{"id":9841,"date":"2026-02-24T15:11:45","date_gmt":"2026-02-24T07:11:45","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/iso-8295-2\/"},"modified":"2026-03-13T15:25:46","modified_gmt":"2026-03-13T07:25:46","slug":"iso-8295","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/vi\/standard\/iso-8295\/","title":{"rendered":"Ti\u00eau chu\u1ea9n ISO8295"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n ISO 8295 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e0ng nh\u1ef1a.<\/h2>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t phim v\u00e0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t bao b\u00ec, <strong data-start=\"2773\" data-end=\"2785\">Ti\u00eau chu\u1ea9n ISO8295<\/strong> Ki\u1ec3m th\u1eed l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a <strong data-start=\"2814\" data-end=\"2833\">ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/strong>H\u00e0nh vi tr\u01b0\u1ee3t c\u1ee7a m\u00e0ng nh\u1ef1a\u2014cho d\u00f9 l\u00e0 polyethylene, polypropylene, polyester hay m\u00e0ng laminate nhi\u1ec1u l\u1edbp\u2014c\u00f3 th\u1ec3 thay \u0111\u1ed5i do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1ef1 di chuy\u1ec3n c\u1ee7a ch\u1ea5t ph\u1ee5 gia (v\u00ed d\u1ee5: ch\u1ea5t l\u00e0m tr\u01a1n nh\u01b0 erucamide)<\/li>\n\n\n\n<li>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t (v\u00ed d\u1ee5: corona, plasma)<\/li>\n\n\n\n<li>Ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng (qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a ho\u1eb7c \u0111\u1ed9 \u1ea9m)<\/li>\n\n\n\n<li>\u0110i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 x\u1eed l\u00fd<\/li>\n<\/ul>\n\n\n\n<p>C\u00e1c \u0111o l\u01b0\u1eddng COF ch\u00ednh x\u00e1c gi\u00fap \u0111\u1ea3m b\u1ea3o m\u00e0ng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3\u2014t\u1eeb qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i v\u00e0 in \u1ea5n \u0111\u1ebfn \u0111\u00f3ng g\u00f3i v\u00e0 \u1ee9ng d\u1ee5ng cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u1ec7 s\u1ed1 ma s\u00e1t c\u1ee7a m\u00e0ng v\u00e0 H\u1ec7 s\u1ed1 ma s\u00e1t c\u1ee7a m\u00e0ng nh\u1ef1a trong \u0111\u00f3ng g\u00f3i<\/h2>\n\n\n\n<p>C\u00e1c <strong data-start=\"944\" data-end=\"979\">H\u1ec7 s\u1ed1 ma s\u00e1t c\u1ee7a m\u00e0ng<\/strong>, th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong data-start=\"1002\" data-end=\"1025\">Chi ph\u00ed s\u1ea3n xu\u1ea5t (COF) c\u1ee7a m\u00e0ng nh\u1ef1a<\/strong>, \u0111o l\u01b0\u1eddng m\u1ee9c \u0111\u1ed9 d\u1ec5 d\u00e0ng m\u00e0 m\u1ed9t l\u1edbp m\u00e0ng tr\u01b0\u1ee3t qua l\u1edbp m\u00e0ng kh\u00e1c. T\u00ednh ch\u1ea5t n\u00e0y c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn kh\u1ea3 n\u0103ng gia c\u00f4ng tr\u00ean thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i h\u00ecnh d\u1ea1ng-\u0111\u1ed5 \u0111\u1ea7y-h\u00e0n k\u00edn, d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i t\u00fai