{"id":1286,"date":"2024-10-22T10:08:12","date_gmt":"2024-10-22T10:08:12","guid":{"rendered":"https:\/\/nepsi.leidardev.com\/\/\/?post_type=lesson&#038;p=1286"},"modified":"2025-08-04T10:33:10","modified_gmt":"2025-08-04T10:33:10","slug":"chapter-2-factors-that-influence-rcs-generation-and-exposure-1-1","status":"publish","type":"lesson","link":"https:\/\/training.nepsi.eu\/ro\/lesson\/control-of-silica-dust-in-specific-activities\/chapter-2-factors-that-influence-rcs-generation-and-exposure-1-1\/","title":{"rendered":"Chapter 2 \u2013 Factors that influence RCS generation and exposure 1\/1"},"content":{"rendered":"<div class=\"wp-block-c83-section uk-section uk-background-norepeat\">\n<div class=\"wp-block-c83-container uk-container\">\n<h1 class=\"wp-block-c83-post-title uk-text-left uk-heading-custom\">Capitolul 2 - Factori care influen\u021beaz\u0103 generarea \u0219i expunerea la SCR<\/h1>\n\n\n\n<p class=\"wp-block-c83-text uk-text-large uk-text-left uk-text-custom\">Procesele uscate, energofage, tind s\u0103 genereze cel mai mult praf. E vorba, printre altele, de forare, m\u0103cinare, amestecare, concasare, ambalare \u0219i manipulare \u00een vrac. Pentru mai multe informa\u021bii despre procese industriale specifice, pute\u021bi consulta fi\u0219ele detaliate de sarcini NEPSI!<\/p>\n\n\n\n<p class=\"wp-block-c83-text uk-text-large uk-text-left uk-text-custom\">Face\u021bi clic pe fiecare imagine pentru a descoperi al\u021bi factori critici.<\/p>\n\n\n\n<p class=\"wp-block-c83-text uk-text-large uk-text-left uk-text-custom\"><strong>Dup\u0103 ce le-a\u021bi parcurs pe toate, face\u021bi clic pe \u201e\u00cenainte\u201d pentru a continua.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-c83-vspace c83-vspace-small\"><\/div>\n\n\n\n<div class=\"wp-block-c83-grid uk-grid uk-grid-column-medium uk-grid-row-medium  uk-child-width-1-1@s uk-child-width-1-2@l\" uk-grid=\"masonry: false; parallax: 0; parallaxStart: 0; parallaxEnd: 0; parallaxJustify: false;\">\n<div class=\"wp-block-c83-grid-item\">\n<div class=\"wp-block-c83-quiz-reveal-card uk-flex uk-flex-left uk-flex-top uk-flex-wrap uk-flex-column\" id=\"my-modal-1\"><div class=\"uk-height-small uk-background-center-center uk-background-muted-background-darkest uk-background-blend-multiply uk-width-1-1 uk-background-cover uk-background-norepeat uk-flex uk-flex-middle uk-flex-center uk-flex-top uk-flex-wrap uk-flex-column uk-padding\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/Crystal.jpg)\"><button type=\"button\" data-uk-toggle=\"target: #my-modal-1-modal; animation: uk-animation-scale-up\" data-uk-marker=\"true\"><\/button><h4 class=\"uk-text-white uk-text-large uk-text-bold uk-margin-top uk-margin-remove-bottom uk-text-center\">Con\u021binutul de silice cristalin\u0103 al materialului prelucrat<\/h4><\/div><div id=\"my-modal-1-modal\" class=\"wp-block-c83-quiz-reveal-card__modal uk-modal-full\" uk-modal=\"esc-close: true; bg-close: true; stack: false;\"><div class=\"uk-modal-dialog uk-modal-body uk-background-muted-background-darkest uk-height-1-1 uk-flex uk-flex-column uk-flex-middle uk-flex-center\"><button class=\"uk-modal-close uk-close-large uk-button uk-button-default uk-position-absolute uk-position-large uk-position-top-right uk-padding-small\" type=\"button\"><svg width=\"20\" height=\"20\" viewbox=\"0 0 20 