PCDDs\/PCDFs\/PCBs marqu\u00e9s : solutions\/m\u00e9langes<\/li>\n<\/ul>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_4,3_4″ disabled_on=”on|on|on” module_id=”dutch7pcb” _builder_version=”4.27.4″ _module_preset=”_initial” disabled=”on” global_colors_info=”{}”][et_pb_column type=”1_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_column][et_pb_column type=”3_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”72fd5a01-ef11-4206-8bd8-3b3f9f566b91″ global_colors_info=”{}”]<\/p>\n
Dutch 7 PCBs : BP-D7<\/h4>\n
Native PCB Congener Solution\/Mixture – 1.2 mL – nonane.<\/p>\n
[\/et_pb_text][dvmd_tablepress_styler tbl_id=”#315″ _builder_version=”4.27.4″ _module_preset=”75ee4aa5-e4a9-435f-b9d8-495d5c1ee9b2″ global_colors_info=”{}”][\/dvmd_tablepress_styler][et_pb_text _builder_version=”4.27.4″ _module_preset=”72fd5a01-ef11-4206-8bd8-3b3f9f566b91″ global_colors_info=”{}”]<\/p>\n
MBP-D7<\/h4>\n
Mass-Labelled PCB Congener Solution\/Mixture – 1.2 mL – nonane.<\/p>\n
[\/et_pb_text][dvmd_tablepress_styler tbl_id=”#316″ col_hide=”0″ _builder_version=”4.27.4″ _module_preset=”cfc69ea4-0a8e-4fa7-9ce6-0d90d2ae7ffa” global_colors_info=”{}”][\/dvmd_tablepress_styler][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Section” _builder_version=”4.27.4″ _module_preset=”default” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
Utilisation des PCBs<\/h3>\n
Tout d’abord, des ann\u00e9es 30 aux ann\u00e9es 70, les PCB<\/strong>\u00a0\u00e9taient surtout \u00e9t\u00e9 utilis\u00e9s sous forme de m\u00e9langes. En effet, ces compos\u00e9s \u00e9taient reconnus pour leurs propri\u00e9t\u00e9s isolantes et leur stabilit\u00e9 chimique et physique.\u00a0<\/span><\/p>\nIls \u00e9taient notamment utilis\u00e9s dans :<\/span><\/p>\n\n- les transformateurs \u00e9lectriques,<\/span><\/li>\n
- les condensateurs,<\/span><\/li>\n
- les isolateurs,<\/span><\/li>\n
- les fluides caloporteurs ou hydrauliques,<\/span><\/li>\n
- les fours \u00e0 micro-ondes,<\/span><\/li>\n
- des adh\u00e9sifs ou des peintures\u2026<\/span><\/li>\n<\/ul>\n
En somme, ils sont consid\u00e9r\u00e9s comme des isolants \u00e9lectriques presque ininflammables et sont reconnus pour leurs excellentes propri\u00e9t\u00e9s di\u00e9lectriques et de conduction thermique.<\/span><\/p>\n[\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n
PCBs et pollution<\/h3>\n
Bien que l<\/span>es PCB<\/strong>\u00a0sont interdits en France depuis 1987 et class\u00e9s parmi les polluants organiques persistants (POPs), <\/strong>la pollution s’installe partout car ils\u00a0sont stables chimiquement et peu biod\u00e9gradable.<\/span><\/p>\nEn effet, ces compos\u00e9s stables s\u2019accumulent progressivement dans l\u2019environnement, en particulier dans les s\u00e9diments marins ou de rivi\u00e8re. En cons\u00e9quence, on les retrouve tout au long de la cha\u00eene alimentaire puisqu’ils se concentrent dans les tissus graisseux des animaux. Les PCB\u00a0sont surtout pr\u00e9sents dans les produits d’origine animale : poissons, viande, \u0153ufs, produits laitiers. C’est pourquoi l\u2019alimentation repr\u00e9sente la voie de contamination principale de la population : environ 90% de l\u2019exposition totale.<\/span><\/p>\nPour conclure, ces polluants chimiques sont divis\u00e9s en deux types de cat\u00e9gories\u00a0:<\/span><\/span><\/p>\n\n- les PCB \u201cDioxin-Like\u201d ou PCB-DL dont la toxicit\u00e9 est toujours exprim\u00e9e en \u00e9quivalent toxique par rapport \u00e0 la TCDD (2,3,7,8-T\u00e9tra-Chloro-Dibenzo-para-Dioxine),<\/span><\/li>\n
