -
56.8 
/5.4-6.6  
/34.1 -38.1  53.0-57.0  
/38.0 -42.0  
/3.8-6.2  
Bubble Point1  ºC @ 
101.3 kPa  N/A  -45.2  -44.4  -42.5  -44.1  -34.3  -33.3  -41.5  -45.2  
Dew Point1  ºC @ 
101.3 kPa  N/A  -42.4  -44  -42.4  -43.7  -26.1  -25  -20.3  -42.1  
Critical Temperature1  ºC  N/A  97.3  94.4  96.3  94.8  115.9  117.4  117.3  95.1  
VAPOR PHASE CONTAMINANTS2:                                 
Air and Other Non -condensables, Maximum  % by volume 
@  
25.0ºC  5.10  1.5  1.5  1.5  1.5  1.5  1.5  1.5  1.5  
LIQUID PHASE CONTAMINANTS3:                                 
Sulfur Odor4  No odor 
to pass  Pass  Pass  Pass  Pass  Pass  Pass  Pass  Pass  Pass  
High Boiling Residue, Maximum  % by volume 
or % by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or Fail  5.9  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  Visually 
clean  
Acidity, Maximum  ppm by  
weight  5.7  1  1  1  1  1  1  1  N/A  
Water, Maximum  ppm by  
weight  5.4  20  10  10  10  10  10  10  10  
All Other Volatile Impurities, Maximum  % by 
weight  5.11  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
Total C 3, C4 and C 5 Polyolefins, Maximum  % by 
weight  5.12  0.05  0.05  0.05  0.05  0.05  0.05  0.05  0.05  PRD/ SZNS  073: 2023 
Edition 1  
39 
© Eswatini Standards Authority 202 3   
All rights reserved   LIQUID PHASE  
CONTAMINANTS:              
 Water, Maximum  
  ppm by  
weight  5.4 10 10 10 10 10 10 10 20 20 10 
 All Other Volatile  
 Impurities, Maximum  % by 
weight  5.11 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 
  
 High Boiling Residue,  
 Maximum  % by 
volume or  
% by 
weight  5.8 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 
  
 Particulates/Solids  Pass or 
Fail 5.9 Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean Visuall
y 
clean 
 Acidity, Maximum  
  ppm by  
weight  5.7 1 1 1 1 1 1 1 1 1 1 
 Chloride2 Pass or 
Fail 5.6 No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  
 Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable  
 
 
 
 
 Chloride2  Pass or Fail  5.6  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  No 
visible 
turbidity  N/A  N/A  
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refrigerant data compiled f rom Ref  prop 9.1.  
2.Taken from vapor phase  
3. Vaporized from liquid phase  
4. Including hydrogen sulphide and mercaptans  
N/A Not Applicable  
  PRD/ SZNS  073: 202 3 
 Edition 1  
40 
© Eswatini Standards Authority 202 3   
All rights reserved   
 
 
 
 
 
 
Table 3.  Azeotropic Blends (500 Series Refrigerants) Characteristics and Allowable Levels of Contaminants (continued)  
   Reporting 
Units  Reference 
Section  R-513A  R-513B  R-514A   R-515A  R-516A   
CHARACTERISTICS :                       
Refrigerant Components  N/A  N/A  R-1234yf/ 
134a  R-1234yf/ 134a  
R-1336mzz(Z)/1130(E)   R-
1234ze(E)/ 
227ea  R-1234yf/134a/152a   
Nominal Composition  % by weight  N/A  56.0/44.0  58.5/41.5   74.7/25.3   88.0/12.0  77.5/8.5/14.0   
Allowable Composition  % by weight  N/A  55.0-57.0/  
43.0-45.0  58.0-59.0/  
41.0-42.0  74.2-76.2 / 23.8 - 25.8   86.0-89.0/  
11.0-14.0  76.1-78.9/7.0 -9.0/12.1 -14.1  
Bubble Point1  ºC @ 101.3 
kPa  N/A  -29.2  -29.2  29.0   -18.9  -29.4  
Dew Point1  ºC @ 101.3 
kPa  N/A  -29.1  -29.1   29.0  -18.9  -29.4  
Critical Temperature1  ºC  N/A  96.5  95.5   178.1   108.4  99.3  
VAPOR PHASE 
CONTAMINANTS :                       
Air and Other Non -
condensables, Maximum  % by 
volume @ 
25ºC  5.10  1.5  1.5  N/A   1.5  1.5  
LIQUID PHASE 
CONTAMINANTS:                       
Water, Maximum  ppm by 
weight  5.4  10  10  20    10  10  
All Other Volatile 
Impurities,  
Maximum  % by weight  5.11  0.5  0.5  0.5   0.5  0.5  PRD/ SZNS  073: 2023 
Edition 1  
41 
© Eswatini Standards Authority 202 3   
All rights reserved  High Boiling Residue, 
Maximum  % by 
volume or 
% by 
weight  5.8  0.01  0.01  0.01  0.01  0.01  
Particulates/Solids  Pass or Fail  5.9  Visually 
clean  Visually clean  Visually clean   Visually clean  visually clean   
Acidity, Maximum  ppm by 
weight  5.7  1  1  1   1  1  
Chloride2  Pass or Fail  5.6  No visible 
turbidity  No visible 
turbidity  No visible turbidity   No visible 
turbidity  No visible turbidity   
Notes:  
1. Bubble points, dew points and critical temperatures, although not required, are provided for informational purposes. Refriger ant data compiled from Ref  prop 9.1.  
2. Recognized chloride level for pass/fail is about 3 ppm.  
N/A Not Applicable   
42 
 8  Appendix A.  References – Informative   
  
8.1 Listed here are standards, handbooks and other publications which may provide useful information and 
background but are not considered essential.  References in this appendix are not considered part of the standard.  
8.2 2012 Appendix D  Gas Chromatograms for AHRI Standard 700 -2015 - Informative, Specification for 
Fluorocarbon Refrigerants, 2012, Air -Conditioning, Heating, and Refrigeration Institute, 2111 Wilson Blvd., 
Suite 500, Arlington, VA  22201; U.S.A.  
8.3 U.S. Code of Federal Regulations, Title 40,  Part 82, Protection of Stratospheric Ozone , 2013, Office of the 
Federal Register, National Archives and Records Administration, 800 North Capitol Street, NW, Washington, DC  
20402, U.S.A.  
9 Appendix B.  Analytical Procedures for AHRI Standard 700 - Normative  
9.1  Appendix C is available for download from the AHRI website: 
http://www.ahrinet.org/site/686/Standards/HVACR Industry -Standards/Search -Standards .  
  
10 Appendix C.  Gas Chromatograms for AH RI Standard 700 - 
Informative  
10.1  Appendix D is available for download from the AHRI website:  
http://www.ahrinet.org/site/686/Standards/HVACR Industry -Standards/Search -Standards .WD/ SZNS XX: 202 3 
Edition 1  
 
43 
 Bibliography  
    
1. AHRI Standard 700 -2017 With Addendum 1