{"id":21304,"date":"2026-05-29T11:40:30","date_gmt":"2026-05-29T09:40:30","guid":{"rendered":"https:\/\/gasmix.com\/hydrogen-fuel-purity-how-to-calibrate-gas-analyzers-at-trace-levels-iso-14687\/"},"modified":"2026-10-23T21:08:45","modified_gmt":"2026-10-23T19:08:45","slug":"hydrogen-fuel-purity-how-to-calibrate-gas-analyzers-at-trace-levels-iso-14687","status":"publish","type":"post","link":"https:\/\/gasmix.com\/es\/hydrogen-fuel-purity-how-to-calibrate-gas-analyzers-at-trace-levels-iso-14687\/","title":{"rendered":"Pureza del hidr\u00f3geno combustible: c\u00f3mo calibrar analizadores de gases a nivel de trazas (ISO 14687)"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"21304\" class=\"elementor elementor-21304 elementor-18737\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5f3bec6 e-flex e-con-boxed e-con e-parent\" data-id=\"5f3bec6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4fa7458 elementor-widget__width-inherit elementor-widget elementor-widget-html\" data-id=\"4fa7458\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\r\n\r\n<article class=\"nx\">\r\n\r\n  <h1 style=\"font-size:2.4em;line-height:1.15;margin:0 0 .55em;color:#0f172a;font-weight:600;letter-spacing:-0.02em;\">Calibraci\u00f3n de la pureza del hidr\u00f3geno combustible (ISO&nbsp;14687)<\/h1>\r\n  <p style=\"font-size:1.15em;color:#5b6675;margin:-0.2em 0 1.2em;\">C\u00f3mo calibrar analizadores de impurezas del hidr\u00f3geno a nivel de trazas, a demanda y con trazabilidad.<\/p>\r\n\r\n  <div class=\"nx-answer\">\r\n    <p style=\"margin:0;\"><strong>La ISO&nbsp;14687 fija l\u00edmites de impurezas para el hidr\u00f3geno destinado a pilas de combustible que llegan al rango de los ppb, donde la parte dif\u00edcil pasa a ser el patr\u00f3n de calibraci\u00f3n, no el analizador.<\/strong> Las botellas comerciales a nivel de trazas son caras, tardan en llegar, caducan pronto y tienen una incertidumbre certificada del 10 al 20&nbsp;%. La diluci\u00f3n din\u00e1mica (ISO&nbsp;6145-7) resuelve el problema: a partir de un \u00fanico patr\u00f3n madre concentrado y estable, un diluidor GasMix genera a demanda cualquier concentraci\u00f3n de impureza, con c\u00e1lculo autom\u00e1tico de la incertidumbre y registro de auditor\u00eda. Dos notas de aplicaci\u00f3n independientes lo demuestran: azufre y amon\u00edaco a niveles de pocos ppb en un detector PAC SeNSe2, e impurezas de gases permanentes que cumplen los l\u00edmites de detecci\u00f3n de la ISO&nbsp;14687 en un analizador de hidr\u00f3geno Da Vinci DVLS.  <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"nx-kpis\">\r\n    <div class=\"nx-kpi\"><b>niveles de ppb<\/b><span>azufre y NH<sub>3<\/sub> generados y cuantificados (nota PAC)<\/span><\/div>\r\n    <div class=\"nx-kpi\"> <b>&lt; 5&nbsp;% RSD<\/b><span>repetibilidad en las impurezas del H<sub>2<\/sub> (nota DVLS)<\/span><\/div>\r\n    <div class=\"nx-kpi\"><b>ISO&nbsp;14687<\/b><span>l\u00edmites de detecci\u00f3n alcanzados para los gases permanentes<\/span><\/div>\r\n    <div class=\"nx-kpi\"><b>ISO&nbsp;6145-7<\/b><span>diluci\u00f3n din\u00e1mica, trazabilidad NIST, registro de auditor\u00eda<\/span><\/div>\r\n  <\/div>\r\n\r\n  <p style=\"text-align:center;\">\r\n    <a class=\"nx-btn