| PSMA | Physical Sunscreen Manufacturers Association | In English | → Associations |
| PSSA | Programme Spécial pour la Sécurité Alimentaire = SPFS | Special Programme for Food Security | In English |
In French | → Agricultural sciences → Food technology |
| PVC | Polyvinyl Chloride | In English | → 665 |
| PVDF | Polyvinylidenefluoride | In English | → Plastic industry → Chemicals → Chemistry |
| QUAS | Quaternisation of Starch Producers Association | In English | → Associations |
| RAADIS | Réseau pour une Agriculture et une Alimentation Durables Inventives et Solidaires | In French | → Organizations and associations → Agricultural sciences → Food technology |
| RAG | Rohöl-Aufsuchungs Aktiengesellschaft | In German | |
| RARE | Réseau de recherche et d'innovation technologique 'Alimentation Référence Europe' | In French | → Nutrition → Food technology |
| RCO | Rencontres Chimiques de l’Ouest | In French | → Specialized or (poly)technical colleges → Chemistry |
| REACH | Registration, Evaluation and Authorization of Chemicals | In English | → Chemicals |
| RFDA | Regional Food Distribution Association | In English | → Associations → Food technology |
| RGC | Roanoke Gas Company | In English | |
| RISCPT | Registre International des Substances Chimiques Potentiellement Toxiques | In French | → Chemistry |
| RoHS | Restriction of the use of certain Hazardous Substances (in electrical and electronic equipment) | In English | → Chemicals → Electrical engineering → Electronics |
| RTAW | Rockwell Tandem Arc Weld | In English | → Metallurgy |
| SBBE | Sciences de la Beauté et du Bien-Être | In French | → Medicine |
| ScM | Scripta Metallurgica | In Latin | → Serial publications, periodicals → Metallurgy |
| ScMM | Scripta Metallurgica et Materialia | In Latin | → Serial publications, periodicals → Metallurgy → 620 |
| SEB | Société d'Embouteillage de Bourgogne | In French | → Beverage industry |
| SFA | Swedish Foundry Association | In English | → Associations → Metallurgy |
| SFC | Société Française de Céramique | In French | → Organizations and associations → 666 |
| SFU | Société des Fonderies d’Ussel | In French | → Metallurgy |
| SIRES | Sindicato da Indústria de Resinas Sintéticas | In Portuguese | → Organizations and associations |
| SJMet | Scandinavian Journal of Metallurgy | In English | → Serial publications, periodicals → Metallurgy |
| SMZ | Schweizerischer Fachverband metallverarbeitender Zulieferer | In German | → Organizations and associations → Metallurgy |
| SNCO | Syndicat National des Courtiers en Graines Oléagineuses, Huiles et Corps Gras | In French | → Organizations and associations → Trade → Agricultural sciences → Food technology |
| SNCPL | Syndicat National des Courtiers en Produits Laitiers | In French | → Organizations and associations → Trade → Food technology |
| SNFS | Syndicat National des Fabricants de Sucre | In French | → Organizations and associations → Food technology |
| SNPAA | Syndicat National des Producteurs d’Alcool Agricole | In French | → Organizations and associations → Agricultural sciences |
| SOGEP | Société Genevoise des Pétroles | In French | → 665 |
| SOGITS | Senior Officials Group on Information Technology Standardization | In English | → Computer science → Standardization → Food technology |
| SPFS | Special Programme for Food Security = PSSA (look above) |
In English | → Agricultural sciences → Food technology |
| SS | Stainless Steel | In English | → Metallurgy |
| SSMS | Stockholm Single Malt Society = SSMS | Stockholms Single Malt Sällskap | In Swedish |
In English | → Organizations and associations → Beverage industry |
| SSMS | Stockholms Single Malt Sällskap = (look above) |
In Swedish | → Organizations and associations → Beverage industry |
| STLO | Science et Technologie du Lait et de l'Oeuf | In French | → Food technology |
| STPA | Sciences et Technologies du Produit Agroalimentaire | In French | → Agricultural sciences → Food technology |
| SuCT | Surface and Coatings Technology | In English | → Serial publications, periodicals → 620 |
| SW | Spot Weld | In English | → Metallurgy |
| SynMe | Synthetic Metals | In English | → Serial publications, periodicals → Chemistry → Metallurgy |
| SZA | Schweißtechnische Zentralanstalt | In German | → Metallurgy |
| TAPIR | Transformateur d'Alimentation Provisoire Intégré sur Remorque | In French | → Electrical engineering → Food technology |
| TBTO | Tributyltin Oxide | In English | |
