O-Ring Tools

Check media resistance

The right O-ring material for every medium. Choose your medium and instantly get the suitable materials, or search the complete comparison table of 430 media.

O-ring cross-section
A Excellent B Good C Moderate D Poor

Columns with a coral marker are materials from our range: FKM, FFKM (ECOLAST®), PTFE and FEP-encapsulated.

430 of 430 media
MediumCASFFKMFKMFEPPTFENBRHNBREPDMVMQFVMQFEPM
Acetaldehyde75-07-0ADAADCBDDD
Acetamide60-35-5ACAABBAAAB
Acetic acid64-19-7ACAACCADDD
Acetone67-64-1ADAADDBDDD
Acetophenone98-86-2ADAADDBDDD
Acrolein107-02-8AAAABBADDA
Acrylic acid79-10-7ADAABBCDBD
Alkali lye—ABAABBABBB
Aluminium acetate139-12-8ACAABBADDA
Aluminium chloride7446-70-0ACAABBADDA
Aluminium fluoride7784-18-1AAAAAAABAA
Aluminium hydroxide21645-51-2ABAAAABAAA
Aluminium nitrate13473-90-0AAAAAAABAA
Aluminium orthophosphate7784-30-7AAAAAAAAAA
Aluminium sulfate10043-01-3AAAAAAAAAA
Aminobenzoic acid150-13-0ABAADDBDDA
Ammonia, gaseous7664-41-7ADAAAAAADA
Ammonia, liquid7664-41-7ADAABBABDB
Ammonium7664-41-7ACAAAAAACA
Ammonium acetate631-61-8ADAAABABAA
Ammonium arsenate7784-44-3ABAABBABAA
Ammonium bromide12124-97-9AAAAAAABAA
Ammonium carbamate1111-78-0AAAACCBCAA
Ammonium carbonate506-87-6ABAADDBBCA
Ammonium chloride12125-02-9AAAAAAACBA
Ammonium fluoride12125-01-8AAAAAAACBA
Ammonium hydroxide1336-21-6ABAADDAABB
Ammonium nitrate6484-52-2ABAAAAACCA
Ammonium nitrite13446-48-5AAAAAAACAA
Ammonium sulfate7783-20-2ADAAAAABDA
Amylnaphthalene86-89-5AAAADDDDAC
Aniline62-53-3ACAADDDDCB
Anilinium chloride142-04-1ABAACBCCBA
Animal fat—AAAAAACAAA
Animal fats—AAAAAACBAA
Anthracene120-12-7AAAABBDDCA
Aqua regia8007-56-5ABAADDCDCA
Argon7440-37-1AAAAABABBA
Arsenic acid7778-39-4AAAABAAAAA
Asphalt8052-42-4ADAACCDDCD
Barium chloride10361-37-2AAAAAAAAAA
Barium hydroxide12230-71-6AAAAAAAAAA
Barium sulfate7727-43-7AAAAAAAAAA
Barium sulfide21109-95-5AAAAAAAAAA
Beer—AAAAAAAAAA
Benzene71-43-2ABAADDDDDC
Benzenesulfonic acid98-11-3AAAADDCDCB
Benzoin isobutyl ether22499-12-3ADAACBDDDD
Benzoyl chloride98-88-4AAAADDDDBA
Benzyl acetate140-11-4ADAADDADDC
Benzyl alcohol100-51-6AAAADDACBA
Benzyl bromide100-39-0AAAADDDDDB
Benzyl chloride100-44-7ABAADDDDCA
Biphenyl92-52-4AAAADDDDCB
Body fluid—AAAAAAAAAA
Bordeaux mixture (copper-lime)8011-63-0AAAADDABBA
Boric acid10043-35-3AAAAAAABAA
Brake fluid (glycol-based)—ADAACCADDA
Brake fluid (mineral-oil-based)—AAAAAADCAA
Bromine7726-95-6ACAADDDDCD
Bromine water7726-95-6ABAADCBDCC
Bromobenzene108-86-1ABAADDDDBC
Bromomethane74-83-9AAAABBDCAB
Butadiene106-99-0ABAADDDDAB
Butane106-97-8AAAAAADDAB
