{"id":66,"date":"2025-12-24T05:51:29","date_gmt":"2025-12-24T05:51:29","guid":{"rendered":"https:\/\/www.impacttesting.net\/?page_id=66"},"modified":"2025-12-24T05:51:29","modified_gmt":"2025-12-24T05:51:29","slug":"astm-d1709","status":"publish","type":"page","link":"https:\/\/www.impacttesting.net\/vi\/astm-d1709\/","title":{"rendered":"ASTM D1709"},"content":{"rendered":"<section class=\"section\" id=\"section_1041904117\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-239785034\">\n\n\n\t<div id=\"col-263870564\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\" style=\"background-color:rgb(92, 171, 188);\" >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-1105457662\">\n\n\n\t<div id=\"col-1193058595\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-1923868063\" class=\"text\">\n\t\t\n\n<h1>ASTM D1709<\/h1>\n\t\t\n<style>\n#text-1923868063 {\n  font-size: 1.5rem;\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-294512364\" class=\"text\">\n\t\t\n\n<h2>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m r\u01a1i Dart \u0111\u1ed1i v\u1edbi m\u00e0ng nh\u1ef1a<\/h2>\n\t\t\n<style>\n#text-294512364 {\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1193058595 > .col-inner {\n  padding: 50px 10px 10px 10px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row align-middle align-center\"  id=\"row-1508741062\">\n\n\n\t<div id=\"col-1889357148\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row align-center\"  id=\"row-1988008445\">\n\n\n\t<div id=\"col-759104948\" class=\"col medium-7 small-12 large-7\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-1606994623\">\n\n\n\t<div id=\"col-2119520730\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-3159966208\" class=\"text\">\n\t\t\n\n<p>C\u00e1i <strong>Th\u1eed nghi\u1ec7m th\u1ea3 phi ti\u00eau theo ti\u00eau chu\u1ea9n ASTM D1709<\/strong> l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp c\u1ee7a m\u00e0ng nh\u1ef1a v\u00e0 c\u00e1c v\u1eadt li\u1ec7u t\u01b0\u01a1ng t\u1ef1. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh ti\u00eau chu\u1ea9n, l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ph\u00f9 h\u1ee3p v\u00e0 s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb \u0111\u00e1ng tin c\u1eady nh\u01b0 <strong>FDT-01 t\u1eeb Impacttesting.net<\/strong>, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh.<\/p>\n\t\t\n<style>\n#text-3159966208 {\n  color: rgb(0, 0, 0);\n}\n#text-3159966208 > * {\n  color: rgb(0, 0, 0);\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1025309127\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n<a href=\"https:\/\/www.impacttesting.net\/vi\/contact-us\/\" class=\"button primary is-outline\"  style=\"border-radius:99px;\">\n    <span>Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/span>\n  <i class=\"icon-chat\" aria-hidden=\"true\" ><\/i><\/a>\n\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1337829225\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-552710205\">\n\n\n\t<div id=\"col-998154439\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_443847714\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"600\" height=\"440\" src=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/ASTM-D1709-Dart-Drop-Test-Method-for-Plastic-Film.webp\" class=\"attachment-large size-large\" alt=\"ASTM D1709: Ph\u01b0\u01a1ng ph\u00e1p th\u1eed th\u1ea3 v\u1eadt th\u1ec3 h\u00ecnh m\u0169i t\u00ean \u0111\u1ed1i v\u1edbi m\u00e0ng nh\u1ef1a\" srcset=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/ASTM-D1709-Dart-Drop-Test-Method-for-Plastic-Film.webp 600w, https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/ASTM-D1709-Dart-Drop-Test-Method-for-Plastic-Film-545x400.webp 545w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_443847714 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\n<style>\n#row-239785034 > .col > .col-inner {\n  border-radius: 25px;\n}\n<\/style>\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1041904117 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_277180172\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1315437596\">\n\n\n\t<div id=\"col-1374176230\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-915799255\">\n\n\n\t<div id=\"col-2071956582\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-3611204028\" class=\"text\">\n\t\t\n\n<h2>Ti\u00eau chu\u1ea9n ASTM D1709 v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3<\/h2>\n\t\t\n<style>\n#text-3611204028 {\n  font-size: 1.3rem;\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-218388676\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p>Trong c\u00f4ng t\u00e1c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt li\u1ec7u bao b\u00ec d\u1ebbo, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u00e0ng nh\u1ef1a, ti\u00eau chu\u1ea9n ASTM D1709 \u0111\u00f3ng vai tr\u00f2 v\u00f4 c\u00f9ng quan tr\u1ecdng. Ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf n\u00e0y quy \u0111\u1ecbnh c\u00e1c <strong>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m r\u01a1i c\u1ee7a Dart<\/strong>, ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp c\u1ee7a m\u00e0ng nh\u1ef1a b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft \u0111\u1ec3 g\u00e2y ra h\u01b0 h\u1ecfng khi th\u1ea3 m\u1ed9t m\u0169i t\u00ean c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng t\u1eeb \u0111\u1ed9 cao c\u1ed1 \u0111\u1ecbnh. K\u1ebft qu\u1ea3 n\u00e0y l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n, x\u1eed l\u00fd v\u00e0 s\u1eed d\u1ee5ng. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t, chuy\u00ean gia ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m l\u00e0m vi\u1ec7c v\u1edbi m\u00e0ng polymer, vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 \u00e1p d\u1ee5ng ti\u00eau chu\u1ea9n ASTM D1709 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7u su\u1ea5t v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-13993945\">\n\n\n\t<div id=\"col-47065464\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-1515418525\">\n\n\n\t<div id=\"col-2091863831\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-372061327\">\n\n\n\t<div id=\"col-782297487\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-3383282807\" class=\"text\">\n\t\t\n\n<h2>Hi\u1ec3u v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m r\u01a1i Dart<\/h2>\n\t\t\n<style>\n#text-3383282807 {\n  font-size: 1.3rem;\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row align-middle\"  id=\"row-2012886609\">\n\n\n\t<div id=\"col-657836879\" class=\"col medium-7 small-12 large-7\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p>C\u00e1i <strong>Th\u1eed nghi\u1ec7m r\u01a1i c\u1ee7a m\u0169i t\u00ean<\/strong> Theo \u0111\u1ecbnh ngh\u0129a c\u1ee7a ti\u00eau chu\u1ea9n ASTM D1709, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y bao g\u1ed3m vi\u1ec7c th\u1ea3 m\u1ed9t m\u0169i t\u00ean c\u00f3 \u0111\u1ea7u h\u00ecnh b\u00e1n c\u1ea7u xu\u1ed1ng m\u1eabu m\u00e0ng \u0111\u01b0\u1ee3c k\u1eb9p ch\u1eb7t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh tr\u1ecdng l\u01b0\u1ee3ng g\u00e2y ra s\u1ef1 h\u01b0 h\u1ecfng c\u1ee7a c\u00e1c m\u1eabu th\u1eed. Th\u1eed nghi\u1ec7m n\u00e0y cung c\u1ea5p m\u1ed9t ph\u00e9p \u0111o \u0111\u1ecbnh l\u01b0\u1ee3ng v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp.