{"id":4219,"date":"2025-07-03T09:48:23","date_gmt":"2025-07-03T01:48:23","guid":{"rendered":"https:\/\/www.leakagetester.com\/?p=4219"},"modified":"2025-07-03T09:49:46","modified_gmt":"2025-07-03T01:49:46","slug":"methylene-blue-dye-leak-test-guide-for-flexible-packaging","status":"publish","type":"post","link":"https:\/\/www.leakagetester.com\/vi\/methylene-blue-dye-leak-test-guide-for-flexible-packaging\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ki\u1ec3m tra r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen cho bao b\u00ec d\u1ebbo"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"4219\" class=\"elementor elementor-4219\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6508e2e e-con-full e-flex e-con e-parent\" data-id=\"6508e2e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-47fc629 elementor-widget elementor-widget-text-editor\" data-id=\"47fc629\" 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>Vi\u1ec7c ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 trong bao b\u00ec m\u1ec1m l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, an to\u00e0n cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh ph\u00e1p l\u00fd \u2014 \u0111\u1eb7c bi\u1ec7t l\u00e0 trong l\u0129nh v\u1ef1c y t\u1ebf v\u00e0 d\u01b0\u1ee3c ph\u1ea9m. Trong s\u1ed1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n c\u00f3, ph\u01b0\u01a1ng ph\u00e1p <strong data-start=\"604\" data-end=\"636\">Th\u1eed nghi\u1ec7m r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen<\/strong> \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i nh\u1edd t\u00ednh \u0111\u01a1n gi\u1ea3n, d\u1ec5 quan s\u00e1t v\u00e0 hi\u1ec7u qu\u1ea3. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p m\u1ed9t h\u01b0\u1edbng d\u1eabn chuy\u00ean nghi\u1ec7p nh\u01b0ng d\u1ec5 hi\u1ec3u v\u1ec1 c\u00e1ch th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m thu\u1ed1c nhu\u1ed9m xanh metylen theo<a href=\"https:\/\/www.leakagetester.com\/vi\/standards\/astm-d3078\/\"> <strong data-start=\"820\" data-end=\"834\">Ti\u00eau chu\u1ea9n ASTMD3078<\/strong><\/a>, gi\u00fap nh\u00e2n vi\u00ean ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 k\u1ef9 s\u01b0 \u0111\u00f3ng g\u00f3i th\u1ef1c hi\u1ec7n c\u00e1c th\u1eed nghi\u1ec7m ch\u00ednh x\u00e1c v\u00e0 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p.<\/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-3ba447b elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"3ba447b\" 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=\"800\" height=\"800\" src=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/07\/LT-03-Leak-Tester-04_\u526f\u672c-800x800.webp\" class=\"attachment-large size-large wp-image-4221\" alt=\"Th\u1eed nghi\u1ec7m r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen\" srcset=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/07\/LT-03-Leak-Tester-04_\u526f\u672c-800x800.webp 800w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/07\/LT-03-Leak-Tester-04_\u526f\u672c-400x400.webp 400w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/07\/LT-03-Leak-Tester-04_\u526f\u672c-280x280.webp 280w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/07\/LT-03-Leak-Tester-04_\u526f\u672c-768x768.webp 768w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/07\/LT-03-Leak-Tester-04_\u526f\u672c-12x12.webp 12w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/07\/LT-03-Leak-Tester-04_\u526f\u672c.webp 1200w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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<div class=\"elementor-element elementor-element-a4dee4e e-flex e-con-boxed e-con e-parent\" data-id=\"a4dee4e\" 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-7b852d5 elementor-widget elementor-widget-heading\" data-id=\"7b852d5\" 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\">T\u1ed5ng quan