{"id":21442,"date":"2026-09-11T16:52:28","date_gmt":"2026-09-11T14:52:28","guid":{"rendered":"https:\/\/tera-environnement.com\/?post_type=faq&p=21442"},"modified":"2026-09-11T16:52:28","modified_gmt":"2026-09-11T14:52:28","slug":"which-indoor-air-parameters-are-covered-by-tera-environnements-cofrac-accreditation","status":"publish","type":"faq","link":"https:\/\/tera-environnement.com\/en\/faq\/which-indoor-air-parameters-are-covered-by-tera-environnements-cofrac-accreditation\/","title":{"rendered":"Which indoor-air parameters are covered by TERA Environnement\u2019s COFRAC accreditation?"},"content":{"rendered":"

For indoor air, TERA Environnement is COFRAC accredited for VOCs (benzene, toluene, ethylbenzene, xylenes and 1,2-DCE on Radiello code 145; benzene, toluene, naphthalene and total VOCs on GAS tubes; total VOCs on TTA tubes), aldehydes (formaldehyde, acetaldehyde, benzaldehyde, pentanal, propanal and hexanal on Radiello code 165 and D-S10L tubes), acid gases (NO2 on Radiello code 166, NH3 on Radiello code 168 and H2S on Radiello code 170), NO and NO2 on Ogawa samplers, and nitrosamines on Thermosorb\/N tubes. Accreditation scopes change over time; consult the COFRAC website for the latest information: https:\/\/tools.cofrac.fr\/en\/organismes\/fiche.php?entite_id=11082450.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-21442","faq","type-faq","status-publish","hentry"],"acf":[],"yoast_head":"\nWhich indoor-air parameters are covered by TERA Environnement\u2019s COFRAC accreditation? - TERA Environnement<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21442\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which indoor-air parameters are covered by TERA Environnement\u2019s COFRAC accreditation? - TERA Environnement\" \/>\n<meta property=\"og:description\" content=\"For indoor air, TERA Environnement is COFRAC accredited for VOCs (benzene, toluene, ethylbenzene, xylenes and 1,2-DCE on Radiello code 145; benzene, toluene, naphthalene and total VOCs on GAS tubes; total VOCs on TTA tubes), aldehydes (formaldehyde, acetaldehyde, benzaldehyde, pentanal, propanal and hexanal on Radiello code 165 and D-S10L tubes), acid gases (NO2 on Radiello code […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tera-environnement.com\/en\/?post_type=faq&p=21442\" \/>\n<meta property=\"og:site_name\" content=\"TERA Environnement\" \/>\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=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Which indoor-air parameters are covered by TERA Environnement\u2019s COFRAC accreditation? 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