{"id":1900,"date":"2026-04-13T12:34:30","date_gmt":"2026-04-13T05:34:30","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-an-toan-tiep-xuc-thuc-pham-huong-dan-dat-chuan-fda-nsf\/"},"modified":"2026-04-13T12:34:30","modified_gmt":"2026-04-13T05:34:30","slug":"inox-an-toan-tiep-xuc-thuc-pham-huong-dan-dat-chuan-fda-nsf","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-an-toan-tiep-xuc-thuc-pham-huong-dan-dat-chuan-fda-nsf\/","title":{"rendered":"Inox an to\u00e0n ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m: H\u01b0\u1edbng d\u1eabn \u0111\u1ea1t chu\u1ea9n FDA, NSF"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-fda-nsf-la-gi-va-vi-sao-quan-trong-voi-inox-dung-c\">FDA, NSF l\u00e0 g\u00ec v\u00e0 v\u00ec sao quan tr\u1ecdng v\u1edbi inox d\u00f9ng cho th\u1ef1c ph\u1ea9m?<\/a><\/li>\n<li><a href=\"#toc-1-yeu-cau-trong-yeu-cua-fda-doi-voi-be-mat-tiep-xuc-\">Y\u00eau c\u1ea7u tr\u1ecdng y\u1ebfu c\u1ee7a FDA \u0111\u1ed1i v\u1edbi b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m<\/a><\/li>\n<li><a href=\"#toc-2-nsfansi-51-chung-nhan-vat-lieu-tiep-xuc-thuc-pham\">NSF\/ANSI 51: Ch\u1ee9ng nh\u1eadn v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m<\/a><\/li>\n<li><a href=\"#toc-3-fda-vs-nsf-khac-nhau-o-ban-chat\">FDA vs. NSF: Kh\u00e1c nhau \u1edf b\u1ea3n ch\u1ea5t<\/a><\/li>\n<li><a href=\"#toc-4-chon-inox-theo-ung-dung-thuc-pham-khuyen-nghi-ky-t\">Ch\u1ecdn inox theo \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m: khuy\u1ebfn ngh\u1ecb k\u1ef9 thu\u1eadt<\/a><\/li>\n<li><a href=\"#toc-5-gia-cong-han-va-xu-ly-be-mat-de-dat-chuan-ve-sinh\">Gia c\u00f4ng, h\u00e0n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u1ec3 \u0111\u1ea1t chu\u1ea9n v\u1ec7 sinh<\/a><\/li>\n<li><a href=\"#toc-6-ho-so-chung-minh-phu-hop-khi-mua-inox-cho-thuc-pha\">H\u1ed3 s\u01a1 ch\u1ee9ng minh ph\u00f9 h\u1ee3p khi mua inox cho th\u1ef1c ph\u1ea9m<\/a><\/li>\n<li><a href=\"#toc-7-hieu-dung-mot-so-hieu-lam-pho-bien\">Hi\u1ec3u \u0111\u00fang m\u1ed9t s\u1ed1 hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn<\/a><\/li>\n<li><a href=\"#toc-8-checklist-ky-thuat-de-chao-gia-va-nghiem-thu\">Checklist k\u1ef9 thu\u1eadt \u0111\u1ec3 ch\u00e0o gi\u00e1 v\u00e0 nghi\u1ec7m thu<\/a><\/li>\n<li><a href=\"#toc-9-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/a><\/li>\n<li><a href=\"#toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>An to\u00e0n khi inox ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi th\u1ef1c ph\u1ea9m ph\u1ee5 thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u, b\u1ec1 m\u1eb7t, thi\u1ebft k\u1ebf v\u1ec7 sinh v\u00e0 ch\u1ee9ng minh tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n. B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch r\u00f5 inox nh\u01b0 th\u1ebf n\u00e0o \u0111\u01b0\u1ee3c coi l\u00e0 \u201cfood grade\u201d, c\u00e1c y\u00eau c\u1ea7u c\u1ee7a FDA v\u00e0 NSF\/ANSI 51, c\u00e1ch ch\u1ecdn m\u00e1c th\u00e9p \u0111\u00fang \u1ee9ng d\u1ee5ng, h\u1ed3 s\u01a1 c\u1ea7n c\u00f3, c\u00f9ng checklist k\u1ef9 thu\u1eadt \u0111\u1ec3 b\u1ea1n \u0111\u1eb7t h\u00e0ng v\u00e0 nghi\u1ec7m thu. Ch\u1ee7 \u0111\u1ec1 n\u00e0y li\u00ean quan m\u1eadt thi\u1ebft \u0111\u1ebfn h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n\/ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng inox (ASTM, JIS, CO\/CQ), nh\u01b0ng tr\u1ecdng t\u00e2m \u1edf \u0111\u00e2y l\u00e0 kh\u00eda c\u1ea1nh an to\u00e0n th\u1ef1c ph\u1ea9m.<\/p>\n<h2 id=\"toc-0-fda-nsf-la-gi-va-vi-sao-quan-trong-voi-inox-dung-c\">FDA, NSF l\u00e0 g\u00ec v\u00e0 v\u00ec sao quan tr\u1ecdng v\u1edbi inox d\u00f9ng cho th\u1ef1c ph\u1ea9m?<\/h2>\n<p>&#8211; FDA (U.S. Food and Drug Administration) ban h\u00e0nh Food Code v\u00e0 c\u00e1c quy \u0111\u1ecbnh nh\u1eb1m \u0111\u1ea3m b\u1ea3o b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m ph\u1ea3i an to\u00e0n, b\u1ec1n, kh\u00f4ng \u0103n m\u00f2n, kh\u00f4ng h\u00fat \u1ea9m, nh\u1eb5n v\u00e0 d\u1ec5 v\u1ec7 sinh cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng d\u1ef1 ki\u1ebfn. FDA kh\u00f4ng \u201cch\u1ee9ng nh\u1eadn\u201d m\u1ed9t m\u00e1c inox c\u1ee5 th\u1ec3, m\u00e0 quy \u0111\u1ecbnh \u0111\u1eb7c t\u00ednh y\u00eau c\u1ea7u c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 b\u1ec1 m\u1eb7t.<br \/>\n&#8211; NSF\/ANSI 51 (Food Equipment Materials) l\u00e0 ti\u00eau chu\u1ea9n c\u1ee7a b\u00ean th\u1ee9 ba do NSF ph\u00e1t tri\u1ec3n, \u0111\u00e1nh gi\u00e1 v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m v\u1ec1 chi\u1ebft xu\u1ea5t kim lo\u1ea1i\/nhi\u1ec5m th\u00f4i, kh\u1ea3 n\u0103ng l\u00e0m s\u1ea1ch v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m s\u1eed d\u1ee5ng ch\u1ee9ng nh\u1eadn NSF \u0111\u1ec3 ch\u1ee9ng minh tu\u00e2n th\u1ee7 v\u00e0 d\u1ec5 d\u00e0ng th\u00f4ng quan, xu\u1ea5t kh\u1ea9u.<\/p>\n<p>Khi b\u1ea1n mua inox ho\u1eb7c thi\u1ebft b\u1ecb cho ng\u00e0nh th\u1ef1c ph\u1ea9m, c\u01a1 quan ki\u1ec3m tra, kh\u00e1ch h\u00e0ng (HACCP\/ISO 22000), v\u00e0 th\u1ecb tr\u01b0\u1eddng xu\u1ea5t kh\u1ea9u th\u01b0\u1eddng y\u00eau c\u1ea7u ch\u1ee9ng c\u1ee9 ph\u00f9 h\u1ee3p theo FDA\/NSF ho\u1eb7c ti\u00eau chu\u1ea9n v\u1ec7 sinh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng (v\u00ed d\u1ee5 3-A Sanitary Standards cho s\u1eefa\/\u0111\u1ed3 u\u1ed1ng).