- les PCB \u201cNon Dioxin-Like\u201d ou PCB-NDL, que l\u2019on retrouve le plus souvent dans les poissons de rivi\u00e8re.<\/span><\/li>\n<\/ul>\n
<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” admin_label=”Section” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||true|false” custom_padding_tablet=”80px||80px||true|false” custom_padding_phone=”80px||80px||true|false” da_disable_devices=”off|off|off” global_module=”15289″ saved_tabs=”all” locked=”off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_button button_url=”#Contact_us” button_text=”Contact us” button_alignment=”center” _builder_version=”4.27.4″ _module_preset=”default” custom_button=”on” button_bg_color=”#e5ae19″ button_border_color=”#e5ae19″ button_border_radius=”3px” global_colors_info=”{}” button_bg_color__hover_enabled=”on|hover” button_bg_color__hover=”#FFFFFF” button_bg_enable_color__hover=”on” button_text_color__hover_enabled=”on|hover” button_text_color__hover=”#e5ae19″ button_border_color__hover_enabled=”on|hover” button_border_color__hover=”#e5ae19″][\/et_pb_button][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_font=”||||||||” text_font_size=”17px” header_4_font=”||||||||” header_4_text_color=”#4B6587″ link_option_url=”#Contact_us” locked=”off” global_colors_info=”{}”]<\/p>\n
Une question ? Contactez-nous \u00e0 l’aide du formulaire de contact. Nous serons ravis de vous conseiller.<\/strong><\/h4>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ fullwidth=”on” custom_padding_last_edited=”on|phone” admin_label=”Section” _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”||||true|false” custom_padding_tablet=”||||true|false” custom_padding_phone=”||||true|false” da_disable_devices=”off|off|off” global_module=”17455″ saved_tabs=”all” locked=”off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_fullwidth_header subhead=”<h2 style="text-align: center;">The other Wellington <span>categories<\/span><\/h2>” _builder_version=”4.27.4″ _module_preset=”beff1669-d35b-4e4a-b0b6-a7b8af6138c6″ subhead_font_size=”30px” custom_padding=”||||true|false” custom_padding_tablet=”80px||80px||true|false” custom_padding_phone=”80px||80px||true|false” custom_padding_last_edited=”on|phone” global_colors_info=”{}”][\/et_pb_fullwidth_header][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|phone” admin_label=”Section” module_id=”MPFAC-MXA” _builder_version=”4.27.4″ _module_preset=”default” background_color=”RGBA(255,255,255,0)” transform_scale_tablet=”” transform_scale_phone=”” transform_scale_last_edited=”on|desktop” transform_translate=”0px|-61px” transform_translate_tablet=”0px|-61px” transform_translate_phone=”0px|-61px” transform_translate_last_edited=”on|desktop” transform_translate_linked=”off” transform_rotate_tablet=”” transform_rotate_phone=”” transform_rotate_last_edited=”on|desktop” transform_skew_tablet=”” transform_skew_phone=”” transform_skew_last_edited=”on|desktop” transform_origin_tablet=”” transform_origin_phone=”” transform_origin_last_edited=”on|desktop” transform_styles_last_edited=”on|desktop” custom_margin_phone=”0px||||false|false” custom_padding=”0px|||||” custom_padding_tablet=”80px||80px||true|false” custom_padding_phone=”80px||80px||true|false” top_divider_color=”#4B6587″ top_divider_height=”30px” top_divider_flip=”vertical” transform_styles_tablet=”” transform_styles_phone=”” da_popup_slug=”MPFAC-MXA” da_disable_devices=”off|off|off” global_module=”8227″ saved_tabs=”all” locked=”off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ use_custom_gutter=”on” gutter_width=”2″ make_equal=”on” _builder_version=”4.21.0″ _module_preset=”default” custom_padding=”0px|||||” locked=”off” global_colors_info=”{}”][et_pb_column type=”1_4″ _builder_version=”4.21.0″ _dynamic_attributes=”link_option_url” _module_preset=”default” background_color=”#FFFFFF” custom_padding=”10px|10px|10px|10px|true|true” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjgyMjQiLCJlbmFibGVfaHRtbCI6Im9mZiJ9fQ==@” box_shadow_style=”preset3″ global_colors_info=”{}” transform_styles__hover_enabled=”on|hover” transform_scale__hover_enabled=”on|hover” transform_translate__hover_enabled=”on|desktop” transform_rotate__hover_enabled=”on|desktop” transform_skew__hover_enabled=”on|desktop” transform_origin__hover_enabled=”on|desktop” transform_scale__hover=”103%|103%”][et_pb_image src=”https:\/\/bcp-instruments.com\/wp-content\/uploads\/2021\/10\/molecules.png” title_text=”molecules” _builder_version=”4.16.0″ _module_preset=”default” width=”27%” max_width=”100%” min_height=”60px” height=”60px” max_height=”60px” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_font=”Nunito|500|||||||” text_text_color=”#4B6587″ text_line_height=”1.5em” custom_padding=”13px||20px||false|false” border_width_top=”3px” border_color_top=”#e5ae19″ border_color_bottom=”#e5ae19″ global_colors_info=”{}” border_color_bottom__hover=”#4B6587″ border_color_bottom__hover_enabled=”on|hover”]<\/p>\n
PFAS, Substances per- & polyfluoroalkyl\u00e9es<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.21.0″ _dynamic_attributes=”link_option_url” _module_preset=”default” background_color=”#FFFFFF” custom_padding=”10px|10px|10px|10px|true|true” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjgyMzMiLCJlbmFibGVfaHRtbCI6Im9mZiJ9fQ==@” box_shadow_style=”preset3″ global_colors_info=”{}” transform_styles__hover_enabled=”on|hover” transform_scale__hover_enabled=”on|hover” transform_translate__hover_enabled=”on|desktop” transform_rotate__hover_enabled=”on|desktop” transform_skew__hover_enabled=”on|desktop” transform_origin__hover_enabled=”on|desktop” transform_scale__hover=”103%|103%”][et_pb_image src=”http:\/\/bcp-instruments.com\/wp-content\/uploads\/2021\/10\/flamme-de-feu.png” title_text=”molecules” _builder_version=”4.19.0″ _module_preset=”default” width=”27%” max_width=”100%” min_height=”60px” height=”60px” max_height=”60px” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.18.0″ _module_preset=”default” text_font=”Nunito|500|||||||” text_text_color=”#4B6587″ text_line_height=”1.5em” custom_padding=”13px||20px||false|false” border_width_top=”3px” border_color_top=”#e5ae19″ border_color_bottom=”#e5ae19″ global_colors_info=”{}” border_color_bottom__hover=”#4B6587″ border_color_bottom__hover_enabled=”on|hover”]<\/p>\n
Halogenated flame retardants, HFRs and other compounds<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.21.0″ _dynamic_attributes=”link_option_url” _module_preset=”default” background_color=”#FFFFFF” custom_padding=”10px|10px|10px|10px|true|true” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjgyMzgiLCJlbmFibGVfaHRtbCI6Im9mZiJ9fQ==@” box_shadow_style=”preset3″ global_colors_info=”{}” transform_styles__hover_enabled=”on|hover” transform_scale__hover_enabled=”on|hover” transform_translate__hover_enabled=”on|desktop” transform_rotate__hover_enabled=”on|desktop” transform_skew__hover_enabled=”on|desktop” transform_origin__hover_enabled=”on|desktop” transform_scale__hover=”103%|103%”][et_pb_image