{"id":5723,"date":"2026-07-08T14:42:23","date_gmt":"2026-07-08T06:42:23","guid":{"rendered":"https:\/\/ots-testequipment.net\/?page_id=5723"},"modified":"2026-07-08T16:36:08","modified_gmt":"2026-07-08T08:36:08","slug":"norma-astm-b117","status":"publish","type":"page","link":"https:\/\/ots-testequipment.net\/pt\/design-standard\/astm-b117-standard\/","title":{"rendered":"Norma ASTM B117"},"content":{"rendered":"<section class=\"section\" id=\"section_401051274\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-1652117013\">\n\n\t<div id=\"col-2076339928\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h1>Norma ASTM B117 relativa ao funcionamento de aparelhos de pulveriza\u00e7\u00e3o salina (n\u00e9voa)<\/h1>\n<p>A norma ASTM B117 \u00e9 uma norma de ensaio de n\u00e9voa salina (corros\u00e3o por n\u00e9voa salina) desenvolvida pela ASTM International. \u00c9 tamb\u00e9m uma das normas de ensaio de corros\u00e3o mais utilizadas a n\u00edvel mundial. Esta norma especifica os m\u00e9todos operacionais e as condi\u00e7\u00f5es b\u00e1sicas de ensaio para os ensaios de n\u00e9voa salina. Os utilizadores testam a resist\u00eancia \u00e0 corros\u00e3o de materiais met\u00e1licos, revestimentos e tratamentos de superf\u00edcie num ambiente controlado, de acordo com esta norma.<\/p>\n<p>A norma ASTM B117 especifica, principalmente, os requisitos relativos \u00e0 concentra\u00e7\u00e3o da solu\u00e7\u00e3o salina, \u00e0 temperatura da c\u00e2mara de ensaio, ao pH, \u00e0 taxa de pulveriza\u00e7\u00e3o e a par\u00e2metros relacionados. A dura\u00e7\u00e3o espec\u00edfica do ensaio e os requisitos de avalia\u00e7\u00e3o baseiam-se normalmente nas normas do produto, nas especifica\u00e7\u00f5es do setor ou nos requisitos t\u00e9cnicos do cliente. Se precisar de realizar ensaios de pulveriza\u00e7\u00e3o salina que cumpram os requisitos da norma ASTM B117, pode optar pelo <span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/ots-testequipment.net\/pt\/produtos\/camara-de-teste-de-pulverizacao-salina-de-precisao\/\" target=\"_blank\" rel=\"noopener\">C\u00e2mara de ensaio de n\u00e9voa salina da OTS Technik.<\/a><\/strong><\/span><\/p>\n<a href=\"#is-pop\" class=\"button primary\" >\n\t\t<span>Obter um or\u00e7amento<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_401051274 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1005805699\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row align-middle\"  id=\"row-1652124916\">\n\n\t<div id=\"col-562689787\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>\u00c2mbito da Norma ASTM B117<\/h2>\n<p>A norma ASTM B117 \u00e9 utilizada principalmente para testar a resist\u00eancia \u00e0 corros\u00e3o dos seguintes materiais e produtos:<\/p>\n<ul>\n<li>Materiais met\u00e1licos<\/li>\n<li>Pe\u00e7as galvanizadas e com revestimento por galvanoplastia<\/li>\n<li>Revestimentos org\u00e2nicos, tais como tintas e revestimentos em p\u00f3<\/li>\n<li>Produtos anodizados e outros produtos com tratamento de superf\u00edcie<\/li>\n<li>Elementos de fixa\u00e7\u00e3o, pe\u00e7as autom\u00f3veis, componentes eletr\u00f3nicos e produtos de ferragens<\/li>\n<\/ul>\n<p><strong>Nota: A norma ASTM B117 n\u00e3o especifica os crit\u00e9rios de aceita\u00e7\u00e3o nem a dura\u00e7\u00e3o do ensaio para os produtos.<\/strong> Estes devem ser determinados com base nas normas aplic\u00e1veis aos produtos, nas especifica\u00e7\u00f5es do setor ou nos requisitos dos clientes.<\/p>\n<a href=\"#is-pop\" class=\"button primary\" >\n\t\t<span>Obter um or\u00e7amento<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-813708263\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1034222551\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber.webp\" class=\"attachment-original size-original\" alt=\"C\u00e2mara de nevoeiro para autom\u00f3veis\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber.webp 1000w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber-300x300.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber-80x80.webp 80w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber-768x768.