{"id":98523,"date":"2021-07-28T09:15:37","date_gmt":"2021-07-28T07:15:37","guid":{"rendered":"https:\/\/obera.fr\/conseils\/valeurs-limites-d-exposition-professionnelle-styrene\/"},"modified":"2025-05-07T09:42:40","modified_gmt":"2025-05-07T07:42:40","slug":"valeurs-limites-d-exposition-professionnelle-styrene","status":"publish","type":"post","link":"https:\/\/obera.fr\/et\/meie-nouanne\/valeurs-limites-d-exposition-professionnelle-styrene\/","title":{"rendered":"T\u00f6\u00f6keskkonnasisese kokkupuute siduvad piirnormid ja st\u00fcreen"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"le-styrene-sous-tout-ses-sens\">St\u00fcreen k\u00f5igis oma t\u00e4hendustes<\/h2>\n\n<p>St\u00fcreen on <strong>toksiline <\/strong>ja tuleohtlik <strong>keemiline \u00fchend <\/strong>, <strong>mida toodetakse naftast<\/strong>. St\u00fcreeni tuntakse ka nende s\u00fcnon\u00fc\u00fcmide all: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>kaneel ;<\/li>\n\n\n\n<li>eten\u00fc\u00fclbenseen ;<\/li>\n\n\n\n<li>fen\u00fc\u00fcleet\u00fcleen ;<\/li>\n\n\n\n<li>st\u00fcreen ;<\/li>\n\n\n\n<li>st\u00fcreeni monomeer ;<\/li>\n\n\n\n<li>vin\u00fc\u00fclbenseen.<\/li>\n<\/ul>\n\n<p>Peamised<strong> st\u00fcreeni sisaldavad tooted ja komposiitmaterjalid<\/strong> on j\u00e4rgmised:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>pol\u00fcst\u00fcreen ;<\/li>\n\n\n\n<li>ABS (akr\u00fc\u00fclnitriil-butadieen-st\u00fcreen) ;<\/li>\n\n\n\n<li>SAN (st\u00fcreen-akr\u00fc\u00fclnitriil) ;<\/li>\n\n\n\n<li>SBR (st\u00fcreen-butadieenkaut\u0161uk);<\/li>\n\n\n\n<li>SBL (st\u00fcreen-butadieenlateks);<\/li>\n\n\n\n<li>UPR (k\u00fcllastumata pol\u00fcestervaigud).<\/li>\n<\/ul>\n\n<p>St\u00fcreeni kasutatakse peamiselt j\u00e4rgmistes t\u00f6\u00f6stusharudes:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>plastide t\u00f6\u00f6tlemine ;<\/li>\n\n\n\n<li>paadit\u00f6\u00f6stus ;<\/li>\n\n\n\n<li>metallurgia ;<\/li>\n\n\n\n<li>keret\u00f6\u00f6 jne.<\/li>\n\n\n\n<li>basseinide tootmine<\/li>\n\n\n\n<li>komposiitmaterjalid (klaaskiud, s\u00fcsinikkiud)<\/li>\n\n\n\n<li>k\u00f5rgtehnoloogilised materjalid (v\u00f5idus\u00f5idulaevad ja -autod, relvad)<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"vlep-styrene-valeur-limite-professionnelle-sur-8-h-et-court-terme\">VLEP st\u00fcreen: 8-tunnine ja l\u00fchiajaline t\u00f6\u00f6keskkonna piirv\u00e4\u00e4rtus<\/h2>\n\n<p><a href=\"https:\/\/obera.fr\/et\/meie-nouanne\/valeur-limite-exposition-professionnelle-ou-vlep\/\" data-type=\"post\" data-id=\"1999\">23. m\u00e4rtsi 2016. aasta m\u00e4\u00e4rusega 2016-344 on kehtestatud siduvad t\u00f6\u00f6ga kokkupuute piirnormid<\/a> st\u00fcreeni jaoks.<\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>8-tunnine t\u00f6\u00f6keskkonna piirv\u00e4\u00e4rtus<\/strong> (VLEP-8h) = 100<strong>mg\/m\u00b3L\u00fchiajaline t\u00f6\u00f6keskkonna piirv\u00e4\u00e4rtus<\/strong> (VLCT 15 mn) = 200 mg\/m\u00b3.<\/p>\n<\/blockquote>\n\n<p>Siduvad t\u00f6\u00f6keskkonna piirnormid (VLEP) on reguleeritud Prantsuse <strong>t\u00f6\u00f6seadustikuga<\/strong>. Need on m\u00e4\u00e4ratletud<strong>artiklis R. 4412-149<\/strong> kui<strong>keemilise aine keskmine kontsentratsioon, mida ei tohi \u00fcletada<\/strong>: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>t\u00f6\u00f6kohal ;<\/li>\n\n\n\n<li>t\u00f6\u00f6tajate hingamistsoonis.<\/li>\n<\/ul>\n\n<p>S\u00f5ltumata sellest, kas need on <strong>soovituslikud v\u00f5i siduvad,<\/strong> n\u00f5uavad VLEPid, et ettev\u00f5tted laseksid <strong>igal aastal <\/strong>neid v\u00e4\u00e4rtusi <strong>kontrollida <\/strong> <strong>COFRACi akrediteeritud asutusel<\/strong>. T\u00f6\u00f6tajate kokkupuute hindamisel saasteainetega t\u00f6\u00f6kohal <strong>kasutatakse VLEPi v\u00e4\u00e4rtusi kontrollv\u00e4\u00e4rtusena<\/strong>. <\/p>\n\n<p>Saasteainete kontsentratsioonitaseme m\u00f5\u00f5tmisega t\u00f6\u00f6kohas \u00f5hus on v\u00f5imalik kindlaks teha, milliseid meetmeid tuleb v\u00f5tta, et :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>t\u00f6\u00f6ohutus ;<\/li>\n\n\n\n<li>riskide ennetamine ;<\/li>\n\n\n\n<li>kollektiivne kaitse.