{"id":906,"date":"2025-02-25T13:44:33","date_gmt":"2025-02-25T05:44:33","guid":{"rendered":"https:\/\/www.puncturetest.com\/?page_id=906"},"modified":"2025-07-03T15:44:39","modified_gmt":"2025-07-03T07:44:39","slug":"iso-7864-needle-penetration-drag-force-test","status":"publish","type":"page","link":"https:\/\/www.puncturetest.com\/pt\/standards\/iso-7864-needle-penetration-drag-force-test\/","title":{"rendered":"Teste de penetra\u00e7\u00e3o de agulha e for\u00e7a de arrasto ISO 7864"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"906\" class=\"elementor elementor-906\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c60fdbb e-flex e-con-boxed e-con e-parent\" data-id=\"c60fdbb\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-db6fcba e-con-full e-flex e-con e-child\" data-id=\"db6fcba\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-9d1f798 e-con-full e-flex e-con e-child\" data-id=\"9d1f798\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-8cc5a79 e-con-full e-flex e-con e-child\" data-id=\"8cc5a79\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b6b67d4 elementor-widget elementor-widget-heading\" data-id=\"b6b67d4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">ISO 7864<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75302b5 elementor-widget elementor-widget-heading\" data-id=\"75302b5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Teste de penetra\u00e7\u00e3o de agulha e for\u00e7a de arrasto<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-69f526a elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"69f526a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A ISO 7864 \u00e9 uma norma crucial para testar a penetra\u00e7\u00e3o da agulha e as for\u00e7as de arrastamento que as agulhas devem suportar quando inseridas em v\u00e1rios substratos. Este teste \u00e9 essencial para garantir a fiabilidade, seguran\u00e7a e desempenho das agulhas utilizadas em dispositivos m\u00e9dicos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ed8f07 elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"2ed8f07\" data-element_type=\"widget\" data-settings=\"{&quot;button_width&quot;:&quot;25&quot;,&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" action=\"\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"906\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"2ed8f07\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"Puncture Test\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tNome\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Nome\" required=\"required\" aria-required=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-field_26b0101 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_26b0101\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tEmpresa\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[field_26b0101]\" id=\"form-field-field_26b0101\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Empresa\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tCorreio eletr\u00f3nico\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Correio eletr\u00f3nico\" required=\"required\" aria-required=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tMensagem\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Mensagem\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-recaptcha elementor-field-group elementor-column elementor-field-group-field_50f0fd6 elementor-col-100\">\n\t\t\t\t\t<div class=\"elementor-field\" id=\"form-field-field_50f0fd6\"><div class=\"elementor-g-recaptcha\" data-sitekey=\"6LcO3HUrAAAAAKhAi3KjswdM4-_7i5zKd1s5FO2N\" data-type=\"v2_checkbox\" data-theme=\"light\" data-size=\"normal\"><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-25 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Enviar<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"pt\"\/><\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-163fe1b e-con-full e-flex e-con e-child\" data-id=\"163fe1b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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<div class=\"elementor-element elementor-element-3f2b60d e-flex e-con-boxed e-con e-parent\" data-id=\"3f2b60d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7c5f6d2 elementor-widget elementor-widget-heading\" data-id=\"7c5f6d2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">O que \u00e9 a ISO 7864?