<\/p>\n<p>C\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ch\u00ednh:<\/p>\n<ul>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p A<\/strong>: S\u1eed d\u1ee5ng m\u1ed9t m\u0169i t\u00ean c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 38,10 mm \u0111\u01b0\u1ee3c th\u1ea3 t\u1eeb \u0111\u1ed9 cao 0,66 m.<\/li>\n<li><strong>Ph\u01b0\u01a1ng ph\u00e1p B<\/strong>: S\u1eed d\u1ee5ng m\u1ed9t m\u0169i t\u00ean c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 50,80 mm \u0111\u01b0\u1ee3c th\u1ea3 t\u1eeb \u0111\u1ed9 cao 1,52 m.<\/li>\n<\/ul>\n<p>M\u1ed7i ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c lo\u1ea1i m\u00e0ng v\u00e0 ng\u01b0\u1ee1ng hi\u1ec7u su\u1ea5t kh\u00e1c nhau. Ph\u01b0\u01a1ng ph\u00e1p A th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng h\u01a1n cho c\u00e1c lo\u1ea1i m\u00e0ng nh\u1eb9 h\u01a1n ho\u1eb7c m\u1ecfng h\u01a1n, trong khi ph\u01b0\u01a1ng ph\u00e1p B \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi d\u1ef1 ki\u1ebfn s\u1ebd c\u00f3 t\u00e1c \u0111\u1ed9ng n\u0103ng l\u01b0\u1ee3ng cao h\u01a1n.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1861242030\" class=\"col medium-5 small-12 large-5\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1617789155\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"600\" height=\"440\" src=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/ASTM-D1709-Dart-Drop-Test-Method-for-Plastic-Film.webp\" class=\"attachment-large size-large\" alt=\"ASTM D1709: Ph\u01b0\u01a1ng ph\u00e1p th\u1eed th\u1ea3 v\u1eadt th\u1ec3 h\u00ecnh m\u0169i t\u00ean \u0111\u1ed1i v\u1edbi m\u00e0ng nh\u1ef1a\" srcset=\"https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/ASTM-D1709-Dart-Drop-Test-Method-for-Plastic-Film.webp 600w, https:\/\/www.impacttesting.net\/wp-content\/uploads\/2025\/12\/ASTM-D1709-Dart-Drop-Test-Method-for-Plastic-Film-545x400.webp 545w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1617789155 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1235511838\">\n\n\n\t<div id=\"col-1822733591\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-1354782641\">\n\n\n\t<div id=\"col-2076017740\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-2775969587\" class=\"text\">\n\t\t\n\n<h2>C\u00e1c b\u01b0\u1edbc ch\u00ednh trong quy tr\u00ecnh th\u1eed nghi\u1ec7m va \u0111\u1eadp b\u1eb1ng m\u0169i t\u00ean<\/h2>\n\t\t\n<style>\n#text-2775969587 {\n  font-size: 1.3rem;\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-81010605\">\n\n\n\t<div id=\"col-484424074\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>Chu\u1ea9n b\u1ecb m\u1eabu th\u1eed<\/h3>\n<ul>\n<li><strong>K\u00edch th\u01b0\u1edbc v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng<\/strong>: \u0110\u1ea3m b\u1ea3o c\u00e1c m\u1eabu c\u00f3 k\u00edch th\u01b0\u1edbc \u0111\u1ee7 l\u1edbn \u0111\u1ec3 nh\u00f4 ra ngo\u00e0i k\u1eb9p v\u00e0 kh\u00f4ng c\u00f3 c\u00e1c khuy\u1ebft t\u1eadt c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c nh\u01b0 l\u1ed7 kim hay n\u1ebfp g\u1ea5p.