{"id":963,"date":"2014-07-22T16:45:43","date_gmt":"2014-07-22T21:45:43","guid":{"rendered":"https:\/\/www.wisconsin.edu\/ehs\/?page_id=963"},"modified":"2025-02-13T09:20:05","modified_gmt":"2025-02-13T15:20:05","slug":"phs","status":"publish","type":"page","link":"https:\/\/www.wisconsin.edu\/ehs\/hazmat\/phs\/","title":{"rendered":"Particularly Hazardous Substances"},"content":{"rendered":"<h4><a href=\"https:\/\/www.wisconsin.edu\/ehs\/wp-content\/uploads\/sites\/39\/2017\/07\/GHS-pictogram_combo-health-haz.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-4496\" src=\"https:\/\/www.wisconsin.edu\/ehs\/wp-content\/uploads\/sites\/39\/2017\/07\/GHS-pictogram_combo-health-haz-171x300.jpg\" alt=\"GHS symbols for health hazard and toxic substances\" width=\"170\" height=\"298\" srcset=\"https:\/\/www.wisconsin.edu\/ehs\/wp-content\/uploads\/sites\/39\/2017\/07\/GHS-pictogram_combo-health-haz-171x300.jpg 171w, https:\/\/www.wisconsin.edu\/ehs\/wp-content\/uploads\/sites\/39\/2017\/07\/GHS-pictogram_combo-health-haz-585x1024.jpg 585w, https:\/\/www.wisconsin.edu\/ehs\/wp-content\/uploads\/sites\/39\/2017\/07\/GHS-pictogram_combo-health-haz.jpg 608w\" sizes=\"auto, (max-width: 170px) 100vw, 170px\" \/><\/a>General regulatory information<\/h4>\n<p>The Wisconsin Department Safety and Professional Services (DSPS) enforces occupational safety regulations on University of Wisconsin System campuses. The Wisconsin DSPS adopted the US Occupational Safety and Health Administration&#8217;s (OSHA) standard for<a href=\"https:\/\/www.osha.gov\/SLTC\/laboratories\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\">\u00a0Occupational Exposures to Hazardous Chemicals in Laboratories<\/a>.<\/p>\n<p>One of the requirements of the standard is that a laboratory&#8217;s Chemical Hygiene Plan must include provisions for additional employee protection for work with\u00a0<em>particularly hazardous substances<\/em>. The definition of particularly hazardous substances includes three categories: <strong>select carcinogens<\/strong>, <strong>reproductive toxins<\/strong>\u00a0and <strong>substances that have a high degree of acute toxicity<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h4 class=\"cfct-mod-title \">Particularly Hazardous Substance Categories<\/h4>\n<div class=\"bs-accordion \">\n        <div id=\"441hz\" class=\"panel-group\">\n         <div class=\"panel panel-default \" id=\"panel_select-carcinogens\">\n    <div class=\"panel-heading\" id=\"heading_select-carcinogens\">\n        <h4 class=\"panel-title\"><button href=\"#select-carcinogens\" data-toggle=\"collapse\" class=\"collapsed panel-link\" aria-expanded=\"false\" aria-controls=\"select-carcinogens\">Select Carcinogens<\/button><\/h4>    <\/div>\n    <div id=\"select-carcinogens\" class=\"panel-collapse collapse\"  role=\"tabpanel\" aria-labelledby=\"heading_select-carcinogens\" role=\"region\">\n        <div class=\"panel-body copy\">            \n            The following are defined as\u00a0<em>select carcinogens<\/em>\u00a0by OSHA.<\/p>\n<p>OSHA listed carcinogens:<\/p>\n<ul>\n<li>Asbestos<\/li>\n<li>4-Nitrobiphenyl<\/li>\n<li>alpha-Naphthylamine<\/li>\n<li>Methyl chloromethyl ether<\/li>\n<li>3,3&#8242;-Dichlorobenzidine (and its salts)<\/li>\n<li>bis-Chloromethyl ether<\/li>\n<li>beta-Naphthylamine<\/li>\n<li>Benzidine<\/li>\n<li>4-Aminodiphenyl<\/li>\n<li>Ethyleneimine<\/li>\n<li>beta-Propiolactone<\/li>\n<li>2-Acetylaminofluorene<\/li>\n<li>4-Dimethylaminoazobenzene<\/li>\n<li>N-Nitrosodimethylamine<\/li>\n<li>Vinyl chloride<\/li>\n<li>Inorganic arsenic<\/li>\n<li>Cadmium<\/li>\n<li>Benzene<\/li>\n<li>Coke oven emissions<\/li>\n<li>1,2-dibromo-3-chloropropane<\/li>\n<li>Acrylonitrile<\/li>\n<li>Ethylene oxide<\/li>\n<li>Formaldehyde<\/li>\n<li>Methylenedianiline<\/li>\n<li>1,3-Butadiene<\/li>\n<li>Methylene