{"id":367968,"date":"2020-11-02T15:10:00","date_gmt":"2020-11-02T14:10:00","guid":{"rendered":"https:\/\/hunterlab.de\/metode-instrumentale-de-masurare-pentru-lichide-galbui-si-aproape-incolore\/"},"modified":"2025-08-08T18:41:34","modified_gmt":"2025-08-08T17:41:34","slug":"metode-instrumentale-de-masurare-pentru-lichide-galbui-si-aproape-incolore","status":"publish","type":"post","link":"https:\/\/www.hunterlab.eu\/ro\/metode-instrumentale-de-masurare-pentru-lichide-galbui-si-aproape-incolore\/","title":{"rendered":"Metode instrumentale de m\u0103surare pentru lichide g\u0103lbui \u0219i aproape incolore"},"content":{"rendered":"

[et_pb_section fb_built=”1″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text content_tablet=”<\/p>\n

M\u0103surarea culorii produselor de substitu\u021bie a c\u0103rnii<\/h2>\n

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M\u0103surarea culorii produselor de substitu\u021bie a c\u0103rnii<\/h2>\n

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Numerele de culori APHA, Gardner \u0219i Lovibond\u00ae<\/h2>\n

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Metoda compara\u021biei optice cu standarde fizice are dou\u0103 sl\u0103biciuni inerente – una este fluctua\u021bia standardelor de culoare \u00een func\u021bie de edi\u021bie sau vechime, cealalt\u0103 este variabilitatea observatorului uman. Pentru a elimina aceste sl\u0103biciuni, exist\u0103 metode de m\u0103surare instrumental\u0103 pentru determinarea num\u0103rului de culori. Acestea provin din industria chimic\u0103 \u0219i farmaceutic\u0103, dar standardele de culoare sunt utilizate \u0219i \u00een sectorul apelor reziduale \u0219i al materialelor plastice. <\/strong><\/p>\n

Tipurile de probe pot fi: Lacuri – Uleiuri – Solu\u021bii – Suspensii – Gr\u0103simi – Acizi gra\u0219i – Rezine – Siropuri – Cear\u0103<\/em><\/p>\n

\u00cen acest scop, ASTM<\/strong>, de exemplu, a definit \u00een mod clar atribuirea standardelor vizuale la valorile de culoare m\u0103surate pe dispozitiv. \u00cen principiu, toate cele trei numere de culoare sunt m\u0103surate \u00een cuve sau flacoane ISO \u00een transmisie total\u0103 (TTRAN)<\/strong>, deoarece probele sunt lichide transparente. Substan\u021bele semisolide precum ceara sau vaselina sunt analizate \u00een stare topit\u0103. <\/p>\n

[\/et_pb_text][difl_imagecarousel item_desktop=”1″ item_tablet=”1″ loop=”on” autoplay=”on” arrow=”on” ic_content_background_bgcolor=”RGBA(28,28,28,0.8)” arrow_color=”#FFFFFF” arrow_background=”#073466″ caption_padding=”10px||||false|false” _builder_version=”4.24.3″ _module_preset=”default” locked=”off” global_colors_info=”{}”][difl_imagecarouselitem image=”https:\/\/hunterlab.de\/wp-content\/uploads\/2024\/04\/Farbmessung-von-gelblicher-Fluessigkeit-HunterLab-Vista-1920w.jpg” caption=”M\u0103surarea lichidului g\u0103lbui \u00een cuv\u0103 de sticl\u0103 de 10 mm.” vertical_align=”flex-end” ic_button_button_url_new_window=”1″ _builder_version=”4.24.3″ _module_preset=”default” caption_text_align=”center” caption_text_color=”#FFFFFF” background_enable_color=”off” global_colors_info=”{}”][\/difl_imagecarouselitem][difl_imagecarouselitem image=”https:\/\/hunterlab.de\/wp-content\/uploads\/2024\/04\/Farbmessung-von-roetlicher-Fluessigkeit-HunterLab-Vista-1920w.jpg” caption=”M\u0103surarea culorii lichidului ro\u0219u \u00een cuv\u0103 de sticl\u0103 de 50 mm.” vertical_align=”flex-end” ic_button_button_url_new_window=”1″ _builder_version=”4.24.3″ _module_preset=”default” caption_text_align=”center” caption_text_color=”#FFFFFF” background_enable_color=”off” global_colors_info=”{}”][\/difl_imagecarouselitem][difl_imagecarouselitem image=”https:\/\/hunterlab.de\/wp-content\/uploads\/2024\/04\/Vista-Anwendung-heisse-Fluessigkeiten-Peltier-w-2880w.png” caption=”Vista cu element de \u00eenc\u0103lzire pentru probe solide care sunt m\u0103surate \u00een stare lichid\u0103.” vertical_align=”flex-end” ic_button_button_url_new_window=”1″ _builder_version=”4.24.3″ _module_preset=”default” caption_text_align=”center” caption_text_color=”#FFFFFF” background_enable_color=”off” global_colors_info=”{}”][\/difl_imagecarouselitem][difl_imagecarouselitem image=”https:\/\/hunterlab.de\/wp-content\/uploads\/2024\/04\/Vista-APHA-EP-Farbzahl-Farbmessung-an-Kleinstmengen-Pharma-1920w.jpg” caption=”M\u0103surarea culorii lichidului g\u0103lbui \u00een microcuveta.” vertical_align=”flex-end” ic_button_button_url_new_window=”1″ _builder_version=”4.24.3″ _module_preset=”default” caption_text_align=”center” caption_text_color=”#FFFFFF” background_enable_color=”off” global_colors_info=”{}”][\/difl_imagecarouselitem][\/difl_imagecarousel][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.24.3″ text_font_size=”18px” header_3_font=”||||||||” background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}”]<\/p>\n