<\/li>\n<li><strong>L\u1ea5y m\u1eabu<\/strong>: L\u1ea5y c\u00e1c m\u1eabu c\u00f3 t\u00ednh \u0111\u1ea1i di\u1ec7n cho to\u00e0n b\u1ed9 l\u00f4 s\u1ea3n xu\u1ea5t phim.<\/li>\n<li><strong>T\u1eadp luy\u1ec7n th\u1ec3 l\u1ef1c<\/strong>: Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m, c\u1ea7n \u1ee7 t\u1ea5t c\u1ea3 c\u00e1c m\u1eabu trong \u00edt nh\u1ea5t 40 gi\u1edd \u1edf nhi\u1ec7t \u0111\u1ed9 23 \u00b1 2\u00b0C v\u00e0 \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i 50 \u00b1 10%, theo quy \u0111\u1ecbnh t\u1ea1i ti\u00eau chu\u1ea9n ASTM D618.<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1057188587\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>C\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb<\/h3>\n<ul>\n<li>S\u1eed d\u1ee5ng m\u00e1y th\u1eed th\u1ea3 phi ti\u00eau \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t nh\u01b0 <strong>FDT-01 t\u1eeb Impacttesting.net<\/strong>, h\u1ed7 tr\u1ee3 c\u1ea3 Ph\u01b0\u01a1ng ph\u00e1p A v\u00e0 B nh\u1edd c\u01a1 ch\u1ebf ph\u00f3ng m\u0169i t\u00ean ch\u00ednh x\u00e1c.<\/li>\n<li>Ch\u1ecdn v\u00e0 ki\u1ec3m tra \u0111\u1ea7u m\u0169i t\u00ean \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o n\u00f3 kh\u00f4ng c\u00f3 v\u1ebft x\u01b0\u1edbc hay khuy\u1ebft t\u1eadt.<\/li>\n<li>\u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cao r\u01a1i m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c theo ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m \u0111\u00e3 ch\u1ecdn.<\/li>\n<li>\u0110\u1ea3m b\u1ea3o r\u1eb1ng m\u0169i t\u00ean b\u1eafn tr\u00fang ch\u00ednh gi\u1eefa m\u1eabu th\u1eed \u0111\u00e3 \u0111\u01b0\u1ee3c k\u1eb9p ch\u1eb7t v\u00e0 kh\u00f4ng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t.<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row align-middle\"  id=\"row-271796513\">\n\n\n\t<div id=\"col-1697308217\" class=\"col medium-8 small-12 large-8\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<h3>C\u00e1c k\u1ef9 thu\u1eadt th\u1eed nghi\u1ec7m r\u01a1i Dart<\/h3>\n<p>Theo ti\u00eau chu\u1ea9n ASTM D1709, c\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ch\u00ednh:<\/p>\n<h4>Ph\u01b0\u01a1ng ph\u00e1p b\u1eadc thang<\/h4>\n<ul>\n<li>S\u1eed d\u1ee5ng c\u00e1c b\u01b0\u1edbc t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng \u0111\u1ec1u nhau (\u0394W).<\/li>\n<li>T\u0103ng ho\u1eb7c gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng m\u0169i t\u00ean sau m\u1ed7i m\u1eabu th\u1eed t\u00f9y theo k\u1ebft qu\u1ea3 h\u01b0 h\u1ecfng.<\/li>\n<li>Th\u1eed nghi\u1ec7m ti\u1ebfp t\u1ee5c cho \u0111\u1ebfn khi thu \u0111\u01b0\u1ee3c 10 k\u1ebft qu\u1ea3 th\u1ea5t b\u1ea1i (X) v\u00e0 10 k\u1ebft qu\u1ea3 kh\u00f4ng th\u1ea5t b\u1ea1i (0).<\/li>\n<li>T\u00ednh to\u00e1n tr\u1ecdng s\u1ed1 h\u1ecfng h\u00f3c (WF) b\u1eb1ng c\u00f4ng th\u1ee9c ph\u01b0\u01a1ng ph\u00e1p b\u1eadc thang:<br \/><strong>WF = W0 + \u0394W(N\/A \u2212 0,5)<\/strong><br \/>\u0110\u1ecba \u0111i\u1ec3m:<br \/><strong>W<sub>0<\/sub> <\/strong> l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng ban \u0111\u1ea7u<br \/><strong>\u0394W<\/strong> l\u00e0 m\u1ee9c t\u0103ng<br \/><strong>N<\/strong> l\u00e0 s\u1ed1 l\u1ea7n th\u1ea5t b\u1ea1i ho\u00e0n to\u00e0n (10)<br \/><strong>A<\/strong> l\u00e0 t\u1ed5ng c\u00e1c gi\u00e1 tr\u1ecb ch\u1ec9 s\u1ed1 c\u1ee7a c\u00e1c m\u1eabu th\u1eed kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u<\/li>\n<\/ul>\n<h4>Ph\u01b0\u01a1ng ph\u00e1p thay th\u1ebf<\/h4>\n<ul>\n<li>S\u1eed d\u1ee5ng tr\u1ecdng l\u01b0\u1ee3ng m\u0169i t\u00ean c\u1ed1 \u0111\u1ecbnh cho m\u1ed9t nh\u00f3m m\u1eabu (th\u01b0\u1eddng l\u00e0 10 m\u1eabu).