{"id":11376794,"date":"2022-09-23T00:00:00","date_gmt":"2022-09-22T22:00:00","guid":{"rendered":"https:\/\/alertdiver.eu\/uncategorized\/lets-talk-about-gas-planning\/"},"modified":"2023-08-07T16:39:02","modified_gmt":"2023-08-07T14:39:02","slug":"lets-talk-about-gas-planning","status":"publish","type":"post","link":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/","title":{"rendered":"Let&#8217;s talk about\u2026 Gas Planning"},"content":{"rendered":"<p style=\"text-align: justify;\" data-renderer-start-pos=\"4\">Gas planning is an aspect of diving that many of us are confused about. Depending on your training agency and how long ago it was that you took your Open Water class, you might hazily remember an example calculation that involves a reserve, a safety stop reserve, keeping one third of the remaining cylinder pressure in reserve, and turning the dive at the implausibly precise number of 157 bars. If that sounds impractical to you, then you\u2019re not alone. Once you book a trip, you\u2019re going to have a hard time finding someone who actually dives that way.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"560\">Instead, conventional wisdom holds that the proper gas reserve is 50 bar, a limit common enough to have inspired the naming of numerous scuba-themed drinking establishments around the world. In such drinking establishments, you might hear the occasional tall tale of people finding themselves low on air at 35 meters and saving the day, as if surfacing with a near-empty cylinder was something to be proud of.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"971\">Given the discrepancy between what\u2019s written in the books and what is talked about over beers, confusion is only natural. In this article, we\u2019ll try to untangle things a little. We\u2019ll introduce a general principle that can be applied to a variety of diving scenarios. It is based on a concept called RMV (respiratory minute volume), SAC rate (surface air consumption), or SCR (surface consumption rate). With slight variations depending on who you talk to, the three mean roughly the same. If you\u2019re not familiar with this concept or could use a refresher, please see <a href=\"https:\/\/alertdiver.eu\/en_US\/articles\/gas-planning-101-how-to-calculate-your-rmv\" target=\"_blank\" rel=\"noopener\"><span data-id=\"cd2cf73a-8b82-41ff-9e68-2a80e99f6c5a\" data-mark-annotation-type=\"inlineComment\" data-mark-type=\"annotation\" data-renderer-mark=\"true\">How To Calculate Your RMV<\/span><\/a>.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"1569\">Disclaimer: This article isn\u2019t meant to be the be-all and end-all of gas planning. The examples below are provided only to illustrate concepts and don\u2019t necessarily apply directly to dives that you do. When diving a new site, be sure to obtain the advice of people who are familiar with it, and when in doubt, always err on the side of conservatism.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"1920\">Enough of a preamble, let\u2019s have at it.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"1920\"><img decoding=\"async\" class=\"fr-dib fr-draggable\" style=\"width: auto;\" src=\"\/wp-content\/uploads\/imgimport\/1117\/portofino-1500.jpg\" \/><\/p>\n<h3 style=\"text-align: justify;\" data-renderer-start-pos=\"1920\">The Main Idea<\/h3>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"1979\">When a diver experiences a low-on-gas or out-of-gas (OOG) emergency at depth, the protocol is to turn to a teammate, share gas, and end the dive. For this to be a viable solution, the teammate needs to have enough gas for two. Since equipment failures can happen to anyone at any time, the basic principle of gas planning is:<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"2307\">\u2028\u2028<strong data-renderer-mark=\"true\">At\u00a0<\/strong><em data-renderer-mark=\"true\"><strong data-renderer-mark=\"true\">any<\/strong><\/em><strong data-renderer-mark=\"true\">\u00a0point during a dive,\u00a0<\/strong><em data-renderer-mark=\"true\"><strong data-renderer-mark=\"true\">every<\/strong><\/em><strong data-renderer-mark=\"true\">\u00a0diver must have enough gas to cover a bailout strategy for themselves and a buddy who has an OOG emergency.