nx-btn--outline\" href=\"https:\/\/gasmix.com\/es\/generacion-de-gas-en-concentraciones-traza\/\">Contexto \u2192 Generaci\u00f3n de gases a nivel de trazas<\/a>\r\n  <\/p>\r\n\r\n  <h2>Por qu\u00e9 los l\u00edmites de pureza del hidr\u00f3geno combustible son tan bajos<\/h2>\r\n\r\n  <p>Una pila de combustible debe aguantar unos 200 000&nbsp;km (125 000&nbsp;millas) sin una revisi\u00f3n importante. Las impurezas del hidr\u00f3geno se depositan en el catalizador y reducen su actividad de forma acumulativa a lo largo de esa vida \u00fatil. Para fijar los l\u00edmites, los ingenieros calculan la masa m\u00e1xima tolerable de cada contaminante durante la vida del veh\u00edculo y la dividen por el hidr\u00f3geno total consumido. El resultado, recogido en la ISO&nbsp;14687 para las pilas de combustible PEM, es un conjunto de l\u00edmites de concentraci\u00f3n que van de los ppb a unos pocos ppm, algunos por debajo del ppb.   <\/p>\r\n\r\n  <p>Esto plantea dos problemas al qu\u00edmico anal\u00edtico: encontrar un analizador capaz de detectar impurezas a esos niveles y, m\u00e1s dif\u00edcil todav\u00eda, disponer de gases de calibraci\u00f3n fiables y trazables a esas mismas concentraciones.<\/p>\r\n\r\n  <h2>El problema de los patrones certificados comerciales<\/h2>\r\n\r\n  <ul class=\"nx-list\">\r\n    <li><strong>Plazos de entrega largos y variables<\/strong>, de varias semanas.<\/li>\r\n    <li><strong>Vida \u00fatil corta<\/strong>, de apenas 3 meses para los compuestos traza reactivos.<\/li>\r\n    <li><strong>Incertidumbre certificada elevada<\/strong>, del 10 al 20&nbsp;%, que se traslada directamente a la incertidumbre de su medici\u00f3n.<\/li>\r\n    <li><strong>Coste muy elevado<\/strong>, que aumenta a medida que baja la concentraci\u00f3n objetivo.<\/li>\r\n    <li><strong>Concentraci\u00f3n inadecuada<\/strong>, a menudo alejada del objetivo en uno o dos \u00f3rdenes de magnitud, lo que obliga a hacer diluciones manuales adicionales.<\/li>\r\n  <\/ul>\r\n\r\n  <h2>La soluci\u00f3n del diluidor de gases: cualquier concentraci\u00f3n, a demanda<\/h2>\r\n\r\n  <p>La diluci\u00f3n din\u00e1mica seg\u00fan la ISO&nbsp;6145-7 parte de un \u00fanico patr\u00f3n madre certificado y concentrado, que es estable, relativamente econ\u00f3mico, est\u00e1 certificado hasta cinco a\u00f1os y tiene una incertidumbre reducida. Un diluidor <a href=\"https:\/\/gasmix.com\/es\/sistemas-mezcladores-y-diluidores-de-gas\/zephyr-ii\/\">ZEPHYR&nbsp;II<\/a> o <a href=\"https:\/\/gasmix.com\/es\/sistemas-mezcladores-y-diluidores-de-gas\/aiolos-iii\/\">AIOLOS&nbsp;III<\/a> produce despu\u00e9s, a demanda, cualquier concentraci\u00f3n comprendida entre la del patr\u00f3n madre y la del gas diluyente, con trazabilidad documentada. <\/p>\r\n\r\n  <figure class=\"nx-fig\">\r\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 720 210\" role=\"img\" aria-label=\"One concentrated certified parent standard feeds a GasMix diluter, which generates ppb-level impurity standards on demand for a hydrogen impurity analyser.