v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen<\/h2>\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-cdad178 e-flex e-con-boxed e-con e-parent\" data-id=\"cdad178\" 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-73bbd8b elementor-widget elementor-widget-text-editor\" data-id=\"73bbd8b\" 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>C\u00e1c <strong data-start=\"1007\" data-end=\"1039\">Th\u1eed nghi\u1ec7m r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen<\/strong> l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ed1i v\u1edbi bao b\u00ec m\u1ec1m \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c v\u1ebft r\u00f2 r\u1ec9 l\u1edbn. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y bao g\u1ed3m vi\u1ec7c ng\u00e2m bao b\u00ec v\u00e0o dung d\u1ecbch xanh metylen trong bu\u1ed3ng ch\u00e2n kh\u00f4ng v\u00e0 quan s\u00e1t xem c\u00f3 s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a thu\u1ed1c nhu\u1ed9m hay s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a b\u1ecdt kh\u00ed hay kh\u00f4ng.<\/p><p>Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra d\u1ef1a tr\u00ean thi\u1ebft b\u1ecb \u0111\u00f2i h\u1ecfi ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c c\u1ea3m bi\u1ebfn cao c\u1ea5p, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y d\u1ef1a tr\u00ean m\u1ed9t nguy\u00ean l\u00fd \u0111\u01a1n gi\u1ea3n: trong m\u00f4i tr\u01b0\u1eddng ch\u00e2n kh\u00f4ng, b\u1ea5t k\u1ef3 khuy\u1ebft t\u1eadt hay l\u1ed7 h\u1ed5ng n\u00e0o tr\u00ean bao b\u00ec c\u0169ng s\u1ebd khi\u1ebfn thu\u1ed1c nhu\u1ed9m th\u1ea5m v\u00e0o ho\u1eb7c kh\u00f4ng kh\u00ed tho\u00e1t ra, t\u1ea1o th\u00e0nh c\u00e1c b\u1ecdt kh\u00ed c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c.<\/p><p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c ng\u00e0nh nh\u01b0:<\/p><ul><li>Bao b\u00ec thi\u1ebft b\u1ecb y t\u1ebf<\/li><li>Bao b\u00ec d\u01b0\u1ee3c ph\u1ea9m<\/li><li>Ki\u1ec3m tra \u0111\u1ed9 k\u00edn c\u1ee7a t\u00fai \u0111\u1ef1ng th\u1ef1c ph\u1ea9m d\u1ea1ng t\u00fai m\u1ec1m<\/li><li>Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng t\u00fai \u0111\u1ef1ng h\u00f3a ch\u1ea5t d\u00f9ng h\u00e0ng ng\u00e0y<\/li><\/ul><p>B\u00e0i ki\u1ec3m tra n\u00e0y \u0111\u01b0\u1ee3c tr\u00edch d\u1eabn r\u1ed9ng r\u00e3i trong c\u00e1c khung ph\u00e1p l\u00fd v\u00e0 c\u00f4ng nghi\u1ec7p, v\u1edbi <strong data-start=\"1793\" data-end=\"1807\">Ti\u00eau chu\u1ea9n ASTMD3078<\/strong> l\u00e0 ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c tr\u00edch d\u1eabn nhi\u1ec1u nh\u1ea5t.<\/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-2dd6ad7 e-flex e-con-boxed e-con e-parent\" data-id=\"2dd6ad7\" 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-32acf34 elementor-widget elementor-widget-heading\" data-id=\"32acf34\" 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\">C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e1y ki\u1ec3m tra r\u00f2 r\u1ec9: L\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p<\/h2>\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-d6ed7ab e-flex e-con-boxed e-con e-parent\" data-id=\"d6ed7ab\" 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-a3449ea elementor-widget elementor-widget-text-editor\" data-id=\"a3449ea\" 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>Vi\u1ec7c l\u1ef1a ch\u1ecdn h\u1ec7 th\u1ed1ng ki\u1ec3m tra r\u00f2 r\u1ec9 b\u1eb1ng ch\u00e2n kh\u00f4ng ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 t\u00ednh l\u1eb7p l\u1ea1i c\u1ee7a k\u1ebft qu\u1ea3 ki\u1ec3m tra. H\u00e0ng \u0111\u1ea7u <strong data-start=\"2040\" data-end=\"2078\">c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e1y ki\u1ec3m tra r\u00f2 r\u1ec9<\/strong> nh\u01b0 <strong data-start=\"2084\" data-end=\"2114\">C\u00f4ng ty TNHH Cell Instruments<\/strong> cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean d\u1ee5ng, tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ASTM D3078.