Butanediol110-63-4AAAABBADDA
Butanol71-36-3AAAAAABCBA
Butanone78-93-3ADAADDCDDD
Butene106-98-9AAAABBDDBB
Butenyne689-97-4AAAAAAABBB
Butter8029-34-3AAAAAABBAA
Butyl acetate123-86-4ADAADDBDDD
Butyl acrylate141-32-2ADAADDDCDD
Butyl acrylate141-32-2ADAADDDDDD
Butyl diglycol112-34-5ABAADDADDB
Butyl lactate138-22-7ABAABBAAAA
tert-Butyl mercaptan75-66-1ADAADDDDDD
Butylamine109-73-9ADAACDCCDB
Butylene106-98-9AAAABDDDCB
Calcium acetate62-54-4ADAADCBDDA
Calcium arsenate7778-44-1AAAAAAABAA
Calcium chloride10043-52-4AAAAAAAAAA
Calcium hydrogen sulfite13780-03-5AAAAAABDCA
Calcium hydroxide1305-62-0AAAAAAACAA
Calcium nitrate10124-37-5AAAAAAABAA
Calcium phosphate7758-87-4AAAAAAAAAA
Calcium sulfide20548-54-3AAAABAABAA
Camphor76-22-2ABAAAADDDB
Carbon dioxide124-38-9AAAAAABBAA
Carbon disulfide75-15-0AAAADDDDAA
Carbon monoxide630-08-0AAAAAAAAAB
Carbon tetrachloride56-23-5BBBACDDDDA
Carbonic acid463-79-6AAAABAAAAA
Castor oil8001-79-4AAAAAABAAA
Chloral hydrate302-17-0BCAADDDDDC
Chlordane57-74-9AAAABBDDBA
Chlorine (dry)7782-50-5AAAADCDDBC
Chlorine (wet)7782-50-5ABAADDCDCC
Chlorine dioxide10049-04-4AAAADDDDCA
Chloroacetic acid79-11-8ADAADDBDDD
Chloroacetone78-95-5ADAADDADDD
Chlorobenzene108-90-7AAAADDDDCC
Chloroethane75-00-3AAAAAABDAB
Chloroform67-66-3AAAADDDDBD
Chloromethane74-87-3ABAADDCDBD
Chloromethylpropane513-36-0AAAADDBABB
Chloropropane540-54-5AAAADDDDCD
Chlorotoluene95-49-8ABAADDDDCC
Chromic acid7738-94-5AAAADDBCCA
Citric acid77-92-9AAAAAAAAAA
Coal tar8007-45-2AAAAAAADAA
Coconut oil8001-31-8AAAAAACAAA
Coffee—AAAABBBAAA
Copper acetate6046-93-1ADAABBBDDA
Copper chloride7447-39-4AAAAAAAAAA
Copper cyanide544-92-3AAAAAAAAAA
Copper sulfate7758-98-7AAAAAAAAAA
Copper(II) acetate142-71-2ADAABBBDDD
Corn oil8001-30-7AAAAAACAAA
Cresol1319-77-3AAAADBDDBA
Cresylic acid—AAAADBDDBA
Crude oil8002-05-9AAAACBDDBA
Cumene (isopropylbenzene)98-82-8AAAADDDDBC
Cyclohexane110-82-7AAAAAADDCB
Cyclohexanol108-93-0AAAABBDDAA
Cyclohexanone108-94-1ADAADDCDDB
Decalin91-17-8AAAADDDDBB
Decane124-18-5AAAAAADBAA
Deionized water7732-18-5AAAAAAADCA
Diacetone alcohol123-42-2ADAADDADDD
Dibenzyl ether103-50-4ADAADDBDDD
Dibutyl ether142-96-1ADAADDCDCD
Dibutyl phthalate84-74-2ACAADDBBCB
Dibutylamine111-92-2ADAADDDDDB
Dichloroethane107-06-2AAAADDDDCB
Dichloroisobutane26761-81-9AAAABBDDBA
Dichloromethane75-09-2ABAADDDDBB
Diesel fuel68476-34-6ABAAAADDAA
Diethyl ether60-29-7ADAACCCDCD
Diethyl sulfate64-67-5ADAADDBDDA
Diethylamine109-89-7ADAACCCDDA
Diethylene glycol111-46-6AAAAAAABAA
Diethylenetriamine111-40-0ADAABBADDD
Diisopropyl ether108-20-3ADAACCDDCC
Diisopropyl ketone565-80-0ADAADDBDDD