<\/strong><\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"2452\">Sounds reasonable? If we\u2019re agreed, then the next question would be, how do we determine this amount? For illustration, we\u2019ll look at two examples. Each time, the basic method is to<\/p>\n<ul>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"2637\">think through the dive in the form of a narrative<\/li>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"2690\">identify the worst-case scenario (the worst point in the dive for an OOG emergency to occur)<\/li>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"2786\">develop a bailout strategy for this scenario<\/li>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"2834\">break the bailout strategy down into steps and allocate a gas budget to each step<\/li>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"2919\">add these amounts up to arrive at a total<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"2964\">This total is known as Rock Bottom, Minimum Gas, or Turn Pressure, again depending on who you talk to. They all mean the same: the tank pressure at which you need to start your ascent, at the very latest.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"3170\"><strong><span style=\"color: #2969b0;\">Example 1<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"3181\">Let\u2019s say we\u2019re doing a dive to 30 meters from a boat, square profile with descent and ascent in blue water or along a line, no deco obligations. The worst-case scenario is an OOG emergency at 30 meters. A possible bailout strategy could be very simple: Establish gas sharing, ascend to 5 meters at the planned rate, do a safety stop, end the dive.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"3531\">Assuming an RMV of 15 l\/min, the amount of gas needed would be:<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"3531\"><img decoding=\"async\" class=\"fr-dib fr-draggable\" style=\"width: auto;\" src=\"\/wp-content\/uploads\/imgimport\/1117\/example1-en.png\" \/><\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"3988\">Our total is 552 L, or about 50 bar in a standard AL80 cylinder (11.3 liters). That\u2019s an estimate of how much we\u2019re actually going to breathe, <em data-renderer-mark=\"true\">as an absolute minimum<\/em>.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"4156\">So do we turn the dive at 50 bar, the magic number handed down through the ages? Not so fast. There are additional considerations, such as:<\/p>\n<ul>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"4299\">We don\u2019t want to surface with 0 bar, ever.<\/li>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"4345\">If 15 l\/min is our usual RMV, chances are it will be higher under stress. For reference, the maximum RMV a human has been shown to be capable of is between 120 and 170 l\/min, depending on the human.<\/li>\n<li style=\"text-align: justify;\" data-renderer-start-pos=\"4547\">Can we rely on ascending at the planned rate? If we plan for 9 m\/min but ascend at 6 m\/min instead in reality, then the second step in our calculation will cost 50% more gas than estimated.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"4740\">Depending on how we answer these questions, adding a safety margin of somewhere between 50 and 100 percent doesn\u2019t seem too conservative, does it? We might therefore decide that our reserve is 80 bar. Or 100. Once any diver on the team reaches this pressure, we need to end the dive. <em data-renderer-mark=\"true\"><strong data-renderer-mark=\"true\">If we stay longer, then our bailout strategy will no longer be covered.\u00a0<\/strong><\/em>We don\u2019t want that to happen.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"4740\"><img decoding=\"async\" class=\"fr-dib fr-draggable\" style=\"width: auto;\" src=\"\/wp-content\/uploads\/imgimport\/1117\/gascheck-1500.jpg\" \/><\/p>\n<h2 data-renderer-start-pos=\"5130\">Interlude on attitude<\/h2>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"5153\">Of course, if all goes well, which should be the vast majority of cases, you\u2019ll complete the ascent and safety stop using only 30 bar or even less. Now I hear people say: \u201cBut I paid for a full tank of Nitrox! I don\u2019t want to end the dive with 70 bar!\u201d \u2013 to which my reply is: Yes you do. It\u2019s like finishing a skydive with your backup parachute still in its pack. It\u2019s a good thing. With one added wrinkle: Unlike a backup parachute, those 70 bars aren\u2019t yours. They\u2019re a shared resource. If you end a 30-meter dive as described above with only 20 bars left in your tank, that\u2019s a dive where you would\u2019ve been no use whatsoever to a teammate with an OOG problem.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"5819\">By extension, you never, ever want to complain about a buddy turning the dive when you still have a lot of gas in your tank. That buddy is conserving the portion of shared resources they\u2019re carrying, putting responsibility above ego. Don\u2019t make them regret their decision.