v\u00e0 quy tr\u00ecnh x\u1ebfp ch\u1ed3ng t\u1ef1 \u0111\u1ed9ng. T\u00ednh ch\u1ea5t tr\u01b0\u1ee3t k\u00e9m c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng k\u1eb9t m\u00e1y ho\u1eb7c c\u1ea5p li\u1ec7u sai, trong khi m\u00e0ng qu\u00e1 tr\u01a1n c\u00f3 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1 h\u00e0n k\u00edn ho\u1eb7c l\u1ec7ch v\u1ecb tr\u00ed s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n<p><strong data-start=\"1365\" data-end=\"1377\">Ti\u00eau chu\u1ea9n ISO8295<\/strong> cung c\u1ea5p m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n h\u00f3a \u0111\u1ec3 ki\u1ec3m tra c\u1ea3 hai <strong data-start=\"1439\" data-end=\"1449\">t\u0129nh<\/strong> V\u00e0 <strong data-start=\"1454\" data-end=\"1490\">h\u1ec7 s\u1ed1 ma s\u00e1t \u0111\u1ed9ng<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"1495\" data-end=\"1509\">COF t\u0129nh<\/strong> (\u03bcs) \u0111o \u0111i\u1ec7n tr\u1edf t\u1ea1i th\u1eddi \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u chuy\u1ec3n \u0111\u1ed9ng.<\/li>\n\n\n\n<li><strong data-start=\"1565\" data-end=\"1580\">H\u1ec7 s\u1ed1 ma s\u00e1t \u0111\u1ed9ng (COF)<\/strong> (\u03bcd) \u0111o \u0111i\u1ec7n tr\u1edf trong qu\u00e1 tr\u00ecnh tr\u01b0\u1ee3t li\u00ean t\u1ee5c.<\/li>\n<\/ul>\n\n\n\n<p>S\u1ef1 ph\u00e2n bi\u1ec7t n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 \u0111\u00f3ng g\u00f3i d\u1ea1ng \u0111\u1ee9ng (VFFS), n\u01a1i m\u00e0ng \u0111\u00f3ng g\u00f3i ph\u1ea3i kh\u1edfi \u0111\u1ed9ng v\u00e0 duy tr\u00ec chuy\u1ec3n \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0 d\u01b0\u1edbi t\u1ea3i tr\u1ecdng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ed5ng quan v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m ISO 8295<\/h2>\n\n\n\n<p>ISO 8295 m\u00f4 t\u1ea3 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00ednh tr\u01b0\u1ee3t b\u1eb1ng c\u00e1ch tr\u01b0\u1ee3t m\u1ed9t xe tr\u01b0\u1ee3t tr\u00ean m\u1eabu th\u1eed \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean b\u1ec1 m\u1eb7t th\u1eed nghi\u1ec7m ngang. Thi\u1ebft b\u1ecb th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ed8T <strong data-start=\"2025\" data-end=\"2033\">xe tr\u01b0\u1ee3t tuy\u1ebft<\/strong> v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng ti\u00eau chu\u1ea9n (th\u01b0\u1eddng l\u00e0 200g \u00b129g) v\u00e0 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac.<\/li>\n\n\n\n<li>M\u1ed8T <strong data-start=\"2105\" data-end=\"2124\">S\u00e2n kh\u1ea5u c\u01a1 gi\u1edbi<\/strong> ho\u1eb7c m\u1ed9t m\u00e1y th\u1eed k\u00e9o \u0111\u1ec3 t\u1ea1o ra chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ec1u.<\/li>\n\n\n\n<li>M\u1ed8T <strong data-start=\"2183\" data-end=\"2209\">thi\u1ebft b\u1ecb \u0111o l\u1ef1c<\/strong> \u0110\u1ec3 ghi l\u1ea1i l\u1ef1c c\u1ea3n ma s\u00e1t.