<\/p>\n<h2 id=\"toc-1-yeu-cau-trong-yeu-cua-fda-doi-voi-be-mat-tiep-xuc-\">Y\u00eau c\u1ea7u tr\u1ecdng y\u1ebfu c\u1ee7a FDA \u0111\u1ed1i v\u1edbi b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m<\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u an to\u00e0n cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng, kh\u00f4ng th\u00f4i nhi\u1ec5m g\u00e2y h\u1ea1i \u1edf \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng d\u1ef1 ki\u1ebfn.<br \/>\n&#8211; B\u1ec1n, ch\u1ed1ng \u0103n m\u00f2n, kh\u00f4ng h\u00fat \u1ea9m, kh\u00f4ng \u0111\u1ed9c, kh\u00f4ng ph\u1ea3n \u1ee9ng v\u1edbi th\u1ef1c ph\u1ea9m.<br \/>\n&#8211; B\u1ec1 m\u1eb7t nh\u1eb5n, kh\u00f4ng r\u1ed7, kh\u00f4ng v\u1ebft n\u1ee9t, khe h\u1edf; d\u1ec5 v\u1ec7 sinh v\u00e0 kh\u1eed tr\u00f9ng.<\/p>\n<p>Th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u tr\u00ean, v\u1edbi \u0111i\u1ec1u ki\u1ec7n ch\u1ecdn \u0111\u00fang m\u00e1c v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p \u1ee9ng d\u1ee5ng (axit\/mu\u1ed1i\/nhi\u1ec7t).<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o:<br \/>\n&#8211; FDA Food Code 2022, m\u1ee5c 4-101.11 \u201cMaterials\u2014Food-Contact Surfaces\u201d (FDA)<\/p>\n<h3>M\u00e1c inox n\u00e0o th\u01b0\u1eddng d\u00f9ng cho th\u1ef1c ph\u1ea9m?<\/h3>\n<p>&#8211; 304\/304L (AISI, ASTM A240): l\u1ef1a ch\u1ecdn \u201cchu\u1ea9n\u201d cho h\u1ea7u h\u1ebft \u1ee9ng d\u1ee5ng ch\u1ebf bi\u1ebfn, \u0111\u1ed3 u\u1ed1ng, b\u1ebfp c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; 316\/316L: th\u00eam Mo, ch\u1ed1ng r\u1ed7 pitting t\u1ed1t h\u01a1n trong m\u00f4i tr\u01b0\u1eddng clorua\/c\u00f3 mu\u1ed1i, axit nh\u1eb9; khuy\u1ebfn ngh\u1ecb cho h\u1ea3i s\u1ea3n, n\u01b0\u1edbc m\u1eafm, n\u01b0\u1edbc mu\u1ed1i, n\u01b0\u1edbc t\u01b0\u01a1ng, d\u01b0a mu\u1ed1i, n\u01b0\u1edbc ch\u1ea5m, n\u01b0\u1edbc gi\u1ea3i kh\u00e1t c\u00f3 t\u00ednh axit.<br \/>\n&#8211; 430 (ferritic, kh\u00f4ng Ni): c\u00f3 th\u1ec3 d\u00f9ng cho ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m kh\u00f4, \u00edt \u0103n m\u00f2n (khay, b\u1ec1 m\u1eb7t l\u00e0m b\u00e1nh) nh\u01b0ng kh\u00f4ng ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng m\u1eb7n\/axit.<br \/>\n&#8211; 201\/202 (th\u1ea5p Ni, cao Mn): \u0111\u1ed9 b\u1ec1n c\u01a1 t\u1ed1t, gi\u00e1 r\u1ebb nh\u01b0ng ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n 304; kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho ti\u1ebfp x\u00fac th\u01b0\u1eddng xuy\u00ean v\u1edbi mu\u1ed1i\/axit; ch\u1ec9 c\u00e2n nh\u1eafc cho m\u00f4i tr\u01b0\u1eddng kh\u00f4, v\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean, r\u1ee7i ro \u0103n m\u00f2n th\u1ea5p.<\/p>\n<p>L\u01b0u \u00fd: FDA kh\u00f4ng \u201cph\u00ea duy\u1ec7t\u201d m\u00e1c 304\/316\/430; vi\u1ec7c ch\u1ea5p nh\u1eadn ph\u1ee5 thu\u1ed9c \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng v\u00e0 thi\u1ebft k\u1ebf v\u1ec7 sinh.