{"id":859134,"date":"2021-11-15T07:00:59","date_gmt":"2021-11-15T12:00:59","guid":{"rendered":"https:\/\/www.thecompliancecenter.com\/ca\/?p=859134"},"modified":"2025-09-05T01:39:10","modified_gmt":"2025-09-05T05:39:10","slug":"when-are-absorbents-required-by-air","status":"publish","type":"post","link":"https:\/\/www.thecompliancecenter.com\/ca\/help-center\/articles\/when-are-absorbents-required-by-air\/","title":{"rendered":"When are Absorbents Required by Air?"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-875235 size-full\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2021\/11\/ICC_AbsorbentsRequiredByAir_Blog_10-2021.png\" alt=\"\" width=\"1001\" height=\"301\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Depending on the regulation, there are very specific requirements on what type of outer and inner packaging you must use when shipping dangerous goods by ground, sea, and air. Often, the various regulations will call for combination packaging consisting of 4G fiberboard boxes and the use of inner containers such as glass, metal, or plastic. There may be additional requirements that you are unaware of when shipping certain types of liquids by air, such as absorbent material. While this is not always a requirement, there are certain circumstances when absorbents must be used. Below are different types of scenarios where absorbents would be required when shipping liquids by air.<\/span><\/p>\n<h2><b>49 CFR\u00a0<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">In section 173.27(e) of the 49 CFR, it specifically mentions when shipping PG I liquids by air for specific hazard classes, absorbent material is required per below:\u00a0<\/span><\/p>\n<p><strong>173.27<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">(e) <\/span><i><span style=\"font-weight: 400;\">Absorbent materials.<\/span><\/i><span style=\"font-weight: 400;\"> Except as otherwise provided in this subchapter, <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=94561b89adcbc580292061e15fd9751d&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">Packing Group<\/a><\/span><span style=\"font-weight: 400;\"> I <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=23c49c047f0a71240d64efb5f42c3d4d&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">liquid<\/a><\/span> <span style=\"font-weight: 400;\"><a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=639d6a96a12081927752d7c7f6fa0f2f&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">hazardous materials<\/a><\/span><span style=\"font-weight: 400;\"> of <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=2213de1fb4189ade29594c53d0205cfc&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">Classes<\/a><\/span><span style=\"font-weight: 400;\"> 3, 4, or 8, or <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=2f81e462a47411105565e9cc45e9bbfe&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">Divisions<\/a><\/span><span style=\"font-weight: 400;\"> 5.1 or 6.1 that are <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=450c29e3c1fa3c159432ae002ffb2af6&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">packaged<\/a><\/span><span style=\"font-weight: 400;\">\u00a0in <\/span><a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=e5d12ba1aa2dd0eb64907cdb7ac2ccd1&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">combination packagings<\/a><span style=\"font-weight: 400;\"> and offered for air transport in glass, earthenware, plastic, or metal <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=2447eda04e8c680de3518d7d49901449&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">inner packagings<\/a><\/span><span style=\"font-weight: 400;\"> must be packed using absorbent material as follows:<br \/>\n<\/span><\/p>\n<ol>\n<li><span style=\"font-weight: 400;\">Inner packagings<\/span><span style=\"font-weight: 400;\"> must be packed in a rigid and leakproof <\/span><a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=a2379fa27eb4f7f1db338ff0d2d04dda&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">receptacle<\/a><span style=\"font-weight: 400;\"> or <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=be215c236af769dddee66a118545b98e&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:B:173.27\" target=\"_blank\" rel=\"noopener noreferrer\">intermediate packaging<\/a><\/span><span style=\"font-weight: 400;\">\u00a0containing sufficient absorbent material to absorb the entire contents of the <\/span><span style=\"font-weight: 400;\">inner packaging<\/span><span style=\"font-weight: 400;\"> before packing the <\/span><span style=\"font-weight: 400;\">inner packaging<\/span><span style=\"font-weight: 400;\"> in its outer <\/span><span style=\"font-weight: 400;\">package<\/span><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li>Absorbent material must not react dangerously with the liquid (see <a href=\"https:\/\/www.law.cornell.edu\/cfr\/text\/49\/173.24\">\u00a7\u00a7 173.24<\/a> and 173.24a.).