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6126588 elementor-widget elementor-widget-text-editor\" data-id=\"6126588\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"753\" data-end=\"1317\">A norma ISO 7864 define os m\u00e9todos de ensaio para medir a for\u00e7a de penetra\u00e7\u00e3o e a for\u00e7a de arrastamento exercida pelas agulhas quando s\u00e3o inseridas em diferentes substratos. A norma \u00e9 normalmente utilizada para avaliar o desempenho das agulhas hipod\u00e9rmicas, garantindo que cumprem os requisitos de qualidade e seguran\u00e7a necess\u00e1rios para utiliza\u00e7\u00e3o em aplica\u00e7\u00f5es m\u00e9dicas. Aborda especificamente duas for\u00e7as-chave: a <strong data-start=\"1135\" data-end=\"1163\">for\u00e7a de penetra\u00e7\u00e3o da agulha<\/strong> (a for\u00e7a inicial necess\u00e1ria para penetrar num material) e a <strong data-start=\"1225\" data-end=\"1239\">for\u00e7a de arrasto<\/strong> (a for\u00e7a de fric\u00e7\u00e3o sentida quando a agulha se desloca atrav\u00e9s do substrato).<\/p>\t\t\t\t\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<div class=\"elementor-element elementor-element-a9693b2 e-flex e-con-boxed e-con e-parent\" data-id=\"a9693b2\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b44c843 elementor-widget elementor-widget-heading\" data-id=\"b44c843\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A import\u00e2ncia dos testes ISO 7864<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-038313d e-grid e-con-full e-con e-child\" data-id=\"038313d\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-cb46a46 e-con-full e-flex e-con e-child\" data-id=\"cb46a46\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1826538 elementor-widget elementor-widget-heading\" data-id=\"1826538\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Teste de for\u00e7a de penetra\u00e7\u00e3o da agulha<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe10a7a elementor-widget elementor-widget-text-editor\" data-id=\"fe10a7a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"1442\" data-end=\"1710\">O <strong data-start=\"1446\" data-end=\"1479\">ensaio de for\u00e7a de penetra\u00e7\u00e3o da agulha<\/strong> mede a for\u00e7a de pico necess\u00e1ria para que uma agulha penetre num material espec\u00edfico. Este teste \u00e9 essencial para garantir que a agulha pode penetrar facilmente na pele ou noutros materiais alvo sem causar dor ou danos desnecess\u00e1rios.<\/p>\n<p data-start=\"1712\" data-end=\"2026\">Normalmente, o procedimento envolve a inser\u00e7\u00e3o da agulha num substrato a uma velocidade especificada, normalmente 100 mm\/min, enquanto um medidor de for\u00e7a mede a for\u00e7a de penetra\u00e7\u00e3o. Os resultados do ensaio fornecem dados valiosos sobre a resist\u00eancia da agulha, que podem influenciar a escolha dos materiais utilizados para a agulha e a sua conce\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-aac0e6a e-con-full e-flex e-con e-child\" data-id=\"aac0e6a\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-224440a elementor-widget elementor-widget-heading\" data-id=\"224440a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Teste da for\u00e7a de arrastamento da agulha<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c107924 elementor-widget elementor-widget-text-editor\" data-id=\"c107924\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"2093\" data-end=\"2409\">Uma vez que a agulha tenha penetrado no substrato, a <strong data-start=\"2143\" data-end=\"2169\">ensaio de for\u00e7a de arrastamento da agulha<\/strong> mede a for\u00e7a de fric\u00e7\u00e3o que resiste ao movimento da agulha. A for\u00e7a de arrastamento \u00e9 importante para avaliar a suavidade com que a agulha se move atrav\u00e9s de tecidos ou materiais, o que \u00e9 fundamental para procedimentos m\u00e9dicos como injec\u00e7\u00f5es ou biopsias.