\">\r\n      <defs><marker id=\"ar\" markerwidth=\"9\" markerheight=\"9\" refx=\"7\" refy=\"4.5\" orient=\"auto\"><path d=\"M0 0L9 4.5L0 9z\" fill=\"#6b2fb3\"><\/path><\/marker><\/defs>\r\n      <rect x=\"14\" y=\"66\" width=\"96\" height=\"78\" rx=\"10\" fill=\"#f4f0fb\" stroke=\"#6b2fb3\" stroke-width=\"1.5\"><\/rect>\r\n      <text x=\"62\" y=\"96\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"12\" font-weight=\"600\" fill=\"#0f172a\">Parent<\/text>\r\n      <text x=\"62\" y=\"112\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"12\" font-weight=\"600\" fill=\"#0f172a\">standard<\/text>\r\n      <text x=\"62\" y=\"130\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"10\" fill=\"#475569\">stable, certified<\/text>\r\n      <rect x=\"170\" y=\"52\" width=\"170\" height=\"106\" rx=\"12\" fill=\"#ffffff\" stroke=\"#0f172a\" stroke-width=\"1.6\"><\/rect>\r\n      <text x=\"255\" y=\"88\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"15\" font-weight=\"700\" fill=\"#0f172a\">GasMix<\/text>\r\n      <text x=\"255\" y=\"107\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"11.5\" fill=\"#475569\">dynamic dilution<\/text>\r\n      <text x=\"255\" y=\"124\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"11.5\" fill=\"#475569\">ISO 6145-7<\/text>\r\n      <text x=\"255\" y=\"141\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"11.5\" fill=\"#475569\">+ dilution gas<\/text>\r\n      <rect x=\"400\" y=\"66\" width=\"120\" height=\"78\" rx=\"10\" fill=\"#f4f0fb\" stroke=\"#6b2fb3\" stroke-width=\"1.4\"><\/rect>\r\n      <text x=\"460\" y=\"98\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"12.5\" font-weight=\"700\" fill=\"#4d1f85\">ppb standard<\/text>\r\n      <text x=\"460\" y=\"116\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"10.5\" fill=\"#475569\">any concentration,<\/text>\r\n      <text x=\"460\" y=\"130\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"10.5\" fill=\"#475569\">on demand<\/text>\r\n      <rect x=\"582\" y=\"52\" width=\"124\" height=\"106\" rx=\"12\" fill=\"#ffffff\" stroke=\"#0f172a\" stroke-width=\"1.6\"><\/rect>\r\n      <text x=\"644\" y=\"94\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"13.5\" font-weight=\"700\" fill=\"#0f172a\">H\u2082 impurity<\/text>\r\n      <text x=\"644\" y=\"112\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"13.5\" font-weight=\"700\" fill=\"#0f172a\">analyser<\/text>\r\n      <text x=\"644\" y=\"130\" text-anchor=\"middle\" font-family=\"Inter,sans-serif\" font-size=\"10\" fill=\"#475569\">GC \/ SCD \/ NCD<\/text>\r\n      <line x1=\"112\" y1=\"105\" x2=\"166\" y2=\"105\" stroke=\"#6b2fb3\" stroke-width=\"2\" marker-end=\"url(#ar)\"><\/line>\r\n      <line x1=\"342\" y1=\"105\" x2=\"396\" y2=\"105\" stroke=\"#6b2fb3\" stroke-width=\"2\" marker-end=\"url(#ar)\"><\/line>\r\n      <line x1=\"522\" y1=\"105\" x2=\"578\" y2=\"105\" stroke=\"#6b2fb3\" stroke-width=\"2\" marker-end=\"url(#ar)\"><\/line>\r\n    <\/svg>\r\n    <figcaption>Un \u00fanico patr\u00f3n madre certificado y concentrado se convierte, a demanda, en una serie ilimitada de patrones de impurezas a nivel de ppb que alimentan el analizador de impurezas del hidr\u00f3geno.<\/figcaption>\r\n  <\/figure>\r\n\r\n  <ul class=\"nx-ben\">\r\n    <li>\r\n      <span class=\"ic\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M4 12h16\"><\/path><path d=\"M12 4v16\"><\/path><circle cx=\"12\" cy=\"12\" r=\"9\"><\/circle><\/svg><\/span>\r\n      <div><b>Concentraci\u00f3n objetivo exacta<\/b><span>Genere el nivel que necesita y enmarque las muestras desconocidas, en lugar de conformarse con un valor de cat\u00e1logo.