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber-12x12.webp 12w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber-500x500.webp 500w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2023\/03\/Automotive-Salt-Fog-Chamber-100x100.webp 100w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1034222551 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1005805699 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_2031805262\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-226087970\">\n\n\t<div id=\"col-1214425503\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Condi\u00e7\u00f5es de ensaio da norma ASTM B117<\/h2>\n<table>\n<thead>\n<tr>\n<th>Par\u00e2metro<\/th>\n<th>Requisito<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Solu\u00e7\u00e3o salina<\/td>\n<td>5% Cloreto de s\u00f3dio<\/td>\n<\/tr>\n<tr>\n<td>Temperatura da c\u00e2mara<\/td>\n<td>35 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>pH<\/td>\n<td>6,5\u20137,2<\/td>\n<\/tr>\n<tr>\n<td>Cole\u00e7\u00e3o Spray<\/td>\n<td>1\u20132 mL\/80 cm\u00b2\/h<\/td>\n<\/tr>\n<tr>\n<td>Tipo de pulveriza\u00e7\u00e3o<\/td>\n<td>N\u00e9voa cont\u00ednua<\/td>\n<\/tr>\n<tr>\n<td>Air Supply<\/td>\n<td>Limpo, Saturado<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<a href=\"#is-pop\" class=\"button primary\" >\n\t\t<span>Obter um or\u00e7amento<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_2031805262 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1769576079\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-1550763843\">\n\n\t<div id=\"col-866889258\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2 data-pm-slice=\"1 1 &#091;&#093;\">Procedimento de ensaio ASTM B117<\/h2>\n<h3><strong>1. Prepara\u00e7\u00e3o da amostra<\/strong><\/h3>\n<p>Limpe e submeta a amostra a um pr\u00e9-tratamento para remover \u00f3leo, p\u00f3 ou outros contaminantes que possam afetar os resultados do ensaio.<\/p>\n<h3><strong>2. Prepara\u00e7\u00e3o da solu\u00e7\u00e3o salina<\/strong><\/h3>\n<p>Prepare a solu\u00e7\u00e3o salina de acordo com a norma ASTM B117. Ajuste o valor do pH para o intervalo especificado.<\/p>\n<h3>3. Configura\u00e7\u00e3o da c\u00e2mara<\/h3>\n<p>Coloque a amostra no interior da c\u00e2mara de ensaio e ajuste a temperatura, o volume de pulveriza\u00e7\u00e3o, a press\u00e3o do ar e outras condi\u00e7\u00f5es de ensaio, de modo a cumprir os requisitos da norma ASTM B117.<\/p>\n<h3>4. Exposi\u00e7\u00e3o cont\u00ednua ao n\u00e9voa salina<\/h3>\n<p>A amostra foi exposta a um ambiente cont\u00ednuo de n\u00e9voa salina. A dura\u00e7\u00e3o do ensaio deve ser determinada com base nas normas do produto ou nos requisitos do cliente.<\/p>\n<h3>5. Inspe\u00e7\u00e3o peri\u00f3dica<\/h3>\n<p>Inspecione as amostras nos momentos especificados para verificar se apresentam ferrugem, bolhas, descama\u00e7\u00e3o ou outros sinais de corros\u00e3o. Registe os resultados do ensaio.<\/p>\n<h3>6. Avalia\u00e7\u00e3o final<\/h3>\n<p>Ap\u00f3s o ensaio, as amostras s\u00e3o submetidas a uma inspe\u00e7\u00e3o e avalia\u00e7\u00e3o finais, sendo elaborado um relat\u00f3rio de ensaio.<\/p>\n<a href=\"#is-pop\" class=\"button primary\" >\n\t\t<span>Obter um or\u00e7amento<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1769576079 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1034804631\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row align-middle\"  id=\"row-689069794\">\n\n\t<div id=\"col-1099039825\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Como s\u00e3o avaliados os resultados dos ensaios segundo a norma ASTM B117?<\/h2>\n<p>Ap\u00f3s o ensaio de n\u00e9voa salina, os utilizadores costumam verificar o estado de corros\u00e3o da superf\u00edcie da amostra, incluindo:<\/p>\n<ul>\n<li><strong>Ferrugem Vermelha:<\/strong> Isto revela a presen\u00e7a de corros\u00e3o no substrato, o que normalmente significa que o revestimento protetor falhou.<\/li>\n<li><strong>Ferrugem branca<\/strong>: Trata-se de um fen\u00f3meno comum de corros\u00e3o precoce que se verifica em revestimentos met\u00e1licos, como as camadas galvanizadas.<\/li>\n<li><strong>Bolhas<\/strong>: Surgem bolhas na superf\u00edcie do revestimento, o que est\u00e1 normalmente relacionado com a falha do revestimento.<\/li>\n<li><strong>Corros\u00e3o por pite<\/strong>: Corros\u00e3o localizada na superf\u00edcie do material que provoca pequenos orif\u00edcios ou cavidades.<\/li>\n<li><strong>Corros\u00e3o por pite<\/strong>: Pequenos orif\u00edcios ou cavidades formados por corros\u00e3o localizada na superf\u00edcie de um material.<\/li>\n<li><strong>\u00c1rea de corros\u00e3o<\/strong>: A extens\u00e3o da corros\u00e3o \u00e9 avaliada com base na percentagem ou no grau de corros\u00e3o na \u00e1rea afetada.<\/li>\n<\/ul>\n<a href=\"#is-pop\" class=\"button primary\" >\n\t\t<span>Obter um or\u00e7amento<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-368267627\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_983886902\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"1145\" height=\"750\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2026\/07\/How-are-ASTM-B117-test-results-evaluated.webp\" class=\"attachment-original size-original\" alt=\"Como s\u00e3o avaliados os resultados dos ensaios segundo a norma ASTM B117?