<\/li>\n<\/ul>\n\n\n\n<p>C\u00e1c th\u00f4ng s\u1ed1 ch\u00ednh \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ISO 8295 bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"2291\" data-end=\"2306\">T\u1ed1c \u0111\u1ed9 ki\u1ec3m tra:<\/strong> Th\u00f4ng th\u01b0\u1eddng 100 mm\/ph\u00fat \u00b110 mm\/ph\u00fat<\/li>\n\n\n\n<li><strong data-start=\"2340\" data-end=\"2372\">Th\u1eddi gian ti\u1ebfp x\u00fac tr\u01b0\u1edbc khi tr\u01b0\u1ee3t:<\/strong> 15 gi\u00e2y<\/li>\n\n\n\n<li><strong data-start=\"2386\" data-end=\"2410\">\u0110i\u1ec1u ki\u1ec7n m\u1eabu:<\/strong> 23\u00b0C, 50% RH trong \u00edt nh\u1ea5t 16 gi\u1edd theo ti\u00eau chu\u1ea9n ISO 291.<\/li>\n<\/ul>\n\n\n\n<p>C\u00e1c ph\u00e9p \u0111o th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean nhi\u1ec1u c\u1eb7p phim \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ed1ng k\u00ea. K\u1ebft qu\u1ea3 gi\u00fap \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t trong m\u1ed9t l\u00f4 s\u1ea3n xu\u1ea5t ho\u1eb7c so s\u00e1nh c\u00e1c c\u00f4ng th\u1ee9c c\u00f3 c\u00e1c ch\u1ea5t l\u00e0m tr\u01a1n kh\u00e1c nhau.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"Quy tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 ma s\u00e1t l\u00e0 g\u00ec?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/NUgXENOz8J0?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<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a th\u1eed nghi\u1ec7m ISO 8295<\/h2>\n\n\n\n<p>C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1eed d\u1ee5ng d\u1eef li\u1ec7u COF theo ti\u00eau chu\u1ea9n ISO 8295 bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"3408\" data-end=\"3427\">\u0110\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m:<\/strong> \u0110\u1ec3 t\u1ed1i \u01b0u h\u00f3a h\u1ec7 th\u1ed1ng \u0111\u00f3ng g\u00f3i theo chi\u1ec1u d\u1ecdc v\u00e0 chi\u1ec1u ngang.<\/li>\n\n\n\n<li><strong data-start=\"3482\" data-end=\"3511\">\u0110\u00f3ng g\u00f3i thi\u1ebft b\u1ecb y t\u1ebf:<\/strong> \u0110\u1ea3m b\u1ea3o bao b\u00ec r\u00e0o c\u1ea3n v\u00f4 tr\u00f9ng kh\u00f4ng b\u1ecb d\u00ednh ho\u1eb7c tr\u01b0\u1ee3t qu\u00e1 m\u1ee9c.<\/li>\n\n\n\n<li><strong data-start=\"3584\" data-end=\"3614\">Nh\u00e3n d\u00e1n v\u00e0 b\u0103ng d\u00ednh:<\/strong> N\u01a1i hi\u1ec7u su\u1ea5t c\u1ee7a l\u1edbp l\u00f3t t\u00e1ch ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1eb7c t\u00ednh ma s\u00e1t.<\/li>\n\n\n\n<li><strong data-start=\"3685\" data-end=\"3714\">\u0110\u00f3ng g\u00f3i d\u01b0\u1ee3c ph\u1ea9m:<\/strong> \u0110\u1ec3 duy tr\u00ec t\u00ednh \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i b\u1eb1ng t\u00fai bong b\u00f3ng.