Diisopropylbenzene577-55-9AAAADDDDCC
Dimethyl carbonate616-38-6AAAADDDDBA
Dimethyl ether115-10-6ADAABBCAAD
Dimethyl sulfate77-78-1ABAADDDDDD
Dimethylaniline121-69-7ADAADDCDDD
Dimethylbutane79-29-8AAAAAADDAA
Dimethylpentanone565-80-0ADAADDBDDD
Dioxane123-91-1ADAADCBDDD
Diphenyl74-31-7AAAADDDDCB
Diphenyl oxide101-84-8ABAADDDDCC
Dodecylbenzene123-01-3AAAADDDDDB
Dowtherm 209107-98-2ACAACBACCA
Drinking water7732-18-5AAAAAAAAAA
Epichlorohydrin106-89-8ADAADDCDDD
Ethane74-84-0AAAAAADDBA
Ethanol64-17-5ABAABBAAAA
Ethanol fuel64-17-5AAAADDDDBB
Ethanolamine141-43-5ADAABBBBDB
Ethene74-85-1AAAAAABDAB
Ether60-29-7ADAACCCDCD
Ethyl acetate141-78-6ADAADDCCDD
Ethyl acrylate140-88-5ADAADDCCDC
Ethyl benzoate93-89-0ABAADDBDBC
Ethyl chloroformate541-41-3AAAADDDDBB
Ethyl formate109-94-4BAAADDBDAB
Ethyl sulfate540-82-9ACAADDADDA
Ethylbenzene100-41-4AAAADDADAB
Ethylene glycol107-21-1AAAABBAAAA
Ethylene oxide75-21-8ADAADDDDDD
Ethylenediamine107-15-3ADAAAAABDB
Ethylhexanol104-76-7AAAAAAABAA
Ethyne74-86-2AAAAAAABAA
FC 11 (trichlorofluoromethane)75-69-4BBAABBDDBD
FC 112 (tetrachlorodifluoroethane)76-12-0BBAABBDDCD
FC 113 (trichlorotrifluoroethane)76-13-1CBAAAADDDD
FC 114 (dichlorotetrafluoroethane)76-14-2CBAAAAADBD
FC 114B2 (dibromotetrafluoroethane)124-73-2CBAABBDDBD
FC 115 (chloropentafluoroethane)76-15-3CBAAAAADDD
FC 12 (dichlorodifluoromethane)75-71-8BBAAAABDCD
FC 13 (chlorotrifluoromethane)75-72-9AAAAAAADCA
FC 134a (tetrafluoroethane)811-97-2BDAAAAACCD
FC 13B1 (bromotrifluoromethane)75-63-8BBAAAAADBB
FC 142b (chlorodifluoroethane)75-68-3CBAABBDDDD
FC 22 (chlorodifluoromethane)75-45-6BDAADDBDDD
FC 31 (chlorofluoromethane)593-70-4BDAADDBDDD
FC 32 (difluoromethane)75-10-5BDAAAAADCD
FC C316 (dichlorohexafluorocyclobutane)356-18-3BAAAAAADDD
FC C318 (octafluorocyclobutane)115-25-3CBAAAAADDD
Fish oil8016-13-5AAAAAADAAA
Fluorine7782-41-4DBDBDDCDBB
Fluorobenzene462-06-6ACAADDDDBA
Formaldehyde50-00-0ADAACCBBDA
Formic acid64-18-6BCAACCBDDC
Furfural98-01-1BDAADCBDDC
Gallic acid149-91-7AAAABBBBAA
Gelatin9000-70-8AAAAAAAAAA
Glucose50-99-7AAAAAAAAAA
Glycerine56-81-5AAAAAABAAA
Glycine56-40-6AAAABBACBB
Heavy oil—AAAAAADBAA
Helium7440-59-7AAAAAAAAAA
Heptane142-82-5AAAAABDDBC
Hexadecane544-76-3AAAAAADDCA
Hexafluorosilicic acid16961-83-4ABAABBBDDA
Hexane110-54-3AAAAABDDAB
Hexanol111-27-3AAAABBCCBB
Hexanone591-78-6ADAADDBCDD
Hydraulic fluid—AAAAAADCBA
Hydraulic fluid (hydrocarbon-based)—AAAAAADCBA
Hydraulic fluid (petroleum-based)—AAAAAADBAA
Hydraulic fluid (silicone-based)—AAAAAAADCA
Hydraulic fluid (water-glycol-based)—ABAABBBDDA
Hydraulic oil (MIL-H-5606)—AAAAAADDAB
