{"id":9311,"date":"2026-02-02T11:23:36","date_gmt":"2026-02-02T03:23:36","guid":{"rendered":"https:\/\/www.packqc.com\/applications\/tear-resistance-test-of-paper\/"},"modified":"2026-03-16T15:14:50","modified_gmt":"2026-03-16T07:14:50","slug":"tear-resistance-test-of-paper","status":"publish","type":"applications","link":"https:\/\/www.packqc.com\/vi\/applications\/tear-resistance-test-of-paper\/","title":{"rendered":"Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y"},"content":{"rendered":"<p>C\u00e1c <strong data-start=\"398\" data-end=\"431\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong> \u0110\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c r\u00e1ch c\u1ee7a v\u1eadt li\u1ec7u gi\u1ea5y trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, in \u1ea5n, \u0111\u00f3ng g\u00f3i v\u00e0 s\u1eed d\u1ee5ng cu\u1ed1i c\u00f9ng. Gi\u1ea5y c\u00f3 \u0111\u1ed9 b\u1ec1n r\u00e1ch kh\u00f4ng \u0111\u1ee7 c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng trong qu\u00e1 tr\u00ecnh gia c\u00f4ng ho\u1eb7c x\u1eed l\u00fd, trong khi \u0111\u1ed9 b\u1ec1n r\u00e1ch qu\u00e1 cao c\u00f3 th\u1ec3 cho th\u1ea5y kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh k\u00e9m. <a href=\"https:\/\/www.packqc.com\/vi\/standard\/astm-d689\/\"><strong data-start=\"715\" data-end=\"728\">Ti\u00eau chu\u1ea9n ASTMD689<\/strong><\/a> X\u00e1c l\u1eadp m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n v\u00e0 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i \u0111\u1ec3 \u0111o l\u01b0\u1eddng <strong data-start=\"805\" data-end=\"836\">\u0110\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong>, cho ph\u00e9p c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t, ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 chuy\u00ean gia ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 nh\u1ea5t qu\u00e1n v\u00e0 c\u00f3 th\u1ec3 so s\u00e1nh \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p>B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng m\u1ed9t <strong data-start=\"963\" data-end=\"997\">M\u00e1y \u0111o \u0111\u1ed9 b\u1ec1n r\u00e1ch Elmendorf<\/strong>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ecbnh l\u01b0\u1ee3ng l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 lan truy\u1ec1n v\u1ebft r\u00e1ch qua gi\u1ea5y trong \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m so\u00e1t. K\u1ebft qu\u1ea3 gi\u00fap d\u1ef1 \u0111o\u00e1n hi\u1ec7u su\u1ea5t, so s\u00e1nh c\u00e1c lo\u1ea1i gi\u1ea5y v\u00e0 h\u1ed7 tr\u1ee3 t\u1ed1i \u01b0u h\u00f3a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y l\u1ea1i quan tr\u1ecdng?<\/h2>\n\n\n\n<p>C\u00e1c <strong data-start=\"1260\" data-end=\"1293\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong> \u0110o \u0111\u1ed9 b\u1ec1n li\u00ean k\u1ebft s\u1ee3i b\u00ean trong thay v\u00ec c\u00e1c \u0111\u1eb7c t\u00ednh b\u1ec1 m\u1eb7t. Kh\u00e1c v\u1edbi th\u1eed nghi\u1ec7m k\u00e9o, \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ch\u1ed1ng k\u00e9o, kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch ph\u1ea3n \u00e1nh m\u1ee9c \u0111\u1ed9 s\u1ee3i ch\u1ed1ng l\u1ea1i s\u1ef1 lan r\u1ed9ng c\u1ee7a v\u1ebft n\u1ee9t sau khi v\u1ebft r\u00e1ch \u0111\u00e3 b\u1eaft \u0111\u1ea7u. S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y khi\u1ebfn ASTM D689 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 gi\u1ea5y ph\u1ea3i ch\u1ecbu stress \u0111\u1ed9t ng\u1ed9t, c\u1eaft ho\u1eb7c m\u00f3c.