{"id":4445,"date":"2025-12-11T15:08:25","date_gmt":"2025-12-11T07:08:25","guid":{"rendered":"https:\/\/www.leakagetester.com\/?page_id=4445"},"modified":"2025-12-11T15:28:48","modified_gmt":"2025-12-11T07:28:48","slug":"astm-e493","status":"publish","type":"page","link":"https:\/\/www.leakagetester.com\/vi\/standards\/astm-e493\/","title":{"rendered":"Ti\u00eau chu\u1ea9n ASTM E493"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"4445\" class=\"elementor elementor-4445\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40854497 e-con-full e-flex e-con e-parent\" data-id=\"40854497\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7b6e2650 e-con-full e-flex e-con e-child\" data-id=\"7b6e2650\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1ed62b75 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"1ed62b75\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;}\" 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\">Ti\u00eau chu\u1ea9n ASTM E493<\/h1>\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-649c5ca3 e-con-full e-flex e-con e-child\" data-id=\"649c5ca3\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-528d414f elementor-widget elementor-widget-heading\" data-id=\"528d414f\" 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<h5 class=\"elementor-heading-title elementor-size-default\">Quy tr\u00ecnh ti\u00eau chu\u1ea9n \u0111\u1ec3 ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 b\u1eb1ng m\u00e1y d\u00f2 r\u00f2 r\u1ec9 k\u1ebft h\u1ee3p v\u1edbi m\u00e1y quang ph\u1ed5 kh\u1ed1i \u1edf ch\u1ebf \u0111\u1ed9 ki\u1ec3m tra t\u1eeb trong ra ngo\u00e0i<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4227f1f3 elementor-tablet-align-center elementor-mobile-align-center elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-button\" data-id=\"4227f1f3\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeIn&quot;,&quot;_animation_delay&quot;:200}\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/vi\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Y\u00eau c\u1ea7u b\u00e1o gi\u00e1<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-7f37671f e-flex e-con-boxed e-con e-parent\" data-id=\"7f37671f\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7479e6a9 e-con-full e-flex e-con e-child\" data-id=\"7479e6a9\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c1f01b8 elementor-widget elementor-widget-heading\" data-id=\"2c1f01b8\" 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\u00f3m t\u1eaft chu\u1ea9n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7ff4e2 elementor-widget elementor-widget-text-editor\" data-id=\"a7ff4e2\" 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=\"424\" data-end=\"1049\">Ti\u00eau chu\u1ea9n ASTM E493 quy \u0111\u1ecbnh m\u1ed9t quy tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 r\u00f2 r\u1ec9 trong c\u00e1c b\u1ed9 ph\u1eadn k\u00edn b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u00e1y d\u00f2 r\u00f2 r\u1ec9 k\u1ebft h\u1ee3p m\u00e1y quang ph\u1ed5 kh\u1ed1i \u1edf ch\u1ebf \u0111\u1ed9 \"inside-out\". C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 vi \u0111i\u1ec7n t\u1eed, thi\u1ebft b\u1ecb y t\u1ebf v\u00e0 thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c \u0111\u1ec1u d\u1ef1a v\u00e0o ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u00e1c g\u00f3i s\u1ea3n ph\u1ea9m k\u00edn kh\u00ed. B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc c\u1ee7a ti\u00eau chu\u1ea9n ASTM E493, c\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c v\u1ebft r\u00f2 r\u1ec9 nh\u1ecf, t\u00ednh to\u00e1n t\u1ed1c \u0111\u1ed9 r\u00f2 r\u1ec9 th\u1ef1c t\u1ebf v\u00e0 duy tr\u00ec \u0111\u1ed9 tin c\u1eady c\u1ee7a s\u1ea3n ph\u1ea9m.