<\/p>\n<h3>Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 nh\u00e1m (Ra)<\/h3>\n<p>&#8211; T\u1ea5m\/cu\u1ed9n: 2B, BA (nh\u1eb5n) ho\u1eb7c No.4 (hairline m\u1ecbn) l\u00e0 ph\u1ed5 bi\u1ebfn cho b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac.<br \/>\n&#8211; \u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t: n\u00ean ki\u1ec3m so\u00e1t Ra \u2264 0,8 \u00b5m (\u224830 \u00b5in) cho b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp, \u0111\u1eb7c bi\u1ec7t c\u00f4ng nghi\u1ec7p s\u1eefa\/\u0111\u1ed3 u\u1ed1ng; m\u1ed9t s\u1ed1 quy tr\u00ecnh v\u1ec7 sinh cao y\u00eau c\u1ea7u Ra \u2264 0,5 \u00b5m.<br \/>\n&#8211; \u0110i\u1ec7n h\u00f3a b\u00f3ng (electropolish) gi\u00fap gi\u1ea3m Ra, b\u1ecbt k\u00edn vi \u0111\u1ec9nh nh\u00e1m, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng b\u00e1m b\u1ea9n v\u00e0 v\u1ec7 sinh CIP.<\/p>\n<p>Tham chi\u1ebfu: 3-A Sanitary Standards th\u01b0\u1eddng l\u1ea5y m\u1ed1c Ra \u2264 0,8 \u00b5m cho b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac s\u1ea3n ph\u1ea9m.<\/p>\n<h2 id=\"toc-2-nsfansi-51-chung-nhan-vat-lieu-tiep-xuc-thuc-pham\">NSF\/ANSI 51: Ch\u1ee9ng nh\u1eadn v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m<\/h2>\n<p>&#8211; Ph\u1ea1m vi: \u0111\u00e1nh gi\u00e1 v\u1eadt li\u1ec7u (kim lo\u1ea1i, nh\u1ef1a, cao su, ch\u1ea5t ph\u1ee7) d\u00f9ng trong thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn, l\u01b0u tr\u1eef, v\u1eadn chuy\u1ec3n th\u1ef1c ph\u1ea9m.<br \/>\n&#8211; N\u1ed9i dung ch\u00ednh:<br \/>\n  + Gi\u1edbi h\u1ea1n chi\u1ebft xu\u1ea5t kim lo\u1ea1i n\u1eb7ng\/nhi\u1ec5m th\u00f4i trong \u0111i\u1ec1u ki\u1ec7n gi\u1ea3 l\u1eadp s\u1eed d\u1ee5ng.<br \/>\n  + Kh\u1ea3 n\u0103ng l\u00e0m s\u1ea1ch, b\u1ec1n \u0103n m\u00f2n \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng d\u1ef1 ki\u1ebfn.<br \/>\n  + T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt, v\u1ebft d\u1ea5u nh\u1eadn di\u1ec7n, ki\u1ec3m to\u00e1n nh\u00e0 m\u00e1y.<br \/>\n&#8211; L\u1ee3i \u00edch: ch\u1ee9ng minh ph\u00f9 h\u1ee3p b\u1eb1ng b\u00ean th\u1ee9 ba, d\u1ec5 th\u1ea9m \u0111\u1ecbnh, h\u1ed7 tr\u1ee3 xu\u1ea5t kh\u1ea9u sang th\u1ecb tr\u01b0\u1eddng M\u1ef9\/Canada v\u00e0 c\u00e1c chu\u1ed7i F&#038;B to\u00e0n c\u1ea7u.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o:<br \/>\n&#8211; NSF\/ANSI 51 \u2013 Food Equipment Materials (NSF)<\/p>\n<h3>Khi n\u00e0o c\u1ea7n NSF\/ANSI 2, 3-A v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan?<\/h3>\n<p>&#8211; NSF\/ANSI 2: t\u1eadp trung v\u00e0o thi\u1ebft k\u1ebf, c\u1ea5u t\u1ea1o, l\u00e0m s\u1ea1ch c\u1ee7a thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m (b\u00e0n, gi\u00e1, t\u1ee7, b\u1ebfp c\u00f4ng nghi\u1ec7p).