| TCFN | Total Compagnie Française de Navigation | In French | → Transport and postal services → 665 |
| TEOS | Tetraethyl Orthosilicate = TEOS | Tetraethylorthosilikat | In German |
In English | |
| TEOS | Tetraethylorthosilikat = (look above) |
In German | |
| TEP | Tonne Équivalent Pétrole | In French | → Energy economics → 665 |
| TIPP | Taxe Intérieure sur les Produits Pétroliers | In French | → Taxes, duties → 665 → Transport and postal services |
| TMD | Transport de Matières Dangereuses | In French | → Transport and postal services → Chemicals |
| TMP | Thermo-Mécanique et Plasticité | In French | → 620 → Mechanical engineering |
| TNT | ترینیتروتولوئن = TNT | Trinitrotoluol | In German = TNT | Trinitrotoluè | In Catalan = TNT | Trinitrotoluen | In Czech = TNT | Trinitrotoluene | In English = TNT | Trinitrotolueno | In Esperanto = TNT | Trinitrotolueno | In Spanish = TNT | Trinitrotoluenori | In Basque = TNT | Trinitrotoluène | In French = TNT | Trinitrotoluene | In Italian = TNT | Trinitrotoluolas | In Lithuanian = TNT | Trinitrotolueen | In Dutch = TNT | Trinitrotoluen | In Nynorsk = TNT | Trinitrotoluen | In Norwegian = TNT | Trinitrotolueno | In Portuguese = TNT | Trinitrotoluen | In Romanian = TNT | Тринитротолуол | In Russian = TNT | Trinitrotoluen | In Slovenian = ТНТ | Тринитротоулен | In Serbian = TNT | ทีเอ็นที | In Thai = TNT | Trinitrotoluen | In Turkish = ТНТ | Тринітротолуол | In Ukrainian |
In Persian | → Chemicals → Military engineering |
| TNT | Trinitrotolueen = ТНТ (look above) |
In Dutch | → Chemicals → Military engineering |
| TNT | Trinitrotoluen = ТНТ (look above) |
In Norwegian | → Chemicals → Military engineering |
| TNT | Trinitrotoluen = ТНТ (look above) |
In Nynorsk | → Chemicals → Military engineering |
| TNT | Trinitrotoluè = ТНТ (look above) |
In Catalan | → Chemicals → Military engineering |
| TNT | Trinitrotoluen = ТНТ (look above) |
In Czech | → Chemicals → Military engineering |
| TNT | Trinitrotoluolas = ТНТ (look above) |
In Lithuanian | → Chemicals → Military engineering |
| TNT | Trinitrotoluene = ТНТ (look above) |
In Italian | → Chemicals → Military engineering |
| TNT | Trinitrotoluène = ТНТ (look above) |
In French | → Chemicals → Military engineering |
| TNT | Trinitrotoluene = ТНТ (look above) |
In English | → Chemicals → Military engineering |
| TNT | Trinitrotoluenori = ТНТ (look above) |
In Basque | → Chemicals → Military engineering |
| TNT | Trinitrotolueno = ТНТ (look above) |
In Spanish | → Chemicals → Military engineering |
| TNT | Trinitrotolueno = ТНТ (look above) |
In Esperanto | → Chemicals → Military engineering |
| TNT | ทีเอ็นที = ТНТ (look above) |
In Thai | → Chemicals → Military engineering |
| TNT | Trinitrotolueno = ТНТ (look above) |
In Portuguese | → Chemicals → Military engineering |
| TNT | Trinitrotoluen = ТНТ (look above) |
In Romanian | → Chemicals → Military engineering |
| TNT | Тринитротолуол = ТНТ (look above) |
In Russian | → Chemicals → Military engineering |
| TNT | Trinitrotoluen = ТНТ (look above) |
In Slovenian | → Chemicals → Military engineering |
| TNT | Trinitrotoluen = ТНТ (look above) |
In Turkish | → Chemicals → Military engineering |
| TNT | Trinitrotoluol = ТНТ (look above) |
In German | → Chemicals → Military engineering |
| TPC | Turkish Petroleum Company | In English | → 665 |
| UDMH | Unsymmetrical Dimethylhydrazine | In English | |
| UDMH/H | Unsymmetrical Dimethylhydrazine Hydrazine Blend | In English | |
| UFCC | Union Française du Commerce Chimique | In French | → Organizations and associations → Trade → Food technology |
| UIC | Union des Industries Chimiques (www.uic.fr) | In French | → Organizations and associations |
| UIMM | Union des Industries et Métiers de la Métallurgie (www.uimm.fr) | In French | → Organizations and associations → Metallurgy |
| UNCGFL | Union Nationale de Commerce en Gros de Fruits et Légumes | In French | → Organizations and associations → Trade → Food technology |
| UPGCAF | Union Professionnelle des Grossistes en Confiserie et Alimentation Fine | In French | → Organizations and associations → Food technology |
| USMAG | Union Syndicale des Marchands d'Abats en Gros | In French | → Organizations and associations → Food technology |
| USWA | United Steelworkers of America | In English | → Organizations and associations → Labour, labour economics → Metallurgy |
| VALORIAL | VALOrisation pour la Recherche et l'Innovation ALimentaire | In French | → Agricultural sciences → Food technology |
| VDA | Vapor-Deposited Aluminum | In English | → Metallurgy |