src=”http:\/\/bcp-instruments.com\/wp-content\/uploads\/2021\/10\/chimie.png” title_text=”molecules” _builder_version=”4.19.0″ _module_preset=”default” width=”27%” max_width=”100%” min_height=”60px” height=”60px” max_height=”60px” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.18.0″ _module_preset=”default” text_font=”Nunito|500|||||||” text_text_color=”#4B6587″ text_line_height=”1.5em” custom_padding=”13px||20px||false|false” border_width_top=”3px” border_color_top=”#e5ae19″ border_color_bottom=”#e5ae19″ global_colors_info=”{}” border_color_bottom__hover=”#4B6587″ border_color_bottom__hover_enabled=”on|hover”]<\/p>\n
Polychlorinated biphenyls, PCBs<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.21.0″ _dynamic_attributes=”link_option_url” _module_preset=”default” background_color=”#FFFFFF” custom_padding=”10px|10px|10px|10px|true|true” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjgyNDMiLCJlbmFibGVfaHRtbCI6Im9mZiJ9fQ==@” box_shadow_style=”preset3″ global_colors_info=”{}” transform_styles__hover_enabled=”on|hover” transform_scale__hover_enabled=”on|hover” transform_translate__hover_enabled=”on|desktop” transform_rotate__hover_enabled=”on|desktop” transform_skew__hover_enabled=”on|desktop” transform_origin__hover_enabled=”on|desktop” transform_scale__hover=”103%|103%”][et_pb_image src=”http:\/\/bcp-instruments.com\/wp-content\/uploads\/2021\/10\/chimie-1.png” title_text=”molecules” _builder_version=”4.19.0″ _module_preset=”default” width=”27%” max_width=”100%” min_height=”60px” height=”60px” max_height=”60px” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.18.0″ _module_preset=”default” text_font=”Nunito|500|||||||” text_text_color=”#4B6587″ text_line_height=”1.5em” custom_padding=”13px||20px||false|false” border_width_top=”3px” border_color_top=”#e5ae19″ border_color_bottom=”#e5ae19″ global_colors_info=”{}” border_color_bottom__hover=”#4B6587″ border_color_bottom__hover_enabled=”on|hover”]<\/p>\n
Polybrominated diphenyl ethers, PBDEs & Polybrominated biphenyls, PBBs<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_4,1_4,1_4,1_4″ use_custom_gutter=”on” gutter_width=”2″ make_equal=”on” _builder_version=”4.21.0″ _module_preset=”default” custom_padding=”0px|||||” locked=”off” global_colors_info=”{}”][et_pb_column type=”1_4″ _builder_version=”4.21.0″ _dynamic_attributes=”link_option_url” _module_preset=”default” background_color=”#FFFFFF” custom_padding=”10px|10px|10px|10px|true|true” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjgyNDgiLCJlbmFibGVfaHRtbCI6Im9mZiJ9fQ==@” box_shadow_style=”preset3″ global_colors_info=”{}” transform_styles__hover_enabled=”on|hover” transform_scale__hover_enabled=”on|hover” transform_translate__hover_enabled=”on|desktop” transform_rotate__hover_enabled=”on|desktop” transform_skew__hover_enabled=”on|desktop” transform_origin__hover_enabled=”on|desktop” transform_scale__hover=”103%|103%”][et_pb_image src=”https:\/\/bcp-instruments.com\/wp-content\/uploads\/2023\/10\/molecules.png” alt=”PCDDs-PCDFs” title_text=”molecules” _builder_version=”4.27.4″ _module_preset=”default” width=”27%” max_width=”100%” min_height=”60px” height=”60px” max_height=”60px” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.19.0″ _module_preset=”default” text_font=”Nunito|500|||||||” text_text_color=”#4B6587″ text_line_height=”1.5em” custom_padding=”13px||20px||false|false” border_width_top=”3px” border_color_top=”#e5ae19″ border_color_bottom=”#e5ae19″ global_colors_info=”{}” border_color_bottom__hover=”#4B6587″ border_color_bottom__hover_enabled=”on|hover”]<\/p>\n