<\/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-e014ba8 e-flex e-con-boxed e-con e-parent\" data-id=\"e014ba8\" 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-07105fa elementor-widget elementor-widget-heading\" data-id=\"07105fa\" 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\">Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb: Cell Instruments LT-03<\/h3>\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-f543150 e-con-full e-flex e-con e-parent\" data-id=\"f543150\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a56773a elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"a56773a\" 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=\"2240\" data-end=\"2387\">C\u00e1c<a href=\"https:\/\/www.leakagetester.com\/vi\/\"> <strong data-start=\"2244\" data-end=\"2265\">M\u00e1y ki\u1ec3m tra r\u00f2 r\u1ec9 LT-03<\/strong><\/a> c\u1ee7a Cell Instruments \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n <strong data-start=\"2332\" data-end=\"2364\">Th\u1eed nghi\u1ec7m r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen<\/strong>. C\u00e1c t\u00ednh n\u0103ng ch\u00ednh bao g\u1ed3m:<\/p><ul><li data-start=\"2391\" data-end=\"2447\">Bu\u1ed3ng ch\u00e2n kh\u00f4ng b\u1eb1ng acrylic trong su\u1ed1t cho t\u1ea7m nh\u00ecn 360\u00b0<\/li><li data-start=\"2450\" data-end=\"2492\">Ki\u1ec3m so\u00e1t ch\u00e2n kh\u00f4ng ch\u00ednh x\u00e1c (l\u00ean \u0111\u1ebfn -90 kPa)<\/li><li data-start=\"2495\" data-end=\"2538\">Th\u1eddi gian gi\u1eef ch\u00e2n kh\u00f4ng v\u00e0 th\u1eddi gian gi\u1ea3i ph\u00f3ng c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/li><li data-start=\"2541\" data-end=\"2599\">H\u1ec7 th\u1ed1ng an to\u00e0n t\u00edch h\u1ee3p v\u00e0 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ASTM D3078<\/li><\/ul><p data-start=\"2601\" data-end=\"2730\">Thi\u1ebft b\u1ecb n\u00e0y h\u1ed7 tr\u1ee3 c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00f3ng g\u00f3i quy m\u00f4 nh\u1ecf l\u1eabn quy m\u00f4 l\u1edbn, do \u0111\u00f3 r\u1ea5t ph\u00f9 h\u1ee3p cho c\u1ea3 ph\u00f2ng th\u00ed nghi\u1ec7m nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n l\u1eabn d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t.<\/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-1f88537 elementor-widget__width-initial elementor-widget elementor-widget-video\" data-id=\"1f88537\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/z4wEZMIKR7Q&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-284baf1 elementor-widget elementor-widget-video\" data-id=\"284baf1\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/z4wEZMIKR7Q&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>\n\t\t<div class=\"elementor-element elementor-element-6285b15 e-flex e-con-boxed e-con e-parent\" data-id=\"6285b15\" 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-e873bc9 elementor-widget elementor-widget-heading\" data-id=\"e873bc9\" 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\">H\u01b0\u1edbng d\u1eabn t\u1eebng b\u01b0\u1edbc: Th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen<\/h2>\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-b12cb33 e-flex e-con-boxed e-con e-parent\" data-id=\"b12cb33\" 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-490344a elementor-widget elementor-widget-text-editor\" data-id=\"490344a\" 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>\u0110\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c nh\u00f3m ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng trong vi\u1ec7c theo d\u00f5i <a href=\"https:\/\/store.astm.org\/d3078-02r21e01.html\" target=\"_blank\" rel=\"noopener\">Ti\u00eau chu\u1ea9n ASTMD3078<\/a> Th\u1ef1c t\u1ebf, \u0111\u00e2y l\u00e0 ph\u00e2n t\u00edch chi ti\u1ebft v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m s\u1eed d\u1ee5ng thu\u1ed1c nhu\u1ed9m xanh metylen:<\/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-f17a808 e-con-full e-flex