<\/p>\n<p data-start=\"2411\" data-end=\"2708\">A for\u00e7a de arrastamento \u00e9 calculada atrav\u00e9s da an\u00e1lise do perfil de for\u00e7a gerado durante a inser\u00e7\u00e3o. Os resultados dos testes ajudam os fabricantes a afinar o design da agulha, assegurando que a agulha se move suavemente sem resist\u00eancia ou fric\u00e7\u00e3o excessivas, o que poderia afetar o desempenho geral e o conforto do utilizador.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\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<div class=\"elementor-element elementor-element-a6df764 e-flex e-con-boxed e-con e-parent\" data-id=\"a6df764\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ee171aa elementor-widget elementor-widget-heading\" data-id=\"ee171aa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Aparelhos e equipamentos para ensaios ISO 7864<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e5f91e3 e-grid e-con-full e-con e-child\" data-id=\"e5f91e3\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-40d8734 e-con-full e-flex e-con e-child\" data-id=\"40d8734\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15bd215 elementor-widget elementor-widget-heading\" data-id=\"15bd215\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Aparelho de medi\u00e7\u00e3o da for\u00e7a<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44c6d75 elementor-widget elementor-widget-text-editor\" data-id=\"44c6d75\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A norma ISO 7864 exige a utiliza\u00e7\u00e3o de um <strong data-start=\"2823\" data-end=\"2854\">aparelho de medi\u00e7\u00e3o da for\u00e7a<\/strong> equipado com uma c\u00e9lula de carga que mede com exatid\u00e3o as for\u00e7as durante os ensaios de penetra\u00e7\u00e3o da agulha e de for\u00e7a de arrastamento. O aparelho deve ser capaz de segurar a agulha com seguran\u00e7a e de a mover a uma velocidade especificada para simular com precis\u00e3o as condi\u00e7\u00f5es do mundo real.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b81349f elementor-widget elementor-widget-heading\" data-id=\"b81349f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Substrato para ensaio<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a869aa elementor-widget elementor-widget-text-editor\" data-id=\"8a869aa\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>O <strong data-start=\"3140\" data-end=\"3153\">substrato<\/strong> Os substratos utilizados nos ensaios ISO 7864 desempenham um papel fundamental para garantir resultados exactos e reprodut\u00edveis. Os substratos comuns incluem borracha de l\u00e1tex natural, poliuretano, borracha de silicone e polietileno, cada um selecionado com base na sua dureza, espessura e outras propriedades. Estes materiais imitam o tipo de resist\u00eancia que as agulhas enfrentariam durante procedimentos m\u00e9dicos reais.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f6c2007 elementor-widget elementor-widget-heading\" data-id=\"f6c2007\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Suporte da agulha e condi\u00e7\u00f5es de ensaio<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9dff1b6 elementor-widget elementor-widget-text-editor\" data-id=\"9dff1b6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A <strong data-start=\"3561\" data-end=\"3578\">suporte da agulha<\/strong> \u00e9 utilizado para fixar firmemente a agulha durante o ensaio. O ensaio deve ser realizado em condi\u00e7\u00f5es laboratoriais normais, com temperatura e humidade controladas, para garantir a consist\u00eancia dos ensaios. A agulha \u00e9 movida para dentro do substrato a uma velocidade constante at\u00e9 ser atingida a profundidade de penetra\u00e7\u00e3o desejada.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-16918e1 e-con-full e-flex e-con e-child\" data-id=\"16918e1\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e25a224 elementor-widget elementor-widget-image\" data-id=\"e25a224\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/www.puncturetest.com\/wp-content\/uploads\/2025\/02\/ISO-7864-Testing.webp\" class=\"attachment-large size-large wp-image-909\" alt=\"Ensaios ISO 7864\" srcset=\"https:\/\/www.puncturetest.com\/wp-content\/uploads\/2025\/02\/ISO-7864-Testing.webp 600w, https:\/\/www.puncturetest.com\/wp-content\/uploads\/2025\/02\/ISO-7864-Testing-300x100.