<\/li>\n<li>Thay \u0111\u1ed5i tr\u1ecdng l\u01b0\u1ee3ng m\u0169i t\u00ean gi\u1eefa c\u00e1c nh\u00f3m.<\/li>\n<li>X\u00e1c \u0111\u1ecbnh ng\u01b0\u1ee1ng h\u1ecfng h\u00f3c b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c v\u1ebd \u0111\u1ed3 th\u1ecb ho\u1eb7c c\u00e1c \u0111\u01b0\u1eddng trung b\u00ecnh \u0111\u1ed9ng.<\/li>\n<\/ul>\n<p>C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong<strong> ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ecbnh k\u1ef3<\/strong> \u0111\u1ec3 ki\u1ec3m tra nhanh.<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-552129827\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"video video-fit mb\" style=\"padding-top:200%;\"><iframe title=\"M\u00e1y th\u1eed va \u0111\u1eadp b\u1eb1ng qu\u1ea3 b\u00f3ng r\u01a1i d\u00e0nh cho m\u00e0ng v\u00e0 t\u1ea5m nh\u1ef1a\" width=\"563\" height=\"1000\" src=\"https:\/\/www.youtube.com\/embed\/AvdivZPwIxc?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\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n<div class=\"row\"  id=\"row-1976473540\">\n\n\n\t<div id=\"col-1262761929\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row\"  id=\"row-654671753\">\n\n\n\t<div id=\"col-467943838\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-789965780\" class=\"text\">\n\t\t\n\n<h2>C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n\t\t\n<style>\n#text-789965780 {\n  font-size: 1.3rem;\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-9188240\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-764878405\" class=\"text\">\n\t\t\n\n<p><strong>S\u1ef1 tr\u01b0\u1ee3t m\u1eabu<\/strong>: S\u1eed d\u1ee5ng c\u00e1c k\u1eb9p ph\u00f9 h\u1ee3p v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t (v\u00ed d\u1ee5: v\u1ea3i crocus) \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 d\u1ecbch chuy\u1ec3n khi va ch\u1ea1m.<\/p>\n<p><strong>K\u1ebft qu\u1ea3 kh\u00f4ng nh\u1ea5t qu\u00e1n<\/strong>: Ki\u1ec3m tra c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng, \u0111\u1ed9 th\u1eb3ng h\u00e0ng c\u1ee7a m\u0169i t\u00ean v\u00e0 vi\u1ec7c chu\u1ea9n b\u1ecb m\u1eabu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh l\u1eb7p l\u1ea1i.<\/p>\n<p><strong>Dart Rebound<\/strong>: Lu\u00f4n b\u1eaft l\u1ea5y phi ti\u00eau ngay sau khi n\u00f3 ch\u1ea1m v\u00e0o \u0111\u1ec3 tr\u00e1nh va ch\u1ea1m nhi\u1ec1u l\u1ea7n v\u00e0 c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng b\u1ec1 m\u1eb7t.<\/p>\n\t\t\n<style>\n#text-764878405 {\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n\n\t\t<\/div>\n\n\t\t\n<style>\n#section_277180172 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\t<section class=\"section\" id=\"section_1268316074\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\n<div class=\"row\"  id=\"row-1136832110\">\n\n\n\t<div id=\"col-1811522230\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"row align-center\"  id=\"row-998782832\">\n\n\n\t<div id=\"col-1953309980\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-3026851664\" class=\"text\">\n\t\t\n\n<h2>T\u1ea1i sao n\u00ean ch\u1ecdn d\u1ecbch v\u1ee5 c\u1ee7a Impacttesting.net?