--- title: "Blog — Master Services" description: "Technical articles from Master Services on tank tightness testing, Hermeticity certification (Fire Department) and fuel-station maintenance in Panama." url: "https://masterservices.org/en/blog/" language: "en" --- Field knowledge # Technical notes for safer stations Practical guidance from the team that builds, tests, and maintains fuel infrastructure across Panama. [![Hydrocarbon containment and remediation work in the field](https://masterservices.org/images/blog/remediacion-derrames-hero.webp)](https://masterservices.org/en/blog/remediacion-derrames-combustible-panama/) Latest analysisSeptember 1, 2026 ## [Fuel spill at a service station in Panama: what the rules require in the first hour and what comes next](https://masterservices.org/en/blog/remediacion-derrames-combustible-panama/) What Panamanian rules require after a fuel spill at a station: one-hour report to MiAmbiente, soil limits, remediation plan and deadlines. [Read article](https://masterservices.org/en/blog/remediacion-derrames-combustible-panama/) Technical archive ## Technical archive Explore our field notes by operational topic. 25 articles [ ![](https://masterservices.org/images/editorial/university-engraving-420.webp) Ethanol E10June 23, 2026 ### Ethanol blends in Panama: verified official status The resolution suspended planned implementation and voided the previous schedule; no new active date was located as of September 4, 2026. ](https://masterservices.org/en/blog/suspension-proyecto-ley-443-bioetanol-panama/) [ ![](https://masterservices.org/images/editorial/tightness-engraving-420.webp) Ethanol E10June 16, 2026 ### Tightness and an E10 transition: how to define a baseline A prior evaluation can document condition, but any repeat and its timing should follow scope, manufacturer guidance and evidence—not a universal rule. ](https://masterservices.org/en/blog/hermeticidad-antes-despues-e10-panama/) [ ![](https://masterservices.org/images/editorial/compatibility-engraving-420.webp) Ethanol E10June 9, 2026 ### Assessing stations for ethanol blends: what to document today The planned implementation is suspended; useful work now is component inventory and configuration-level verification against manufacturer documentation. ](https://masterservices.org/en/blog/adaptacion-estaciones-combustible-e10-ley-443-panama/) [ ![](https://cdn.sanity.io/images/ubvk0fpt/production/476ffdbc43279843272920a16744c35ef803b6b8-825x1100.webp?w=420&h=315&fit=crop&auto=format&q=85) Ethanol E10May 26, 2026 ### Wayne, Gilbarco and Tokheim for E10: an evidence-based comparison How to compare dispensers by identification and documentation without declaring entire generations compatible or incompatible. ](https://masterservices.org/en/blog/comparativa-dispensadores-e10-wayne-gilbarco-tokheim-panama/) [ ![](https://masterservices.org/images/editorial/filtration-engraving-420.webp) Ethanol E10May 19, 2026 ### Phase separation in ethanol-blended gasoline: signs and safe response What it means, what information to collect and when to stop dispensing and escalate to qualified personnel, without universal water or temperature values. ](https://masterservices.org/en/blog/separacion-fase-gasolina-e10-panama/) [ ![](https://masterservices.org/images/editorial/filtration-engraving-420.webp) Ethanol E10May 12, 2026 ### Dispenser filters for ethanol-blended fuel in Panama: specs, models, and when to change them How to select and maintain dispenser filters for ethanol blends using product, function, flow, connection, manufacturer documentation and actual condition, without prescribing one universal model or interval. ](https://masterservices.org/en/blog/filtros-dispensador-combustible-etanol-panama/) [ ![](https://masterservices.org/images/editorial/dispenser-engraving-420.webp) Ethanol E10April 28, 2026 ### Wayne dispensers and E10: how to verify a specific unit Brand alone does not establish compatibility: identify model, configuration and product number before deciding to keep, consult or replace. ](https://masterservices.org/en/blog/bombas-wayne-compatibilidad-e10-panama/) [ ![](https://masterservices.org/images/editorial/compatibility-engraving-420.webp) Ethanol E10April 14, 2026 ### E10 assessment guide in six verifiable steps A