{"id":1160,"date":"2020-06-02T11:45:15","date_gmt":"2020-06-02T15:45:15","guid":{"rendered":"https:\/\/designinglight.com\/?p=1160"},"modified":"2020-06-02T11:46:46","modified_gmt":"2020-06-02T15:46:46","slug":"cie-position-statement-on-the-use-of-uv-c","status":"publish","type":"post","link":"https:\/\/designinglight.com\/?p=1160","title":{"rendered":"CIE Position Statement on the use of UV-C"},"content":{"rendered":"<p>As interest in using light disinfection continues to grow standard setting organizations and manufacturers are becoming more active in this area. \u00a0The International Commission on Illumination (CIE) has just released a <a href=\"http:\/\/cie.co.at\/publications\/cie-position-statement-use-ultraviolet-uv-radiation-manage-risk-covid-19-transmission\">position statement<\/a> on the use of ultraviolet radiation to manage the risk of COVID-19 transmission.<\/p>\n<p>Here are a few bullet points:<\/p>\n<ul>\n<li>While ultraviolet light ranges from 400 nm to 100 nm, the most effective wavelengths are at around 254 nm and this is generally what is meant by germicidal ultraviolet or GUV.<\/li>\n<li>UV-C has been successfully used for water disinfection and in air handling units for many years. \u00a0UV-C has also seen a resurgence for use in healthcare environments.<\/li>\n<li>Direct exposure to UV-C can cause photokeratitis (similar to snow blindness) and erythema (skin reddening similar to sunburn) so carefully shielded luminaires are required when used in occupied spaces.<\/li>\n<li>Consumers should be wary of products not approved by consumer safety organizations. \u00a0Such products could be hazardous to use or may not emit UV-C at all.<\/li>\n<\/ul>\n<p>Read the full position statement.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As interest in using light disinfection continues to grow standard setting organizations and manufacturers are becoming more active in this area. \u00a0The International Commission on Illumination (CIE) has just released a position statement on the use of ultraviolet radiation to manage the risk of COVID-19 transmission. Here are a few bullet points: While ultraviolet light &hellip; <a href=\"https:\/\/designinglight.com\/?p=1160\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">CIE Position Statement on the use of UV-C<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,17,10],"tags":[71],"class_list":["post-1160","post","type-post","status-publish","format-standard","hentry","category-health","category-light","category-luminaires","tag-uv-c"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p4gZSw-iI","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":968,"url":"https:\/\/designinglight.com\/?p=968","url_meta":{"origin":1160,"position":0},"title":"CIE Publishes Position Statement on Blue Light Hazard","author":"Jason Livingston","date":"May 15, 2019","format":false,"excerpt":"References the CIE position paper on blue light hazard.","rel":"","context":"In &quot;Health&quot;","block_context":{"text":"Health","link":"https:\/\/designinglight.com\/?cat=3"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4324,"url":"https:\/\/designinglight.com\/?p=4324","url_meta":{"origin":1160,"position":1},"title":"CIE Recommends Transition from CRI to Rf","author":"Jason Livingston","date":"January 21, 2025","format":false,"excerpt":"Earlier this month, CIE published CIE Position Statement on Color Quality Metrics, in which it recommends the lighting industry transition from the outdated and sometimes inaccurate General Color Rendering Index (CRI) to the General Color Fidelity Index (Rf ) defined in CIE 224:2017. \u00a0The position statement notes that problems with\u2026","rel":"","context":"In &quot;Color&quot;","block_context":{"text":"Color","link":"https:\/\/designinglight.com\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":142,"url":"https:\/\/designinglight.com\/?p=142","url_meta":{"origin":1160,"position":2},"title":"What&#8217;s Old Is New Again","author":"Jason Livingston","date":"May 9, 2014","format":false,"excerpt":"Earlier this week the New York Times had an interesting, although not very informative, article about two new lamp manufacturers and their technologies.\u00a0 The first is Finally, a Massachusetts based company that is using an old technology, induction, to generate light.\u00a0 Induction lamps are very similar to fluorescent lamps except\u2026","rel":"","context":"In &quot;Lamps&quot;","block_context":{"text":"Lamps","link":"https:\/\/designinglight.com\/?cat=13"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":930,"url":"https:\/\/designinglight.com\/?p=930","url_meta":{"origin":1160,"position":3},"title":"Fixing CRI, But Not Really","author":"Jason Livingston","date":"February 5, 2019","format":false,"excerpt":"A couple of weeks ago the\u00a0Global Lighting Association\u00a0(GLA) published\u00a0Application of CIE 13.3-1995 with Associated CRI-based Color Rendition Properties.\u00a0\u00a0It proposes TM-30 like metrics to supplement CRI\u00a0Ra.\u00a0\u00a0Specifically, it proposes a color gamut index, Ga, that is similar to TM-30\u2019s Rg and a set of chroma indices, Ci, similar to TM-30\u2019s\u00a0Rch,hj.\u00a0\u00a0At first glance\u2026","rel":"","context":"In &quot;Color&quot;","block_context":{"text":"Color","link":"https:\/\/designinglight.com\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":676,"url":"https:\/\/designinglight.com\/?p=676","url_meta":{"origin":1160,"position":4},"title":"How Bright Are Colored LEDs?","author":"Jason Livingston","date":"January 29, 2017","format":false,"excerpt":"Measuring and describing the brightness of colored LEDs is an increasingly important part of a lighting designer\u2019s practice. They are used more often, and in more types of projects, than ever before. Yet, we don\u2019t have an accurate method for understanding exactly how much light is being produced and how\u2026","rel":"","context":"In &quot;Color&quot;","block_context":{"text":"Color","link":"https:\/\/designinglight.com\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/designinglight.com\/wp-content\/uploads\/2017\/01\/VLambda.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/designinglight.com\/wp-content\/uploads\/2017\/01\/VLambda.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/designinglight.com\/wp-content\/uploads\/2017\/01\/VLambda.png?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":719,"url":"https:\/\/designinglight.com\/?p=719","url_meta":{"origin":1160,"position":5},"title":"CIE Adopts TM-30 (sort of)","author":"Jason Livingston","date":"May 3, 2017","format":false,"excerpt":"The CIE has issued a statement titled \"CIE 2017 Colour Fidelity Index for accurate scientific use\" in which they partially adopt the Rf fidelity metric of TM-30. \u00a0Here are some of the details. When the IES released TM-30-15 it seemed to be a wake up call for the CIE, who\u2026","rel":"","context":"In &quot;Color&quot;","block_context":{"text":"Color","link":"https:\/\/designinglight.com\/?cat=12"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/designinglight.com\/index.php?rest_route=\/wp\/v2\/posts\/1160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/designinglight.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/designinglight.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/designinglight.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/designinglight.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1160"}],"version-history":[{"count":2,"href":"https:\/\/designinglight.com\/index.php?rest_route=\/wp\/v2\/posts\/1160\/revisions"}],"predecessor-version":[{"id":1163,"href":"https:\/\/designinglight.com\/index.php?rest_route=\/wp\/v2\/posts\/1160\/revisions\/1163"}],"wp:attachment":[{"href":"https:\/\/designinglight.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/designinglight.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/designinglight.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}