Hydrobromic acid10035-10-6AAAADDADCA
Hydrochloric acid7647-01-0AAAACCACCA
Hydrocyanic acid74-90-8AAAABBADCB
Hydrofluoric acid7664-39-3AAAADDDDDA
Hydrogen1333-74-0AAAAAAACCA
Hydrogen chloride7647-01-0AAAADDADDA
Hydrogen fluoride7664-39-3ABAADDDDDB
Hydrogen peroxide7722-84-1ABAADCBCBC
Hydrogen sulfide7783-06-4ACAADCACCB
Hydroquinone123-31-9BBBBDDBDCC
Iodine7553-56-2AAAACBBCAB
Iodine pentafluoride7783-66-6BDBBDDDDDD
Iron(II) chloride7758-94-3AAAAAAABAA
Iron(III) chloride7705-08-0AAAAAAABAA
Iron(III) nitrate10421-48-4AAAAAAABAA
Iron(III) sulfate10028-22-5AAAAAAAAAA
Isoamyl acetate123-92-2ADAADDCDDD
Isoamyl butyrate106-27-4ADAADDDDDD
Isopentane78-78-4AAAAAADDDA
Isophorone78-59-1ADAADDDDDC
Isopropyl acetate108-21-4ADAADDCDDD
Isopropyl chloride75-29-6AAAADDDDCB
Isopropyl ether108-20-3ADAACBDDCD
Isopropylamine75-31-0ADAABBDDDB
Kerosene8008-20-6AAAAAADDAC
Lacquer—ADAADDDDDD
Lactic acid50-21-5AAAAAAABAA
Lavender oil8000-28-0AAAABCDDBA
Lead acetate301-04-2ADAACBADDD
Lead nitrate10099-74-8AAAAAAADAB
Limonene7705-14-8AAAACBDDCC
Linoleic acid60-33-3ABAABBDBBA
Linseed oil—AAAAAADAAA
Lithium chloride7447-41-8AAAAAAAAAA
Lubricant—ABAABBDDBB
Magnesium acetate16674-78-5ADAADDDDDC
Magnesium chloride7786-30-3AAAAAAAAAA
Magnesium hydroxide1309-42-8AAAACBADDC
Magnesium sulfate7487-88-9AAAAAAAAAA
Maleic acid110-16-7AAAADDDCCB
Malic acid6915-15-7AAAAAABBAA
Mercury7439-97-6AAAAAAAAAA
Metaldehyde108-62-3ADAACCABAD
Methane74-82-8AAAAAADDBB
Methanol67-56-1ACAABAABBA
Methoxypropyl acetate108-65-6ADAADDABDC
Methyl acetate79-20-9ADAADDBDDD
Methyl acrylate96-33-3ADAADDCDDD
Methyl acrylate96-33-3ADAADDBDDD
Methyl benzoate93-58-3AAAADDDDAA
Methyl thiocyanate556-64-9AAAADDBDCB
Methylamine74-89-5ADAADDBDDB
Methylaniline100-61-8ABAADDDDDB
Methylated spirit—AAAAAAAAAA
Methylcellulose9004-67-5ABAABBBBDB
Methylpentane107-83-5AAAADDDDCC
MIL-F-25558 (RJ-1)—AAAAAADDAA
MIL-F-25576 (RP1)—AAAAAADDAA
MIL-F-25656 (JP-6)—AAAAAADDBC
MIL-F-81912 (JP-9)—AAAACCDDBC
MIL-S-3136 Type I—AAAAAADDAC
MIL-S-3136 Type II—AAAABBDDBC
MIL-S-3136 Type III—AAAABBDDBC
Milk—AAAAAABBBA
Mineral oil8020-83-5AAAAAACBAA
Molybdenum disulfide1317-33-5AAAAAADBAA
Monochloramine10599-90-3ADAAAAADDC
Morpholine110-91-8AAAADDBDDD
Motor gasoline8006-61-9AAAABCDDAC
Mustard gas505-60-2AAAABBCAAB
Naphtha8030-30-6AAAABBDDBB
Naphthenic acids1338-24-5AAAABCDDAA
Natural gas68410-63-9AAAAAADDBB
Neon7440-01-9AAAAAAAAAA
Nickel acetate373-02-4ADAABBADDD
Nickel chloride7718-54-9AAAAAAAAAA
Nickel sulfate7786-81-4AAAAAAAAAA
Nitric acid7697-37-2ABAADDDDCB
Nitrobenzene98-95-3ABAADDDDDA
Nitroethane79-24-3ADAADDCDDB
Nitrogen7727-37-9AAAAAAAAAA