e-con e-parent\" data-id=\"f17a808\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8c27bfc elementor-widget elementor-widget-text-editor\" data-id=\"8c27bfc\" 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>1. <strong data-start=\"2949\" data-end=\"2988\">Chu\u1ea9n b\u1ecb v\u00e0 x\u1eed l\u00fd m\u1eabu<\/strong><\/p><ul><li>\u0110\u1ea3m b\u1ea3o c\u00e1c m\u1eabu th\u1eed (bao b\u00ec m\u1ec1m) \u0111\u00e3 \u0111\u1ea1t tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng nhi\u1ec7t \u0111\u1ed9 <strong data-start=\"3055\" data-end=\"3075\">nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng<\/strong>.<\/li><li>M\u1eabu th\u1eed c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ed5 \u0111\u1ea7y s\u1ea3n ph\u1ea9m ho\u1eb7c \u0111\u1ec3 tr\u1ed1ng t\u00f9y thu\u1ed9c v\u00e0o m\u1ee5c \u0111\u00edch th\u1eed nghi\u1ec7m.<\/li><li>Chu\u1ea9n b\u1ecb <strong data-start=\"3173\" data-end=\"3204\">dung d\u1ecbch thu\u1ed1c nhu\u1ed9m xanh metylen<\/strong> (th\u01b0\u1eddng \u1edf n\u1ed3ng \u0111\u1ed9 0,1\u201311 TP3T).<\/li><\/ul><p>2. <strong data-start=\"3247\" data-end=\"3275\">Thi\u1ebft l\u1eadp bu\u1ed3ng ch\u00e2n kh\u00f4ng<\/strong><\/p><ul><li>\u0110\u1ed5 \u0111\u1ee7 dung d\u1ecbch thu\u1ed1c nhu\u1ed9m v\u00e0o bu\u1ed3ng ch\u00e2n kh\u00f4ng \u0111\u1ec3 <strong data-start=\"3330\" data-end=\"3368\">che ph\u1ee7 m\u1eabu \u00edt nh\u1ea5t 25 mm<\/strong>.<\/li><li>H\u00e3y \u0111\u1eb7t g\u00f3i h\u00e0ng v\u00e0o c\u1ea9n th\u1eadn v\u00e0 \u0111\u1ea3m b\u1ea3o ch\u00fang kh\u00f4ng che khu\u1ea5t l\u1eabn nhau trong qu\u00e1 tr\u00ecnh quan s\u00e1t.<\/li><\/ul><p>3. <strong data-start=\"3472\" data-end=\"3488\">T\u1ea1o ch\u00e2n kh\u00f4ng<\/strong><\/p><ul><li>\u0110\u00f3ng van x\u1ea3 v\u00e0 kh\u1edfi \u0111\u1ed9ng m\u00e1y b\u01a1m ch\u00e2n kh\u00f4ng \u0111\u1ec3 <strong data-start=\"3543\" data-end=\"3572\">gi\u1ea3m \u00e1p l\u1ef1c d\u1ea7n d\u1ea7n<\/strong><\/li><li>H\u00e3y quan s\u00e1t xem c\u00f3 v\u1ec7t b\u1ecdt kh\u00ed n\u00e0o tho\u00e1t ra t\u1eeb g\u00f3i h\u00e0ng trong qu\u00e1 tr\u00ecnh gi\u1ea3m \u00e1p su\u1ea5t hay kh\u00f4ng.<\/li><li>H\u00e3y ch\u00fa \u00fd \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng g\u00f3i h\u00e0ng ph\u1ed3ng l\u00ean qu\u00e1 m\u1ee9c, v\u00ec \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 nh\u1ea1y c\u1ee7a th\u1eed nghi\u1ec7m.<\/li><\/ul><p>4. <strong data-start=\"3760\" data-end=\"3779\">Gi\u1eef ch\u00e2n kh\u00f4ng<\/strong><\/p><ul><li>Gi\u1eef ch\u00e2n kh\u00f4ng trong <strong data-start=\"3808\" data-end=\"3833\">\u00edt nh\u1ea5t 30 gi\u00e2y<\/strong>. Th\u1eddi gian gi\u1eef c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u00e9o d\u00e0i h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p<\/li><li>\u00a0ph\u00e1t hi\u1ec7n nh\u1ea1y c\u1ea3m.<\/li><li>H\u00e3y quan s\u00e1t k\u1ef9 xem c\u00f3 b\u1ecdt kh\u00ed m\u1edbi xu\u1ea5t hi\u1ec7n hay thu\u1ed1c nhu\u1ed9m th\u1ea5m v\u00e0o trong th\u1eddi gian \u1ee7 hay kh\u00f4ng.<\/li><\/ul><p>5. <strong data-start=\"3985\" data-end=\"4008\">Ph\u00e1t h\u00e0nh v\u00e0 Ki\u1ec3m tra<\/strong><\/p><ul><li>T\u1eeb t\u1eeb x\u1ea3 ch\u00e2n kh\u00f4ng.<\/li><li>L\u1ea5y m\u1eabu ra v\u00e0 <strong data-start=\"4062\" data-end=\"4082\">ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng<\/strong> cho b\u1ea5t k\u1ef3 <strong data-start=\"4091\" data-end=\"4117\">m\u00e0u nhu\u1ed9m b\u00ean trong g\u00f3i h\u00e0ng<\/strong>, cho th\u1ea5y c\u00f3 r\u00f2 r\u1ec9.