<\/p>\n<p data-renderer-start-pos=\"6093\"><strong><span style=\"color: #2969b0;\">Example 2<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"6104\">This is a shore dive. Our descent and ascent point is close to the beach, at a depth of 5 meters. Our target is a little shipwreck that\u2019s maybe a 10-minute swim down a sloping reef, away from our point of descent. The wreck sits at a depth of 25 meters, and the average depth for the swim is 15 meters. We expect a mild longshore current, lateral to our direction of swimming. How do we plan for something like this?<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"6522\">Again, we need to think through the dive and look at our potential bailout strategies. The worst-case scenario is an OOG situation at the farthest point of the dive, at 25 meters of depth and a 10 minute-swim from our planned ascent point. Now let\u2019s think about our bailout strategy: Can we afford to surface directly from the wreck? In that case, our reserve calculation would be similar to the example above. Maybe we can, if all else fails, but I\u2019d rather not if I can help it. Currents are usually stronger up top than near the bottom; a surface swim back to our point of exit might be difficult.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"7124\">A better bailout strategy would be to swim back underwater while sharing gas. Let\u2019s do the math:<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"7124\"><img decoding=\"async\" class=\"fr-dib fr-draggable\" style=\"width: auto;\" src=\"\/wp-content\/uploads\/imgimport\/1117\/example2-en.png\" \/><\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"7563\">This would be just over 90 bar in an AL80, <em data-renderer-mark=\"true\">as an absolute minimum for how much we are definitely going to breathe<\/em>. Our actual reserve must be larger than that. And again, there are a number of considerations.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"7773\">First of all, the contingency of an emergency ascent must be covered. We need to do both calculations and apply the greater amount. Secondly, unless we regularly drill out of gas situations, we\u2019re probably not as efficient swimming while gas sharing as we would be otherwise. This is particularly true if we\u2019re using a recreational regulator configuration with a relatively short octopus hose \u2013 they\u2019re okay for direct ascents but not very convenient for long swims.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"8241\">You can probably tell where this is going: If we add a safety margin of 50% to our 90+ bar, our reserve becomes 140 bar. If we apply a safety margin of 100%, then our reserve becomes 180 bar, and the conclusion is that we can\u2019t rely on this bailout strategy when diving on a single tank. In an OOG situation at the farthest point of the dive, we might be stuck with having to ascend directly from where we are and drift at the mercy of the current.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"8691\">For the sake of the example, let\u2019s say we decide to turn the dive at 140 bar. If all goes as it should, swimming back takes only 40 bar per diver, and we\u2019re back in the shallows with 100 bar left in our tank. Do we need to end the dive, \u201dwasting\u201d all that good Nitrox? Fortunately not. Unlike the first example, where we ascend in blue water with nothing to see, this time we\u2019re still on the reef. Once back in shallow water and close to shore, our reserve requirements change. We can spend some more time, relax and take pictures, and surface when we hit our 50.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"8691\"><img decoding=\"async\" class=\"fr-dib fr-draggable\" style=\"width: auto;\" src=\"\/wp-content\/uploads\/imgimport\/1117\/portofino2-1500.jpg\" \/><\/p>\n<h2 data-renderer-start-pos=\"9259\">Final thoughts<\/h2>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"9275\">Looking at these gas planning methods, it should become clear how important it is to plan and brief every dive as a team. You want everybody to follow the narrative, think through the dive from the beginning to the end, and understand the worst-case scenario and the bailout strategy.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"9561\">Be aware that your plan is only as good as your diving.\u2028 If you\u2019ve never practiced a gas-sharing ascent from anywhere deeper than 10 meters, you might want to factor that in when deciding your safety margin for 30-meter dives.