\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2026\/07\/How-are-ASTM-B117-test-results-evaluated.webp 1145w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2026\/07\/How-are-ASTM-B117-test-results-evaluated-300x197.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2026\/07\/How-are-ASTM-B117-test-results-evaluated-1030x675.webp 1030w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2026\/07\/How-are-ASTM-B117-test-results-evaluated-768x503.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2026\/07\/How-are-ASTM-B117-test-results-evaluated-18x12.webp 18w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2026\/07\/How-are-ASTM-B117-test-results-evaluated-1000x655.webp 1000w\" sizes=\"(max-width: 1145px) 100vw, 1145px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_983886902 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1034804631 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1081023323\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-364855960\">\n\n\t<div id=\"col-2099055009\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Dura\u00e7\u00e3o do ensaio ASTM B117<\/h2>\n<p>A norma ASTM B117, por si s\u00f3, n\u00e3o especifica uma dura\u00e7\u00e3o fixa para o ensaio. O ciclo de ensaio efetivo \u00e9 normalmente determinado com base no tipo de produto, no material, no m\u00e9todo de tratamento de superf\u00edcie e nos requisitos do cliente ou do setor.<\/p>\n<p>As dura\u00e7\u00f5es habituais do ensaio de n\u00e9voa salina incluem 24, 48, 96, 240, 500 e per\u00edodos mais longos. Quanto mais longo for o tempo de ensaio, mais rigorosa ter\u00e1 de ser, normalmente, a verifica\u00e7\u00e3o da resist\u00eancia \u00e0 corros\u00e3o do produto.<\/p>\n<p>Diferentes aplica\u00e7\u00f5es, tais como pe\u00e7as autom\u00f3veis, elementos de fixa\u00e7\u00e3o, produtos de revestimento e equipamento mar\u00edtimo, podem exigir dura\u00e7\u00f5es de ensaio diferentes.<\/p>\n<a href=\"#is-pop\" class=\"button primary\" >\n\t\t<span>Obter um or\u00e7amento<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1081023323 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_2130541375\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-448344059\">\n\n\t<div id=\"col-1625005178\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>ASTM B117 vs. ISO 9227<\/h2>\n<table>\n<thead>\n<tr>\n<th>Item<\/th>\n<th>ASTM B117<\/th>\n<th>ISO 9227<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Organiza\u00e7\u00e3o emissora<\/td>\n<td>ASTM Internacional<\/td>\n<td>Organiza\u00e7\u00e3o Internacional de Normaliza\u00e7\u00e3o (ISO)<\/td>\n<\/tr>\n<tr>\n<td>\u00c2mbito de aplica\u00e7\u00e3o<\/td>\n<td>Amplamente utilizado na Am\u00e9rica do Norte e em aplica\u00e7\u00f5es industriais a n\u00edvel mundial<\/td>\n<td>Amplamente utilizado nos mercados internacionais, especialmente na Europa e noutras regi\u00f5es<\/td>\n<\/tr>\n<tr>\n<td>Tipos de testes<\/td>\n<td>Principalmente n\u00e9voa salina neutra (NSS)<\/td>\n<td>Pulveriza\u00e7\u00e3o de sal neutra (NSS), pulveriza\u00e7\u00e3o de sal com \u00e1cido ac\u00e9tico (AASS), pulveriza\u00e7\u00e3o de sal com \u00e1cido ac\u00e9tico acelerada por cobre (CASS)<\/td>\n<\/tr>\n<tr>\n<td>NSS<\/td>\n<td>Dispon\u00edvel<\/td>\n<td>Dispon\u00edvel<\/td>\n<\/tr>\n<tr>\n<td>AASS<\/td>\n<td>N\u00e3o inclu\u00eddo<\/td>\n<td>Dispon\u00edvel<\/td>\n<\/tr>\n<tr>\n<td>CASS<\/td>\n<td>N\u00e3o inclu\u00eddo<\/td>\n<td>Dispon\u00edvel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<a href=\"#is-pop\" class=\"button primary\" >\n\t\t<span>Obter um or\u00e7amento<\/span>\n\t<\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_2130541375 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":13,"featured_media":0,"parent":1434,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"footnotes":""},"class_list":["post-5723","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ASTM B117 Standard for Operating Salt Spray (Fog) Apparatus - OTS TECHNIK<\/title>\n<meta name=\"description\" content=\"ASTM B117 specifies the requirements for salt spray (fog) corrosion testing. Learn the standard, test process, and choose OTS salt spray test chambers for accurate and repeatable corrosion testing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ots-testequipment.net\/pt\/padrao-de-projeto\/norma-astm-b117\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ASTM B117 Standard for Operating Salt Spray (Fog) Apparatus - OTS TECHNIK\" \/>\n<meta property=\"og:description\" content=\"ASTM B117 specifies the requirements for salt spray (fog) corrosion testing. 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