| VFG | Versuchsanstalt für Getreideverarbeitung (www.vfg.or.at) | In German | → Research institutes → Agricultural sciences → Food technology |
| VGL | Vereniging van Grootwinkelbedrijven in Levensmiddelen | In Dutch | → Organizations and associations → Food technology → Trade |
| VOG | Verein Österreichischer Gießereifachleute | In German | → Metallurgy |
| VPPAW | Variable-Polarity Plasma Arc Welding | In English | → Metallurgy |
| VSG | Verein Slowakischer Gießereifachleute | In German | → Organizations and associations → Metallurgy |
| WBMS | World Bureau of Metal Statistics | In English | → Organizations and associations → Metallurgy |
| WFC | World Foundry Congress | In English | → Congresses → Metallurgy |
| WFNA | White Fuming Nitric Acid | In English | |
| WGSU | Water-Glycol Service Unit | In English | |
| YAG | Yttrium Aluminum Garnet | In English | → Metallurgy |
| ZCHFP | Zväz chemického a farmaceutického priemyslu Slovenskej republiky (www.zchfp.sk) | In Slovak | → Associations → Pharmacology, toxicology |
| ZMetl | Zeitschrift fur Metallkunde | In German | → Serial publications, periodicals → Metallurgy |
| ZOPA | Zinc Oxide Producers Association | In English | → Associations → Chemicals → Metallurgy |
| ZWer | Zeitschrift Werkstofftechnik | In German | → Serial publications, periodicals → 666 |
| ГИ | Гликемијски индекс = GI | Glycemic Index | In English = GI | Glykemický index | In Czech = GI | Glykæmisk indeks | In Danish = GI | Glykämischer Index | In German = GI | Glükeemiline indeks | In Estonian = GI | Glykeeminen indeksi | In Finnish = IG | Índice glicêmico | In Portuguese = GI | Glisemik indeks | In Turkish |
In Serbian | → Nutrition → Food technology |
| ЕОВС | Европейската общност за въглища и стомана = EKSF | Europæiske Kul- og Stålfællesskab | In Danish = ESUO | Evropské společenství uhlí a oceli | In Czech = EZUČ | Europska zajednica za ugljen i čelik | In Croatian = CECA | Comunidad Europea del Carbón y del Acero | In Spanish = CECA | Communauté Européenne du Charbon et de l'Acier | In French = EGKS | Europese Gemêenschap voo Kooln en Stoal | In Vlaams = ECSC | European Coal and Steel Community | In English = CECA | Comunitat Europea del Carbó i de l'Acer | In Catalan = EGKS | Europäische Gemeinschaft für Kohle und Stahl | In German = CECA | Comunidade Europea do Carbón e do Aceiro | In Galician = CECA | Comunità Europea del Carbone e dell'Acciaio | In Italian = EWWiS | Europejska Wspólnota Węgla i Stali | In Polish = CECA | Comunautat Europèa del Carbon e de l'Acièr | In Occitan = EKSF | Det europeiske kull- og stålfellesskap | In Norwegian = EGKS | Europese Gemeenschap voor Kolen en Staal | In Dutch = ESZAK | Európai Szén- és Acélközösség | In Hungarian = CECA | Comunidade Europeia do Carvão e do Aço | In Portuguese = CECO | Comunitatea Europeană a Cărbunelui şi Oţelului | In Romanian = ЕОУС | Европейское объединение угля и стали | In Russian = ESUO | Európske spoločenstvo pre uhlie a ocel | In Slovak = EHYT | Euroopan hiili- ja teräsyhteisö | In Finnish = EKSG | Europeiska kol- och stålgemenskapen | In Swedish = EAPB | Europos anglių ir plieno bendrija | In Lithuanian |
In Bulgarian | → International relations → International economic cooperation → Mining → Metallurgy |
| ЕОУС | Европейское объединение угля и стали = ЕОВС, EKSF, ESUO, EZUČ, CECA, EGKS, ECSC, EWWiS, ESZAK, CECO, EHYT, EKSG, EAPB (look above) |
In Russian | → International relations → International economic cooperation → Mining → Metallurgy |
| ОПЕК | Организација на земји извознички на нафта и нафтени деривати = OPEC | Organization of the Petroleum Exporting Countries | In English = OPEP | Organisation des Pays Exportateurs de Pétrole | In French = OPEC | Organization of Petroleum Exporting Countries | In English = OPEL | Organizaĵo de Petrol-Eksportaj Landoj | In Esperanto = OPEP | Organização dos Países Exportadores de Petróleo | In Portuguese = OPEP | Organización de Países Esportadores de Petroleu | In Asturian = OPEP | Organización de Países Exportadores de Petróleo | In Spanish = OPEP | Organització de Països Exportadors de Petroli | In Catalan |
In Macedonian | → Organizations and associations → Mining → 665 |
| ТНТ | Тринітротолуол = TNT (look above) |
In Ukrainian | → Chemicals → Military engineering |
| ТНТ | Тринитротоулен = TNT (look above) |
In Serbian | → Chemicals → Military engineering |
| م ش ف | مجموعة المكتب الشريف للفوسفاط = OCP | Office Chérifien des Phosphates | In French |
In Arabic | → Mining |