{"id":9854,"date":"2026-02-24T15:11:45","date_gmt":"2026-02-24T07:11:45","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/astm-f88-2\/"},"modified":"2026-03-12T16:36:09","modified_gmt":"2026-03-12T08:36:09","slug":"astm-f88","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/ta\/standard\/astm-f88\/","title":{"rendered":"ASTM F88"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Importance of Seal Strength and Tensile Testing<\/h2>\n\n\n\n<p>Flexible packaging is widely used across food, medical, and pharmaceutical sectors, where <strong data-start=\"1110\" data-end=\"1128\">seal integrity<\/strong> is essential for product safety and shelf life. According to ASTM F88, <strong data-start=\"1200\" data-end=\"1217\">seal strength<\/strong> not only validates sealing process consistency but also correlates with packaging performance, including <strong data-start=\"1323\" data-end=\"1340\">opening force<\/strong>, <strong data-start=\"1342\" data-end=\"1364\">barrier protection<\/strong>, and compliance with quality assurance standards.<\/p>\n\n\n\n<p>Beyond seal strength, materials engineers and QA professionals must understand the <strong data-start=\"1499\" data-end=\"1540\">tensile strength of polyethylene (PE)<\/strong> and other films. Whether you are conducting a <strong data-start=\"1587\" data-end=\"1620\">\u0baa\u0bbf\u0bb3\u0bbe\u0bb8\u0bcd\u0b9f\u0bbf\u0b95\u0bcd \u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0bb5\u0bb2\u0bbf\u0bae\u0bc8\u0b9a\u0bcd \u0b9a\u0bcb\u0ba4\u0ba9\u0bc8<\/strong> or evaluating the <strong data-start=\"1639\" data-end=\"1665\">tensile and elongation<\/strong> properties of multilayer laminates, having a robust testing setup is essential to detect defects and ensure compliance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Understanding ASTM F88: Procedures and Techniques<\/h2>\n\n\n\n<p>ASTM F88 defines three testing techniques\u2014A (Unsupported), B (Supported 90\u00b0), and C (Supported 180\u00b0)\u2014which are used depending on the seal design and test objective. Each technique simulates different real-world conditions of how seals might be stressed during opening or transportation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Procedure Highlights:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use a <strong>\u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0b9a\u0bcb\u0ba4\u0ba9\u0bc8\u0baf\u0bbe\u0bb3\u0bb0\u0bcd<\/strong> with a constant rate of jaw separation (200\u2013300 mm\/min).<\/li>\n\n\n\n<li>Ensure proper sample preparation: seals must be centrally aligned and free from pre-test stress.<\/li>\n\n\n\n<li>Measure <strong>\u0b85\u0ba4\u0bbf\u0b95\u0baa\u0b9f\u0bcd\u0b9a\u0baa\u0bcd \u0baa\u0b9f\u0bc8<\/strong> and optionally the <strong>average seal strength<\/strong> if required.<\/li>\n\n\n\n<li>Report failure modes such as <strong>adhesive failure, cohesive failure<\/strong>, \u0b85\u0bb2\u0bcd\u0bb2\u0ba4\u0bc1 <strong>delamination<\/strong>.<\/li>\n\n\n\n<li>In some cases, plotting <strong>force vs. grip travel<\/strong> enhances result interpretation.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"Remove the standard sample clamps from TST-01 tensile tester\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/5dWbUy63HPM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p>Cell Instruments recommends using the<a href=\"https:\/\/www.celtec.cn\/newsinfo\/8155328.html\" target=\"_blank\" rel=\"noopener nofollow\"> <strong data-start=\"2649\" data-end=\"2674\">TST-01 \u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0b9a\u0bcb\u0ba4\u0ba9\u0bc8\u0baf\u0bbe\u0bb3\u0bb0\u0bcd<\/strong><\/a> for ASTM F88 testing. This equipment offers high precision and programmable control, ensuring accurate measurement of <strong data-start=\"2793\" data-end=\"2810\">seal strength<\/strong>, <strong data-start=\"2812\" data-end=\"2832\">\u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0bb5\u0bb2\u0bbf\u0bae\u0bc8<\/strong>, \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd <strong data-start=\"2838\" data-end=\"2865\">\u0ba8\u0bc0\u0bb3\u0bae\u0bbf\u0b95\u0bc1 \u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8\u0b9a\u0bcd \u0b9a\u0bcb\u0ba4\u0ba9\u0bc8<\/strong> data. It meets the \u00b12% accuracy requirement and supports programmable grip travel ranges, enabling advanced data capture and reporting.