<\/li><\/ul>\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-ec7c6a6 e-flex e-con-boxed e-con e-parent\" data-id=\"ec7c6a6\" 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-758e99d elementor-widget elementor-widget-heading\" data-id=\"758e99d\" 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\">Gi\u1ea3i th\u00edch k\u1ebft qu\u1ea3<\/h2>\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-0c671c1 e-flex e-con-boxed e-con e-parent\" data-id=\"0c671c1\" 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-b005524 elementor-widget elementor-widget-text-editor\" data-id=\"b005524\" 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=\"4174\" data-end=\"4238\">Theo <strong data-start=\"4187\" data-end=\"4201\">Ti\u00eau chu\u1ea9n ASTMD3078<\/strong>, k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch nh\u01b0 sau:<\/p><ul><li data-start=\"4242\" data-end=\"4344\"><strong data-start=\"4242\" data-end=\"4251\">Th\u1ea5t b\u1ea1i:<\/strong> N\u1ebfu ph\u00e1t hi\u1ec7n c\u00f3 b\u1ecdt kh\u00ed trong qu\u00e1 tr\u00ecnh t\u1ea1o ch\u00e2n kh\u00f4ng ho\u1eb7c duy tr\u00ec \u00e1p su\u1ea5t ch\u00e2n kh\u00f4ng, ho\u1eb7c n\u1ebfu thu\u1ed1c nhu\u1ed9m th\u1ea5m v\u00e0o bao b\u00ec.<\/li><li data-start=\"4347\" data-end=\"4397\"><strong data-start=\"4347\" data-end=\"4356\">M\u1eadt kh\u1ea9u:<\/strong> Kh\u00f4ng c\u00f3 b\u1ecdt kh\u00ed v\u00e0 kh\u00f4ng c\u00f3 ch\u1ea5t nhu\u1ed9m b\u00ean trong.<\/li><\/ul><p data-start=\"4399\" data-end=\"4436\">A <strong data-start=\"4401\" data-end=\"4420\">b\u00e1o c\u00e1o chi ti\u1ebft<\/strong> c\u1ea7n bao g\u1ed3m:<\/p><ul><li data-start=\"4440\" data-end=\"4468\">M\u1ee9c ch\u00e2n kh\u00f4ng v\u00e0 th\u1eddi gian duy tr\u00ec<\/li><li data-start=\"4471\" data-end=\"4503\">S\u1ed1 l\u01b0\u1ee3ng m\u1eabu v\u00e0 s\u1ed1 l\u1ea7n kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u<\/li><li data-start=\"4506\" data-end=\"4531\">V\u1ecb tr\u00ed r\u00f2 r\u1ec9 (n\u1ebfu c\u00f3)<\/li><li data-start=\"4534\" data-end=\"4575\">Tuy\u00ean b\u1ed1 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ASTM D3078<\/li><\/ul>\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-b7c3b93 e-flex e-con-boxed e-con e-parent\" data-id=\"b7c3b93\" 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-f292052 elementor-widget elementor-widget-heading\" data-id=\"f292052\" 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\">T\u1ea1i sao vi\u1ec7c ki\u1ec3m tra r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen l\u1ea1i quan tr\u1ecdng<\/h2>\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-bdb9c4a e-flex e-con-boxed e-con e-parent\" data-id=\"bdb9c4a\" 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-ba7da28 elementor-widget elementor-widget-text-editor\" data-id=\"ba7da28\" 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=\"4630\" data-end=\"4688\">Vi\u1ec7c s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p methylene blue mang l\u1ea1i m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m:<\/p><ul><li data-start=\"4692\" data-end=\"4751\"><strong data-start=\"4692\" data-end=\"4715\">X\u00e1c nh\u1eadn b\u1eb1ng m\u1eaft th\u01b0\u1eddng<\/strong> kh\u00f4ng c\u1ea7n \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ph\u1ee9c t\u1ea1p<\/li><li data-start=\"4754\" data-end=\"4817\"><strong data-start=\"4754\" data-end=\"4772\">Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed<\/strong> d\u00e0nh cho c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m quy m\u00f4 nh\u1ecf v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng ki\u1ec3m tra s\u1ed1 l\u01b0\u1ee3ng l\u1edbn<\/li><li data-start=\"4820\" data-end=\"4902\"><strong data-start=\"4820\" data-end=\"4832\">Linh ho\u1ea1t<\/strong> tr\u00ean c\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m, bao g\u1ed3m v\u1ec9, t\u00fai v\u00e0 g\u00f3i nh\u1ecf<\/li><li data-start=\"4905\" data-end=\"4970\">Ho\u00e0n to\u00e0n <strong data-start=\"4911\" data-end=\"4924\">tu\u00e2n th\u1ee7<\/strong> theo c\u00e1c ti\u00eau chu\u1ea9n th\u1eed nghi\u1ec7m qu\u1ed1c t\u1ebf nh\u01b0 ASTM D3078<\/li><\/ul><p data-start=\"4972\" data-end=\"5155\"><strong data-start=\"4972\" data-end=\"4992\">D\u1ee5ng c\u1ee5 t\u1ebf b\u00e0o<\/strong> gi\u00fap c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u1edbi <strong data-start=\"5054\" data-end=\"5091\">ki\u1ec3m tra r\u00f2 r\u1ec9 theo y\u00eau c\u1ea7u <\/strong><\/p><p data-start=\"4972\" data-end=\"5155\"><strong data-start=\"5054\" data-end=\"5091\">thi\u1ebft b\u1ecb<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m v\u00e0 m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t c\u1ee5 th\u1ec3.