<\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">For the most part, this means, when shipping PG I liquids in the hazard classes mentioned above by air, you must include absorbents when using UN combination packaging. As a general rule of thumb, the absorbents used should be able to absorb the amount of liquid you are shipping in your inner containers.<br \/>\n<\/span><\/p>\n<h2><b>IATA<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">As a side note, when shipping by air internationally, TDG defers to the international regulations per part 12, which would be ICAO. Regarding shipping internationally by air, to find out if absorbents are required, you must utilize The IATA Packing Instructions. Depending on what UN number of your product is, when you visit the 4.2 list of dangerous goods in IATA and look under the appropriate packaging instructions, you will find the requirements for packaging. For example, UN 1993 Flammable Liquid, n.o.s PGI sends us to Packing instruction 351. There you will find under additional packaging requirements the following: \u201cinner packagings must be packed with sufficient absorbent material to absorb the entire contents of the inner packagings and placed in a rigid leakproof receptacle before packing in outer packagings.\u201d You will find this will be the case with quite a bit of PG I liquids in the different packing instructions in IATA. In addition to this, a secondary means of closure or a leak-proof liner is also a requirement <\/span><span style=\"font-weight: 400;\">5.0.2.7.2 when shipping liquids.<\/span><\/p>\n<h2><b>Excepted Quantities<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">IATA 2.6.5.1 (b) says when shipping Excepted Quantities that are liquids, the intermediate and outer packaging must contain sufficient absorbent material to absorb the entire contents in the inner packaging. Similarly the 49CFR 173.4A (3) states: For <\/span><span style=\"font-weight: 400;\">liquid<\/span><span style=\"font-weight: 400;\"> hazardous materials, the intermediate or <a href=\"https:\/\/www.law.cornell.edu\/definitions\/index.php?width=840&amp;height=800&amp;iframe=true&amp;def_id=ee8bdc15c846ef064637ccca794257b6&amp;term_occur=999&amp;term_src=Title:49:Subtitle:B:Chapter:I:Subchapter:C:Part:173:Subpart:A:173.4a\" target=\"_blank\" rel=\"noopener noreferrer\">outer packaging<\/a><\/span><span style=\"font-weight: 400;\">\u00a0must contain sufficient absorbent material that will absorb the entire contents of the <\/span><span style=\"font-weight: 400;\">inner packaging<\/span><span style=\"font-weight: 400;\"> and will not react dangerously with the material or reduce the integrity or function of the <\/span><span style=\"font-weight: 400;\">packaging<\/span><span style=\"font-weight: 400;\"> materials. See more about shipping in Excepted Quantities in my <a href=\"https:\/\/www.thecompliancecenter.com\/ca\/what-are-excepted-quantities\/\" target=\"_blank\" rel=\"noopener noreferrer\">previous blog<\/a><\/span><span style=\"font-weight: 400;\">.<\/span><b>\u00a0<\/b><\/p>\n<h2><b>If The Closing Instructions Require It, You Must Use It.\u00a0<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">When you purchase any UN packaging, it should come with a set of closing instructions that tells you exactly how to prepare the package as well as what inner components are required; this could also include absorbents. No matter what mode of transport it is, if the closing instructions list a particular type of absorbent that must be used, that is a requirement whether you are shipping liquids or solids. For example, if the UN package was tested with vermiculite, let\u2019s say, then vermiculite must be used when shipping that package by all modes of transport, including air. Here at ICC, we offer a wide variety of absorbent and combination packaging that contain absorbents that can be used when shipping liquids by air and all other modes of transport. <a href=\"https:\/\/www.thecompliancecenter.com\/ca\/contact-us\/\" target=\"_blank\" rel=\"noopener noreferrer\">Contact us<\/a> <\/span><span style=\"font-weight: 400;\">for more information.<\/span><\/p>\n<p><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/newsletter-signup\/\"><span style=\"font-weight: 400;\">Stay up to date and sign up for our newsletter!<\/span><\/a><\/p>\n<p><em><strong>We have all the products, services and training you need to ensure your staff is properly trained and informed.