component-level inventory, evidence and decision process without assuming an active schedule or universal replacements. ](https://masterservices.org/en/blog/guia-adecuacion-etanol-e10-seis-pasos/) [ ![](https://cdn.sanity.io/images/ubvk0fpt/production/7fe76674a2f1bf11252c5a650387ca476eaf90f3-1200x1600.webp?w=420&h=315&fit=crop&auto=format&q=85) Tightness testingMarch 24, 2026 ### Underground fuel tank installation guide (PEI RP100) How to control design, receiving, excavation, anchoring, backfill, piping, testing and closeout for an underground tank system, using PEI RP100 and local requirements as separate references. ](https://masterservices.org/en/blog/instalacion-tanques-subterraneos-combustible-pei-rp100/) [ ![](https://masterservices.org/images/editorial/dispenser-engraving-420.webp) MaintenanceMarch 10, 2026 ### Fuel-station maintenance in Panama: scope, frequency and evidence How to decide what to do and when based on equipment, condition, manufacturer instructions and applicable requirements. ](https://masterservices.org/en/blog/mantenimiento-estaciones-combustible-panama/) [ ![](https://masterservices.org/images/editorial/containment-engraving-420.webp) EnvironmentalFebruary 17, 2026 ### Sumps and spill buckets at fuel stations: inspection, draining, and spill prevention How to distinguish, inspect and document dispenser sumps, tank sumps and spill buckets; what liquid findings mean and how to set frequencies by equipment, condition and event. ](https://masterservices.org/en/blog/sumps-spill-buckets-estaciones-combustible-panama/) [ ![](https://masterservices.org/images/editorial/environment-engraving-420.webp) EnvironmentalJanuary 27, 2026 ### Oil/water separator (API separator) at fuel stations: operation, cleaning, and MIAMBIENTE compliance How to inspect and maintain an oil-water separator based on design, loading, levels and its manual, without treating API 421 or a generic interval as local certification. ](https://masterservices.org/en/blog/separador-hidrocarburos-api-mantenimiento-panama/) [ ![](https://masterservices.org/images/editorial/calibration-engraving-420.webp) DispensersJanuary 13, 2026 ### How to tell if a dispenser is miscalibrated: operational signs and the prover test How to distinguish operational indications from metrological verification and document dispenser testing under Panama’s current technical regulation. ](https://masterservices.org/en/blog/dispensador-descalibrado-senales-probador-panama/) [ ![](https://masterservices.org/images/editorial/calibration-engraving-420.webp) DispensersDecember 9, 2025 ### Dispenser calibration in Panama: evidence and metrological control What Acodeco verifies, which technical regulation MICI identifies and how to set frequency without inventing a universal schedule. ](https://masterservices.org/en/blog/calibracion-dispensadores-combustible-panama/) [ ![](https://masterservices.org/images/editorial/atg-engraving-420.webp) MaintenanceNovember 18, 2025 ### Automatic Tank Gauging (ATG) alarms: how to interpret Veeder-Root, INCON and OPW How to respond to an ATG alarm without guessing: preserve the exact message, identify its channel and asset, verify configuration, and escalate under the manual, observed risk and site procedure. ](https://masterservices.org/en/blog/alarmas-atg-veeder-root-incon-opw-panama/) [ ![](https://masterservices.org/images/editorial/tightness-engraving-420.webp) Tightness testingOctober 28, 2025 ### What to do after an adverse tightness-test result A sequence for control, scope review, diagnosis and documentation without treating the result as a volumetric reading or promising a repair. ](https://masterservices.org/en/blog/reprobaste-hermeticidad-sne-protocolo-panama/) [ ![](https://masterservices.org/images/editorial/tightness-engraving-420.webp) Tightness testingOctober 7, 2025 ### MESA 2-D, SIR and tracer gas: how to compare methods without conflating them A decision framework based on detection principle, scope, conditions and deliverable; no method name alone guarantees regulatory acceptance. ](https://masterservices.org/en/blog/mesa-2d-sir-tracer-gas-comparacion-panama/) [ ![](https://masterservices.org/images/editorial/tightness-engraving-420.webp) Tightness testingSeptember 16, 2025 ### MESA 1-D and MESA 2-D: how to