<\/li>\n<\/ul>\n\n\n\n<p>Hi\u1ec3u r\u00f5 COF c\u0169ng h\u1ed7 tr\u1ee3 <strong data-start=\"3809\" data-end=\"3834\">Tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh<\/strong>, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p li\u00ean quan \u0111\u1ebfn kh\u1ea3 n\u0103ng gia c\u00f4ng v\u00e0 an to\u00e0n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1ef1a ch\u1ecdn m\u00e1y \u0111o h\u1ec7 s\u1ed1 ma s\u00e1t ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<p>\u0110\u1ec3 tri\u1ec3n khai ISO 8295 trong ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a b\u1ea1n, b\u1ea1n c\u1ea7n c\u00e1c thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ti\u00eau chu\u1ea9n. <strong data-start=\"4086\" data-end=\"4137\"><a href=\"https:\/\/www.packqc.com\/vi\/\">D\u1ee5ng c\u1ee5 t\u1ebf b\u00e0o<\/a> M\u00e1y ki\u1ec3m tra h\u1ec7 s\u1ed1 ma s\u00e1t<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110o ch\u00ednh x\u00e1c c\u1ea3 h\u1ec7 s\u1ed1 ma s\u00e1t t\u0129nh (COF) v\u00e0 h\u1ec7 s\u1ed1 ma s\u00e1t \u0111\u1ed9ng (COF).<\/li>\n\n\n\n<li>H\u1ed7 tr\u1ee3 th\u1eed nghi\u1ec7m ma s\u00e1t c\u1ee7a m\u00e0ng v\u1edbi m\u00e0ng, kim lo\u1ea1i ho\u1eb7c c\u00e1c b\u1ec1 m\u1eb7t kh\u00e1c.<\/li>\n\n\n\n<li>Cung c\u1ea5p t\u1ed1c \u0111\u1ed9 th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh v\u00e0 c\u1ea5u h\u00ecnh t\u1ea3i.<\/li>\n\n\n\n<li>Cung c\u1ea5p c\u00e1c \u0111\u1ea7u ra k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u d\u1ec5 d\u00e0ng v\u00e0 l\u1eadp t\u00e0i li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n\n\n\n<p>D\u00f9 b\u1ea1n \u0111ang ki\u1ec3m tra m\u00e0ng polyethylene, BOPP, PET hay c\u00e1c lo\u1ea1i m\u00e0ng laminate nhi\u1ec1u l\u1edbp, c\u00e1c thi\u1ebft b\u1ecb ki\u1ec3m tra Cell Instruments\u2019 \u0111\u1ea3m b\u1ea3o <strong data-start=\"4523\" data-end=\"4537\">c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i<\/strong>, <strong data-start=\"4539\" data-end=\"4561\">tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/strong>, V\u00e0 <strong data-start=\"4567\" data-end=\"4601\">\u0110o l\u01b0\u1eddng h\u1ec7 s\u1ed1 ma s\u00e1t (COF) v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tLi\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 nh\u1eadn gi\u1ea3i ph\u00e1p th\u1eed nghi\u1ec7m h\u1ec7 s\u1ed1 ma s\u00e1t.\t\t\t\t<\/h2>\n\n\n\n<p>D\u00f9 b\u1ea1n \u0111ang \u1edf <strong data-start=\"5354\" data-end=\"5417\">Nh\u1ef1a, gi\u1ea5y, bao b\u00ec ho\u1eb7c s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb y t\u1ebf<\/strong>Hi\u1ec3u v\u00e0 \u00e1p d\u1ee5ng ISO 8295 s\u1ebd mang l\u1ea1i cho b\u1ea1n l\u1ee3i th\u1ebf c\u1ea1nh tranh. V\u1edbi s\u1ef1 \u0111\u00fang \u0111\u1eafn <strong data-start=\"5506\" data-end=\"5540\">M\u00e1y \u0111o h\u1ec7 s\u1ed1 ma s\u00e1t<\/strong> gi\u1ed1ng nh\u01b0 <a href=\"https:\/\/www.packqc.com\/vi\/product\/coefficient-of-friction-testing-equipment\/\"><strong>COF-01 <\/strong><\/a>T\u1eeb Cell Instruments, c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ea1n s\u1ebd tr\u1edf n\u00ean nh\u1ea5t qu\u00e1n, hi\u1ec7u qu\u1ea3 v\u00e0 tu\u00e2n th\u1ee7 h\u01a1n.