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"9789\">Debriefings are another thing. After every dive, it&#8217;s important to verify that you\u2019ve finished on the planned amount of gas. If not, there should be an explanation why. If nothing untoward happened during the dive but you finish with too little gas, you need a more conservative dive plan. If you end up finishing with more than you planned for on a regular basis, then maybe you can add a little extra bottom time next time. Without a debriefing, you won\u2019t know if either is the case.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"10276\">Finally, especially when looking at the second example, you might realize that a single tank isn\u2019t a lot of gas when you\u2019re at the far end of a dive and fecal matter intersects with the ventilation equipment. For anything deeper than 25 meters or involving long swims away from shore, you might want to look at learning how to use double tanks or carry an AL40 as a redundant gas supply. You don\u2019t need to breathe all of it. You don\u2019t even want to. Like that backup parachute, you just want to know it\u2019s there.<\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"10276\">\n<hr \/>\n<p data-renderer-start-pos=\"19056\">\n<p data-renderer-start-pos=\"19056\"><strong data-renderer-mark=\"true\"><span style=\"font-size: 18px;\">About the author<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\" data-renderer-start-pos=\"19074\"><a href=\"http:\/\/timblmk.com\/\" target=\"_blank\" rel=\"noopener\">Tim Bl\u00f6meke<\/a>\u00a0teaches technical and recreational diving in Taiwan and the Philippines. He is also a freelance writer and translator, as well as a member of the editorial team of Alert Diver. For questions, comments, and inquiries, you can contact him via his\u00a0<a href=\"http:\/\/timblmk.com\/\" target=\"_blank\" rel=\"noopener\">blog page<\/a>\u00a0or on\u00a0<a href=\"https:\/\/www.instagram.com\/timblmk\/\" target=\"_blank\" rel=\"noopener\">Instagram<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gas planning is an aspect of diving that many of us are confused about. Depending on your training agency and how long ago it was&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11376795,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[261],"tags":[431],"authors":[263],"class_list":["post-11376794","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","tag-safety","authors-tim-blomeke"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Let&#039;s talk about\u2026 Gas Planning - Alert Diver Magazine | DAN Europe<\/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:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Let&#039;s talk about\u2026 Gas Planning - Alert Diver Magazine | DAN Europe\" \/>\n<meta property=\"og:description\" content=\"Gas planning is an aspect of diving that many of us are confused about. Depending on your training agency and how long ago it was...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/\" \/>\n<meta property=\"og:site_name\" content=\"Alert Diver Magazine | DAN Europe\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-22T22:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-07T14:39:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1120\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"microfilla\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"microfilla\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/\"},\"author\":{\"name\":\"microfilla\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#\/schema\/person\/9ba7cb3f05522d75bf215ab2cf40b01b\"},\"headline\":\"Let&#8217;s talk about\u2026 Gas Planning\",\"datePublished\":\"2022-09-22T22:00:00+00:00\",\"dateModified\":\"2023-08-07T14:39:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/\"},\"wordCount\":1880,\"publisher\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#organization\"},\"image\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg\",\"keywords\":[\"Safety\"],\"articleSection\":[\"Articles\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/\",\"url\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/\",\"name\":\"Let's talk about\u2026 Gas Planning - Alert Diver Magazine | DAN Europe\",\"isPartOf\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg\",\"datePublished\":\"2022-09-22T22:00:00+00:00\",\"dateModified\":\"2023-08-07T14:39:02+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage\",\"url\":\"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg\",\"contentUrl\":\"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg\",\"width\":2560,\"height\":1120},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/alertdiver.eu\/en_US\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Let&#8217;s talk about\u2026 Gas Planning\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#website\",\"url\":\"https:\/\/alertdiver.eu\/en_US\/\",\"name\":\"Alert Diver Magazine | DAN Europe\",\"description\":\"Access, discover and share the latest diving safety content from DAN Europe.