{"id":10102,"date":"2026-03-23T16:50:44","date_gmt":"2026-03-23T08:50:44","guid":{"rendered":"https:\/\/www.packqc.com\/?post_type=standard&#038;p=10102"},"modified":"2026-03-23T16:51:08","modified_gmt":"2026-03-23T08:51:08","slug":"astm-d7003","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/vi\/standard\/astm-d7003\/","title":{"rendered":"ASTM D7003"},"content":{"rendered":"<p><strong>ASTM D7003<\/strong> quy \u0111\u1ecbnh m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 <strong>t\u00ednh ch\u1ea5t k\u00e9o d\u1ecdc c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1<\/strong>, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c h\u1ec7 th\u1ed1ng ng\u0103n ch\u1eb7n \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng nh\u01b0 b\u00e3i ch\u00f4n l\u1ea5p, h\u1ed3 ch\u1ee9a v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng khai th\u00e1c m\u1ecf. C\u00e1c v\u1eadt li\u1ec7u n\u00e0y k\u1ebft h\u1ee3p t\u1ea5m polymer v\u1edbi l\u1edbp gia c\u1ed1 b\u1eb1ng v\u1ea3i, khi\u1ebfn \u0111\u1eb7c t\u00ednh ch\u1ecbu k\u00e9o c\u1ee7a ch\u00fang ph\u1ee9c t\u1ea1p h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i m\u00e0ng th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1eadp trung v\u00e0o <strong>ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng (QC), \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng (QA) v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng trong nghi\u00ean c\u1ee9u<\/strong> thay v\u00ec thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nh\u1ea5n m\u1ea1nh vi\u1ec7c th\u1eed nghi\u1ec7m theo c\u00e1c h\u01b0\u1edbng c\u1ee7a c\u1ed1t th\u00e9p \u0111\u1ec3 ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n<p>C\u00e1c k\u1ebft qu\u1ea3 ch\u00ednh c\u1ee7a ti\u00eau chu\u1ea9n ASTM D7003 bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ef1c \u0111\u1ea1i (kN\/m)<\/li>\n\n\n\n<li>\u0110\u1ed9 gi\u00e3n d\u00e0i t\u1ea1i t\u1ea3i tr\u1ecdng c\u1ef1c \u0111\u1ea1i (%)<\/li>\n\n\n\n<li>T\u1ea3i tr\u1ecdng v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i t\u1ea1i \u0111i\u1ec3m \u0111\u1ee9t<\/li>\n\n\n\n<li>T\u00ednh nh\u1ea5t qu\u00e1n th\u1ed1ng k\u00ea (trung b\u00ecnh v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ecdc c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt<\/h2>\n\n\n\n<p>C\u00e1c <strong>Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ecdc c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt<\/strong> Theo ti\u00eau chu\u1ea9n ASTM D7003, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111o l\u01b0\u1eddng ph\u1ea3n \u1ee9ng c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1 tr\u01b0\u1edbc c\u00e1c l\u1ef1c k\u00e9o \u0111\u01a1n tr\u1ee5c. Kh\u00e1c v\u1edbi c\u00e1c th\u1eed nghi\u1ec7m k\u00e9o tr\u00ean m\u1eabu c\u00f3 chi\u1ec1u r\u1ed9ng l\u1edbn, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1eadp trung v\u00e0o vi\u1ec7c ph\u00e2n t\u00edch c\u00e1c s\u1ee3i gia c\u1ed1 c\u1ee5 th\u1ec3 trong m\u1ed9t m\u1eabu th\u1eed c\u00f3 chi\u1ec1u r\u1ed9ng h\u1eb9p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chu\u1ea9n b\u1ecb m\u1eabu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chi\u1ec1u r\u1ed9ng: <strong>25 mm (1 inch)<\/strong><\/li>\n\n\n\n<li>\u0110\u1ed9 d\u00e0i: <strong>\u2265150 mm (6 inch)<\/strong><\/li>\n\n\n\n<li>H\u01b0\u1edbng: Song song v\u1edbi h\u01b0\u1edbng s\u1ee3i c\u1ed1t (MD ho\u1eb7c TD)<\/li>\n\n\n\n<li>S\u1ed1 l\u01b0\u1ee3ng: T\u1ed1i thi\u1ec3u <strong>5 m\u1eabu m\u1ed7i h\u01b0\u1edbng<\/strong><\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t y\u00eau c\u1ea7u quan tr\u1ecdng l\u00e0 <strong>s\u1ee3i gia c\u1ed1 ph\u1ea3i \u0111\u01b0\u1ee3c duy tr\u00ec li\u00ean t\u1ee5c gi\u1eefa c\u00e1c \u0111i\u1ec3m k\u1eb9p<\/strong>. B\u1ea5t k\u1ef3 s\u1ef1 gi\u00e1n \u0111o\u1ea1n n\u00e0o c\u0169ng l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u01b0\u1eddng \u0111\u1ed9 \u0111o \u0111\u01b0\u1ee3c v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quy tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ea3i<\/h2>\n\n\n\n<p>C\u00e1c <strong>Quy tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ea3i<\/strong> Trong ti\u00eau chu\u1ea9n ASTM D7003, quy tr\u00ecnh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo m\u1ed9t tr\u00ecnh t\u1ef1 ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110\u1eb7t chi\u1ec1u d\u00e0i th\u01b0\u1edbc \u0111o<\/strong><br>\u0110i\u1ec1u ch\u1ec9nh kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c ng\u00f3n tay \u0111\u1ec3 <strong>75 mm (3 inch)<\/strong>.<\/li>\n\n\n\n<li><strong>M\u1eabu n\u00fai<\/strong><br>\u0110\u1eb7t m\u1eabu th\u1eed v\u00e0o gi\u1eefa, \u0111\u1ea3m b\u1ea3o h\u01b0\u1edbng t\u1ea3i tr\u00f9ng kh\u1edbp v\u1edbi h\u01b0\u1edbng c\u1ee7a c\u1ed1t th\u00e9p.<\/li>\n\n\n\n<li><strong>\u00c1p d\u1ee5ng t\u1ea3i tr\u1ecdng k\u00e9o<\/strong><br>K\u00e9o m\u1eabu th\u1eed v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i l\u00e0 <strong>300 mm\/ph\u00fat<\/strong> cho \u0111\u1ebfn khi th\u1ea5t b\u1ea1i.<\/li>\n\n\n\n<li><strong>Theo d\u00f5i h\u00e0nh vi<\/strong><br>Ghi l\u1ea1i <strong>\u0111\u01b0\u1eddng cong t\u1ea3i-d\u00e3n<\/strong> li\u00ean t\u1ee5c.<\/li>\n\n\n\n<li><strong>X\u00e1c minh k\u1ebft qu\u1ea3<\/strong><br>Lo\u1ea1i b\u1ecf k\u1ebft qu\u1ea3 n\u1ebfu:\n<ul class=\"wp-block-list\">\n<li>X\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t gi\u00e1<\/li>\n\n\n\n<li>S\u1ef1 c\u1ed1 x\u1ea3y ra t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac<\/li>\n\n\n\n<li>D\u00e2y gia c\u1ed1 \u0111\u01b0\u1ee3c r\u00fat ra m\u00e0 kh\u00f4ng b\u1ecb \u0111\u1ee9t<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Ki\u1ec3m tra l\u1ea1i<\/strong><br>Ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u0111\u1ed1i v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c m\u1eabu theo c\u1ea3 hai h\u01b0\u1edbng.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">D\u1eef li\u1ec7u ch\u00ednh \u0111\u00e3 ghi l\u1ea1i<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea3i tr\u1ecdng \u0111\u1ec9nh<\/li>\n\n\n\n<li>S\u1ef1 t\u00e1ch r\u1eddi b\u1ec1 m\u1eb7t b\u00e1m d\u00ednh t\u1ea1i t\u1ea3i tr\u1ecdng c\u1ef1c \u0111\u1ea1i<\/li>\n\n\n\n<li>L\u1ef1c t\u00e1c d\u1ee5ng t\u1ea1i \u0111i\u1ec3m \u0111\u1ee9t cu\u1ed1i c\u00f9ng<\/li>\n\n\n\n<li>\u0110\u1ed9 gi\u00e3n d\u00e0i t\u1ea1i \u0111i\u1ec3m \u0111\u1ee9t<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a m\u00e0ng ch\u1ed1ng th\u1ea5m<\/h2>\n\n\n\n<p>C\u00e1c <strong>Th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a m\u00e0ng ch\u1ed1ng th\u1ea5m<\/strong> x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a m\u1eabu th\u1eed tr\u01b0\u1edbc khi b\u1ecb \u0111\u1ee9t, t\u1eeb \u0111\u00f3 cung c\u1ea5p th\u00f4ng tin v\u1ec1 \u0111\u1ed9 d\u1ebbo v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a c\u1ed1t th\u00e9p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00ednh to\u00e1n \u0111\u1ed9 gi\u00e3n d\u00e0i<\/h3>\n\n\n\n<p><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><semantics><mrow><mtext>\u0110\u1ed9 gi\u00e3n d\u00e0i (%)<\/mtext><mo>=<\/mo><mfrac><mrow><mi mathvariant=\"normal\">\u0394<\/mi><mi>L<\/mi><\/mrow><mn>75<\/mn><\/mfrac><mo>\u00d7<\/mo><mn>100<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">\\text{\u0110\u1ed9 