20\"><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"1\" y1=\"1\" x2=\"19\" y2=\"19\"><\/line><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"19\" y1=\"1\" x2=\"1\" y2=\"19\"><\/line><\/svg><\/button><div class=\"uk-flex uk-flex-column uk-flex-row@m uk-flex-left uk-flex-middle uk-width-4-5\"><div class=\"uk-background-center-center uk-height-small uk-width-1-1 uk-width-1-3@m uk-height-1-1 uk-background-cover uk-background-norepeat\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/Crystal.jpg)\"><\/div><div class=\"uk-width-1-1 uk-width-2-3@m\"><h3 class=\"uk-margin-remove-top uk-text-white\">Con\u021binutul de silice cristalin\u0103 al materialului prelucrat<\/h3><p class=\"uk-margin-remove uk-text-white\">Av\u00e2nd \u00een vedere c\u0103 procentul de silice cristalin\u0103 liber\u0103 poate varia \u00eentre 0 \u0219i aproape 100%, este important s\u0103 cunoa\u0219te\u021bi con\u021binutul exact de silice din mineralul cu care lucra\u021bi. Ve\u021bi g\u0103si procentele specifice \u00een Ghidul de bune practici NEPSI sau \u00een informa\u021biile tehnice furnizate de produc\u0103torii de materiale. Dac\u0103 ave\u021bi dubii, solicita\u021bi mai multe l\u0103muriri.<\/p><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-c83-grid-item\">\n<div class=\"wp-block-c83-quiz-reveal-card uk-flex uk-flex-left uk-flex-top uk-flex-wrap uk-flex-column\" id=\"my-modal-2\"><div class=\"uk-height-small uk-background-center-center uk-background-muted-background-darkest uk-background-blend-multiply uk-width-1-1 uk-background-cover uk-background-norepeat uk-flex uk-flex-middle uk-flex-center uk-flex-top uk-flex-wrap uk-flex-column uk-padding\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/NEPSI-Dust-fractions-graphic-v2.jpg)\"><button type=\"button\" data-uk-toggle=\"target: #my-modal-2-modal; animation: uk-animation-scale-up\" data-uk-marker=\"true\"><\/button><h4 class=\"uk-text-white uk-text-large uk-text-bold uk-margin-top uk-margin-remove-bottom uk-text-center\">Gradul de fine\u021be al materialului prelucrat<\/h4><\/div><div id=\"my-modal-2-modal\" class=\"wp-block-c83-quiz-reveal-card__modal uk-modal-full\" uk-modal=\"esc-close: true; bg-close: true; stack: false;\"><div class=\"uk-modal-dialog uk-modal-body uk-background-muted-background-darkest uk-height-1-1 uk-flex uk-flex-column uk-flex-middle uk-flex-center\"><button class=\"uk-modal-close uk-close-large uk-button uk-button-default uk-position-absolute uk-position-large uk-position-top-right uk-padding-small\" type=\"button\"><svg width=\"20\" height=\"20\" viewbox=\"0 0 20 20\"><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"1\" y1=\"1\" x2=\"19\" y2=\"19\"><\/line><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"19\" y1=\"1\" x2=\"1\" y2=\"19\"><\/line><\/svg><\/button><div class=\"uk-flex uk-flex-column uk-flex-row@m uk-flex-left uk-flex-middle uk-width-4-5\"><div class=\"uk-background-center-center uk-height-small uk-width-1-1 uk-width-1-3@m uk-height-1-1 uk-background-cover uk-background-norepeat\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/NEPSI-Dust-fractions-graphic-v2.jpg)\"><\/div><div class=\"uk-width-1-1 uk-width-2-3@m\"><h3 class=\"uk-margin-remove-top uk-text-white\">Gradul de fine\u021be al materialului prelucrat<\/h3><p class=\"uk-margin-remove uk-text-white\">C\u00e2nd se lucreaz\u0103 cu praf, trebuie acordat\u0103 aten\u021bie deosebit\u0103 celor trei frac\u021biuni de praf: inhalabil\u0103, toracic\u0103 \u0219i respirabil\u0103. \u00cen cazul silicei cristaline, cea mai important\u0103 este frac\u021biunea de praf respirabil, datorit\u0103 efectelor poten\u021biale nocive asupra s\u0103n\u0103t\u0103\u021bii umane. \u00cen func\u021bie de materialul cu care lucra\u021bi, dimensiunea particulelor poate varia semnificativ. Materiile prime care se prezint\u0103 sub form\u0103 de pulberi fine sunt susceptibile s\u0103 con\u021bin\u0103 particule cu dimensiuni corespunz\u0103toare frac\u021biuni respirabile. Alte materii prime pot fi ini\u021bial destul de grunjoase, dar devin mai fine \u00een urma prelucr\u0103rilor industriale energofage.<\/p><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-c83-grid-item\">\n<div class=\"wp-block-c83-quiz-reveal-card uk-flex uk-flex-left uk-flex-top uk-flex-wrap uk-flex-column\" id=\"my-modal-3\"><div class=\"uk-height-small uk-background-center-center uk-background-muted-background-darkest uk-background-blend-multiply uk-width-1-1 uk-background-cover uk-background-norepeat uk-flex uk-flex-middle uk-flex-center uk-flex-top uk-flex-wrap uk-flex-column uk-padding\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/Sand-collage-v2-scaled.jpg)\"><button type=\"button\" data-uk-toggle=\"target: #my-modal-3-modal; animation: uk-animation-scale-up\" data-uk-marker=\"true\"><\/button><h4 class=\"uk-text-white uk-text-large uk-text-bold uk-margin-top uk-margin-remove-bottom uk-text-center\">Gradul de umiditate al materialului prelucrat<\/h4><\/div><div id=\"my-modal-3-modal\" class=\"wp-block-c83-quiz-reveal-card__modal uk-modal-full\" uk-modal=\"esc-close: true; bg-close: true; stack: false;\"><div class=\"uk-modal-dialog uk-modal-body uk-background-muted-background-darkest uk-height-1-1 uk-flex uk-flex-column uk-flex-middle uk-flex-center\"><button class=\"uk-modal-close uk-close-large uk-button uk-button-default uk-position-absolute uk-position-large uk-position-top-right uk-padding-small\" type=\"button\"><svg width=\"20\" height=\"20\" viewbox=\"0 0 20 20\"><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"1\" y1=\"1\" x2=\"19\" y2=\"19\"><\/line><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"19\" y1=\"1\" x2=\"1\" y2=\"19\"><\/line><\/svg><\/button><div class=\"uk-flex uk-flex-column uk-flex-row@m uk-flex-left uk-flex-middle uk-width-4-5\"><div class=\"uk-background-center-center uk-height-small uk-width-1-1 uk-width-1-3@m uk-height-1-1 uk-background-cover uk-background-norepeat\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/Sand-collage-v2-scaled.jpg)\"><\/div><div class=\"uk-width-1-1 uk-width-2-3@m\"><h3 class=\"uk-margin-remove-top uk-text-white\">Gradul de umiditate al materialului prelucrat<\/h3><p class=\"uk-margin-remove uk-text-white\">Umiditatea unui material este, de regul\u0103, exprimat\u0103 procentual \u00een raport cu greutatea sa. Apa ajut\u0103 la suprimarea prafului. Prin urmare, materialele cu un grad \u00eenalt de umiditate tind s\u0103 emane mai pu\u021bin praf la manipulare \u0219i utilizare. Re\u021bine\u021bi c\u0103 materiile prime cu un con\u021binut ridicat de umiditate se pot usca \u00een timpul manipul\u0103rii \u0219i utiliz\u0103rii \u00een faza de prelucrare industrial\u0103, ceea ce le face s\u0103 emane mai mult praf.