<\/span><\/div>\r\n    <\/li>\r\n    <li>\r\n      <span class=\"ic\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><rect x=\"7\" y=\"3\" width=\"10\" height=\"18\" rx=\"3\"><\/rect><path d=\"M7 9h10\"><\/path><\/svg><\/span>\r\n      <div><b>Menos botellas<\/b><span>Un solo patr\u00f3n madre sustituye a toda una estanter\u00eda de botellas certificadas a nivel de trazas: menos existencias, log\u00edstica m\u00e1s sencilla y mayor seguridad.<\/span><\/div>\r\n    <\/li>\r\n    <li>\r\n      <span class=\"ic\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M12 2l7 4v5c0 5-3.5 8-7 9-3.5-1-7-4-7-9V6z\"><\/path><path d=\"M9 12l2 2 4-4\"><\/path><\/svg><\/span>\r\n      <div><b>Trazabilidad completa<\/b><span>Registro de auditor\u00eda, c\u00e1lculo autom\u00e1tico de la incertidumbre e informe en PDF para cada mezcla.<\/span><\/div>\r\n    <\/li>\r\n    <li>\r\n      <span class=\"ic\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M12 3v4\"><\/path><path d=\"M8 7h8l-1 5a3 3 0 0 1-6 0z\"><\/path><path d=\"M9 21h6\"><\/path><path d=\"M12 17v4\"><\/path><\/svg><\/span>\r\n      <div><b>Compuestos agresivos<\/b><span>Compatible con especies reactivas: compuestos de azufre, NO<sub>x<\/sub>, NH<sub>3<\/sub> y COV.<\/span><\/div>\r\n    <\/li>\r\n  <\/ul>\r\n\r\n  <div class=\"nx-cta nx-cta--primary\">\r\n    <h3>Calibre su analizador de hidr\u00f3geno a niveles de ppb<\/h3>\r\n    <p>Ind\u00edquenos las impurezas objetivo, los l\u00edmites de la ISO&nbsp;14687 y su analizador, y le confirmaremos la configuraci\u00f3n del diluidor y la incertidumbre esperada.<\/p>\r\n    <a class=\"nx-btn nx-btn--primary\" href=\"https:\/\/gasmix.com\/es\/contacta-con-nosotros\/\">Solicitar presupuesto<\/a> <a class=\"nx-btn nx-btn--onpurple\" href=\"https:\/\/gasmix.com\/es\/buscador-gasmix\/\">Iniciar el buscador de productos<\/a>\r\n  <\/div>\r\n\r\n  <h2>L\u00edmites de impurezas de la ISO&nbsp;14687 y lo que debe alcanzar un analizador<\/h2>\r\n\r\n  <p>Las impurezas de gases permanentes que figuran a continuaci\u00f3n se midieron en un analizador de hidr\u00f3geno Da Vinci DVLS calibrado con un patr\u00f3n AlyTech Gas&nbsp;Mix. Los l\u00edmites de detecci\u00f3n quedan holgadamente por debajo de la especificaci\u00f3n de la ISO&nbsp;14687 para cada compuesto. <\/p>\r\n\r\n  <div class=\"nx-tw\">\r\n    <table class=\"nx-t\">\r\n      <thead><tr><th>Impureza<\/th><th>L\u00edmite ISO&nbsp;14687 (\u00b5mol\/mol)<\/th><th>L\u00edmite de detecci\u00f3n (\u00b5mol\/mol)<\/th><\/tr><\/thead>\r\n      <tbody>\r\n        <tr><td>Arg\u00f3n<\/td><td>300<\/td><td class=\"win\">&lt; 0,1<\/td><\/tr>\r\n        <tr><td>Ox\u00edgeno<\/td><td>5<\/td><td class=\"win\">&lt; 0,1<\/td><\/tr>\r\n        <tr><td>Nitr\u00f3geno<\/td><td>300<\/td><td class=\"win\">&lt; 0,1<\/td><\/tr>\r\n        <tr><td>Mon\u00f3xido de carbono<\/td><td>0,2<\/td><td class=\"win\">0,1<\/td><\/tr>\r\n        <tr><td>Metano<\/td><td>100<\/td><td class=\"win\">&lt; 1<\/td><\/tr>\r\n        <tr><td>Di\u00f3xido de carbono<\/td><td>2<\/td><td class=\"win\">&lt; 1<\/td><\/tr>\r\n        <tr><td>Hidrocarburos pesados<\/td><td>2<\/td><td class=\"win\">&lt; 