chloride<\/li>\n<\/ul>\n<p align=\"center\">or<\/p>\n<p>Any substance listed under the category,\u00a0<a href=\"https:\/\/ntp.niehs.nih.gov\/pubhealth\/roc\/index-1.html\" target=\"_blank\" rel=\"noopener noreferrer\">&#8220;known to be carcinogens,&#8221; in the annual Report on Carcinogens (RoC) published by the National Toxicology Program (NTP)<\/a>\u00a0(latest edition);<\/p>\n<p align=\"center\">or<\/p>\n<p>Any substance listed under\u00a0<a href=\"https:\/\/monographs.iarc.who.int\/agents-classified-by-the-iarc\/\" target=\"_blank\" rel=\"noopener noreferrer\">Group 1 (&#8220;carcinogenic to humans&#8221;) by the International Agency for Research on Cancer Monographs (IARC)<\/a>\u00a0(latest edition);<\/p>\n<p align=\"center\">or<\/p>\n<p>Any substance listed in either\u00a0<a href=\"https:\/\/monographs.iarc.who.int\/agents-classified-by-the-iarc\/\" target=\"_blank\" rel=\"noopener noreferrer\">Group 2A or 2B by IARC<\/a>\u00a0or under the category,\u00a0<a href=\"https:\/\/ntp.niehs.nih.gov\/pubhealth\/roc\/index-1.html\" target=\"_blank\" rel=\"noopener noreferrer\">&#8220;reasonably anticipated to be carcinogens&#8221; by NTP<\/a>, and causes statistically significant tumor incidence in experimental animals in accordance with any of the following criteria:<\/p>\n<ul>\n<li>After inhalation exposure of 6-7 hours per day, 5 days per week, for a significant portion of a lifetime to dosages of less than 10 mg\/m3;<\/li>\n<li>After repeated skin application of less than 300 (mg\/kg of body weight) per week; or<\/li>\n<li>After oral dosages of less than 50 mg\/kg of body weight per day.<\/li>\n<\/ul>\n<p>        <\/div>\n    <\/div>\n<\/div> <div class=\"panel panel-default \" id=\"panel_reproductive-toxins\">\n    <div class=\"panel-heading\" id=\"heading_reproductive-toxins\">\n        <h4 class=\"panel-title\"><button href=\"#reproductive-toxins\" data-toggle=\"collapse\" class=\"collapsed panel-link\" aria-expanded=\"false\" aria-controls=\"reproductive-toxins\">Reproductive Toxins<\/button><\/h4>    <\/div>\n    <div id=\"reproductive-toxins\" class=\"panel-collapse collapse\"  role=\"tabpanel\" aria-labelledby=\"heading_reproductive-toxins\" role=\"region\">\n        <div class=\"panel-body copy\">            \n            <\/p>\n<h6><\/h6>\n<p>Unfortunately, no recognized list of known human reproductive toxins exists. OSHA specifically regulates only four agents based on their reproductive toxicity: dibromochloropropane (DBCP), lead, ionizing radiation and ethylene oxide. Handle all chemicals with caution. If you are working with an unfamiliar chemical, check the Safety Data Sheet (SDS) or <a href=\"https:\/\/www.nlm.nih.gov\/pubs\/techbull\/nd19\/nd19_toxnet_new_locations.html\" target=\"_blank\" rel=\"noopener noreferrer\">TOXNET<\/a> to determine if the chemical is considered a reproductive toxin.<\/p>\n<p>        <\/div>\n    <\/div>\n<\/div> <div class=\"panel panel-default \" id=\"panel_substances-with-a-high-degree-of-acute-toxicity\">\n    <div class=\"panel-heading\" id=\"heading_substances-with-a-high-degree-of-acute-toxicity\">\n        <h4 class=\"panel-title\"><button href=\"#substances-with-a-high-degree-of-acute-toxicity\" data-toggle=\"collapse\" class=\"collapsed panel-link\" aria-expanded=\"false\" aria-controls=\"substances-with-a-high-degree-of-acute-toxicity\">Substances with a High Degree of Acute Toxicity<\/button><\/h4>    <\/div>\n    <div id=\"substances-with-a-high-degree-of-acute-toxicity\" class=\"panel-collapse collapse\"  role=\"tabpanel\" aria-labelledby=\"heading_substances-with-a-high-degree-of-acute-toxicity\" role=\"region\">\n        <div class=\"panel-body copy\">            \n            <\/p>\n<h6><\/h6>\n<p>OSHA does not provide very practical guidance on substances with a high degree of acute toxicity. The University of Wisconsin-Madison Environment, Health &amp; Safety Department provides its laboratories with the\u00a0<a href=\"https:\/\/ehs.wiscweb.wisc.edu\/wp-content\/uploads\/sites\/25\/2017\/01\/LabSafetyGuide-AppendixD.