gi\u00e3n d\u00e0i (\\%)} = \\frac{\\Delta L}{75} \\times 100<\/annotation><\/semantics><\/math>\u0110\u1ed9 gi\u00e3n d\u00e0i (%) = 75\u0394L \u00d7 100<\/p>\n\n\n\n<p>N\u01a1i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0394L = \u0111\u1ed9 d\u1ecbch chuy\u1ec3n c\u1ee7a k\u1eb9p (mm)<\/li>\n\n\n\n<li>75 mm = chi\u1ec1u d\u00e0i \u0111o ban \u0111\u1ea7u<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3i th\u00edch<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0110\u1ed9 gi\u00e3n d\u00e0i th\u1ea5p<\/strong> \u2192 v\u1eadt li\u1ec7u gia c\u1ed1 c\u1ee9ng, c\u00f3 \u0111\u1ed9 b\u1ec1n cao<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 gi\u00e3n d\u00e0i cao<\/strong> \u2192 c\u1ea5u tr\u00fac linh ho\u1ea1t, kh\u1ea3 n\u0103ng ch\u1ecbu bi\u1ebfn d\u1ea1ng t\u1ed1t h\u01a1n<\/li>\n<\/ul>\n\n\n\n<p>C\u1ea3 hai gi\u00e1 tr\u1ecb n\u00e0y \u0111\u1ec1u r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 <strong>hi\u1ec7u su\u1ea5t trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf<\/strong>, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00e1ch ly.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u1ec1 xu\u1ea5t thi\u1ebft b\u1ecb cho th\u1eed nghi\u1ec7m theo ti\u00eau chu\u1ea9n ASTM D7003<\/h2>\n\n\n\n<p>\u0110\u1ec3 th\u1ef1c hi\u1ec7n ch\u00ednh x\u00e1c ti\u00eau chu\u1ea9n ASTM D7003, c\u1ea7n ph\u1ea3i <strong>h\u1ec7 th\u1ed1ng th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/strong>. The <strong>Cell Instruments TST-01 <a href=\"https:\/\/www.packqc.com\/vi\/products\/sale-packaging-tensile-strength-tester-film\/\" target=\"_blank\" rel=\"noreferrer noopener\">M\u00e1y ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n k\u00e9o<\/a><\/strong> \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea1i sao n\u00ean ch\u1ecdn TST-01?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n PLC \u1ed5n \u0111\u1ecbnh v\u1edbi giao di\u1ec7n HMI<\/strong> \u0111\u1ea3m b\u1ea3o vi\u1ec7c qu\u1ea3n l\u00fd th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c<\/li>\n\n\n\n<li><strong>D\u1ea3i t\u1ed1c \u0111\u1ed9 r\u1ed9ng (1\u2013500 mm\/ph\u00fat)<\/strong> d\u1ec5 d\u00e0ng \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u 300 mm\/ph\u00fat<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c d\u1ecbch chuy\u1ec3n cao (\u00b10,01 mm)<\/strong> h\u1ed7 tr\u1ee3 \u0111o \u0111\u1ed9 gi\u00e3n d\u00e0i ch\u00ednh x\u00e1c<\/li>\n\n\n\n<li><strong>Thi\u1ebft b\u1ecb chi\u1ebfu s\u00e1ng c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh<\/strong> \u0111\u1eb7t c\u00e1c m\u1eabu m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt<\/li>\n\n\n\n<li><strong>Hi\u1ec3n th\u1ecb \u0111\u1ed3 th\u1ecb theo th\u1eddi gian th\u1ef1c<\/strong> n\u00e2ng cao kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch d\u1eef li\u1ec7u<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ea3m b\u1ea3o c\u00e1c th\u1eed nghi\u1ec7m theo ti\u00eau chu\u1ea9n ASTM D7003 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ch\u00ednh x\u00e1c v\u00e0 tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh nh\u1edd c\u00e1c gi\u1ea3i ph\u00e1p th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o ti\u00ean ti\u1ebfn. Thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p gi\u00fap \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i, t\u1eeb \u0111\u00f3 h\u1ed7 tr\u1ee3 b\u1ea1n duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf. Cell Instruments cung c\u1ea5p c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u00e1ng tin c\u1eady, c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh ri\u00eang cho c\u00e1c \u1ee9ng d\u1ee5ng th\u1eed nghi\u1ec7m m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt. T\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh th\u1eed nghi\u1ec7m, n\u00e2ng cao t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u v\u00e0 c\u1ee7ng c\u1ed1 quy tr\u00ecnh \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a b\u1ea1n v\u1edbi c\u00f4ng ngh\u1ec7 th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o chuy\u00ean nghi\u1ec7p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 ti\u00eau chu\u1ea9n ASTM D7003<\/h2>\n\n\n\n<p>1. Ti\u00eau chu\u1ea9n ASTM D7003 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<br>Thi\u1ebft b\u1ecb n\u00e0y d\u00f9ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc k\u00e9o c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1 nh\u1eb1m ph\u1ee5c v\u1ee5 c\u00f4ng t\u00e1c ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng (QC), \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng (QA) v\u00e0 nghi\u00ean c\u1ee9u.<\/p>\n\n\n\n<p>2. T\u1ea1i sao c\u00e1c m\u1eabu th\u1eed ph\u1ea3i song song v\u1edbi h\u01b0\u1edbng c\u1ed1t th\u00e9p?<br>V\u00ec \u0111\u1ed9 b\u1ec1n k\u00e9o ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o h\u01b0\u1edbng c\u1ee7a c\u1ed1t th\u00e9p, n\u00ean s\u1ef1 l\u1ec7ch h\u01b0\u1edbng s\u1ebd d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<p>3. \u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra n\u1ebfu c\u00e1c s\u1ee3i kh\u00f4ng li\u00ean t\u1ee5c?<br>\u0110\u1ed9 b\u1ec1n k\u00e9o \u0111o \u0111\u01b0\u1ee3c gi\u1ea3m \u0111\u00e1ng k\u1ec3, khi\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng c\u00f2n gi\u00e1 tr\u1ecb.<\/p>\n\n\n\n<p>4. A l\u00e0<a href=\"https:\/\/store.astm.org\/d7003_d7003m-03r21.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">STM D7003<\/a> c\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 t\u00ednh to\u00e1n thi\u1ebft k\u1ebf kh\u00f4ng?<br>Kh\u00f4ng, \u0111\u00e2y l\u00e0 b\u00e0i ki\u1ec3m tra ch\u1ec9 s\u1ed1 v\u00e0 kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp cho thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<p>5. T\u1ed1c \u0111\u1ed9 th\u1eed nghi\u1ec7m ti\u00eau chu\u1ea9n l\u00e0 bao nhi\u00eau?<br>T\u1ed1c \u0111\u1ed9 di chuy\u1ec3n c\u1ee7a \u0111\u1ea7u tr\u01b0\u1ee3t y\u00eau c\u1ea7u l\u00e0 300 mm\/ph\u00fat.<\/p>\n\n\n\n<p>6. \u0110\u1ed9 b\u1ec1n k\u00e9o \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 th\u1ebf n\u00e0o?<br>B\u1eb1ng c\u00e1ch chia t\u1ea3i tr\u1ecdng t\u1ed1i \u0111a cho chi\u1ec1u r\u1ed9ng m\u1eabu th\u1eed, t\u00ednh b\u1eb1ng kN\/m.<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D7003 defines a standardized method to evaluate the strip tensile properties of reinforced geomembranes, which are widely used in environmental containment systems such as landfills, reservoirs, and mining operations. These materials combine polymer sheets with textile reinforcement, making their tensile behavior more complex than conventional films. This method focuses on quality control (QC), quality [&hellip;]<\/p>","protected":false},"featured_media":10103,"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":""}}},"standard-category":[],"class_list":["post-10102","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/standard\/10102","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/media\/10103"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/media?parent=10102"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/standard-category?post=10102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}