1<\/td><\/tr>\r\n        <tr><td>Helio<\/td><td>300<\/td><td class=\"win\">&lt; 50<\/td><\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <h2>Resultados demostrados: dos notas de aplicaci\u00f3n<\/h2>\r\n\r\n  <h3>Azufre y amon\u00edaco a niveles de pocos ppb (PAC SeNSe2)<\/h3>\r\n\r\n  <p>En una nota conjunta de PAC y AlyTech, un GasMix gener\u00f3 niveles de calibraci\u00f3n trazables para un detector de quimioluminiscencia de azufre\/nitr\u00f3geno PAC SeNSe2. Las especies de azufre se cuantificaron a niveles de pocos ppb y el amon\u00edaco por debajo de 100&nbsp;ppb, con una respuesta estable, lineal y equimolar: <\/p>\r\n\r\n  <div class=\"nx-tw\">\r\n    <table class=\"nx-t\">\r\n      <thead><tr><th>Componente<\/th><th>Media<\/th><th>Objetivo<\/th><th>Sesgo<\/th><th>RSD<\/th><\/tr><\/thead>\r\n      <tbody>\r\n        <tr><td>H<sub>2<\/sub>S<\/td><td>3,76&nbsp;ppb<\/td><td>3,59&nbsp;ppb<\/td><td>+4,71&nbsp;%<\/td><td>3,2&nbsp;%<\/td><\/tr>\r\n        <tr><td>COS<\/td><td>4,14&nbsp;ppb<\/td><td>4,00&nbsp;ppb<\/td><td>+3,62&nbsp;%<\/td><td>2,9&nbsp;%<\/td><\/tr>\r\n        <tr><td>SO<sub>2<\/sub><\/td><td>4,11&nbsp;ppb<\/td><td>4,00&nbsp;ppb<\/td><td>+2,87&nbsp;%<\/td><td>3,4&nbsp;%<\/td><\/tr>\r\n        <tr><td>NH<sub>3<\/sub><\/td><td>96,30&nbsp;ppb<\/td><td>100,00&nbsp;ppb<\/td><td>\u22123,70&nbsp;%<\/td><td>7,1&nbsp;%<\/td><\/tr>\r\n        <tr><td>Azufre total<\/td><td>12,02&nbsp;ppb<\/td><td>11,59&nbsp;ppb<\/td><td>+3,70&nbsp;%<\/td><td class=\"win\">1,0&nbsp;%<\/td><\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <div class=\"nx-src\">\r\n    <b>Referencia:<\/b> \u00abHow the GasMix\u2122 Enhances Ultra-Low-Level Sulfur and Ammonia Analysis with the PAC SeNSe2 Detector\u00bb, T.&nbsp;Boekee (PAC) y L.&nbsp;Courthaudon (AlyTech). <a href=\"https:\/\/gasmix.com\/wp-content\/uploads\/2026\/04\/PAC_SenSe_x_GasMix_right-version-final.pdf\">Leer la nota de aplicaci\u00f3n (PDF)<\/a>.\r\n  <\/div>\r\n\r\n  <h3>Impurezas de gases permanentes en un analizador de hidr\u00f3geno (Da Vinci DVLS)<\/h3>\r\n\r\n  <p>En una nota de Da Vinci Laboratory Solutions, se calibr\u00f3 un analizador de hidr\u00f3geno DVLS (PDHID, FID y TCD en tres canales) con un patr\u00f3n AlyTech Gas&nbsp;Mix. En 12 an\u00e1lisis repetidos, la repetibilidad se mantuvo muy por debajo del 5&nbsp;% de RSD para todas las impurezas: <\/p>\r\n\r\n  <div class=\"nx-tw\">\r\n    <table class=\"nx-t\">\r\n      <thead><tr><th>Impureza<\/th><th>Media<\/th><th>RSD (n=12)<\/th><\/tr><\/thead>\r\n      <tbody>\r\n        <tr><td>Mon\u00f3xido de carbono<\/td><td>10,2<\/td><td class=\"win\">0,13&nbsp;%<\/td><\/tr>\r\n        <tr><td>Metano<\/td><td>10,1<\/td><td class=\"win\">0,26&nbsp;%<\/td><\/tr>\r\n        <tr><td>Hidrocarburos pesados<\/td><td>10,0<\/td><td class=\"win\">0,25&nbsp;%<\/td><\/tr>\r\n        <tr><td>Di\u00f3xido de carbono<\/td><td>10,1<\/td><td class=\"win\">0,31&nbsp;%<\/td><\/tr>\r\n        <tr><td>Arg\u00f3n<\/td><td>102<\/td><td>0,94&nbsp;%<\/td><\/tr>\r\n        <tr><td>Ox\u00edgeno<\/td><td>10,4<\/td><td>2,30&nbsp;%<\/td><\/tr>\r\n        <tr><td>Nitr\u00f3geno<\/td><td>109<\/td><td>2,48&nbsp;%<\/td><\/tr>\r\n        <tr><td>Helio<\/td><td>94,9<\/td><td>3,58&nbsp;%<\/td><\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <p>La resoluci\u00f3n cromatogr\u00e1fica fue de 2,0 para arg\u00f3n\/ox\u00edgeno y de 3,4 para helio\/hidr\u00f3geno, con un tiempo de an\u00e1lisis de unos 20&nbsp;minutos.