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">following guidance<\/a>:<\/p>\n<p>The OSHA Laboratory Standard does not list or define substances with a high degree of acute toxicity. The rule\u2019s preamble (55 FR 3320) describes substances with a high degree of acute toxicity as those substances that are \u201cfatal or cause damage to target organs as a result of a single exposure or exposures of short duration.\u201c Hydrogen cyanide, hydrogen sulfide and nitrogen dioxide are given as examples.<\/p>\n<p>Remember, a chemical may be toxic by one of several routes of entry. To be classified as having a high degree of acute toxicity, the chemical must fall within any of the following categories:<\/p>\n<ul>\n<li>A chemical with a median lethal dose (LD50) of 50 mg or less per kg of body weight when administered orally to certain test populations.<\/li>\n<li>A chemical with an LD50 of 200 mg or less per kg of body weight when administered by continuous contact for 24 hours (or less if death occurs within 24 hours) to certain test populations (e.g., to the bare skin of albino rabbits weighing between 2 kg and 3 kg each).<\/li>\n<li>A chemical with a median lethal concentration (LC50) in air of 200 parts per million (ppm) by volume or less of gas or vapor, or 2 mg per liter or less of mist, fume, or dust, when administered to certain test populations (e.g., albino rats weighing between 200 and 300 gm each) by continuous inhalation for one hour, provided such concentration and\/or condition are likely to be encountered by humans when the chemical is used in any reasonably foreseeable manner.<\/li>\n<\/ul>\n<p>To determine if you use a substance with a high degree of acute toxicity that may require additional employee protection under the\u00a0<a href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.1450\" target=\"_blank\" rel=\"noopener noreferrer\">OSHA Laboratory Standard<\/a>, consult the SDS, the <a href=\"https:\/\/www.cdc.gov\/niosh\/docs\/97-119\/\" target=\"_blank\" rel=\"noopener noreferrer\">Registry of Toxic Effects of Chemical Substances (RTECS)<\/a> or your campus safety department. <a href=\"https:\/\/www.nlm.nih.gov\/pubs\/techbull\/nd19\/nd19_toxnet_new_locations.html\" target=\"_blank\" rel=\"noopener noreferrer\">TOXNET<\/a> also provides useful information.<\/p>\n<p>Some examples of chemicals with a high degree of acute toxicity include:<\/p>\n<ul>\n<li>Acrolein<\/li>\n<li>Arsine<\/li>\n<li>Chlorine<\/li>\n<li>Diazomethane<\/li>\n<li>Diborane (gas)<\/li>\n<li>Hydrogen cyanide<\/li>\n<li>Hydrogen fluoride<\/li>\n<li>Methyl fluorosulfonate<\/li>\n<li>Nickel carbonyl<\/li>\n<li>Nitrogen dioxide<\/li>\n<li>Osmium tetroxide<\/li>\n<li>Ozone<\/li>\n<li>Phosgene<\/li>\n<li>Sodium azide<\/li>\n<li>Sodium cyanide<\/li>\n<\/ul>\n<p>        <\/div>\n    <\/div>\n<\/div>     \n    <\/div>\n<\/div>\n\n\n<p>&nbsp;<\/p>\n<h4>Provisions for additional employee protection<\/h4>\n<p>The<strong><a href=\"https:\/\/www.osha.gov\/sites\/default\/files\/publications\/OSHAfactsheet-laboratory-safety-chemical-hygiene-plan.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"> Chemical Hygiene Plan<\/a> <\/strong>shall include the following elements and shall indicate specific measures that the employer will take to ensure laboratory employee protection:<\/p>\n<p><em>1910.1450(e)(3)(viii) Provisions for additional employee protection for work with particularly hazardous substances. These include &#8220;select carcinogens,&#8221; reproductive toxins and substances which have a high degree of acute toxicity. Specific considerations shall be given to the following provisions which shall be included where appropriate:<\/em><\/p>\n<ul>\n<li><em>(e)(3)(viii)(A) Establishment of a designated area [see note];<\/em><\/li>\n<li><em>(e)(3)(viii)(B) Use of containment devices such as fume hoods or glove boxes;<\/em><\/li>\n<li><em>(e)(3)(viii)(C) Procedures for safe removal of contaminated waste; and<\/em><\/li>\n<li><em>(e)(3)(viii)(D) Decontamination procedures.