<\/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-58d7dfdf e-con-full e-flex e-con e-child\" data-id=\"58d7dfdf\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4aba77f5 elementor-widget elementor-widget-image\" data-id=\"4aba77f5\" 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\t<a href=\"https:\/\/www.astm.org\/d3078-02r21e01.html\" target=\"_blank\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E493.webp\" class=\"attachment-medium size-medium wp-image-4448\" alt=\"Ti\u00eau chu\u1ea9n ASTM E493\" srcset=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E493.webp 600w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E493-18x6.webp 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-38d9a2dc e-flex e-con-boxed e-con e-parent\" data-id=\"38d9a2dc\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-22b1040c e-con-full e-flex e-con e-child\" data-id=\"22b1040c\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c1b4a01 elementor-widget elementor-widget-heading\" data-id=\"2c1b4a01\" 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\">M\u00f4 t\u1ea3 chu\u1ea9n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dbe846b elementor-widget elementor-widget-text-editor\" data-id=\"2dbe846b\" 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=\"1686\" data-end=\"2154\">Ti\u00eau chu\u1ea9n ASTM E493 \u00e1p d\u1ee5ng cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c ni\u00eam phong tr\u01b0\u1edbc khi th\u1eed nghi\u1ec7m, bao g\u1ed3m ch\u1ea5t b\u00e1n d\u1eabn, r\u01a1le, c\u00e1c b\u1ed9 ph\u1eadn ph\u00e1o hoa v\u00e0 c\u1ea3m bi\u1ebfn c\u00f3 \u0111\u1ed9 tin c\u1eady cao. Ti\u00eau chu\u1ea9n n\u00e0y y\u00eau c\u1ea7u m\u1eabu th\u1eed ph\u1ea3i ch\u1ee9a kh\u00ed heli \u1edf \u00e1p su\u1ea5t b\u00ean trong \u0111\u00e3 bi\u1ebft ho\u1eb7c c\u00f3 th\u1ec3 t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c trong qu\u00e1 tr\u00ecnh \u0111o l\u01b0\u1eddng. N\u1ebfu kh\u00f4ng th\u1ec3 n\u1ea1p kh\u00ed v\u00e0o b\u1ed9 ph\u1eadn tr\u01b0\u1edbc khi ni\u00eam phong, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1ebd \u0111\u01b0a kh\u00ed heli v\u00e0o th\u00f4ng qua quy tr\u00ecnh b\u01a1m kh\u00ed c\u00f3 ki\u1ec3m so\u00e1t. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng ngay c\u1ea3 nh\u1eefng khe h\u1edf nh\u1ecf nh\u1ea5t tr\u00ean th\u00e0nh thi\u1ebft b\u1ecb c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n.<\/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-346b4bef e-con-full e-flex e-con e-child\" data-id=\"346b4bef\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8704851 elementor-widget elementor-widget-text-editor\" data-id=\"8704851\" 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=\"2156\" data-end=\"2336\">Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y n\u00eau ra hai k\u1ef9 thu\u1eadt ch\u00ednh:<\/p><ul><li data-start=\"2156\" data-end=\"2336\"><strong data-start=\"2204\" data-end=\"2221\">Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m A<\/strong> s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p b\u01a1m kh\u00ed heli \u0111\u1ec3 \u0111\u01b0a kh\u00ed \u0111\u00e1nh d\u1ea5u v\u00e0o.<\/li><li data-start=\"2156\" data-end=\"2336\"><strong data-start=\"2273\" data-end=\"2290\">Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m B<\/strong> s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p b\u01a1m \u0111\u1ea7y kh\u00ed heli tr\u01b0\u1edbc khi h\u00e0n k\u00edn.<\/li><\/ul><p data-start=\"2338\" data-end=\"2533\">Trong c\u1ea3 hai tr\u01b0\u1eddng h\u1ee3p, b\u1ed9 ph\u1eadn \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u1ed9t bu\u1ed3ng ch\u00e2n kh\u00f4ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u00e1y d\u00f2 r\u00f2 r\u1ec9 c\u1ee7a m\u00e1y quang ph\u1ed5 kh\u1ed1i. Khi c\u00f3 r\u00f2 r\u1ec9, m\u00e1y d\u00f2 s\u1ebd \u0111o l\u01b0u l\u01b0\u1ee3ng heli v\u00e0 hi\u1ec3n th\u1ecb t\u1ed1c \u0111\u1ed9 r\u00f2 r\u1ec9.<\/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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3ae6b8a e-flex e-con-boxed e-con e-parent\" data-id=\"3ae6b8a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-8f24e53 e-con-full e-flex e-con e-child\" data-id=\"8f24e53\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6905cde e-con-full e-flex e-con e-child\" data-id=\"6905cde\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61e733b elementor-widget elementor-widget-heading\" data-id=\"61e733b\" 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\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m A: Quy tr\u00ecnh nung<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5930041 elementor-widget elementor-widget-heading\" data-id=\"5930041\" 