<\/p>\n\n\n\n<p>C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ef1a v\u00e0o b\u00e0i ki\u1ec3m tra n\u00e0y \u0111\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u00e1nh gi\u00e1 \u0111\u1ed9 b\u1ec1n trong qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i v\u00e0 \u0111\u00f3ng g\u00f3i<\/li>\n\n\n\n<li>So s\u00e1nh ch\u1ea5t l\u01b0\u1ee3ng gi\u1ea5y gi\u1eefa c\u00e1c l\u00f4 s\u1ea3n xu\u1ea5t<\/li>\n\n\n\n<li>H\u1ed7 tr\u1ee3 ph\u00e1t tri\u1ec3n s\u1ea3n ph\u1ea9m v\u00e0 l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u<\/li>\n\n\n\n<li>\u0110\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng v\u00e0 quy \u0111\u1ecbnh.<\/li>\n<\/ul>\n\n\n\n<p>Do t\u00ednh ph\u00f9 h\u1ee3p \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh, ti\u00eau chu\u1ea9n ASTM D689 c\u00f3 s\u1ef1 t\u01b0\u01a1ng th\u00edch cao v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf kh\u00e1c nh\u01b0 ISO 1974 v\u00e0 TAPPI T414.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D689 v\u00e0 Nguy\u00ean l\u00fd \u0111o \u0111\u1ed9 r\u00e1ch theo ph\u01b0\u01a1ng ph\u00e1p Elmendorf<\/h2>\n\n\n\n<p><strong data-start=\"2090\" data-end=\"2103\">Ti\u00eau chu\u1ea9n ASTMD689<\/strong> \u0111\u1ecbnh ngh\u0129a m\u1ed9t <strong data-start=\"2114\" data-end=\"2147\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong> D\u1ef1a tr\u00ean nguy\u00ean l\u00fd Elmendorf. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1eed d\u1ee5ng m\u1ed9t qu\u1ea3 l\u1eafc \u0111\u1ec3 \u00e1p d\u1ee5ng l\u1ef1c x\u00e9 nhanh vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng c\u1ee7a gi\u1ea5y. Khi qu\u1ea3 l\u1eafc x\u00e9 m\u1eabu qua m\u1ed9t kho\u1ea3ng c\u00e1ch c\u1ed1 \u0111\u1ecbnh, n\u00f3 m\u1ea5t n\u0103ng l\u01b0\u1ee3ng ti\u1ec1m n\u0103ng. S\u1ef1 m\u1ea5t m\u00e1t n\u0103ng l\u01b0\u1ee3ng n\u00e0y c\u00f3 m\u1ed1i quan h\u1ec7 tr\u1ef1c ti\u1ebfp v\u1edbi <strong data-start=\"2410\" data-end=\"2441\">\u0110\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong>.<\/p>\n\n\n\n<p>M\u1ed8T <strong data-start=\"2447\" data-end=\"2481\">M\u00e1y \u0111o \u0111\u1ed9 b\u1ec1n r\u00e1ch Elmendorf<\/strong> Chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng n\u00e0y th\u00e0nh gi\u00e1 tr\u1ecb l\u1ef1c \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u00ean thang \u0111o \u0111\u00e3 hi\u1ec7u chu\u1ea9n. Khi th\u1eed nghi\u1ec7m nhi\u1ec1u l\u1edbp c\u00f9ng l\u00fac, k\u1ebft qu\u1ea3 \u0111\u1ea1i di\u1ec7n cho gi\u00e1 tr\u1ecb l\u1ef1c trung b\u00ecnh tr\u00ean m\u1ed7i l\u1edbp, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c ngay c\u1ea3 \u0111\u1ed1i v\u1edbi gi\u1ea5y nh\u1eb9 ho\u1eb7c c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e1y \u0111o \u0111\u1ed9 b\u1ec1n r\u00e1ch Elmendorf v\u00e0 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ASTM D689<\/h2>\n\n\n\n<p>M\u1ed8T <strong data-start=\"2779\" data-end=\"2813\">M\u00e1y \u0111o \u0111\u1ed9 b\u1ec1n r\u00e1ch Elmendorf<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf theo ti\u00eau chu\u1ea9n ASTM D689, thi\u1ebft b\u1ecb ph\u1ea3i \u0111\u1ea3m b\u1ea3o chuy\u1ec3n \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh c\u1ee7a qu\u1ea3 l\u1eafc, k\u1eb9p ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u chu\u1ea9n thang \u0111o ch\u00ednh x\u00e1c. Vi\u1ec7c c\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb \u0111\u00fang c\u00e1ch \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 l\u1eb7p l\u1ea1i v\u00e0 c\u00f3 \u00fd ngh\u0129a trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m. <strong data-start=\"2997\" data-end=\"3030\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong>.