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-46db03d elementor-widget elementor-widget-image\" data-id=\"46db03d\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"380\" src=\"https:\/\/www.puncturetest.com\/wp-content\/uploads\/2025\/02\/iso7864-needle-penetration-force-test.webp\" class=\"attachment-large size-large wp-image-910\" alt=\"ensaio de for\u00e7a de penetra\u00e7\u00e3o da agulha iso7864\" srcset=\"https:\/\/www.puncturetest.com\/wp-content\/uploads\/2025\/02\/iso7864-needle-penetration-force-test.webp 600w, https:\/\/www.puncturetest.com\/wp-content\/uploads\/2025\/02\/iso7864-needle-penetration-force-test-300x190.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\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<div class=\"elementor-element elementor-element-b39e9b8 e-flex e-con-boxed e-con e-parent\" data-id=\"b39e9b8\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e01a403 elementor-widget elementor-widget-heading\" data-id=\"e01a403\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Procedimentos de ensaio ISO 7864 - Realiza\u00e7\u00e3o de ensaios de penetrabilidade (ISO 7864 Anexo D)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ba15752 e-grid e-con-full e-con e-child\" data-id=\"ba15752\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ce95202 elementor-widget elementor-widget-text-editor\" data-id=\"ce95202\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>O processo de ensaio descrito na norma ISO 7864 foi concebido para avaliar tanto o <strong data-start=\"142\" data-end=\"170\">for\u00e7a de penetra\u00e7\u00e3o da agulha<\/strong> e <strong data-start=\"175\" data-end=\"196\">for\u00e7a de arrastamento da agulha<\/strong> atrav\u00e9s de uma s\u00e9rie estruturada de etapas.<\/p>\n<ol>\n<li data-start=\"166\" data-end=\"336\">\n<p data-start=\"169\" data-end=\"336\"><strong data-start=\"169\" data-end=\"192\">Montagem da agulha e prepara\u00e7\u00e3o do substrato<\/strong><br data-start=\"192\" data-end=\"195\" \/>A agulha \u00e9 montada de forma segura num <strong data-start=\"234\" data-end=\"265\">aparelho de medi\u00e7\u00e3o da for\u00e7a<\/strong> equipado com uma c\u00e9lula de carga que registar\u00e1 as for\u00e7as durante o ensaio. O <strong data-start=\"378\" data-end=\"391\">substrato<\/strong> \u00e9 colocado de forma segura no <strong data-start=\"418\" data-end=\"438\" data-is-only-node=\"\">suporte do substrato<\/strong>O substrato deve ser mantido firmemente no lugar, com uma \u00e1rea de penetra\u00e7\u00e3o alvo claramente vis\u00edvel. O substrato deve ser mantido firmemente no lugar, com uma \u00e1rea de penetra\u00e7\u00e3o alvo claramente vis\u00edvel.<\/p>\n<\/li>\n<li data-start=\"586\" data-end=\"781\">\n<p data-start=\"589\" data-end=\"781\"><strong data-start=\"589\" data-end=\"610\">Mover a agulha<\/strong><br data-start=\"610\" data-end=\"613\" \/>A agulha \u00e9 movida em dire\u00e7\u00e3o ao substrato a uma velocidade especificada, normalmente 100 mm\/min. A agulha come\u00e7a a penetrar no material e a for\u00e7a aplicada \u00e9 registada.<\/p>\n<\/li>\n<li data-start=\"783\" data-end=\"1012\">\n<p data-start=\"786\" data-end=\"1012\"><strong data-start=\"786\" data-end=\"821\">Medi\u00e7\u00e3o da for\u00e7a de penetra\u00e7\u00e3o e da for\u00e7a de arrasto<\/strong><br data-start=\"821\" data-end=\"824\" \/>O <strong data-start=\"831\" data-end=\"860\">for\u00e7a de penetra\u00e7\u00e3o inicial<\/strong> \u00e9 medida como a for\u00e7a de pico necess\u00e1ria para romper o material. Esta for\u00e7a corresponde \u00e0 for\u00e7a m\u00e1xima no momento da penetra\u00e7\u00e3o inicial. Depois de a agulha ter penetrado no material, continua a mover-se para a frente. O <strong data-start=\"1131\" data-end=\"1145\">for\u00e7a de arrasto<\/strong>ou a resist\u00eancia \u00e0 fric\u00e7\u00e3o que a agulha enfrenta quando se desloca atrav\u00e9s do substrato.<\/p>\n<\/li>\n<li data-start=\"1242\" data-end=\"1370\">\n<p data-start=\"1245\" data-end=\"1370\"><strong data-start=\"1245\" data-end=\"1270\">Retrair a agulha<\/strong><br data-start=\"1270\" data-end=\"1273\" \/>Depois de a agulha ter sido inserida at\u00e9 \u00e0 profundidade prescrita, \u00e9 retirada do substrato.