<\/p>\n\n\n\n<p>Li\u00ean h\u1ec7 <strong>D\u1ee5ng c\u1ee5 t\u1ebf b\u00e0o<\/strong> H\u00f4m nay, h\u00e3y t\u00ecm hi\u1ec3u c\u00e1ch c\u00e1c gi\u1ea3i ph\u00e1p c\u1ee7a ch\u00fang t\u00f4i c\u00f3 th\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng ki\u1ec3m th\u1eed v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n.<\/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>1. ISO 8295 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<br>ISO 8295 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o c\u00e1c h\u1ec7 s\u1ed1 ma s\u00e1t t\u0129nh v\u00e0 \u0111\u1ed9ng c\u1ee7a m\u00e0ng nh\u1ef1a v\u00e0 t\u1ea5m nh\u1ef1a, gi\u00fap \u0111\u00e1nh gi\u00e1 c\u00e1c \u0111\u1eb7c t\u00ednh tr\u01b0\u1ee3t trong qu\u00e1 tr\u00ecnh gia c\u00f4ng v\u00e0 x\u1eed l\u00fd.<\/p>\n\n\n\n<p>2. T\u1ea1i sao COF l\u1ea1i quan tr\u1ecdng trong m\u00e0ng bao b\u00ec?<br>H\u1ec7 s\u1ed1 ma s\u00e1t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng gia c\u00f4ng, x\u1ebfp ch\u1ed3ng, \u0111\u00f3ng g\u00f3i v\u00e0 v\u1eadn chuy\u1ec3n m\u00e0ng. H\u1ec7 s\u1ed1 ma s\u00e1t ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh gia c\u00f4ng di\u1ec5n ra tr\u01a1n tru v\u00e0 ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 d\u00ednh ho\u1eb7c k\u1eb9t m\u00e0ng.<\/p>\n\n\n\n<p>3. C\u00e1c ch\u1ea5t ph\u1ee5 gia \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ec7 s\u1ed1 ma s\u00e1t (COF) nh\u01b0 th\u1ebf n\u00e0o?<br>C\u00e1c ch\u1ea5t ph\u1ee5 gia ch\u1ed1ng tr\u01b0\u1ee3t di chuy\u1ec3n l\u00ean b\u1ec1 m\u1eb7t theo th\u1eddi gian v\u00e0 gi\u1ea3m ma s\u00e1t. Tuy nhi\u00ean, t\u00e1c d\u1ee5ng c\u1ee7a ch\u00fang c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o tu\u1ed5i th\u1ecd, \u0111\u1ed9 \u1ea9m v\u00e0 c\u00f4ng th\u1ee9c, khi\u1ebfn vi\u1ec7c ki\u1ec3m tra h\u1ec7 s\u1ed1 ma s\u00e1t (COF) tr\u1edf n\u00ean quan tr\u1ecdng.<\/p>\n\n\n\n<p>4. C\u00f3 th\u1ec3 <a href=\"https:\/\/www.iso.org\/standard\/20760.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Ti\u00eau chu\u1ea9n ISO8295<\/a> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c v\u1eadt li\u1ec7u kh\u00f4ng ph\u1ea3i phim kh\u00f4ng?<br>N\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u00e0ng nh\u1ef1a c\u00f3 \u0111\u1ed9 d\u00e0y l\u00ean \u0111\u1ebfn 0,5 mm, nh\u01b0ng v\u1edbi c\u00e1c \u0111i\u1ec1u ch\u1ec9nh, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 ki\u1ec3m tra m\u00e0ng nh\u1ef1a tr\u00ean c\u00e1c v\u1eadt li\u1ec7u n\u1ec1n kh\u00e1c nh\u01b0 kim lo\u1ea1i, gi\u1ea5y ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c.<\/p>\n\n\n\n<p><\/p>","protected":false},"featured_media":6059,"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-9841","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/standard\/9841","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\/6059"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/vi\/wp-json\/wp\/v2\/media?parent=9841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}