confirm the applicable method Why the commercial name is not enough: scope must be confirmed against the exact method listing, system and site conditions. ](https://masterservices.org/en/blog/mesa-1d-vs-mesa-2d-cual-aplica/) [ ![](https://masterservices.org/images/editorial/tightness-engraving-420.webp) Tightness testingAugust 26, 2025 ### How to prepare for a tightness test with a clear scope Information, coordination and conditions to confirm before the technical visit, without promising a result or applying universal requirements. ](https://masterservices.org/en/blog/preparar-prueba-hermeticidad-tanques-panama/) [ ![](https://masterservices.org/images/editorial/tightness-engraving-420.webp) Tightness testingJuly 29, 2025 ### Tightness testing in Panama: method, scope and procedure What a test evaluates, how to interpret published MESA 2-D performance and why the technical report does not replace DINASEPI’s decision. ](https://masterservices.org/en/blog/pruebas-hermeticidad-sne-panama/) [ ![](https://cdn.sanity.io/images/ubvk0fpt/production/a3eaa0400be5e85d5d68906418fbe3507ed622b7-1000x750.webp?w=420&h=315&fit=crop&auto=format&q=85) ComplianceJuly 1, 2025 ### Technical documentation checklist for SNE filings in Panama How to organize the technical file for a BCBRP/DINASEPI fuel-facility inspection, separate operator records from provider deliverables, and verify current requirements. ](https://masterservices.org/en/blog/checklist-documentacion-sne-panama/) [ ![](https://masterservices.org/images/editorial/tightness-engraving-420.webp) Tightness testingJune 3, 2025 ### How to assess a tightness-testing provider in Panama Verifiable criteria for comparing method, scope, documentation and responsibilities without confusing a technical test with the authority’s decision. ](https://masterservices.org/en/blog/como-elegir-empresa-hermeticidad-panama/) [ ![](https://cdn.sanity.io/images/ubvk0fpt/production/b2558fc4e16e8da12ae7498531de5d45ae04643a-1094x821.webp?w=420&h=315&fit=crop&auto=format&q=85) ComplianceMay 6, 2025 ### Preventive tank maintenance: a condition- and equipment-based program How to build a baseline, separate inspection from testing and define tasks and frequencies from applicable documentation. ](https://masterservices.org/en/blog/guia-de-mantenimiento-preventivo-para-tanques-de-almacenamiento-de-combustible/) [ ![](https://masterservices.org/images/editorial/university-engraving-420.webp) MaintenanceApril 8, 2025 ### Scope- and findings-based preventive-maintenance checklist A structure for walkthroughs, technical visits and triggers without turning external frequencies into local obligations. ](https://masterservices.org/en/blog/lista-verificacion-mantenimiento-preventivo-estaciones/) [ ![](https://cdn.sanity.io/images/ubvk0fpt/production/7449ce0b5680508c5176b7626edadd2a53d6f248-750x1000.webp?w=420&h=315&fit=crop&auto=format&q=85) MaintenanceMarch 11, 2025 ### Fuel-station maintenance: how to build a defensible program Inventory, criticality, sources, execution and closeout: five layers for deciding tasks and intervals without copying a universal recipe. ](https://masterservices.org/en/blog/mantenimiento-estaciones-combustible-necesitas-saber/) ## Structured data ```json [ { "@context": "https://schema.org", "@graph": [ { "@type": [ "LocalBusiness", "ProfessionalService" ], "@id": "https://masterservices.org/#localbusiness", "name": "Master Services", "legalName": "Master S.A.", "url": "https://masterservices.org/", "logo": "https://masterservices.org/images/logo-master-services.svg", "image": "https://masterservices.org/images/hero-oficina.jpg", "email": "info@masterservices.org", "telephone": "+507 274-0836", "description": "Panamanian company founded in 1978 that builds and maintains fuel stations. It performs MESA 2-D underground-tank tightness testing, prepares technical documentation for applicable Fire Department (DINASEPI) procedures and assesses component-level E10 compatibility. Member of the Petroleum Equipment Institute (PEI).", "foundingDate": "1978", "slogan": "Building and maintaining fuel stations in Panama since 1978", "address": { "@type": "PostalAddress", "streetAddress": "Edificio Grupo Master, Villa Lucre", "addressLocality": "Ciudad de