<br \/>M\u00e1y th\u1eed r\u01a1i m\u0169i t\u00ean FDT-01<\/h2>\n\t\t\n<style>\n#text-3026851664 {\n  font-size: 1.4rem;\n  text-align: center;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1308406258\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<p>C\u00e1i <strong>FDT-01 <a href=\"https:\/\/www.impacttesting.net\/vi\/falling-dart-impact-tester\/\">M\u00e1y th\u1eed va \u0111\u1eadp Dart<\/a><\/strong> t\u1eeb <a href=\"https:\/\/www.impacttesting.net\/vi\/\">Impacttesting.net<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c th\u1eed nghi\u1ec7m ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 theo <a href=\"https:\/\/www.impacttesting.net\/vi\/astm-d1709\/\"><strong>ASTM D1709<\/strong><\/a>. C\u00f4ng c\u1ee5 n\u00e0y:<\/p>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1773669518\" class=\"col medium-7 small-12 large-7\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\t<div id=\"text-2432687420\" class=\"text\">\n\t\t\n\n<p>H\u1ed7 tr\u1ee3 c\u1ea3 th\u1eed nghi\u1ec7m theo Ph\u01b0\u01a1ng ph\u00e1p A v\u00e0 Ph\u01b0\u01a1ng ph\u00e1p B<br \/>C\u00f3 t\u00ednh n\u0103ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cao th\u1ea3 ch\u00ednh x\u00e1c v\u00e0 c\u01a1 ch\u1ebf ph\u00f3ng m\u0169i t\u00ean<br \/>Cung c\u1ea5p kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 thu th\u1eadp d\u1eef li\u1ec7u \u0111\u1ec3 theo d\u00f5i k\u1ebft qu\u1ea3 m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady<br \/>T\u0103ng c\u01b0\u1eddng n\u0103ng su\u1ea5t nh\u1edd giao di\u1ec7n tr\u1ef1c quan v\u00e0 thi\u1ebft k\u1ebf ch\u1eafc ch\u1eafn<\/p>\n\t\t\n<style>\n#text-2432687420 {\n  font-size: 1.1rem;\n  line-height: 1.3;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-970788902\" class=\"text\">\n\t\t\n\n<p>Chuy\u00ean m\u00f4n c\u1ee7a ch\u00fang t\u00f4i trong l\u0129nh v\u1ef1c <strong>ki\u1ec3m tra v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i<\/strong>, k\u1ebft h\u1ee3p v\u1edbi c\u00e1c t\u00ednh n\u0103ng c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh v\u00e0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 t\u1ef1 \u0111\u1ed9ng h\u00f3a, khi\u1ebfn FDT-01 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m, d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u00e0 c\u00e1c c\u01a1 quan ki\u1ec3m \u0111\u1ecbnh.<\/p>\n\t\t\n<style>\n#text-970788902 {\n  font-size: 1.1rem;\n}\n<\/style>\n\t<\/div>\n\t\n<a href=\"https:\/\/www.impacttesting.net\/vi\/contact-us\/\" class=\"button primary is-outline\"  style=\"border-radius:99px;\">\n    <span>Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/span>\n  <i class=\"icon-chat\" aria-hidden=\"true\" ><\/i><\/a>\n\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-436092164\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f10-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"10\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/vi\/wp-json\/wp\/v2\/pages\/66#wpcf7-f10-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"M\u1eabu li\u00ean h\u1ec7\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/vi\/wp-json\/wp\/v2\/pages\/66#wpcf7-f10-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"10\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.4\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f10-o1\" 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