<br \/>\n&#8211; 3-A Sanitary Standards: y\u00eau c\u1ea7u v\u1ec7 sinh thi\u1ebft b\u1ecb s\u1eefa\/th\u1ee9c u\u1ed1ng, bao g\u1ed3m b\u00e1n k\u00ednh g\u00f3c, m\u1ed1i h\u00e0n, Ra\u2026<br \/>\n&#8211; K\u1ebft h\u1ee3p: nhi\u1ec1u d\u1ef1 \u00e1n d\u00f9ng NSF\/ANSI 51 cho v\u1eadt li\u1ec7u + NSF\/ANSI 2 ho\u1eb7c 3-A cho thi\u1ebft k\u1ebf\/v\u1ec7 sinh t\u1ed5ng th\u1ec3.<\/p>\n<h2 id=\"toc-3-fda-vs-nsf-khac-nhau-o-ban-chat\">FDA vs. NSF: Kh\u00e1c nhau \u1edf b\u1ea3n ch\u1ea5t<\/h2>\n<p>&#8211; FDA: khung quy \u0111\u1ecbnh c\u00f4ng, n\u00eau \u0111\u1eb7c t\u00ednh ph\u1ea3i \u0111\u1ea1t; kh\u00f4ng c\u1ea5p \u201ctem\u201d cho t\u1eebng m\u00e1c inox.<br \/>\n&#8211; NSF: t\u1ed5 ch\u1ee9c ch\u1ee9ng nh\u1eadn b\u00ean th\u1ee9 ba; thi\u1ebft b\u1ecb\/v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c \u201cni\u00eam y\u1ebft\u201d sau khi th\u1eed nghi\u1ec7m, \u0111\u00e1nh gi\u00e1.<br \/>\n&#8211; Th\u1ef1c t\u1ebf: nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ee9ng minh ph\u00f9 h\u1ee3p FDA b\u1eb1ng h\u1ed3 s\u01a1 v\u1eadt li\u1ec7u, th\u1eed nghi\u1ec7m; khi c\u1ea7n minh b\u1ea1ch\/\u0111\u1ed1i t\u00e1c y\u00eau c\u1ea7u, th\u00eam ch\u1ee9ng nh\u1eadn NSF.<\/p>\n<h2 id=\"toc-4-chon-inox-theo-ung-dung-thuc-pham-khuyen-nghi-ky-t\">Ch\u1ecdn inox theo \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m: khuy\u1ebfn ngh\u1ecb k\u1ef9 thu\u1eadt<\/h2>\n<p>&#8211; \u0110\u1ed3 u\u1ed1ng, bia, s\u1eefa, n\u01b0\u1edbc tinh khi\u1ebft: 304L\/316L; m\u1ed1i h\u00e0n m\u00e0i ph\u1eb3ng, passivation; Ra \u2264 0,8 \u00b5m; \u01b0u ti\u00ean 316L cho CIP c\u00f3 clorua.<br \/>\n&#8211; H\u1ea3i s\u1ea3n, n\u01b0\u1edbc m\u1eafm, mu\u1ed1i, n\u01b0\u1edbc t\u01b0\u01a1ng, d\u01b0a mu\u1ed1i: 316L l\u00e0 ti\u00eau chu\u1ea9n; tr\u00e1nh 201\/430; thi\u1ebft k\u1ebf kh\u00f4ng k\u1ebd h\u1edf, x\u1ea3 \u0111\u00e1y t\u1ef1 tho\u00e1t.<br \/>\n&#8211; Th\u1ef1c ph\u1ea9m axit (c\u00e0 chua, tr\u00e1i c\u00e2y, \u0111\u1ed3 chua): 316L ho\u1eb7c 304L t\u00f9y pH\/Cl-; n\u1ebfu pH < 4 v\u00e0 c\u00f3 Cl-, n\u00ean d\u00f9ng 316L.  \n- B\u00e1nh k\u1eb9o, th\u1ef1c ph\u1ea9m kh\u00f4: 304\/430 c\u00f3 th\u1ec3 d\u00f9ng; ki\u1ec3m so\u00e1t v\u1ec7 sinh, tr\u00e1nh \u0111\u1ed9 \u1ea9m\/mu\u1ed1i \u0111\u1ecdng.  \n- D\u1ea7u \u0103n, m\u1ee1: 304\/304L; l\u01b0u \u00fd l\u00e0m s\u1ea1ch \u0111\u1ec3 tr\u00e1nh polymer h\u00f3a d\u1ea7u.  \n- D\u1ee5ng c\u1ee5 b\u1ebfp c\u00f4ng nghi\u1ec7p: 304 cho m\u1eb7t b\u00e0n\/ch\u1eadu; 316 cho khu n\u1ea5u c\u00f3 mu\u1ed1i\/axit; 430 d\u00f9ng cho chi ti\u1ebft kh\u00f4ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp ho\u1eb7c m\u00f4i tr\u01b0\u1eddng kh\u00f4.