<\/p>\r\n\r\n  <div class=\"nx-src\">\r\n    <b>Referencia:<\/b> \u00abThe Analysis of Impurities in Hydrogen Fuel Using the DVLS Hydrogen Analyzer\u00bb, B.&nbsp;de&nbsp;Jonge, Da Vinci Laboratory Solutions. <a href=\"https:\/\/gasmix.com\/wp-content\/uploads\/2025\/11\/DVLS-The-analysis-of-impurities-in-hydrogen-fuel-application-note-DVE.75.01-1.pdf\">Leer la nota de aplicaci\u00f3n (PDF)<\/a>.\r\n  <\/div>\r\n\r\n  <div class=\"nx-quote\">Dos fabricantes de instrumentos independientes, un mismo enfoque de calibraci\u00f3n: a partir de un \u00fanico patr\u00f3n madre certificado, la diluci\u00f3n din\u00e1mica GasMix proporciona la calibraci\u00f3n trazable a nivel de ppb que exige el an\u00e1lisis del hidr\u00f3geno seg\u00fan la ISO&nbsp;14687.<\/div>\r\n\r\n  <h2>Botellas comerciales frente a diluci\u00f3n din\u00e1mica para la ISO&nbsp;14687<\/h2>\r\n\r\n  <div class=\"nx-tw\">\r\n    <table class=\"nx-t\">\r\n      <thead><tr><th>Criterio<\/th><th>Botellas comerciales a nivel de trazas<\/th><th>Diluci\u00f3n din\u00e1mica (GasMix)<\/th><\/tr><\/thead>\r\n      <tbody>\r\n        <tr><td>Plazo de entrega<\/td><td>Varias semanas<\/td><td class=\"win\">A demanda, in situ<\/td><\/tr>\r\n        <tr><td>Vida \u00fatil<\/td><td>Apenas 3 meses (especies reactivas)<\/td><td class=\"win\">Patr\u00f3n madre certificado hasta 5 a\u00f1os<\/td><\/tr>\r\n        <tr><td>Incertidumbre certificada<\/td><td>Del 10 al 20&nbsp;%<\/td><td class=\"win\">Reducida, propagada e indicada para cada mezcla<\/td><\/tr>\r\n        <tr><td>Concentraci\u00f3n<\/td><td>Fija, a menudo alejada del objetivo<\/td><td class=\"win\">Cualquier nivel entre el patr\u00f3n madre y el diluyente<\/td><\/tr>\r\n        <tr><td>Coste a nivel de trazas<\/td><td>Muy elevado, aumenta al bajar el nivel<\/td><td class=\"win\">Un patr\u00f3n madre, m\u00faltiples niveles<\/td><\/tr>\r\n        <tr><td>Compuestos reactivos (S, NO<sub>x<\/sub>, NH<sub>3<\/sub>)<\/td><td>Dif\u00edciles de certificar y de mantener estables<\/td><td class=\"win\">Generados en el momento, circuito con tratamiento inerte<\/td><\/tr>\r\n        <tr><td>Trazabilidad<\/td><td>Certificado del proveedor<\/td><td class=\"win\">Registro de auditor\u00eda, incertidumbre autom\u00e1tica, informe en PDF<\/td><\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <h2>Qu\u00e9 sistema GasMix elegir para el an\u00e1lisis de pureza del hidr\u00f3geno<\/h2>\r\n\r\n  <p>Para la diluci\u00f3n compacta de dos gases, <a href=\"https:\/\/gasmix.com\/es\/sistemas-mezcladores-y-diluidores-de-gas\/zephyr-ii\/\">ZEPHYR&nbsp;II<\/a>; para la diluci\u00f3n automatizada de varios gases y las secuencias multipunto (la opci\u00f3n natural para un panel completo de impurezas ISO&nbsp;14687), <a href=\"https:\/\/gasmix.com\/es\/sistemas-mezcladores-y-diluidores-de-gas\/aiolos-iii\/\">AIOLOS&nbsp;III<\/a>; para mezclas complejas de hasta 16 canales o m\u00e1s, <a href=\"https:\/\/gasmix.com\/es\/sistemas-mezcladores-y-diluidores-de-gas\/hurricane\/\">HURRICANE<\/a>. El mismo m\u00e9todo es la base de la <a