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<span class=\"elementor-heading-title elementor-size-default\">Ki\u1ec3m tra vi\u1ec7c chu\u1ea9n b\u1ecb chi ti\u1ebft b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p phun c\u00e1t<\/span>\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-a52d762 e-con-full e-flex e-con e-child\" data-id=\"a52d762\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6e9e0cd elementor-widget elementor-widget-text-editor\" data-id=\"6e9e0cd\" 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=\"2578\" data-end=\"2923\">Ph\u01b0\u01a1ng ph\u00e1p b\u01a1m kh\u00ed \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng khi kh\u00f4ng th\u1ec3 n\u1ea1p kh\u00ed tr\u1ef1c ti\u1ebfp v\u00e0o b\u00ean trong. C\u00e1c b\u1ed9 ph\u1eadn \u0111\u00e3 \u0111\u01b0\u1ee3c ni\u00eam phong s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1eb7t trong bu\u1ed3ng \u00e1p su\u1ea5t heli trong m\u1ed9t kho\u1ea3ng th\u1eddi gian \u0111\u00e3 \u0111\u1ecbnh tr\u01b0\u1edbc. Th\u1eddi gian b\u01a1m kh\u00ed, \u00e1p su\u1ea5t v\u00e0 th\u1eddi gian gi\u1eef \u00e1p su\u1ea5t c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 nh\u1ea1y. Vi\u1ec7c ki\u1ec3m so\u00e1t kh\u00f4ng ch\u1eb7t ch\u1ebd c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng nh\u1ea5t qu\u00e1n, do \u0111\u00f3, ph\u01b0\u01a1ng ph\u00e1p t\u1ed1t nh\u1ea5t l\u00e0 chu\u1ea9n h\u00f3a c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y gi\u1eefa c\u00e1c l\u00f4 s\u1ea3n ph\u1ea9m.<\/p><p data-start=\"2925\" data-end=\"3330\">Sau khi b\u01a1m kh\u00ed, nh\u00e2n vi\u00ean v\u1eadn h\u00e0nh ph\u1ea3i lo\u1ea1i b\u1ecf kh\u00ed heli b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t b\u1eb1ng c\u00e1ch x\u1ea3 kh\u00ed nit\u01a1 ho\u1eb7c s\u1ea5y kh\u00f4 c\u00f3 ki\u1ec3m so\u00e1t. B\u01b0\u1edbc n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n kh\u00ed heli b\u00e1m d\u00ednh t\u1ea1o ra t\u00edn hi\u1ec7u n\u1ec1n tr\u00ean b\u1ed9 d\u00f2. Sau khi \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch, c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u00e0o bu\u1ed3ng th\u1eed nghi\u1ec7m \u0111\u1ec3 ti\u1ebfn h\u00e0nh \u0111o \u0111\u1ea1c. C\u00e1c k\u1ef9 s\u01b0 ghi l\u1ea1i t\u1ed1c \u0111\u1ed9 r\u00f2 r\u1ec9 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb v\u00e0 kho\u1ea3ng th\u1eddi gian tr\u00f4i qua t\u1eeb khi b\u01a1m kh\u00ed \u0111\u1ebfn khi th\u1eed nghi\u1ec7m, v\u00ec nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c t\u00ednh to\u00e1n t\u1ed1c \u0111\u1ed9 r\u00f2 r\u1ec9 th\u1ef1c t\u1ebf.<\/p><p data-start=\"3332\" data-end=\"3367\">Ti\u00eau chu\u1ea9n \u0111\u01b0a ra ph\u01b0\u01a1ng tr\u00ecnh:<\/p><p><img decoding=\"async\" class=\"size-full wp-image-4449 aligncenter\" src=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E493-Test-Method-A.webp\" alt=\"Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ASTM E493 A\" width=\"302\" height=\"65\" srcset=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E493-Test-Method-A.webp 302w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E493-Test-Method-A-18x4.webp 18w\" sizes=\"(max-width: 302px) 100vw, 302px\" \/><\/p><p data-start=\"3437\" data-end=\"3581\">M\u1ed1i quan h\u1ec7 n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1ef7 l\u1ec7 r\u00f2 r\u1ec9 th\u1ef1c t\u1ebf \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n v\u1eabn \u1edf m\u1ee9c th\u1eadn tr\u1ecdng, \u0111\u1ed3ng th\u1eddi t\u00edch h\u1ee3p s\u1eb5n h\u1ec7 s\u1ed1 an to\u00e0n cho c\u00e1c b\u1ed9 ph\u1eadn quan tr\u1ecdng.