\n\n\n\n<h2 id=\"toc-5-gia-cong-han-va-xu-ly-be-mat-de-dat-chuan-ve-sinh\">Gia c\u00f4ng, h\u00e0n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u1ec3 \u0111\u1ea1t chu\u1ea9n v\u1ec7 sinh<\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u \u0111\u1ea7u v\u00e0o: theo ASTM A240\/JIS G4304-4305; y\u00eau c\u1ea7u ch\u1ee9ng ch\u1ec9 MTC EN 10204 3.1, CO\/CQ.<br \/>\n&#8211; H\u00e0n: d\u00f9ng que\/kim lo\u1ea1i \u0111i\u1ec1n ph\u00f9 h\u1ee3p (ER308L\/ER316L); h\u1ea1n ch\u1ebf sinh r\u1ed7; h\u00e0n hai m\u1eb7t ho\u1eb7c l\u00f3t kh\u00ed, sau \u0111\u00f3 m\u00e0i ph\u1eb3ng, kh\u00f4ng \u0111\u1ec3 c\u1ea1nh s\u1eafc\/khe h\u1edf.<br \/>\n&#8211; T\u1ea9y g\u1ec9 &#038; th\u1ee5 \u0111\u1ed9ng (passivation): theo ASTM A967 ho\u1eb7c ASTM A380 \u0111\u1ec3 t\u00e1i t\u1ea1o l\u1edbp oxide Cr2O3, gi\u1ea3m nguy c\u01a1 th\u00f4i nhi\u1ec5m s\u1eaft v\u00e0 \u0103n m\u00f2n k\u1ebd.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t Ra: \u0111o b\u1eb1ng m\u00e1y \u0111o nh\u00e1m; y\u00eau c\u1ea7u Ra t\u1ed1i \u0111a \u1edf h\u1ee3p \u0111\u1ed3ng.<br \/>\n&#8211; Thi\u1ebft k\u1ebf v\u1ec7 sinh: g\u00f3c bo \u2265 3 mm, d\u1ed1c tho\u00e1t n\u01b0\u1edbc \u2265 1\u20132%, tr\u00e1nh \u201cdead legs\u201d (t\u1ec9 l\u1ec7 L\/D < 2:1), h\u00e0n k\u00edn thay v\u00ec gh\u00e9p ren t\u1ea1i v\u00f9ng ti\u1ebfp x\u00fac, d\u1ec5 th\u00e1o r\u1eddi\/l\u00e0m s\u1ea1ch.  \n- Ch\u1ea5t t\u1ea9y r\u1eeda: \u01b0u ti\u00ean pH trung t\u00ednh\/ki\u1ec1m nh\u1eb9; tr\u00e1nh clo\/hypochlorite \u0111\u1eadm \u0111\u1eb7c tr\u00ean inox n\u00f3ng; r\u1eeda x\u1ea3 k\u1ef9 sau CIP.\n\nTham kh\u1ea3o:\n- ASTM A967\/A380 \u2013 Passivation of Stainless Steel (ASTM International)  \n- 3-A SSI \u2013 y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t v\u00e0 m\u1ed1i h\u00e0n v\u1ec7 sinh\n\n\n\n<h2 id=\"toc-6-ho-so-chung-minh-phu-hop-khi-mua-inox-cho-thuc-pha\">H\u1ed3 s\u01a1 ch\u1ee9ng minh ph\u00f9 h\u1ee3p khi mua inox cho th\u1ef1c ph\u1ea9m<\/h2>\n<p>&#8211; Ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u: MTC EN 10204 3.1 (nhi\u1ec7t luy\u1ec7n, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh), ti\u00eau chu\u1ea9n s\u1ea3n xu\u1ea5t (ASTM A240\/JIS).<br \/>\n&#8211; CO\/CQ: xu\u1ea5t x\u1ee9 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng l\u00f4 h\u00e0ng.<br \/>\n&#8211; Tuy\u00ean b\u1ed1 tu\u00e2n th\u1ee7: th\u01b0 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u1ec1 t\u00ednh ph\u00f9 h\u1ee3p v\u1edbi FDA Food Code\/\u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng d\u1ef1 ki\u1ebfn; n\u1ebfu c\u00f3, ch\u1ee9ng nh\u1eadn\/ni\u00eam y\u1ebft NSF\/ANSI 51 (s\u1ed1 listing).