<\/p>\n<\/li>\n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-536c212 e-con-full e-flex e-con e-child\" data-id=\"536c212\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1729f10 elementor-widget elementor-widget-video\" data-id=\"1729f10\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/6D2saICCxCA&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1c1302 elementor-widget elementor-widget-text-editor\" data-id=\"f1c1302\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Ap\u00f3s o teste:<\/p>\n<ol>\n<li data-start=\"1372\" data-end=\"1612\">\n<p data-start=\"1375\" data-end=\"1612\"><strong data-start=\"1375\" data-end=\"1410\">Recolha de dados e c\u00e1lculo<\/strong><br data-start=\"1410\" data-end=\"1413\" \/>Os dados s\u00e3o recolhidos durante o teste, e o <strong data-start=\"1459\" data-end=\"1478\">for\u00e7a de arrasto m\u00e9dia<\/strong> e <strong data-start=\"1483\" data-end=\"1509\" data-is-only-node=\"\">for\u00e7a de penetra\u00e7\u00e3o m\u00e1xima<\/strong> s\u00e3o calculados. Estes valores fornecem informa\u00e7\u00f5es importantes sobre o desempenho da agulha durante a inser\u00e7\u00e3o.<\/p>\n<\/li>\n<li data-start=\"1614\" data-end=\"1843\">\n<p data-start=\"1617\" data-end=\"1843\"><strong data-start=\"1617\" data-end=\"1638\">An\u00e1lise de resultados<\/strong><br data-start=\"1638\" data-end=\"1641\" \/>Os resultados dos ensaios s\u00e3o analisados para determinar os valores m\u00e9dios e os desvios-padr\u00e3o de ambos os <strong data-start=\"1742\" data-end=\"1756\">for\u00e7a de arrasto<\/strong> e <strong data-start=\"1761\" data-end=\"1782\" data-is-only-node=\"\">for\u00e7a de penetra\u00e7\u00e3o<\/strong>. Estes indicadores ajudam a avaliar o desempenho global da agulha.<\/p>\n<\/li>\n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\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<div class=\"elementor-element elementor-element-6821011 e-con-full e-flex e-con e-parent\" data-id=\"6821011\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-665057d elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"665057d\" data-element_type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-cta\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/www.puncturetest.com\/wp-content\/uploads\/2025\/02\/Elastomeric-Closures-Penetrability-Test-1024x256.webp);\" role=\"img\" aria-label=\"Teste de Penetrabilidade de Tampas Elastom\u00e9ricas\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tGaranta hoje a conformidade das suas aplica\u00e7\u00f5es m\u00e9dicas ou do seu controlo de qualidade\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tAssegurar a qualidade e a fiabilidade dos seus produtos de agulha atrav\u00e9s de <strong>for\u00e7a de penetra\u00e7\u00e3o da agulha<\/strong> e <strong>ensaio de for\u00e7a de arrastamento da agulha<\/strong> em conformidade com <strong>ISO 7864<\/strong> normas.<br><big>N\u00e3o comprometa a seguran\u00e7a - contacte-nos hoje para saber mais sobre os nossos instrumentos de teste de ponta que cumprem a norma ISO 7864.<\/big>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<a class=\"elementor-cta__button elementor-button elementor-size-\" href=\"https:\/\/www.puncturetest.com\/pt\/contact\/\">\n\t\t\t\t\t\tClique aqui\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>ISO 7864 Needle Penetration and Drag Force Test ISO 7864 is a crucial standard for testing the needle penetration and drag forces that needles must endure when inserted into various substrates. This test is essential for ensuring the reliability, safety, and performance of needles used in medical devices. What Is ISO 7864? ISO 7864 defines [&hellip;]<\/p>","protected":false},"author":3,"featured_media":0,"parent":974,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-906","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ISO 7864 Needle Penetration and Drag Force Test - Puncture Test<\/title>\n<meta name=\"description\" content=\"ISO 7864, the standard for needle penetration and drag force testing. 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