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Film Tensile Strength and Elongation Testing: Standards and Methods<\/h2>\n\n\n\n<p>While ASTM F88 focuses on seal strength, film tensile performance is governed by <strong data-start=\"3161\" data-end=\"3174\">ASTM D882<\/strong>, the standard test method for determining the tensile properties of thin plastic sheeting. Understanding the <strong data-start=\"3284\" data-end=\"3316\">\u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0bb5\u0bb2\u0bbf\u0bae\u0bc8 \u0b85\u0bb3\u0bb5\u0bc0\u0b9f\u0bc1<\/strong> \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd <strong data-start=\"3321\" data-end=\"3335\">\u0ba8\u0bc0\u0bb3\u0bae\u0bbe\u0ba4\u0bb2\u0bcd<\/strong> characteristics is essential for selecting packaging materials and validating heat seal designs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Key Metrics Include:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p data-start=\"3462\" data-end=\"3573\"><strong data-start=\"3462\" data-end=\"3520\">Tensile strength of polyethylene (PE tensile strength)<\/strong>: Essential for load-bearing capacity and durability.<\/p><\/li>\n\n\n\n<li><p data-start=\"3462\" data-end=\"3573\"><strong data-start=\"3576\" data-end=\"3599\" style=\"font-size: 1rem;\">\u0b89\u0b9f\u0bc8\u0ba4\u0bb2\u0bbf\u0bb2\u0bcd \u0ba8\u0bc0\u0bb3\u0bae\u0bcd<\/strong><span style=\"font-size: 1rem;\">: Indicates material flexibility and resistance to tearing.<\/span><\/p><\/li>\n\n\n\n<li><p data-start=\"3462\" data-end=\"3573\"><strong data-start=\"3661\" data-end=\"3692\">Tensile and elongation test<\/strong> outcomes**: Help optimize seal geometry and packaging line parameters.<\/p><\/li>\n<\/ul>\n\n\n\n<p>In practical terms, <strong data-start=\"3785\" data-end=\"3824\">how do you measure tensile strength<\/strong>? A film strip is clamped and stretched at a constant rate until it breaks. The tensile tester records the maximum stress the sample can withstand and calculates the elongation percentage at break.<\/p>\n\n\n\n<p>\u0ba4\u0bbf <strong data-start=\"4027\" data-end=\"4052\">TST-01 \u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0b9a\u0bcb\u0ba4\u0ba9\u0bc8\u0baf\u0bbe\u0bb3\u0bb0\u0bcd<\/strong> is well-suited for this type of testing, with high-resolution load cells, real-time curve plotting, and built-in software to analyze <strong data-start=\"4186\" data-end=\"4211\">\u0ba4\u0bbf\u0bb0\u0bc8\u0baa\u0bcd\u0baa\u0b9f \u0ba8\u0bc0\u0b9f\u0bcd\u0b9a\u0bbf \u0bb5\u0bb2\u0bbf\u0bae\u0bc8<\/strong> \u0bae\u0bb1\u0bcd\u0bb1\u0bc1\u0bae\u0bcd <strong data-start=\"4216\" data-end=\"4238\">\u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0bae\u0bcd \u0baa\u0bb1\u0bcd\u0bb1\u0bb5\u0bc8\u0baa\u0bcd\u0baa\u0bc1 \u0bb5\u0bb2\u0bbf\u0bae\u0bc8<\/strong> in a single platform.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Packaging Test Equipment: Enhancing Quality and Compliance<\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.packqc.com\/wp-content\/uploads\/2025\/07\/TST-01-Tensile-Tester-1_11zon-200x300.webp\" alt=\"The plastic tensile strength test about ASTM F88.\"\/><\/figure>\n\n\n\n<p>High-quality <strong data-start=\"4343\" data-end=\"4371\">packaging test equipment<\/strong> is vital for labs performing routine tests or development work. Cell Instruments provides solutions tailored for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p data-start=\"4489\" data-end=\"4548\"><strong data-start=\"4489\" data-end=\"4522\">Plastic tensile strength test<\/strong> and elongation analysis<\/p><\/li>\n\n\n\n<li><p data-start=\"4489\" data-end=\"4548\"><strong data-start=\"4551\" data-end=\"4573\" style=\"font-size: 1rem;\">Heat seal strength<\/strong><span style=\"font-size: 1rem;\"> validation via ASTM F88<\/span><\/p><\/li>\n\n\n\n<li><p data-start=\"4489\" data-end=\"4548\"><span style=\"font-size: 1rem;\">Process capability evaluation and production line optimization<\/span><\/p><\/li>\n<\/ul>\n\n\n\n<p>\u0ba4\u0bbf <strong data-start=\"4670\" data-end=\"4680\">\u0b9f\u0bbf.\u0b8e\u0bb8\u0bcd.\u0b9f\u0bbf-01<\/strong> not only complies with both ASTM F88 and ASTM D882 but also minimizes operator error through automation and digital control. With customizable grips and cutting templates, it adapts to a wide range of packaging formats and material types.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why Choose Cell Instruments for ASTM F88 and Tensile Testing?<\/h2>\n\n\n\n<p>At Cell Instruments, we understand that precision, repeatability, and compliance are non-negotiable for quality assurance professionals. Whether you work in food safety, pharmaceuticals, or medical device packaging, our testing instruments are designed to meet stringent global standards and deliver <strong data-start=\"5292\" data-end=\"5332\">accurate tensile and elongation test<\/strong> results every time.