<br \/>\n&#8211; B\u00e1o c\u00e1o th\u1eed nghi\u1ec7m: \u0111\u1ed9 nh\u00e1m Ra, ki\u1ec3m tra th\u1ee5 \u0111\u1ed9ng (ferroxyl test), k\u1ebft qu\u1ea3 kh\u1eed nhi\u1ec5m\/chi\u1ebft xu\u1ea5t n\u1ebfu y\u00eau c\u1ea7u.<br \/>\n&#8211; H\u1ed3 s\u01a1 quy tr\u00ecnh: WPS\/PQR cho h\u00e0n; quy tr\u00ecnh v\u1ec7 sinh (CIP\/SOP); ki\u1ec3m tra m\u1ed1i h\u00e0n v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-7-hieu-dung-mot-so-hieu-lam-pho-bien\">Hi\u1ec3u \u0111\u00fang m\u1ed9t s\u1ed1 hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn<\/h2>\n<p>&#8211; \u201cInox h\u00fat nam ch\u00e2m l\u00e0 kh\u00f4ng an to\u00e0n\u201d: sai. T\u1eeb t\u00ednh kh\u00f4ng li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn an to\u00e0n th\u1ef1c ph\u1ea9m; 304 c\u00f3 th\u1ec3 nhi\u1ec5m t\u1eeb nh\u1eb9 sau gia c\u00f4ng ngu\u1ed9i.<br \/>\n&#8211; \u201cFDA \u0111\u00e3 c\u1ea5p ch\u1ee9ng nh\u1eadn cho m\u00e1c 304\/316\u201d: sai. FDA kh\u00f4ng ch\u1ee9ng nh\u1eadn m\u00e1c; ch\u1ec9 \u0111\u01b0a ra y\u00eau c\u1ea7u \u0111\u1eb7c t\u00ednh v\u00e0 ch\u1ea5p nh\u1eadn khi ch\u1ee9ng minh ph\u00f9 h\u1ee3p.<br \/>\n&#8211; \u201cInox 201 d\u00f9ng \u0111\u01b0\u1ee3c cho m\u1ecdi \u1ee9ng d\u1ee5ng th\u1ef1c ph\u1ea9m\u201d: sai. 201 k\u00e9m b\u1ec1n \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng m\u1eb7n\/axit; r\u1ee7i ro r\u1ed7 g\u1ec9 cao n\u1ebfu v\u1ec7 sinh\/\u0111i\u1ec1u ki\u1ec7n kh\u00f4ng chu\u1ea9n.<\/p>\n<h2 id=\"toc-8-checklist-ky-thuat-de-chao-gia-va-nghiem-thu\">Checklist k\u1ef9 thu\u1eadt \u0111\u1ec3 ch\u00e0o gi\u00e1 v\u00e0 nghi\u1ec7m thu<\/h2>\n<p>G\u1ee3i \u00fd th\u00f4ng s\u1ed1 b\u1ea1n n\u00ean ghi r\u00f5 trong RFQ\/h\u1ee3p \u0111\u1ed3ng:<br \/>\n&#8211; M\u00e1c v\u00e0 ti\u00eau chu\u1ea9n: 304L\/316L theo ASTM A240 (ho\u1eb7c JIS G4304\/4305).<br \/>\n&#8211; B\u1ec1 m\u1eb7t: 2B\/BA\/No.4; Ra t\u1ed1i \u0111a (v\u00ed d\u1ee5 \u2264 0,8 \u00b5m) cho b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y\/k\u00edch th\u01b0\u1edbc\/dung sai; c\u1ea5p ph\u1eb3ng; y\u00eau c\u1ea7u bo g\u00f3c.<br \/>\n&#8211; Quy \u0111\u1ecbnh h\u00e0n: v\u1eadt li\u1ec7u \u0111i\u1ec1n, h\u00e0n k\u00edn, m\u00e0i ph\u1eb3ng; th\u1ee5 \u0111\u1ed9ng theo ASTM A967; kh\u00f4ng d\u00f9ng th\u00e9p cacbon l\u00e0m \u0111\u1ed3 g\u00e1 ti\u1ebfp x\u00fac.<br \/>\n&#8211; Th\u1eed nghi\u1ec7m: ki\u1ec3m tra Ra, th\u1eed th\u1ee5 \u0111\u1ed9ng\/ferroxyl, ki\u1ec3m tra r\u00f2 (th\u00f9ng\/b\u1ed3n), v\u1ec7 sinh th\u1eed CIP.<br \/>\n&#8211; H\u1ed3 s\u01a1: MTC 3.1, CO\/CQ, tuy\u00ean b\u1ed1 ph\u00f9 h\u1ee3p FDA, ch\u1ee9ng nh\u1eadn NSF\/ANSI 51 (n\u1ebfu y\u00eau c\u1ea7u), h\u01b0\u1edbng d\u1eabn v\u1ec7 sinh\/b\u1ea3o tr\u00ec.