{"id":35591,"date":"2024-08-26T10:19:08","date_gmt":"2024-08-26T03:19:08","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=35591"},"modified":"2024-08-26T10:19:18","modified_gmt":"2024-08-26T03:19:18","slug":"tieu-chuan-xac-dinh-luong-chi-co-trong-moi-truong-song-xunh-quanh","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/tieu-chuan-xac-dinh-luong-chi-co-trong-moi-truong-song-xunh-quanh\/","title":{"rendered":"Ti\u00eau chu\u1ea9n x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng ch\u00ec c\u00f3 trong m\u00f4i tr\u01b0\u1eddng s\u1ed1ng xunh quanh"},"content":{"rendered":"\n<p>M\u1edbi \u0111\u00e2y, U\u1ef7 ban ASTM \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t ti\u00eau chu\u1ea9n D8568 v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng ch\u00ec b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed l\u00f2 than ch\u00ec (GFAAS) c\u00f3 trong m\u00f4i tr\u01b0\u1eddng s\u1ed1ng xunh quanh.<\/p>\n\n\n\n<p>M\u1ed9t ti\u00eau chu\u1ea9n m\u1edbi \u0111\u01b0\u1ee3c U\u1ef7 ban ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed (D22) thu\u1ed9c ASTM ch\u1ea5p thu\u1eadn s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 v\u00e0 gi\u00fap ng\u0103n ng\u1eeba vi\u1ec7c con ng\u01b0\u1eddi ti\u1ebfp x\u00fac v\u1edbi c\u00e1c m\u1ed1i nguy hi\u1ec3m do ch\u00ec trong kh\u00f4ng kh\u00ed. Ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m m\u1edbi (D8568) bao g\u1ed3m vi\u1ec7c x\u00e1c \u0111\u1ecbnh ch\u00ec trong c\u00e1c h\u1ea1t l\u01a1 l\u1eedng trong kh\u00f4ng kh\u00ed trong m\u00f4i tr\u01b0\u1eddng th\u01b0\u1eddng xuy\u00ean c\u00f3 ch\u00ec t\u1ed3n t\u1ea1i (v\u00ed d\u1ee5 nh\u01b0 c\u00f4ng tr\u01b0\u1eddng), hay trong m\u00f4i tr\u01b0\u1eddng lu\u00f4n c\u00f3 h\u1ea1t b\u1ee5i m\u1ecbn, v\u00ed d\u1ee5 nh\u01b0 trong nh\u00e0 th\u01b0\u1eddng v\u1ec7 sinh b\u1eb1ng c\u00e1ch lau tr\u00f9i hay s\u1eed d\u1ee5ng m\u00e1y h\u00fat b\u1ee5i c\u0169ng s\u1ebd t\u1ed3n t\u1ea1i c\u00e1c lo\u1ea1i b\u1ee5i n\u00e0y. Ho\u1eb7c c\u0169ng c\u00f3 th\u1ec3 l\u00e0 m\u00f9i s\u01a1n m\u1edbi v\u00e0 \u0111\u1ea5t thu th\u1eadp \u0111\u01b0\u1ee3c trong v\u00e0 xung quanh c\u00e1c t\u00f2a nh\u00e0 v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh li\u00ean quan b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed l\u00f2 than ch\u00ec (GFAAS).<\/p>\n\n\n\n<p class=\"has-text-align-center\"><img decoding=\"async\" src=\"https:\/\/vietq.vn\/Images\/ngoyenhoa\/2024\/08\/24\/10.jpg\" alt=\"\"><\/p>\n\n\n\n<h2 class=\"has-text-align-center has-small-font-size wp-block-heading\"><em>&nbsp;D8568 &#8211; Ti\u00eau chu\u1ea9n m\u1edbi v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh gi\u00e1 l\u01b0\u1ee3ng ch\u00ec t\u1ed3n t\u1ea1i trong m\u00f4i tr\u01b0\u1eddng s\u1ed1ng<\/em><\/h2>\n\n\n\n<p>Theo th\u00e0nh vi\u00ean c\u1ee7a U\u1ef7 ban ASTM, \u00f4ng Kevin Ashley, \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0 ng\u01b0\u1eddi s\u00e1ng l\u1eadp C\u00f4ng ty Ashley Analytical Associates cho bi\u1ebft: &#8220;GFAAS l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 \u0111o l\u01b0\u1ee3ng ch\u00ec t\u1ed3n t\u1ea1i trong c\u00e1c lo\u1ea1i m\u00f4i tr\u01b0\u1eddng. Ti\u00eau chu\u1ea9n m\u1edbi l\u00e0 m\u1ed9t trong ba ti\u00eau chu\u1ea9n \u0111\u00e3 bao g\u1ed3m c\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda (FAAS) v\u00e0 ph\u1ed5 ph\u00e1t x\u1ea1 nguy\u00ean t\u1eed plasma c\u1ea3m \u1ee9ng (ICP-AES). C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e3 thay th\u1ebf m\u1ed9t ti\u00eau chu\u1ea9n \u0111\u00e3 b\u1ecb thu h\u1ed3i tr\u01b0\u1edbc \u0111\u00f3 l\u00e0 E1613, bao g\u1ed3m c\u1ea3 ba k\u1ef9 thu\u1eadt&#8221;.