{"id":98524,"date":"2021-07-28T09:15:37","date_gmt":"2021-07-28T07:15:37","guid":{"rendered":"https:\/\/obera.fr\/nase-rada\/valeurs-limites-d-exposition-professionnelle-styrene\/"},"modified":"2025-05-07T09:43:27","modified_gmt":"2025-05-07T07:43:27","slug":"valeurs-limites-d-exposition-professionnelle-styrene","status":"publish","type":"post","link":"https:\/\/obera.fr\/cs\/nase-rady\/valeurs-limites-d-exposition-professionnelle-styrene\/","title":{"rendered":"Z\u00e1vazn\u00e9 limitn\u00ed hodnoty expozice na pracovi\u0161ti a styren"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"le-styrene-sous-tout-ses-sens\">Styren ve v\u0161ech smyslech<\/h2>\n\n<p>Styren je <strong>toxick\u00e1 <\/strong>a ho\u0159lav\u00e1 <strong>chemick\u00e1 slou\u010denina <\/strong> <strong>vyr\u00e1b\u011bn\u00e1 z ropy<\/strong>. Styren je zn\u00e1m\u00fd tak\u00e9 pod t\u011bmito synonymy: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>sko\u0159ice ;<\/li>\n\n\n\n<li>etenylbenzen ;<\/li>\n\n\n\n<li>fenylethylen ;<\/li>\n\n\n\n<li>styren ;<\/li>\n\n\n\n<li>monomer styrenu ;<\/li>\n\n\n\n<li>vinylbenzen.<\/li>\n<\/ul>\n\n<p>Hlavn\u00ed<strong> v\u00fdrobky a kompozitn\u00ed materi\u00e1ly obsahuj\u00edc\u00ed styren<\/strong> jsou n\u00e1sleduj\u00edc\u00ed:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>polystyren ;<\/li>\n\n\n\n<li>ABS (akrylonitril-butadien-styren) ;<\/li>\n\n\n\n<li>SAN (styren-akrylonitril) ;<\/li>\n\n\n\n<li>SBR (styren-butadienov\u00fd kau\u010duk);<\/li>\n\n\n\n<li>SBL (styren-butadienov\u00fd latex);<\/li>\n\n\n\n<li>UPR (nenasycen\u00e9 polyesterov\u00e9 prysky\u0159ice).<\/li>\n<\/ul>\n\n<p>Styren se pou\u017e\u00edv\u00e1 p\u0159edev\u0161\u00edm v n\u00e1sleduj\u00edc\u00edch pr\u016fmyslov\u00fdch odv\u011btv\u00edch:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>zpracov\u00e1n\u00ed plast\u016f ;<\/li>\n\n\n\n<li>lodn\u00ed pr\u016fmysl ;<\/li>\n\n\n\n<li>metalurgie ;<\/li>\n\n\n\n<li>karoserie atd.<\/li>\n\n\n\n<li>v\u00fdroba baz\u00e9n\u016f<\/li>\n\n\n\n<li>kompozitn\u00ed materi\u00e1ly (sklolamin\u00e1t, uhl\u00edkov\u00e1 vl\u00e1kna).<\/li>\n\n\n\n<li>high-tech materi\u00e1ly (z\u00e1vodn\u00ed lod\u011b a auta, zbran\u011b).<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"vlep-styrene-valeur-limite-professionnelle-sur-8-h-et-court-terme\">VLEP styren: 8hodinov\u00e1 a kr\u00e1tkodob\u00e1 limitn\u00ed hodnota pro pracovn\u00ed prost\u0159ed\u00ed<\/h2>\n\n<p><a href=\"https:\/\/obera.fr\/cs\/nase-rada\/co-je-to-expozicni-limit-na-pracovisti-nebo-oel\/\" data-type=\"post\" data-id=\"1999\">Vyhl\u00e1\u0161ka 2016-344 ze dne 23. b\u0159ezna 2016 stanov\u00ed z\u00e1vazn\u00e9 limitn\u00ed hodnoty expozice styrenu na pracovi\u0161ti<\/a>.<\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>8hodinov\u00e1 limitn\u00ed hodnota pro pracovn\u00ed prost\u0159ed\u00ed<\/strong> (VLEP-8h) = 100<strong>mg\/m\u00b3Kr\u00e1tkodob\u00e1 limitn\u00ed hodnota pro pracovn\u00ed prost\u0159ed\u00ed<\/strong> (VLCT 15 mn) = 200 mg\/m\u00b3.