href=\"https:\/\/gasmix.com\/es\/generacion-de-gas-en-concentraciones-traza\/\">generaci\u00f3n de gases a nivel de trazas<\/a> y de la <a href=\"https:\/\/gasmix.com\/es\/automatizar-la-calibracion-multipunto\/\">calibraci\u00f3n multipunto automatizada<\/a>. \u00bfNo sabe cu\u00e1l se adapta a su analizador? La gu\u00eda <a href=\"https:\/\/gasmix.com\/es\/como-elegir-el-mezclador-de-gases-adecuado-para-su-laboratorio-las-7-especificaciones-que-realmente-importan\/\">C\u00f3mo elegir el mezclador de gases adecuado<\/a> le orienta paso a paso, o el <a href=\"https:\/\/gasmix.com\/es\/buscador-gasmix\/\">buscador de productos<\/a> le recomienda una configuraci\u00f3n.  <\/p>\r\n\r\n  <h2>Preguntas frecuentes<\/h2>\r\n\r\n  <div class=\"gm-faq\">\r\n    <details>\r\n      <summary>\u00bfPor qu\u00e9 los l\u00edmites de impurezas del hidr\u00f3geno de la ISO&nbsp;14687 est\u00e1n en niveles de ppb?<span class=\"gm-chev\"><\/span><\/summary>\r\n      <div class=\"gm-faq-body\"><p>Porque las impurezas envenenan el catalizador de la pila de combustible de forma acumulativa a lo largo de la vida del veh\u00edculo (unos 200 000&nbsp;km). La ISO&nbsp;14687 calcula la masa m\u00e1xima tolerable de cada contaminante durante esa vida \u00fatil y la divide por el consumo total de hidr\u00f3geno, lo que sit\u00faa los l\u00edmites entre los ppb y unos pocos ppm, algunos por debajo del ppb. <\/p><\/div>\r\n    <\/details>\r\n    <details>\r\n      <summary>\u00bfPor qu\u00e9 no comprar directamente botellas certificadas a nivel de trazas?<span class=\"gm-chev\"><\/span><\/summary>\r\n      <div class=\"gm-faq-body\"><p>A estos niveles tienen plazos de entrega largos (semanas), una vida \u00fatil corta (apenas 3 meses para las especies reactivas), una incertidumbre certificada elevada (del 10 al 20&nbsp;%), un coste alto y, a menudo, una concentraci\u00f3n inadecuada. La diluci\u00f3n din\u00e1mica genera a demanda el nivel exacto que necesita a partir de un \u00fanico patr\u00f3n madre estable. <\/p><\/div>\r\n    <\/details>\r\n    <details>\r\n      <summary>\u00bfQu\u00e9 exactitud y repetibilidad ofrece aqu\u00ed la calibraci\u00f3n por diluci\u00f3n?<span class=\"gm-chev\"><\/span><\/summary>\r\n      <div class=\"gm-faq-body\"><p>En la nota PAC SeNSe2, las especies de azufre a unos 4&nbsp;ppb mostraron un sesgo del 2,9 al 4,7&nbsp;% y una RSD del 2,9 al 3,4&nbsp;%; el amon\u00edaco a unos 96&nbsp;ppb dio una RSD del 7,1&nbsp;% y el azufre total, del 1,0&nbsp;%. En la nota DVLS, las impurezas de gases permanentes se mantuvieron por debajo del 5&nbsp;% de RSD en 12 an\u00e1lisis (del 0,13 al 3,58&nbsp;%). Los resultados dependen del analizador y del compuesto.  <\/p><\/div>\r\n    <\/details>\r\n    <details>\r\n      <summary>\u00bfPuede generar impurezas agresivas como el H2S y el NH3?<span class=\"gm-chev\"><\/span><\/summary>\r\n      <div class=\"gm-faq-body\"><p>S\u00ed. Los diluidores son compatibles con compuestos agresivos (especies de azufre, NO<sub>x<\/sub>, amon\u00edaco, COV) gracias a circuitos con tratamiento inerte, y los generan en el momento, en el punto de uso, lo que evita la deriva y la adsorci\u00f3n que afectan a las botellas de especies reactivas. <\/p><\/div>\r\n    <\/details>\r\n    <details>\r\n      <summary>\u00bfEs la calibraci\u00f3n trazable y conforme a las normas ISO?