Nitrogen dioxide10102-44-0ADAADDDDDC
Nitromethane75-52-5ADAADDCDDC
Nitropropane108-03-2ADAADDBDDB
Nonane111-84-2AAAACBDDDA
Octadecane112-88-9AAAAAADDAA
Octanal124-13-0ADAAAADAAD
Octane111-65-9AAAACBDDBB
Octanol111-87-5AAAABBADBA
Octyl acetate112-14-1ADAADDCCDD
Oleic acid112-80-1AAAACDDDBA
Oleyl alcohol143-28-2AAAAAAAAAA
Olive oil8001-25-0AAAAAABAAA
Oxalic acid144-62-7AAAABBABAA
Oxygen (<100°C)7782-44-7AAAABAABAA
Oxygen (liquid)7782-44-7ADAADDDDDD
Ozone10028-15-6AAAADDAAAA
Paint thinner—ABAADDDDCB
Palmitic acid57-10-3AAAABABDAA
Paraffin8002-74-2AAAAAADAAB
Paraldehyde123-63-7ADAADDADDD
Peanut oil8002-03-7AAAAAACAAA
Pentane109-66-0AAAAAADDCA
Pentanol71-41-0ABAABBADAA
Peracetic acid79-21-0ABAACCABBA
Perchloric acid7601-90-3AAAADDBDAB
Petrol64742-82-1AAAAAADDBB
Petroleum jelly8009-03-8AAAAAADDAA
Phenetole103-73-1ADAADDDDDD
Phenyl acetate122-79-2ADAADDBDDC
Phorone504-20-1ADAADDBDDD
Phosphoric acid7664-38-2ABAADDBDCB
Phosphorus trichloride7719-12-2AAAADDADAA
Phthalic acid88-99-3ABAACCBDDB
Pickling solution13445-49-3ACAADDCDDD
Pine oil8002-09-3AAAABBDDAA
Piperidine110-89-4ADAADDDDDD
Potassium acetate127-08-2ADAACDADDA
Potassium bromide7758-02-3AAAAAAADCA
Potassium chloride7447-40-7AAAAAAAAAA
Potassium cyanide151-50-8AAAAAAAAAA
Potassium dichromate7778-50-9AAAAAAAAAA
Potassium hydrogen sulfate7646-93-7AAAAAAADCA
Potassium hydroxide1310-58-3ADAADDCDDA
Potassium nitrate7757-79-1AAAAAAAAAA
Potassium sulfate7778-80-5AAAAAAAAAA
Potassium sulfide1312-73-8AAAAAAADCA
Propane74-98-6AAAAAADDBA
Propanol71-23-8AAAABAABAA
Propyl acetate109-60-4ADAADDADDD
Propyl nitrate627-13-4ADAADBCDDD
Propylamine107-10-8ADAADDDDDB
Pyridine110-86-1ADAADDBDDC
Pyroligneous acid74113-74-9ADAADDBDDD
Pyrrole109-97-7ADAADDCDDC
Rapeseed oil8002-13-9AAAAAABCAA
Resorcinol108-46-3AAAADDDDDA
Sal ammoniac12125-02-9AAAAAAACBA
Salicylic acid69-72-7AAAAAAAAAA
Salt water—AAAAAAAAAA
Silicate ester—AAAACCDDAA
Silicone grease—ABAAAAACBA
Silicone oil68083-14-7ABAAAAADBA
Silver nitrate7761-88-8AAAAAAAAAA
Skydrol 500—ACAADDACCA
Skydrol 7000—ACAADDACCA
Soap solutions—AAAAAAAAAA
Sodium acetate127-09-3ADAACDADDB
Sodium benzoate532-32-1AAAAAAAAAA
Sodium borate1330-43-4AAAAAAAAAA
Sodium carbonate497-19-8AAAAAAAAAA
Sodium chlorate7775-09-9AAAABAAAAA
Sodium chloride7647-14-5ABAAAAAAAA
Sodium cyanide143-33-9AAAAAAAAAA
Sodium fluoride7681-49-4AAAAAAABAA
Sodium hydroxide1310-73-2AAAACBABBA
Sodium hypochlorite7681-52-9AAAACBBBBA
Sodium nitrate7631-99-4AAAABAADAA
Sodium nitrite7632-00-0AAAABAADAA
Sodium peroxide1313-60-6AAAABBADAA
Sodium salts151-21-3AAAAAAAAAA
Sodium sulfate7757-82-6AAAADDBCAA