Dispozitivul potrivit<\/h4>\n

Colorimetrul Vista<\/a> este ideal pentru m\u0103surarea numerelor de culoare men\u021bionate. Acesta este un spectrofotometru cu fascicul dublu cu geometrie de m\u0103surare difuz\u0103\/0\u00b0<\/strong>, care poate fi utilizat pentru a m\u0103sura transmisia probelor lichide (\u0219i a probelor solide transparente, dac\u0103 este necesar) cu o manipulare simpl\u0103. Acest dispozitiv poate fi utilizat pentru a analiza probe cu toate grosimile de strat de la 10 mm la 50 mm<\/strong>. Selectarea num\u0103rului de culoare, \u00eempreun\u0103 cu grosimea stratului examinat, este denumit\u0103 indice. Dup\u0103 m\u0103surare, pot fi citite valorile de culoare ale probei \u0219i diferite scale \u0219i indici de culoare, \u00een special indicii APHA, Gardner \u0219i Lovibond\u00ae<\/strong>. <\/p>\n

Selectarea cuvei<\/h4>\n

\u00cen func\u021bie de num\u0103rul culorii, sunt disponibili indici diferi\u021bi pentru cuve, flacoane ISO, microcuvete \u0219i ultra-microcuvete cu lungimi de parcurs de la 10 mm la 50 mm. Acest lucru \u00eenseamn\u0103 c\u0103 probele pot fi m\u0103surate \u00een mod fiabil \u00een diferite cuve simple sau rezistente la acizi sau temperaturi, din plastic sau sticl\u0103, cu suporturile de cuve corespunz\u0103toare. Vista ofer\u0103 op\u021biunea special\u0103 de a calcula valoarea de ie\u0219ire pentru o grosime a stratului de acoperire diferit\u0103 de cea m\u0103surat\u0103 pentru a ob\u021bine valori \u00een conformitate cu standardele ASTM, DIN \u0219i ISO<\/strong>. Acest lucru elimin\u0103 adesea necesitatea de a achizi\u021biona cuvete speciale costisitoare. <\/p>\n

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\"HunterLab\"<\/p>\n

Exemplu practic al metodei de m\u0103surare a num\u0103rului de culori Lovibond<\/h3>\n

Citi\u021bi \u00een revista noastr\u0103 actual\u0103 HunterLab NEWS cum m\u0103sur\u0103m numerele de culoare cu colorimetrul de transmisie Vista, la ce trebuie s\u0103 fi\u021bi aten\u021bi \u00een ceea ce prive\u0219te manipularea probelor \u0219i ce alternative sunt disponibile. Revista con\u021bine \u0219i alte articole interesante pe tema m\u0103sur\u0103rii culorii lichidelor \u0219i solidelor. <\/p>\n

Completa\u021bi cele dou\u0103 c\u00e2mpuri de mai jos \u0219i v\u0103 vom trimite revista \u00een format PDF!<\/em><\/span><\/p>\n

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M\u0103surarea culorii produselor de substitu\u021bie a c\u0103rnii<\/h2>\n

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M\u0103surarea culorii produselor de substitu\u021bie a c\u0103rnii<\/h2>\n

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Concluzie<\/h3>\n

Lichide de la aproape incolore la g\u0103lbui, galben-verzui sau ro\u0219iatice, clasificarea \u0219i reproducerea este simpl\u0103 \u0219i conform\u0103 cu standardele HunterLab Vista<\/a>.<\/p>\n

 <\/p>\n

Dori\u021bi s\u0103 \u0219ti\u021bi cum putem determina valorile de culoare ale probei dumneavoastr\u0103?<\/strong> Lua\u021bi leg\u0103tura<\/a> cu noi, exper\u021bii no\u0219tri \u00een colorimetrie<\/a> a\u0219teapt\u0103 cu ner\u0103bdare s\u0103 v\u0103 cunoasc\u0103.<\/p>\n<\/blockquote>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

Metoda compara\u021biei optice cu standarde fizice are dou\u0103 sl\u0103biciuni inerente – una este fluctua\u021bia standardelor de culoare \u00een func\u021bie de edi\u021bie sau vechime, cealalt\u0103 este variabilitatea observatorului uman. Pentru a elimina aceste sl\u0103biciuni, exist\u0103 metode de m\u0103surare instrumental\u0103 pentru determinarea num\u0103rului de culori. Acestea provin din industria chimic\u0103 \u0219i farmaceutic\u0103, dar standardele de culoare sunt utilizate \u0219i \u00een sectorul apelor reziduale \u0219i al materialelor plastice. <\/p>\n","protected":false},"author":2,"featured_media":367970,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[1564],"tags":[1751,1565],"class_list":["post-367968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-colorimetrie-ro","tag-lichide-incolore","tag-masurarea-culorii"],"_links":{"self":[{"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/posts\/367968","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/comments?post=367968"}],"version-history":[{"count":0,"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/posts\/367968\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/media\/367970"}],"wp:attachment":[{"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/media?parent=367968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/categories?post=367968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hunterlab.eu\/ro\/wp-json\/wp\/v2\/tags?post=367968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}