Dioxins, Furans, PCDDs, PCDFs<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.21.0″ _dynamic_attributes=”link_option_url” _module_preset=”default” background_color=”#FFFFFF” custom_padding=”10px|10px|10px|10px|true|true” link_option_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjgyNTkiLCJlbmFibGVfaHRtbCI6Im9mZiJ9fQ==@” box_shadow_style=”preset3″ global_colors_info=”{}” transform_styles__hover_enabled=”on|hover” transform_scale__hover_enabled=”on|hover” transform_translate__hover_enabled=”on|desktop” transform_rotate__hover_enabled=”on|desktop” transform_skew__hover_enabled=”on|desktop” transform_origin__hover_enabled=”on|desktop” transform_scale__hover=”103%|103%”][et_pb_image src=”http:\/\/bcp-instruments.com\/wp-content\/uploads\/2021\/10\/chimie.png” title_text=”molecules” _builder_version=”4.16.0″ _module_preset=”default” width=”27%” max_width=”100%” min_height=”60px” height=”60px” max_height=”60px” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.18.0″ _module_preset=”default” text_font=”Nunito|500|||||||” text_text_color=”#4B6587″ text_line_height=”1.5em” custom_padding=”13px||20px||false|false” border_width_top=”3px” border_color_top=”#e5ae19″ border_color_bottom=”#e5ae19″ global_colors_info=”{}” border_color_bottom__hover=”#4B6587″ border_color_bottom__hover_enabled=”on|hover”]<\/p>\n
Organochlorine Pesticides, OCP<\/p>\n
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Certified reference materials<\/p>\n
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\t\t\t\t![\"\"](\"http:\/\/bcp-instruments.com\/wp-content\/uploads\/2021\/10\/chimie.png\" "\\"chemistry\\"")
<\/span>\n\t\t\t<\/div>\n\n
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Polychlorinated biphenyls,
PCBs<\/span><\/span><\/p>\n<\/span><\/p>\n> See more<\/span><\/span><\/p>\n<\/div><\/div>\n<\/p><\/div>\n","protected":false},"author":7,"featured_media":0,"parent":9640,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-9730","page","type-page","status-publish","hentry"],"yoast_head":"\nPCBs, polychlorinated biphenyls - BCP Instruments<\/title>\n<meta name=\"description\" content=\"PCBs, or polychlorinated biphenyls, are chlorinated aromatic compounds.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bcp-instruments.com\/en\/home\/wellington-analytical-standards\/polychlorinated-biphenyls-pcbs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PCBs, polychlorinated biphenyls\" \/>\n<meta property=\"og:description\" content=\"PCBs, or polychlorinated biphenyls, are chlorinated aromatic compounds.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bcp-instruments.com\/en\/home\/wellington-analytical-standards\/polychlorinated-biphenyls-pcbs\/\" \/>\n<meta property=\"og:site_name\" content=\"BCP Instruments\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-24T13:35:15+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/bcp-instruments.com\\\/en\\\/home\\\/wellington-analytical-standards\\\/polychlorinated-biphenyls-pcbs\\\/\",\"url\":\"https:\\\/\\\/bcp-instruments.com\\\/en\\\/home\\\/wellington-analytical-standards\\\/polychlorinated-biphenyls-pcbs\\\/\",\"name\":\"PCBs, polychlorinated biphenyls - 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