<\/p><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-c83-grid-item\">\n<div class=\"wp-block-c83-quiz-reveal-card uk-flex uk-flex-left uk-flex-top uk-flex-wrap uk-flex-column\" id=\"my-modal-4\"><div class=\"uk-height-small uk-background-center-center uk-background-muted-background-darkest uk-background-blend-multiply uk-width-1-1 uk-background-cover uk-background-norepeat uk-flex uk-flex-middle uk-flex-center uk-flex-top uk-flex-wrap uk-flex-column uk-padding\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/Lungs.jpg)\"><button type=\"button\" data-uk-toggle=\"target: #my-modal-4-modal; animation: uk-animation-scale-up\" data-uk-marker=\"true\"><\/button><h4 class=\"uk-text-white uk-text-large uk-text-bold uk-margin-top uk-margin-remove-bottom uk-text-center\">Durata de expunere la niveluri ridicate de praf<\/h4><\/div><div id=\"my-modal-4-modal\" class=\"wp-block-c83-quiz-reveal-card__modal uk-modal-full\" uk-modal=\"esc-close: true; bg-close: true; stack: false;\"><div class=\"uk-modal-dialog uk-modal-body uk-background-muted-background-darkest uk-height-1-1 uk-flex uk-flex-column uk-flex-middle uk-flex-center\"><button class=\"uk-modal-close uk-close-large uk-button uk-button-default uk-position-absolute uk-position-large uk-position-top-right uk-padding-small\" type=\"button\"><svg width=\"20\" height=\"20\" viewbox=\"0 0 20 20\"><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"1\" y1=\"1\" x2=\"19\" y2=\"19\"><\/line><line fill=\"none\" stroke=\"#000\" stroke-width=\"1.4\" x1=\"19\" y1=\"1\" x2=\"1\" y2=\"19\"><\/line><\/svg><\/button><div class=\"uk-flex uk-flex-column uk-flex-row@m uk-flex-left uk-flex-middle uk-width-4-5\"><div class=\"uk-background-center-center uk-height-small uk-width-1-1 uk-width-1-3@m uk-height-1-1 uk-background-cover uk-background-norepeat\" style=\"background-image:url(https:\/\/training.nepsi.eu\/wp-content\/uploads\/2024\/10\/Lungs.jpg)\"><\/div><div class=\"uk-width-1-1 uk-width-2-3@m\"><h3 class=\"uk-margin-remove-top uk-text-white\">Durata de expunere la niveluri ridicate de praf<\/h3><p class=\"uk-margin-remove uk-text-white\">\u00cen cazul expunerii prelungite la niveluri excesive de acest tip de praf, eliminarea prafului respirabil din pl\u0103m\u00e2ni devine dificil\u0103, iar acumularea sa poate duce la efecte ireversibile asupra s\u0103n\u0103t\u0103\u021bii.<\/p><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-c83-vspace c83-vspace-small\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-c83-text uk-text-left\"><\/p>","protected":false},"parent":329,"menu_order":8,"template":"","course":[11],"label":[19],"class_list":["post-1286","lesson","type-lesson","status-publish","hentry","course-control-silica-dust-in-specific-activities","label-lesson"],"_links":{"self":[{"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/lesson\/1286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/lesson"}],"about":[{"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/types\/lesson"}],"version-history":[{"count":0,"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/lesson\/1286\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/lesson\/329"}],"wp:attachment":[{"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/media?parent=1286"}],"wp:term":[{"taxonomy":"course","embeddable":true,"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/course?post=1286"},{"taxonomy":"label","embeddable":true,"href":"https:\/\/training.nepsi.eu\/ro\/wp-json\/wp\/v2\/label?post=1286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}