<\/li>\n<\/ul>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Pange t\u00e4hele: Prantsusmaal <a href=\"https:\/\/obera.fr\/et\/meie-nouanne\/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\/\">ei ole st\u00fcreen CMR-klassifitseeritud (kantserogeenne, mutageenne v\u00f5i reproduktiivtoksiline) keemiline aine<\/a>.<\/p>\n<\/blockquote>\n\n<p>Euroopa Liidu tasandil on <strong>st\u00fcreeniga kokkupuutega seotud tervise- ja ohutusriskid<\/strong> loetletud j\u00e4rgmiselt:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>aspiratsioonitoksilisus ;<\/li>\n\n\n\n<li>\u00e4ge sissehingamise m\u00fcrgisus &#8211; aurud ;<\/li>\n\n\n\n<li>korrosiooni naha\u00e4rritus ;<\/li>\n\n\n\n<li>t\u00f5sine silmakahjustus\/silmade \u00e4rritus ;<\/li>\n\n\n\n<li>reproduktiivtoksilisus ;<\/li>\n\n\n\n<li>krooniline m\u00fcrgisus veekeskkonnale (riskid keskkonnale).<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\" id=\"sous-quelles-formes-retrouve-t-on-les-styrenes-et-comment-les-traiter\">Millised on st\u00fcreenide vormid ja kuidas neid ravida?<\/h2>\n\n<p>St\u00fcreene leidub t\u00f6\u00f6stuses tavaliselt gaasilisel kujul. Lahendused h\u00f5lmavad tavaliselt saasteainete eraldamist t\u00f6\u00f6kohal ja nende evakueerimist v\u00e4ljapoole, s\u00f5ltuvalt <a href=\"https:\/\/obera.fr\/et\/meie-nouanne\/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\/\">regulatiivsetest piirangutest<\/a>, kas koos t\u00f6\u00f6tlemisega v\u00f5i ilma. St\u00fcreene saab filtreerida ja eraldada aktiivs\u00f6e abil. S\u00f5ltuvalt kontsentratsioonist eelistatakse   <\/p>\n\n<ul class=\"wp-block-list\">\n<li>aktiivs\u00fcsi madalate v\u00f5i v\u00e4ga madalate kontsentratsioonide puhul. Kuna aktiivs\u00fcsi suudab adsorbeerida maksimaalselt 40% oma massist, on lihtne hinnata vajaliku aktiivs\u00f6e tarbimist. <\/li>\n\n\n\n<li>Oks\u00fcdatiivsed protsessid (termiline oks\u00fcdatsioon v\u00f5i katal\u00fc\u00fctiline oks\u00fcdatsioon) suuremate kontsentratsioonide puhul ja ideaaljuhul autotermilise t\u00f6\u00f6tlemise puhul (ilma t\u00e4iendava oks\u00fcdeerijata oks\u00fcdatsiooniprotsessi s\u00e4ilitamiseks).<\/li>\n<\/ul>\n\n<p>Leiad k\u00f5ik <a href=\"https:\/\/obera.fr\/et\/produits\/traitement-cov\/\" data-type=\"page\" data-id=\"36\">lahendused lenduvate orgaaniliste \u00fchendite t\u00f6\u00f6tlemiseks aktiivs\u00f6e abil<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Obera projekteerib seadmeid, mis vastavad nendele OELidele. Lisateave st\u00fcreeni t\u00f6\u00f6keskkonna piirnormide kohta: selle m\u00fcrgine keemiline \u00fchend, asjaomased sektorid, soovitatud OEL ja v\u00f5imalikud t\u00f6\u00f6tlusviisid. <\/p>\n","protected":false},"author":4,"featured_media":98346,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"K\u00f5ik, mida peate teadma piiravate OELide ja st\u00fcreeni kohta","_seopress_titles_desc":"Lisateave st\u00fcreeni t\u00f6\u00f6keskkonna piirnormide kohta. Obera projekteerib seadmeid, mis vastavad nendele OEL-dele. ","_seopress_robots_index":"","footnotes":""},"categories":[296],"tags":[304],"class_list":["post-98523","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meie-nouanne","tag-entete-vaike","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\/et\/wp-json\/wp\/v2\/posts\/98523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/comments?post=98523"}],"version-history":[{"count":1,"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/posts\/98523\/revisions"}],"predecessor-version":[{"id":98548,"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/posts\/98523\/revisions\/98548"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/media\/98346"}],"wp:attachment":[{"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/media?parent=98523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/categories?post=98523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obera.fr\/et\/wp-json\/wp\/v2\/tags?post=98523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}