<\/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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7b391d0 e-flex e-con-boxed e-con e-parent\" data-id=\"7b391d0\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-b327d60 e-con-full e-flex e-con e-child\" data-id=\"b327d60\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-91fcac1 elementor-widget elementor-widget-text-editor\" data-id=\"91fcac1\" 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=\"3631\" data-end=\"3932\">Khi thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u1ea1p kh\u00ed heli tr\u01b0\u1edbc khi ni\u00eam phong, Ph\u01b0\u01a1ng ph\u00e1p B mang l\u1ea1i quy tr\u00ecnh l\u00e0m vi\u1ec7c tr\u1ef1c ti\u1ebfp h\u01a1n. Chi ti\u1ebft \u0111\u01b0\u1ee3c n\u1ea1p kh\u00ed \u1edf \u00e1p su\u1ea5t \u0111\u00e3 bi\u1ebft, sau \u0111\u00f3 \u0111\u01b0\u1ee3c ni\u00eam phong v\u00e0 ki\u1ec3m tra trong c\u00f9ng \u0111i\u1ec1u ki\u1ec7n \u201ct\u1eeb trong ra ngo\u00e0i\u201d nh\u01b0 Ph\u01b0\u01a1ng ph\u00e1p A. Do kh\u00f4ng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u201cbombing\u201d, n\u00ean trong ph\u00e9p t\u00ednh s\u1ebd lo\u1ea1i b\u1ecf ngo\u1eb7c \u0111\u01a1n \u0111\u1ea7u ti\u00ean trong ph\u01b0\u01a1ng tr\u00ecnh tr\u01b0\u1edbc \u0111\u00f3:<\/p>\n<p data-start=\"3631\" data-end=\"3932\"><img decoding=\"async\" class=\"size-full wp-image-4450 aligncenter\" src=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E439-Method-B.webp\" alt=\"Ph\u01b0\u01a1ng ph\u00e1p B theo ti\u00eau chu\u1ea9n ASTM E439\" width=\"150\" height=\"58\" srcset=\"https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E439-Method-B.webp 150w, https:\/\/www.leakagetester.com\/wp-content\/uploads\/2025\/12\/ASTM-E439-Method-B-18x7.webp 18w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/p>\n<p data-start=\"3974\" data-end=\"4085\">Do \u0111\u00e3 bi\u1ebft \u00e1p su\u1ea5t b\u00ean trong, Ph\u01b0\u01a1ng ph\u00e1p B th\u01b0\u1eddng gi\u00fap ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng ch\u1eb7t ch\u1ebd h\u01a1n v\u00e0 r\u00fat ng\u1eafn th\u1eddi gian chu k\u1ef3.<\/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-d9a5245 e-con-full e-flex e-con e-child\" data-id=\"d9a5245\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6cf77b9 e-con-full e-flex e-con e-child\" data-id=\"6cf77b9\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-99feec5 elementor-widget elementor-widget-heading\" data-id=\"99feec5\" 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\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m B: B\u01a1m \u0111\u1ea7y heli tr\u01b0\u1edbc<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a8993b elementor-widget elementor-widget-heading\" data-id=\"2a8993b\" 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<span class=\"elementor-heading-title elementor-size-default\">Ph\u1ea7n chu\u1ea9n b\u1ecb ch\u00ednh l\u00e0 vi\u1ec7c \u0111\u1ed5 s\u1eb5n<\/span>\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-897aaf5 e-flex e-con-boxed e-con e-parent\" data-id=\"897aaf5\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23d08cc elementor-widget elementor-widget-heading\" data-id=\"23d08cc\" 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\">\u00dd ngh\u0129a \u0111\u1ed1i v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 tin c\u1eady<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48e4aa6 elementor-widget elementor-widget-text-editor\" data-id=\"48e4aa6\" 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=\"4138\" data-end=\"4459\">C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t \u00e1p d\u1ee5ng ti\u00eau chu\u1ea9n ASTM E493 \u0111\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c ni\u00eam phong k\u00edn ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 x\u00e2m nh\u1eadp l\u00e2u d\u00e0i c\u1ee7a kh\u00f4ng kh\u00ed, h\u01a1i n\u01b0\u1edbc v\u00e0 c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m. Ngay c\u1ea3 nh\u1eefng r\u00f2 r\u1ec9 nh\u1ecf nh\u1ea5t c\u0169ng c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00e1c linh ki\u1ec7n vi \u0111i\u1ec7n t\u1eed ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn y t\u1ebf nh\u1ea1y c\u1ea3m theo th\u1eddi gian. Vi\u1ec7c th\u1ef1c hi\u1ec7n \u0111\u00fang ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap b\u1ea3o \u0111\u1ea3m hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c s\u1ef1 c\u1ed1 x\u1ea3y ra trong th\u1ef1c t\u1ebf.