Panamá", "addressRegion": "Panamá", "addressCountry": "PA" }, "geo": { "@type": "GeoCoordinates", "latitude": 9.0360833, "longitude": -79.4835587 }, "areaServed": [ { "@type": "Country", "name": "Panamá" }, { "@type": "AdministrativeArea", "name": "Bocas del Toro", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Chiriquí", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Coclé", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Colón", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Darién", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Herrera", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Los Santos", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Panamá", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Panamá Oeste", "containedInPlace": { "@type": "Country", "name": "Panamá" } }, { "@type": "AdministrativeArea", "name": "Veraguas", "containedInPlace": { "@type": "Country", "name": "Panamá" } } ], "openingHoursSpecification": [ { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday" ], "opens": "07:00", "closes": "16:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Saturday", "opens": "07:00", "closes": "13:00" } ], "contactPoint": { "@type": "ContactPoint", "telephone": "+507 274-0836", "email": "info@masterservices.org", "contactType": "customer service", "areaServed": "PA", "availableLanguage": [ "es", "en" ] }, "knowsAbout": [ "Fuel station construction", "Service station maintenance", "MESA 2D tightness testing", "Underground tank tightness testing", "Technical support for Fire Department (DINASEPI) hydrocarbon certification procedures", "Fuel spill containment and repair", "Storage tank installation and calibration", "Fuel dispenser calibration", "Ethanol E10 readiness", "SNE", "PEI", "NFPA 30/30A", "OSHA" ], "memberOf": { "@type": "Organization", "name": "Petroleum Equipment Institute (PEI)", "url": "https://pei.org/" }, "hasOfferCatalog": { "@type": "OfferCatalog", "name": "Fuel station services", "itemListElement": [ { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Support for Fire Department certification", "url": "https://masterservices.org/en/certificacion-sne/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "E10 compatibility assessment", "url": "https://masterservices.org/en/etanol-e10/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "MESA 2D tightness test", "url": "https://masterservices.org/en/mesa-2d/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Fuel tank emptying", "url": "https://masterservices.org/en/vaciado-de-tanques/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Dispenser maintenance", "url": "https://masterservices.org/en/mantenimiento-surtidores/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Dispenser calibration", "url": "https://masterservices.org/en/calibracion-dispensadores/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Service station construction", "url": "https://masterservices.org/en/construccion-estaciones-combustible/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Fuel station maintenance", "url": "https://masterservices.org/en/mantenimiento-estaciones-combustible/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Fuel spill containment and repair", "url": "https://masterservices.org/en/remediacion-derrames-combustible/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Electrical maintenance", "url": "https://masterservices.org/en/mantenimiento-electrico/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Paving", "url": "https://masterservices.org/en/pavimentacion/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "General construction", "url": "https://masterservices.org/en/construccion-general/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Compressor maintenance", "url": "https://masterservices.org/en/mantenimiento-compresores/" } } ] }, "sameAs": [ "https://www.facebook.com/masterservicespanama", "https://www.instagram.com/master_services_panama", "https://www.linkedin.com/company/master-services" ], "priceRange": "$$", "hasMap": "https://maps.google.com/?cid=5601830698234476378" }, { "@type": "WebSite", "@id": "https://masterservices.org/#website", "url": "https://masterservices.org/", "name": "Master Services", "publisher": { "@id": "https://masterservices.org/#localbusiness" }, "inLanguage": [ "es-PA", "en" ] } ] } ] ```