<span class=\"gm-chev\"><\/span><\/summary>\r\n      <div class=\"gm-faq-body\"><p>La generaci\u00f3n sigue el m\u00e9todo de diluci\u00f3n din\u00e1mica de la ISO&nbsp;6145-7; el patr\u00f3n madre est\u00e1 certificado y es trazable al NIST, y cada mezcla incluye un c\u00e1lculo autom\u00e1tico de la incertidumbre, un registro de auditor\u00eda y un informe en PDF. Todo ello respalda la calibraci\u00f3n conforme a los l\u00edmites de impurezas de la ISO&nbsp;14687. <\/p><\/div>\r\n    <\/details>\r\n    <details>\r\n      <summary>\u00bfCon qu\u00e9 analizadores se ha demostrado?<span class=\"gm-chev\"><\/span><\/summary>\r\n      <div class=\"gm-faq-body\"><p>Dos notas publicadas: un detector de quimioluminiscencia de azufre\/nitr\u00f3geno PAC SeNSe2 (azufre y amon\u00edaco a niveles de ppb) y un analizador de hidr\u00f3geno Da Vinci DVLS con PDHID, FID y TCD (impurezas de gases permanentes frente a la ISO&nbsp;14687). El enfoque gen\u00e9rico de diluci\u00f3n tambi\u00e9n es aplicable a otros analizadores de impurezas del hidr\u00f3geno. <\/p><\/div>\r\n    <\/details>\r\n  <\/div>\r\n\r\n  <div class=\"nx-cta nx-cta--soft\" style=\"margin-top:2em;\">\r\n    <h3>Lleve la calibraci\u00f3n ISO&nbsp;14687 a su propio laboratorio<\/h3>\r\n    <p>M\u00e1s de 25 a\u00f1os especificando sistemas de diluci\u00f3n de gases. Ind\u00edquenos su panel de impurezas y su analizador, y le especificaremos el GasMix adecuado, o empiece por el buscador de productos. <\/p>\r\n    <a class=\"nx-btn nx-btn--solid\" href=\"https:\/\/gasmix.com\/es\/contacta-con-nosotros\/\">Solicitar presupuesto<\/a>\r\n    <a class=\"nx-btn nx-btn--outline\" href=\"https:\/\/gasmix.com\/es\/buscador-gasmix\/\">Iniciar el buscador de productos<\/a>\r\n    <p style=\"margin-top:.8em;font-size:.92em;\">O escr\u00edbanos a <a href=\"mailto:gasmix@alytech.fr\">gasmix@alytech.fr<\/a>.<\/p>\r\n  <\/div>\r\n\r\n  <p style=\"font-size:.9em;color:#6b7280;margin-top:2em;\">Referencias: nota de aplicaci\u00f3n PAC SeNSe2 x GasMix (Boekee, Courthaudon); nota de aplicaci\u00f3n del analizador de hidr\u00f3geno Da Vinci DVLS (de Jonge). Las cifras citadas proceden de esas notas y dependen del analizador y del compuesto. Normas: ISO&nbsp;14687, ISO&nbsp;6145-7. Los nombres de marca de los instrumentos son marcas comerciales de sus respectivos propietarios; la interoperabilidad se describe sin que ello implique respaldo alguno. GasMix, AlyTech.    <\/p>\r\n\r\n<\/article>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Calibraci\u00f3n de la pureza del hidr\u00f3geno combustible (ISO&nbsp;14687) C\u00f3mo calibrar analizadores de impurezas del hidr\u00f3geno a nivel de trazas, a demanda y con trazabilidad. La ISO&nbsp;14687 fija l\u00edmites de impurezas para el hidr\u00f3geno destinado a pilas de combustible que llegan al rango de los ppb, donde la parte dif\u00edcil pasa a ser el patr\u00f3n de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21305,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[305],"tags":[],"class_list":["post-21304","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Hidr\u00f3geno: comprender los l\u00edmites de pureza e impurezas &#8212; 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