<\/p>\n\n\n\n<p>C\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 <strong data-start=\"3061\" data-end=\"3100\">Cell Instruments SLD-01 M\u00e1y th\u1eed \u0111\u1ed9 r\u00e1ch<\/strong>H\u1ed7 tr\u1ee3 th\u1eed nghi\u1ec7m theo ti\u00eau chu\u1ea9n ASTM D689 b\u1eb1ng c\u00e1ch cung c\u1ea5p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh c\u01a1 h\u1ecdc cao \u0111\u1ea3m b\u1ea3o h\u00e0nh \u0111\u1ed9ng x\u00e9 r\u00e1ch \u0111\u1ec1u \u0111\u1eb7n.<\/li>\n\n\n\n<li>\u0110\u1ecdc gi\u00e1 tr\u1ecb l\u1ef1c k\u1ef9 thu\u1eadt s\u1ed1 ho\u1eb7c analog r\u00f5 r\u00e0ng<\/li>\n\n\n\n<li>\u0110i\u1ec1u ch\u1ec9nh d\u1ec5 d\u00e0ng cho c\u00e1c lo\u1ea1i gi\u1ea5y kh\u00e1c nhau v\u00e0 s\u1ed1 l\u1edbp gi\u1ea5y.<\/li>\n\n\n\n<li>Hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 nghi\u00ean c\u1ee9u ph\u00e1t tri\u1ec3n (R&amp;D).<\/li>\n<\/ul>\n\n\n\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t thi\u1ebft b\u1ecb ki\u1ec3m tra tu\u00e2n th\u1ee7 tr\u1ef1c ti\u1ebfp \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady c\u1ee7a k\u1ebft qu\u1ea3 ki\u1ec3m tra v\u00e0 t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a d\u1eef li\u1ec7u trong d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quy tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch t\u1eebng b\u01b0\u1edbc c\u1ee7a gi\u1ea5y<\/h2>\n\n\n\n<p>C\u00e1c <strong data-start=\"3534\" data-end=\"3567\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong> Theo ti\u00eau chu\u1ea9n ASTM D689, quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u00f3 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 bi\u1ebfn \u0111\u1ed9ng:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0110i\u1ec1u ki\u1ec7n m\u1eabu<br><\/strong>M\u1eabu gi\u1ea5y \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n h\u00f3a trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed quy\u1ec3n ti\u00eau chu\u1ea9n \u0111\u1ec3 gi\u1ea3m thi\u1ec3u \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 \u1ea9m v\u00e0 nhi\u1ec7t \u0111\u1ed9.<\/li>\n\n\n\n<li><strong>Chu\u1ea9n b\u1ecb m\u1eabu<br><\/strong>D\u1ef1a tr\u00ean \u0111\u1ed9 b\u1ec1n c\u1ee7a gi\u1ea5y, s\u1ed1 l\u1edbp ph\u00f9 h\u1ee3p \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn. M\u1ee5c ti\u00eau l\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb \u0111\u1ecdc g\u1ea7n v\u1edbi ph\u1ea1m vi t\u1ed1i \u01b0u c\u1ee7a thang \u0111o Elmendorf.<\/li>\n\n\n\n<li><strong>C\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb<br><\/strong>M\u00e1y \u0111o \u0111\u1ed9 b\u1ec1n r\u00e1ch Elmendorf \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng, qu\u1ea3 l\u1eafc \u0111\u01b0\u1ee3c n\u00e2ng l\u00ean v\u1ecb tr\u00ed ban \u0111\u1ea7u v\u00e0 kim ch\u1ec9 th\u1ecb \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u1ec1 v\u1ecb tr\u00ed zero.<\/li>\n\n\n\n<li><strong>K\u1eb9p v\u00e0 chu\u1ea9n b\u1ecb khe h\u1edf<br><\/strong>M\u1eabu v\u1eadt \u0111\u01b0\u1ee3c \u0111\u1eb7t ch\u00ednh gi\u1eefa trong k\u1eb9p v\u00e0 c\u1ed1 \u0111\u1ecbnh \u0111\u1ec1u \u0111\u1eb7n. M\u1ed9t v\u1ebft c\u1eaft ban \u0111\u1ea7u \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh r\u00e1ch b\u1eaft \u0111\u1ea7u m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u.