<\/p>\n\n\n\n<p>Ti\u00eau chu\u1ea9n m\u1edbi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ee5c \u0111\u00edch qu\u1ea3n l\u00fd li\u00ean quan \u0111\u1ebfn ph\u01a1i nhi\u1ec5m ch\u00ec trong c\u00e1c m\u1eabu s\u01a1n, b\u1ee5i b\u1ec1 m\u1eb7t, \u0111\u1ea5t v\u00e0 kh\u00ed dung \u0111\u01b0\u1ee3c chi\u1ebft xu\u1ea5t. C\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m th\u1ef1c hi\u1ec7n ph\u00e2n t\u00edch ch\u00ec trong c\u00e1c m\u1eabu m\u00f4i tr\u01b0\u1eddng s\u1ebd c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng D8568 nh\u1eb1m m\u1ee5c \u0111\u00edch \u0111\u01b0a ra k\u1ebft lu\u1eadn chung v\u00e0 d\u1ef1a v\u00e0o ti\u00eau chu\u1ea9n n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0a ra c\u00e1c ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 v\u1ec1 m\u1eadt \u0111\u1ed9 ch\u00ec c\u00f3 trong m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<p>N\u1ed7 l\u1ef1c n\u00e0y li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn M\u1ee5c ti\u00eau Ph\u00e1t tri\u1ec3n B\u1ec1n v\u1eefng s\u1ed1 3 c\u1ee7a Li\u00ean H\u1ee3p qu\u1ed1c v\u1ec1 s\u1ee9c kh\u1ecfe v\u00e0 h\u1ea1nh ph\u00fac. Ashley cho bi\u1ebft: \u201cTi\u00eau chu\u1ea9n n\u00e0y v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c do ASTM x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean vi\u1ec7c l\u1ea5y m\u1eabu v\u00e0 ph\u00e2n t\u00edch ch\u00ec \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 r\u1ee7i ro v\u00e0 ph\u01a1i nhi\u1ec5m (D22.12) c\u00f3 t\u00e1c d\u1ee5ng tr\u1ef1c ti\u1ebfp trong vi\u1ec7c ng\u0103n ng\u1eeba ph\u01a1i nhi\u1ec5m ch\u00ec qu\u00e1 m\u1ee9c trong m\u00f4i tr\u01b0\u1eddng\u201d.<\/p>\n\n\n\n<p class=\"has-text-align-right\"><strong>B\u1ea3o Linh<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-right\"><a href=\"https:\/\/vietq.vn\/tieu-chuan-tap-trung-danh-gia-ve-luong-chi-co-trong-khong-khi-s25-d224614.html\">https:\/\/vietq.vn\/tieu-chuan-tap-trung-danh-gia-ve-luong-chi-co-trong-khong-khi-s25-d224614.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u1edbi \u0111\u00e2y, U\u1ef7 ban ASTM \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t ti\u00eau chu\u1ea9n D8568 v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng ch\u00ec b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed l\u00f2 than ch\u00ec (GFAAS) c\u00f3 trong m\u00f4i tr\u01b0\u1eddng s\u1ed1ng xunh quanh. M\u1ed9t ti\u00eau chu\u1ea9n m\u1edbi \u0111\u01b0\u1ee3c U\u1ef7 ban ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed (D22) thu\u1ed9c ASTM ch\u1ea5p thu\u1eadn s\u1ebd [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":35592,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-35591","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/35591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=35591"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/35591\/revisions"}],"predecessor-version":[{"id":35593,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/35591\/revisions\/35593"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/35592"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=35591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=35591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=35591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}