<\/p>\n<\/blockquote>\n\n<p>Z\u00e1vazn\u00e9 limitn\u00ed hodnoty expozice na pracovi\u0161ti (VLEP) upravuje francouzsk\u00fd <strong>z\u00e1kon\u00edk pr\u00e1ce<\/strong>. Jsou definov\u00e1ny v<strong>\u010dl\u00e1nku R. 4412-149<\/strong> jako<strong>pr\u016fm\u011brn\u00e1 koncentrace chemick\u00e9 l\u00e1tky, kter\u00e1 nesm\u00ed b\u00fdt p\u0159ekro\u010dena<\/strong>: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>na pracovi\u0161ti ;<\/li>\n\n\n\n<li>v d\u00fdchac\u00ed z\u00f3n\u011b zam\u011bstnanc\u016f.<\/li>\n<\/ul>\n\n<p>Bez ohledu na to, zda jsou <strong>orienta\u010dn\u00ed nebo z\u00e1vazn\u00e9<\/strong>, vy\u017eaduj\u00ed VLEP od spole\u010dnost\u00ed, aby si tyto hodnoty nechaly <strong>ka\u017edoro\u010dn\u011b zkontrolovat <\/strong> <strong>akreditovan\u00fdm org\u00e1nem COFRAC<\/strong>. P\u0159i posuzov\u00e1n\u00ed expozice zam\u011bstnanc\u016f zne\u010di\u0161\u0165uj\u00edc\u00edm l\u00e1tk\u00e1m na pracovi\u0161ti <strong>se VLEP pou\u017e\u00edvaj\u00ed jako referen\u010dn\u00ed hodnota<\/strong>. <\/p>\n\n<p>M\u011b\u0159en\u00edm koncentrac\u00ed zne\u010di\u0161\u0165uj\u00edc\u00edch l\u00e1tek v ovzdu\u0161\u00ed na pracovi\u0161ti lze ur\u010dit, jak\u00e1 opat\u0159en\u00ed je t\u0159eba p\u0159ijmout, aby :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>bezpe\u010dnost pr\u00e1ce ;<\/li>\n\n\n\n<li>prevence rizik ;<\/li>\n\n\n\n<li>kolektivn\u00ed ochrana.<\/li>\n<\/ul>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Upozorn\u011bn\u00ed: <a href=\"https:\/\/obera.fr\/cs\/nase-rady\/substances-cmr-risque-exposition-au-travail-quelle-reglementation-prevention\/\" data-type=\"URL\" data-id=\"https:\/\/obera.fr\/conseils\/substances-cmr-risque-exposition-au-travail-quelle-reglementation-prevention\/\">styren nen\u00ed ve Francii chemickou l\u00e1tkou klasifikovanou jako CMR<\/a> (karcinogenn\u00ed, mutagenn\u00ed nebo toxick\u00e1 pro reprodukci).<\/p>\n<\/blockquote>\n\n<p>Na \u00farovni Evropsk\u00e9 unie jsou uvedena n\u00e1sleduj\u00edc\u00ed <strong>zdravotn\u00ed a bezpe\u010dnostn\u00ed rizika spojen\u00e1 s expozic\u00ed styrenu<\/strong>:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>aspira\u010dn\u00ed toxicita ;<\/li>\n\n\n\n<li>akutn\u00ed inhala\u010dn\u00ed toxicita &#8211; p\u00e1ry ;<\/li>\n\n\n\n<li>podr\u00e1\u017ed\u011bn\u00ed k\u016f\u017ee ;<\/li>\n\n\n\n<li>v\u00e1\u017en\u00e9 po\u0161kozen\u00ed o\u010d\u00ed\/podr\u00e1\u017ed\u011bn\u00ed o\u010d\u00ed ;<\/li>\n\n\n\n<li>reproduk\u010dn\u00ed toxicita ;<\/li>\n\n\n\n<li>chronick\u00e1 toxicita pro vodn\u00ed prost\u0159ed\u00ed (rizika pro \u017eivotn\u00ed prost\u0159ed\u00ed).<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"sous-quelles-formes-retrouve-t-on-les-styrenes-et-comment-les-traiter\">Jak\u00e9 formy maj\u00ed styreny a jak se s nimi d\u00e1 zach\u00e1zet?