<\/li>\n\n\n\n<li><strong>Th\u1ef1c thi l\u1ec7nh x\u00f3a<br><\/strong>\u0110\u1ed3ng h\u1ed3 l\u1eafc \u0111\u01b0\u1ee3c th\u1ea3 ra, l\u00e0m r\u00e1ch gi\u1ea5y qua m\u1ed9t kho\u1ea3ng c\u00e1ch \u0111\u00e3 \u0111\u1ecbnh. Kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch c\u1ee7a gi\u1ea5y \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean s\u1ef1 m\u1ea5t n\u0103ng l\u01b0\u1ee3ng c\u1ee7a \u0111\u1ed3ng h\u1ed3 l\u1eafc.<\/li>\n\n\n\n<li><strong>Ghi l\u1ea1i k\u1ebft qu\u1ea3<br><\/strong>\u0110\u1ecdc gi\u00e1 tr\u1ecb thang \u0111o v\u00e0 s\u1ed1 l\u1edbp \u0111\u01b0\u1ee3c ghi l\u1ea1i. C\u00e1c th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo c\u1ea3 hai h\u01b0\u1edbng m\u00e1y v\u00e0 h\u01b0\u1edbng ngang khi \u00e1p d\u1ee5ng.<\/li>\n\n\n\n<li><strong>X\u00e1c minh k\u1ebft qu\u1ea3<br><\/strong>C\u00e1c gi\u1ecdt n\u01b0\u1edbc m\u1eaft kh\u00f4ng h\u1ee3p l\u1ec7 kh\u00f4ng tu\u00e2n theo \u0111\u01b0\u1eddng d\u1eabn n\u01b0\u1edbc m\u1eaft y\u00eau c\u1ea7u s\u1ebd b\u1ecb t\u1eeb ch\u1ed1i, \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u.<\/li>\n<\/ol>\n\n\n\n<p>Quy tr\u00ecnh h\u1ec7 th\u1ed1ng n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng k\u1ebft qu\u1ea3 c\u1ee7a ASTM D689 ph\u1ea3n \u00e1nh ch\u00ednh x\u00e1c kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00e1ch b\u00ean trong.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hi\u1ec3u v\u00e0 S\u1eed d\u1ee5ng K\u1ebft qu\u1ea3 Th\u1eed nghi\u1ec7m ASTM D689<\/h2>\n\n\n\n<p>K\u1ebft qu\u1ea3 c\u1ee7a ASTM D689 \u0111\u1ea1i di\u1ec7n cho <strong data-start=\"4968\" data-end=\"4999\">\u0110\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong> theo \u0111\u01a1n v\u1ecb l\u1ef1c. B\u00e1o c\u00e1o th\u01b0\u1eddng bao g\u1ed3m c\u00e1c gi\u00e1 tr\u1ecb trung b\u00ecnh, t\u1ed1i \u0111a v\u00e0 t\u1ed1i thi\u1ec3u cho t\u1eebng h\u01b0\u1edbng \u0111\u01b0\u1ee3c ki\u1ec3m tra. C\u00e1c gi\u00e1 tr\u1ecb n\u00e0y gi\u00fap ng\u01b0\u1eddi d\u00f9ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>So s\u00e1nh \u0111i\u1ec3m s\u1ed1 b\u00e0i vi\u1ebft m\u1ed9t c\u00e1ch kh\u00e1ch quan<\/li>\n\n\n\n<li>Theo d\u00f5i t\u00ednh nh\u1ea5t qu\u00e1n trong s\u1ea3n xu\u1ea5t<\/li>\n\n\n\n<li>D\u1ef1 \u0111o\u00e1n hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng cu\u1ed1i c\u00f9ng<\/li>\n\n\n\n<li>X\u00e1c \u0111\u1ecbnh t\u00e1c \u0111\u1ed9ng c\u1ee7a h\u01b0\u1edbng s\u1ee3i<\/li>\n<\/ul>\n\n\n\n<p>Khi k\u1ebft h\u1ee3p v\u1edbi c\u00e1c th\u1eed nghi\u1ec7m k\u00e9o, v\u1ee1 ho\u1eb7c g\u1ea5p, <strong data-start=\"5336\" data-end=\"5369\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong> g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean m\u1ed9t h\u1ed3 s\u01a1 s\u1ee9c m\u1ea1nh to\u00e0n di\u1ec7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<p>C\u00e2u 1: Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y l\u00e0 g\u00ec?<\/p>\n\n\n\n<p>C\u00e1c <strong data-start=\"206\" data-end=\"239\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong> \u0110o l\u1ef1c c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e9 m\u1ed9t t\u1edd gi\u1ea5y b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t. Th\u1eed nghi\u1ec7m n\u00e0y \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 b\u1ec1n c\u1ee7a gi\u1ea5y v\u00e0 d\u1ef1 \u0111o\u00e1n hi\u1ec7u su\u1ea5t trong in \u1ea5n, \u0111\u00f3ng g\u00f3i v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c.