<\/em><\/li>\n<\/ul>\n<p>[Note: <em>Designated area<\/em> means an area which may be used for work with select carcinogens, reproductive toxins or substances which have a high degree of acute toxicity. A designated area may be the entire laboratory, an area of a laboratory or a device such as a laboratory hood.]<\/p>\n<p>&nbsp;<\/p>\n<h4>additional resources<\/h4>\n<ul>\n<li><a href=\"https:\/\/www.osha.gov\/sites\/default\/files\/publications\/OSHAfactsheet-laboratory-safety-osha-lab-standard.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">OSHA Laboratory Standard<\/a><\/li>\n<li><a href=\"https:\/\/www.osha.gov\/sites\/default\/files\/publications\/OSHA3404laboratory-safety-guidance.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">OSHA Laboratory Safety Guidance<\/a><\/li>\n<li><a href=\"https:\/\/www.osha.gov\/sites\/default\/files\/publications\/OSHAfactsheet-laboratory-safety-chemical-hygiene-plan.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">OSHA Fact Sheet: Laboratory Safety Chemical Hygiene Plan (CHP)<\/a><\/li>\n<li><a href=\"https:\/\/www.osha.gov\/laws-regs\/standardinterpretations\/1990-07-30\" target=\"_blank\" rel=\"noopener noreferrer\">OSHA Letters of Interpretation for 1910.1450: Substances with High Degree of Acute Toxicity<\/a><\/li>\n<li><a href=\"https:\/\/www.cdc.gov\/niosh\/docs\/97-119\/\" target=\"_blank\" rel=\"noopener noreferrer\">Registry of Toxic Effects of Chemical Substances (RTECS)<\/a><\/li>\n<li><a href=\"https:\/\/ehs.wiscweb.wisc.edu\/wp-content\/uploads\/sites\/25\/2017\/01\/LabSafetyGuide-AppendixD.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">UW-Madison Laboratory Safety Guide:\u00a0Particularly Hazardous Substances<\/a><\/li>\n<li><a href=\"https:\/\/ehs.princeton.edu\/laboratory-research\/chemical-safety\/particularly-hazardous-substances\" target=\"_blank\" rel=\"noopener noreferrer\">Princeton University: Particularly Hazardous Substances<\/a><\/li>\n<li><a href=\"https:\/\/ehs.cornell.edu\/research-safety\/chemical-safety\/laboratory-safety-manual\/chapter-9-particularly-hazardous\" target=\"_blank\" rel=\"noopener noreferrer\">Cornell University: Particularly Hazardous Substances<\/a><\/li>\n<\/ul>\n<p style=\"padding-left: 30px;\">\n","protected":false},"excerpt":{"rendered":"<p>General regulatory information The Wisconsin Department Safety and Professional Services (DSPS) enforces occupational safety regulations on University of Wisconsin System campuses. The Wisconsin DSPS adopted the US Occupational Safety and [&#8230;]<\/p>\n","protected":false},"author":1181,"featured_media":0,"parent":333,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/39.1426.php","meta":{"footnotes":""},"class_list":["post-963","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/pages\/963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/users\/1181"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/comments?post=963"}],"version-history":[{"count":1,"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/pages\/963\/revisions"}],"predecessor-version":[{"id":6985,"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/pages\/963\/revisions\/6985"}],"up":[{"embeddable":true,"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/pages\/333"}],"wp:attachment":[{"href":"https:\/\/www.wisconsin.edu\/ehs\/wp-json\/wp\/v2\/media?parent=963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}