<\/h2>\n\n<p>Styreny se v pr\u016fmyslu obvykle vyskytuj\u00ed v plynn\u00e9 form\u011b. \u0158e\u0161en\u00ed obvykle zahrnuj\u00ed ods\u00e1v\u00e1n\u00ed zne\u010di\u0161\u0165uj\u00edc\u00edch l\u00e1tek na pracovi\u0161ti a jejich odv\u00e1d\u011bn\u00ed ven, s \u00fapravou nebo bez n\u00ed, v z\u00e1vislosti na <a href=\"https:\/\/obera.fr\/cs\/nase-rady\/reglementation-vlep-evaluation-risque-chimique-lieu-de-travail\/\" data-type=\"URL\" data-id=\"https:\/\/obera.fr\/conseils\/reglementation-vlep-evaluation-risque-chimique-lieu-de-travail\/\">regula\u010dn\u00edch omezen\u00edch<\/a>. Styreny lze filtrovat a odlu\u010dovat na aktivn\u00edm uhl\u00ed. V z\u00e1vislosti na koncentraci se up\u0159ednost\u0148uj\u00ed n\u00e1sleduj\u00edc\u00ed zp\u016fsoby:   <\/p>\n\n<ul class=\"wp-block-list\">\n<li>aktivn\u00ed uhl\u00ed pro n\u00edzk\u00e9 a\u017e velmi n\u00edzk\u00e9 koncentrace. Vzhledem k tomu, \u017ee aktivn\u00ed uhl\u00ed m\u016f\u017ee adsorbovat maxim\u00e1ln\u011b 40 % sv\u00e9 hmotnosti, lze snadno odhadnout pot\u0159ebnou spot\u0159ebu aktivn\u00edho uhl\u00ed. <\/li>\n\n\n\n<li>Oxida\u010dn\u00ed procesy (termick\u00e1 oxidace nebo katalytick\u00e1 oxidace) pro vy\u0161\u0161\u00ed koncentrace a v ide\u00e1ln\u00edm p\u0159\u00edpad\u011b pro autotermick\u00e9 zpracov\u00e1n\u00ed (bez dal\u0161\u00edho oxida\u010dn\u00edho \u010dinidla pro udr\u017een\u00ed oxida\u010dn\u00edho procesu).<\/li>\n<\/ul>\n\n<p>Najdete zde v\u0161echna <a href=\"https:\/\/obera.fr\/cs\/produits\/traitement-cov\/\" data-type=\"page\" data-id=\"36\">\u0159e\u0161en\u00ed pro \u00fapravu t\u011bkav\u00fdch organick\u00fdch l\u00e1tek pomoc\u00ed aktivn\u00edho uhl\u00ed<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spole\u010dnost Obera navrhuje za\u0159\u00edzen\u00ed, kter\u00e1 jsou v souladu s t\u011bmito OEL. Zjist\u011bte v\u00edce o limitn\u00edch hodnot\u00e1ch expozice styrenu p\u0159i pr\u00e1ci: jeho toxick\u00e9 chemick\u00e9 slou\u010denin\u011b, dot\u010den\u00fdch odv\u011btv\u00edch, doporu\u010den\u00fdch OEL a mo\u017en\u00fdch zp\u016fsobech o\u0161et\u0159en\u00ed. <\/p>\n","protected":false},"author":4,"featured_media":98342,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"V\u0161e, co pot\u0159ebujete v\u011bd\u011bt o omezuj\u00edc\u00edch OEL a styrenu","_seopress_titles_desc":"Zjist\u011bte v\u00edce informac\u00ed o limitn\u00edch hodnot\u00e1ch expozice styrenu p\u0159i pr\u00e1ci. Spole\u010dnost Obera navrhuje za\u0159\u00edzen\u00ed, kter\u00e1 jsou v souladu s t\u011bmito OEL. ","_seopress_robots_index":"","footnotes":""},"categories":[310],"tags":[113],"class_list":["post-98524","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nase-rady","tag-entete-male","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","no-featured-image-padding","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts\/98524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/comments?post=98524"}],"version-history":[{"count":1,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts\/98524\/revisions"}],"predecessor-version":[{"id":98549,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/posts\/98524\/revisions\/98549"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/media\/98342"}],"wp:attachment":[{"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/media?parent=98524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/categories?post=98524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obera.fr\/cs\/wp-json\/wp\/v2\/tags?post=98524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}