<\/p>\n\n\n\n<p>C\u00e2u 2: C\u00f3 th\u1ec3 ki\u1ec3m tra nh\u1eefng lo\u1ea1i gi\u1ea5y n\u00e0o b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <a href=\"https:\/\/store.astm.org\/d0689-17r24.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Ti\u00eau chu\u1ea9n ASTMD689<\/a>?<\/p>\n\n\n\n<p>Ti\u00eau chu\u1ea9n n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u lo\u1ea1i gi\u1ea5y kh\u00e1c nhau, bao g\u1ed3m gi\u1ea5y in, gi\u1ea5y vi\u1ebft, v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i, t\u1ea5m c\u00f4ng nghi\u1ec7p v\u00e0 gi\u1ea5y c\u00f3 ph\u1ee7 ho\u1eb7c kh\u00f4ng ph\u1ee7. C\u00e1c lo\u1ea1i t\u1ea5m c\u00f3 h\u01b0\u1edbng cao c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u00e1c b\u00e0i ki\u1ec3m tra thay th\u1ebf.<\/p>\n\n\n\n<p>C\u00e2u 3: M\u00e1y th\u1eed \u0111\u1ed9 b\u1ec1n r\u00e1ch Elmendorf ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n<p>C\u00e1c <strong data-start=\"1039\" data-end=\"1073\">M\u00e1y \u0111o \u0111\u1ed9 b\u1ec1n r\u00e1ch Elmendorf<\/strong> S\u1eed d\u1ee5ng m\u1ed9t qu\u1ea3 l\u1eafc \u0111\u1ec3 x\u00e9 gi\u1ea5y. N\u0103ng l\u01b0\u1ee3ng b\u1ecb m\u1ea5t c\u1ee7a qu\u1ea3 l\u1eafc \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh m\u1ed9t gi\u00e1 tr\u1ecb \u0111o, ph\u1ea3n \u00e1nh <strong data-start=\"1185\" data-end=\"1216\">\u0110\u1ed9 b\u1ec1n r\u00e1ch c\u1ee7a gi\u1ea5y<\/strong>C\u00e1c thi\u1ebft b\u1ecb ki\u1ec3m tra hi\u1ec7n \u0111\u1ea1i nh\u01b0 Cell Instruments SLD-01 cung c\u1ea5p k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u00e0 c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i.<\/p>\n\n\n\n<p>C\u00e2u 4: C\u00e1ch chu\u1ea9n b\u1ecb m\u1eabu th\u1eed cho vi\u1ec7c ki\u1ec3m tra nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n<p>M\u1eabu th\u1eed n\u00ean \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n h\u00f3a trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed quy\u1ec3n ti\u00eau chu\u1ea9n. S\u1ed1 l\u1edbp \u0111\u01b0\u1ee3c ch\u1ecdn d\u1ef1a tr\u00ean th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a s\u1ea3n ph\u1ea9m, v\u00e0 c\u00e1c l\u1edbp ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng nh\u1ea5t qu\u00e1n. M\u1ed9t v\u1ebft c\u1eaft nh\u1ecf \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ec3 ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh r\u00e1ch.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>The tear resistance test of paper plays a critical role in evaluating how paper materials withstand tearing forces during converting, printing, packaging, and end use. Paper with insufficient tearing resistance may fail during processing or handling, while excessive tearing resistance can indicate poor runnability. ASTM D689 establishes a standardized and widely recognized approach for measuring [&hellip;]<\/p>","protected":false},"featured_media":8716,"parent":0,"template":"","meta":{"_acf_changed":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"class_list":["post-9311","applications","type-applications","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/applications\/9311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/applications"}],"about":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/types\/applications"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/media\/8716"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/media?parent=9311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}