<\/p>\n\n\n\n<p>With a deep understanding of materials science, we also offer <strong data-start=\"5416\" data-end=\"5456\">custom automation and test solutions<\/strong>, helping you adapt to evolving regulatory requirements and production environments.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tContact Us Get ASTM F88 Test Method\t\t\t\t<\/h2>\n\n\n\n<p>From validating <strong data-start=\"5578\" data-end=\"5600\">\u0bb5\u0bc6\u0baa\u0bcd\u0baa\u0bae\u0bcd \u0baa\u0bb1\u0bcd\u0bb1\u0bb5\u0bc8\u0baa\u0bcd\u0baa\u0bc1 \u0bb5\u0bb2\u0bbf\u0bae\u0bc8<\/strong> \u0baa\u0baf\u0ba9\u0bcd\u0baa\u0b9f\u0bc1\u0ba4\u0bcd\u0ba4\u0bbf <strong data-start=\"5607\" data-end=\"5619\">ASTM F88<\/strong> to measuring the <strong data-start=\"5637\" data-end=\"5673\">tensile strength of polyethylene<\/strong>, understanding the mechanical properties of packaging films is essential for ensuring product integrity. Through reliable testing methods and high-precision instruments like the <a href=\"https:\/\/www.packqc.com\/ta\/applications\/plastic-tensile-strength-test\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"5852\" data-end=\"5877\">TST-01 \u0b87\u0bb4\u0bc1\u0bb5\u0bbf\u0b9a\u0bc8 \u0b9a\u0bcb\u0ba4\u0ba9\u0bc8\u0baf\u0bbe\u0bb3\u0bb0\u0bcd<\/strong><\/a>, Cell Instruments supports manufacturers and quality control teams in delivering safe, compliant, and high-performance packaging solutions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0b85\u0b9f\u0bbf\u0b95\u0bcd\u0b95\u0b9f\u0bbf \u0b95\u0bc7\u0b9f\u0bcd\u0b95\u0baa\u0bcd\u0baa\u0b9f\u0bc1\u0bae\u0bcd \u0b95\u0bc7\u0bb3\u0bcd\u0bb5\u0bbf\u0b95\u0bb3\u0bcd<\/h2>\n\n\n\n<p>1. What is ASTM F88 and why is it important in packaging?<br>ASTM F88 is the standard test method for measuring the seal strength of flexible barrier materials. It ensures that heat-sealed packages maintain integrity during handling and storage, making it crucial for industries like food, pharmaceuticals, and medical devices.<\/p>\n\n\n\n<p>2. How do you measure seal strength using ASTM F88?<br>Seal strength is measured by placing the sealed sample in a tensile tester and pulling it at a constant speed (200\u2013300 mm\/min) until it separates. The peak force required to break the seal is recorded as the seal strength. Techniques A, B, or C may be used depending on the sample orientation.<\/p>\n\n\n\n<p>3. What equipment is used for ASTM F88 testing?<br>A tensile tester, such as the TST-01 Tensile Tester by Cell Instruments, is used. It must have constant-rate jaw separation, precise load sensors (\u00b12% accuracy), and the ability to calculate or display average seal force and force\u2013displacement curves.<\/p>\n\n\n\n<p>4. What is the difference between seal strength and tensile strength?<br>Seal strength refers to the force needed to separate sealed layers in a package, while tensile strength measures how much stress a film or material can withstand before breaking. Both are critical for packaging performance but evaluate different material properties.<\/p>\n\n\n\n<p>5. Can one machine perform both ASTM F88 and D882 tests?<br>Yes. Advanced machines like the TST-01 Tensile Tester can perform both heat seal strength tests (ASTM F88) and film tensile strength tests (ASTM D882). With programmable test settings and interchangeable grips, it offers a versatile solution for complete film package evaluation.<\/p>","protected":false},"featured_media":7305,"parent":0,"template":"","meta":{"_acf_changed":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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-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-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-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-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-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-gradient":""}}},"class_list":["post-9854","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/ta\/wp-json\/wp\/v2\/standard\/9854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/ta\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/ta\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/ta\/wp-json\/wp\/v2\/media\/7305"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/ta\/wp-json\/wp\/v2\/media?parent=9854"}],"curies":[{"name":"\u0b9f\u0baa\u0bbf\u0bb3\u0bcd\u0baf\u0bc2\u0baa\u0bbf","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}