<\/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-fb788c1 e-flex e-con-boxed e-con e-parent\" data-id=\"fb788c1\" 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-97212fb elementor-widget elementor-widget-heading\" data-id=\"97212fb\" 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\">Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\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-3669f82 e-flex e-con-boxed e-con e-parent\" data-id=\"3669f82\" 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-d4fda61 elementor-widget elementor-widget-text-editor\" data-id=\"d4fda61\" 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=\"5177\" data-end=\"5623\">C\u00e1c <strong data-start=\"5181\" data-end=\"5213\">Th\u1eed nghi\u1ec7m r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen<\/strong> l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng quan tr\u1ecdng gi\u00fap ph\u00e1t hi\u1ec7n s\u1edbm v\u00e0 ch\u00ednh x\u00e1c c\u00e1c l\u1ed7i trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 <strong data-start=\"5314\" data-end=\"5328\">Ti\u00eau chu\u1ea9n ASTMD3078<\/strong> c\u00e1c quy tr\u00ecnh v\u00e0 l\u1ef1a ch\u1ecdn c\u00e1c ngu\u1ed3n tin \u0111\u00e1ng tin c\u1eady <strong data-start=\"5363\" data-end=\"5401\">c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e1y ki\u1ec3m tra r\u00f2 r\u1ec9<\/strong>, ch\u1eb3ng h\u1ea1n nh\u01b0 <a href=\"https:\/\/www.leakagetester.com\/vi\/\"><strong data-start=\"5411\" data-end=\"5431\">D\u1ee5ng c\u1ee5 t\u1ebf b\u00e0o<\/strong><\/a>, c\u00e1c doanh nghi\u1ec7p c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n s\u1ea3n ph\u1ea9m v\u00e0 tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. \u0110\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c th\u1eed nghi\u1ec7m ch\u00ednh x\u00e1c, nh\u1ea5t qu\u00e1n v\u00e0 tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh, <strong data-start=\"5563\" data-end=\"5601\">M\u00e1y ki\u1ec3m tra r\u00f2 r\u1ec9 Cell Instruments LT-03<\/strong> l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh hi\u1ec7u qu\u1ea3.<\/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\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Vi\u1ec7c ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 trong bao b\u00ec m\u1ec1m l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m, an to\u00e0n cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh ph\u00e1p l\u00fd \u2014 \u0111\u1eb7c bi\u1ec7t l\u00e0 trong l\u0129nh v\u1ef1c y t\u1ebf v\u00e0 d\u01b0\u1ee3c ph\u1ea9m. Trong s\u1ed1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n c\u00f3, ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra r\u00f2 r\u1ec9 b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i nh\u1edd t\u00ednh \u0111\u01a1n gi\u1ea3n, d\u1ec5 quan s\u00e1t v\u00e0 hi\u1ec7u qu\u1ea3. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p m\u1ed9t h\u01b0\u1edbng d\u1eabn chuy\u00ean nghi\u1ec7p nh\u01b0ng d\u1ec5 hi\u1ec3u v\u1ec1 c\u00e1ch th\u1ef1c hi\u1ec7n ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra b\u1eb1ng thu\u1ed1c nhu\u1ed9m xanh metylen [\u2026]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-4219","post","type-post","status-publish","format-standard","hentry","category-test-method"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Methylene Blue Dye Leak Test for Flexible Packaging - Leakage Tester<\/title>\n<meta name=\"description\" content=\"This comprehensive guide explains the methylene blue dye leak test method based on ASTM D3078. 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