Soybean oil8001-22-7AAAAAACAAA
Spirits—AAAAAAAAAA
Starch9005-84-9AAAAAAAAAA
Steam (above 120 to 200 °C)—ADAADDCDDD
Steam (up to 120 °C)—AAAADDACDA
Stearic acid57-11-4ABAACBCCBA
Succinic acid110-15-6AAAAAAAAAA
Sucrose solution57-50-1AAAAAAAAAA
Sulfur7704-34-9AAAADDCCCA
Sulfur dichloride10025-67-9AAAADDDCBA
Sulfur dioxide (dry)7446-09-5ADAADCABBB
Sulfur dioxide (liquid)7446-09-5ADAADCBBBB
Sulfur hexafluoride2551-62-4ABAABBABBB
Sulfur trioxide7446-11-9AAAADDCCBB
Sulfuric acid (aqueous)7664-93-9AAAACCBDCA
Sulfuric acid (concentrated)7664-93-9AAAADDCDDA
Tallow61789-97-7AAAAAABBAA
Tannic acid1401-55-4AAAABBABAA
Tartaric acid133-37-9AAAAAABAAA
Terpineol (alpha)98-55-5AAAACCCDAA
Tetrabromoethane79-27-6AAAADDDDCC
Tetrachloroethane79-34-5AAAADDDDCD
Tetrachloroethene127-18-4AAAADDDDCD
Tetrafluoroboric acid16872-11-0ABAAAAABAA
Tin(II) chloride7772-99-8AAAAAAABAA
Titanium tetrabutanolate5593-70-4AAAABBABAA
Toluene108-88-3ADAADDDDDD
Transformer oil—AAAAAADBAA
Triacetin102-76-1ADAABBAADD
Trichloroacetic acid76-03-9ACAABBBCCC
Trichloroethane71-55-6ABAADDDDBD
Triethylamine121-44-8ACAACCDDCB
Triethylborane97-94-9AAAADDCDDD
Trimethylpentane540-84-1AAAAAADDBB
Trimethylpentene25167-70-8AAAACCDDCC
Turpentine8006-64-2AAAAAADDBB
Urea57-13-6AAAABBADDA
Vegetable oils—AAAAAACBAA
Vinegar—AAAABBAABB
Wastewater—AAAAAAABAA
Water7732-18-5AAAAAAAAAA
White oil—AAAAAADDAA
Xenon7440-63-3AAAAAAAAAA
Xylene95-47-6ABAADDDDAD
Xylidine1300-73-8ADAACCDDDA
Zeolites1318-02-1AAAAAAAAAA
Zinc acetate557-34-6ADAADCBDDC
Zinc carbonate3486-35-9AAAAAAAAAA
Zinc chloride7646-85-7AAAAAAAAAA
Zinc sulfate7733-02-0AAAAAAAAAA
No medium found. Write to us at info@nh-oring.de.

Rating: A excellent, B good, C moderate, D poor. Reference values at room temperature; concentration, temperature and exposure time can change the resistance. 430 media, 10 materials compared.

Disclaimer

The resistance data are non-binding reference values at room temperature. The actual suitability depends on concentration, temperature, pressure and exposure time and may differ for media combinations. We accept no liability for accuracy and suitability in the specific case. Please verify material suitability on your own responsibility and contact us in case of doubt. Liability for damages arising from the use of this data is excluded to the extent permitted by law.

Hot-water and steam limits at a glance

Which material withstands how much — from EPDM through FKM to FFKM (ECOLAST), separated by hot water and steam.

To the hot-water and steam table →
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