<\/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-c6c9624 elementor-widget elementor-widget-heading\" data-id=\"c6c9624\" 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 y\u1ebfu t\u1ed1 g\u00e2y c\u1ea3n tr\u1edf v\u00e0 c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95095df elementor-widget elementor-widget-text-editor\" data-id=\"95095df\" 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=\"4855\" data-end=\"5327\">L\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t, b\u1ee5i b\u1ea9n, v\u1eadt li\u1ec7u polymer v\u00e0 b\u1ec1 m\u1eb7t g\u1ed3 gh\u1ec1 c\u00f3 th\u1ec3 gi\u1eef l\u1ea1i kh\u00ed heli trong qu\u00e1 tr\u00ecnh b\u01a1m kh\u00ed. N\u1ebfu kh\u00f4ng c\u00f3 bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c, nh\u1eefng ngu\u1ed3n g\u00e2y nhi\u1ec5u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m t\u0103ng gi\u00e1 tr\u1ecb n\u1ec1n v\u00e0 che l\u1ea5p c\u00e1c \u0111i\u1ec3m r\u00f2 r\u1ec9 th\u1ef1c s\u1ef1. Vi\u1ec7c r\u1eeda b\u1eb1ng nit\u01a1 ho\u1eb7c gia nhi\u1ec7t c\u00f3 ki\u1ec3m so\u00e1t th\u01b0\u1eddng gi\u00fap gi\u1ea3m thi\u1ec3u v\u1ea5n \u0111\u1ec1 n\u00e0y. Trong tr\u01b0\u1eddng h\u1ee3p r\u00f2 r\u1ec9 r\u1ea5t l\u1edbn ho\u1eb7c th\u1ec3 t\u00edch b\u00ean trong c\u1ef1c k\u1ef3 nh\u1ecf, kh\u00ed heli c\u00f3 th\u1ec3 tho\u00e1t ra tr\u01b0\u1edbc khi ki\u1ec3m tra, do \u0111\u00f3 c\u1ea7n th\u1ef1c hi\u1ec7n ki\u1ec3m tra b\u1ecdt kh\u00ed ho\u1eb7c c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m tra r\u00f2 r\u1ec9 l\u1edbn kh\u00e1c ngay sau khi l\u1ea5y thi\u1ebft b\u1ecb ra kh\u1ecfi bu\u1ed3ng.<\/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-3a2b679a e-flex e-con-boxed e-con e-parent\" data-id=\"3a2b679a\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-38014124 elementor-widget elementor-widget-heading\" data-id=\"38014124\" 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\">B\u1ea1n \u0111ang t\u00ecm ki\u1ebfm thi\u1ebft b\u1ecb ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 \u0111\u00e1ng tin c\u1eady?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53b530f2 elementor-widget elementor-widget-text-editor\" data-id=\"53b530f2\" 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>\u00a0\u0110\u1eebng b\u1ecf l\u1ee1 c\u01a1 h\u1ed9i t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a b\u1ea1n b\u1eb1ng thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i.<\/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-5d0c06b6 elementor-mobile-align-center elementor-align-center elementor-widget elementor-widget-button\" data-id=\"5d0c06b6\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/vi\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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>Ti\u00eau chu\u1ea9n ASTM E493: Ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n \u0111\u1ec3 ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 b\u1eb1ng m\u00e1y d\u00f2 r\u00f2 r\u1ec9 ph\u1ed5 kh\u1ed1i \u1edf ch\u1ebf \u0111\u1ed9 ki\u1ec3m tra t\u1eeb trong ra ngo\u00e0i Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 T\u00f3m t\u1eaft ti\u00eau chu\u1ea9n Ti\u00eau chu\u1ea9n ASTM E493 quy \u0111\u1ecbnh m\u1ed9t quy tr\u00ecnh c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 r\u00f2 r\u1ec9 trong c\u00e1c b\u1ed9 ph\u1eadn k\u00edn b\u1eb1ng m\u00e1y d\u00f2 r\u00f2 r\u1ec9 ph\u1ed5 kh\u1ed1i \u1edf ch\u1ebf \u0111\u1ed9 ki\u1ec3m tra t\u1eeb trong ra ngo\u00e0i. C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 vi \u0111i\u1ec7n t\u1eed, thi\u1ebft b\u1ecb y t\u1ebf v\u00e0 thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c \u0111\u1ec1u d\u1ef1a v\u00e0o [\u2026]","protected":false},"author":2,"featured_media":0,"parent":2112,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-blank.php","meta":{"_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-4445","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ASTM E493 - Helium &amp; Mass Spectrometer Leak Testing<\/title>\n<meta name=\"description\" content=\"ASTM E493 explains mass spectrometer inside-out leak testing for sealed devices. Learn methods, sensitivity, helium bombing, and how Cell Instruments supports precision leak 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:\/\/www.leakagetester.com\/vi\/standards\/astm-e493\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ASTM E493 - Helium &amp; Mass Spectrometer Leak Testing\" \/>\n<meta property=\"og:description\" content=\"ASTM E493 explains mass spectrometer inside-out leak testing for sealed devices. 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