<\/p>\n<h2 id=\"toc-9-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/h2>\n<p>&#8211; FDA Food Code 2022 \u2013 Materials for Construction and Repair (m\u1ee5c 4-101.11): https:\/\/www.fda.gov\/food\/fda-food-code\/food-code-2022<br \/>\n&#8211; NSF\/ANSI 51 \u2013 Food Equipment Materials: https:\/\/www.nsf.org\/knowledge-library\/food-equipment-materials-nsf-ansi-51<br \/>\n&#8211; 3-A Sanitary Standards, General Requirements v\u00e0 FAQs: https:\/\/www.3-a.org\/<br \/>\n&#8211; ASTM A967\/A380 \u2013 Passivation of Stainless Steel (t\u1ed5ng quan): https:\/\/www.astm.org\/<br \/>\n&#8211; ASTM A240 \u2013 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip: https:\/\/www.astm.org\/<\/p>\n<h2 id=\"toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Inox \u201can to\u00e0n th\u1ef1c ph\u1ea9m\u201d kh\u00f4ng ch\u1ec9 l\u00e0 ch\u1ecdn \u0111\u00fang m\u00e1c 304\/316 m\u00e0 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng: v\u1eadt li\u1ec7u \u0111\u00fang chu\u1ea9n (ASTM\/JIS, MTC 3.1), ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t nh\u1eb5n (Ra ki\u1ec3m so\u00e1t), thi\u1ebft k\u1ebf v\u1ec7 sinh, h\u00e0n v\u00e0 th\u1ee5 \u0111\u1ed9ng chu\u1ea9n, c\u00f9ng h\u1ed3 s\u01a1 ch\u1ee9ng minh ph\u00f9 h\u1ee3p theo FDA v\u00e0\/ho\u1eb7c ch\u1ee9ng nh\u1eadn NSF\/ANSI 51 khi c\u1ea7n. V\u1edbi m\u00f4i tr\u01b0\u1eddng m\u1eb7n\/axit, \u01b0u ti\u00ean 316L; c\u00f2n l\u1ea1i 304L l\u00e0 l\u1ef1a ch\u1ecdn kinh t\u1ebf v\u00e0 an to\u00e0n. Y\u00eau c\u1ea7u r\u00f5 checklist k\u1ef9 thu\u1eadt v\u00e0 ch\u1ee9ng t\u1eeb ngay t\u1eeb b\u01b0\u1edbc ch\u00e0o gi\u00e1 s\u1ebd gi\u00fap b\u1ea1n tr\u00e1nh r\u1ee7i ro \u0103n m\u00f2n, th\u00f4i nhi\u1ec5m v\u00e0 tr\u1ee5c tr\u1eb7c th\u1ea9m \u0111\u1ecbnh.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c inox, b\u1ec1 m\u1eb7t, v\u00e0 b\u1ed9 h\u1ed3 s\u01a1 ti\u00eau chu\u1ea9n ph\u00f9 h\u1ee3p d\u1ef1 \u00e1n th\u1ef1c ph\u1ea9m c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n chuy\u00ean s\u00e2u v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1ed5ng h\u1ee3p chu\u1ea9n FDA, NSF cho inox ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m, c\u00e1ch ch\u1ecdn m\u00e1c 304\/316, y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t, h\u00e0n, h\u1ed3 s\u01a1 ch\u1ee9ng nh\u1eadn v\u00e0 checklist mua s\u1eafm.<\/p>\n","protected":false},"author":7,"featured_media":1023,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1900","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=1900"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1900\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1023"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}