<\/strong><\/em><\/p>\n<table style=\"width: 100%;\">\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product\/lb-usl350n\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-874843\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2021\/10\/lbusl350n_hi-150x150.gif\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product\/lb-usl350n\/\">Excepted Quantity Label, 4\u2033 x 4\u2033, Gloss Paper, 500\/Roll<\/a><\/td>\n<td><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/iata\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-874416\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2021\/08\/ICC_Publications_IATA-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product-category\/publications\/iata\/\">IATA Publications<\/a><\/td>\n<td><a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product\/ab-verm4\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-374136\" src=\"https:\/\/www.thecompliancecenter.com\/wp-content\/uploads\/2020\/02\/AB-VERM4-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><br \/>\n<a href=\"https:\/\/www.thecompliancecenter.com\/ca\/product\/ab-verm4\/\">Vermiculate, Grade A4 \u2013 4 cu ft<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Depending on the regulation, there are very specific requirements on what type of outer and inner packaging you must use&#8230;<\/p>\n","protected":false},"author":12562,"featured_media":859135,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[2402,2413,2494,2661,3047,4000,4008,4037,5069,5070,5073,5076,5085,5087],"tags":[2362,2364,2366,2368,2407,2429,2443,2455,2496,2574,2612],"class_list":["post-859134","post","type-post","status-publish","format-standard","has-post-thumbnail","category-safety-2","category-tdg-regulation-updates","category-iata-and-icao","category-49-cfr-regulation-updates","category-packaging-updates","category-air-transport-popular-topic","category-ground-road-and-rail-transport","category-compliance-training","category-ground-transportation","category-air-transportation","category-dot-49-cfr","category-iata","category-un-packaging","category-limited-quantities","tag-dangerous-goods","tag-hazmat","tag-tdg","tag-49-cfr","tag-dot","tag-regulations","tag-safety","tag-iata","tag-shipping","tag-hazardous-materials","tag-un-packaging"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>When are Absorbents Required by Air? | ICC Compliance Center<\/title>\n<meta name=\"description\" content=\"We explain when absorbents are required by air. For more articles, visit our Help Center on our website.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"\/ca\/wp-json\/wp\/v2\/posts\/859134\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"When are Absorbents Required by Air? | ICC Compliance Center\" \/>\n<meta property=\"og:description\" content=\"We explain when absorbents are required by air. For more articles, visit our Help Center on our website.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thecompliancecenter.com\/ca\/help-center\/articles\/when-are-absorbents-required-by-air\/\" \/>\n<meta property=\"og:site_name\" content=\"ICC Compliance Center Inc - Canada\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/compliancecenter\" \/>\n<meta property=\"article:published_time\" content=\"2021-11-15T12:00:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-05T05:39:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thecompliancecenter.com\/ca\/wp-content\/uploads\/sites\/4\/2021\/11\/ICC_AbsorbentsRequiredByAir_Blog_10-2021.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1001\" \/>\n\t<meta property=\"og:image:height\" content=\"301\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Michael Zendano\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ICC_Compliance\" \/>\n<meta name=\"twitter:site\" content=\"@ICC_Compliance\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michael Zendano\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/\"},\"author\":{\"name\":\"Michael Zendano\",\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/#\\\/schema\\\/person\\\/fbaf8eeceeff484cb9b3135373609bae\"},\"headline\":\"When are Absorbents Required by Air?\",\"datePublished\":\"2021-11-15T12:00:59+00:00\",\"dateModified\":\"2025-09-05T05:39:10+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/\"},\"wordCount\":740,\"publisher\":{\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2021\\\/11\\\/ICC_AbsorbentsRequiredByAir_Blog_10-2021.png\",\"keywords\":[\"dangerous goods\",\"hazmat\",\"TDG\",\"49 CFR\",\"DOT\",\"Regulations\",\"safety\",\"IATA\",\"shipping\",\"hazardous materials\",\"UN packaging\"],\"articleSection\":[\"Safety\",\"Transportation of Dangerous Goods\",\"IATA and ICAO\",\"49 CFR\",\"UN Packaging\",\"Air Transport\",\"Ground (road and rail) Transport\",\"Compliance &amp; Training\",\"Ground Transportation\",\"Air Transportation\",\"DOT 49 CFR\",\"IATA\",\"UN Packaging\",\"Limited Quantities\"],\"inLanguage\":\"en-CA\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/\",\"url\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/\",\"name\":\"When are Absorbents Required by Air? | ICC Compliance Center\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/help-center\\\/articles\\\/when-are-absorbents-required-by-air\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.thecompliancecenter.com\\\/ca\\\/wp-content\\\/uploads\\\/sites\\\/4\\\/2021\\\/11\\\/ICC_AbsorbentsRequiredByAir_Blog_10-2021.png\",\"datePublished\":\"2021-11-15T12:00:59+00:00\",\"dateModified\":\"2025-09-05T05:39:10+00:00\",\"description\":\"We explain when absorbents are required by air. 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