\",\"publisher\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/alertdiver.eu\/en_US\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#organization\",\"name\":\"Alert Diver Magazine | DAN Europe\",\"url\":\"https:\/\/alertdiver.eu\/en_US\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/02\/alertdiver-logo.png\",\"contentUrl\":\"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/02\/alertdiver-logo.png\",\"width\":800,\"height\":135,\"caption\":\"Alert Diver Magazine | DAN Europe\"},\"image\":{\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#\/schema\/person\/9ba7cb3f05522d75bf215ab2cf40b01b\",\"name\":\"microfilla\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/alertdiver.eu\/en_US\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/09f39449f14df8c3ad651888221bb907?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/09f39449f14df8c3ad651888221bb907?s=96&d=mm&r=g\",\"caption\":\"microfilla\"},\"sameAs\":[\"https:\/\/microfilla.com\"],\"url\":\"https:\/\/alertdiver.eu\/en_US\/author\/microfilla\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Let's talk about\u2026 Gas Planning - Alert Diver Magazine | DAN Europe","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/","og_locale":"en_US","og_type":"article","og_title":"Let's talk about\u2026 Gas Planning - Alert Diver Magazine | DAN Europe","og_description":"Gas planning is an aspect of diving that many of us are confused about. Depending on your training agency and how long ago it was...","og_url":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/","og_site_name":"Alert Diver Magazine | DAN Europe","article_published_time":"2022-09-22T22:00:00+00:00","article_modified_time":"2023-08-07T14:39:02+00:00","og_image":[{"width":2560,"height":1120,"url":"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg","type":"image\/jpeg"}],"author":"microfilla","twitter_card":"summary_large_image","twitter_misc":{"Written by":"microfilla","Est. reading time":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#article","isPartOf":{"@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/"},"author":{"name":"microfilla","@id":"https:\/\/alertdiver.eu\/en_US\/#\/schema\/person\/9ba7cb3f05522d75bf215ab2cf40b01b"},"headline":"Let&#8217;s talk about\u2026 Gas Planning","datePublished":"2022-09-22T22:00:00+00:00","dateModified":"2023-08-07T14:39:02+00:00","mainEntityOfPage":{"@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/"},"wordCount":1880,"publisher":{"@id":"https:\/\/alertdiver.eu\/en_US\/#organization"},"image":{"@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage"},"thumbnailUrl":"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg","keywords":["Safety"],"articleSection":["Articles"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/","url":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/","name":"Let's talk about\u2026 Gas Planning - Alert Diver Magazine | DAN Europe","isPartOf":{"@id":"https:\/\/alertdiver.eu\/en_US\/#website"},"primaryImageOfPage":{"@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage"},"image":{"@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage"},"thumbnailUrl":"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg","datePublished":"2022-09-22T22:00:00+00:00","dateModified":"2023-08-07T14:39:02+00:00","breadcrumb":{"@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#primaryimage","url":"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg","contentUrl":"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/06\/gas-planning-bannerweb-2560x1120-1.jpg","width":2560,"height":1120},{"@type":"BreadcrumbList","@id":"https:\/\/alertdiver.eu\/en_US\/articles\/lets-talk-about-gas-planning\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/alertdiver.eu\/en_US\/"},{"@type":"ListItem","position":2,"name":"Let&#8217;s talk about\u2026 Gas Planning"}]},{"@type":"WebSite","@id":"https:\/\/alertdiver.eu\/en_US\/#website","url":"https:\/\/alertdiver.eu\/en_US\/","name":"Alert Diver Magazine | DAN Europe","description":"Access, discover and share the latest diving safety content from DAN Europe.","publisher":{"@id":"https:\/\/alertdiver.eu\/en_US\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/alertdiver.eu\/en_US\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/alertdiver.eu\/en_US\/#organization","name":"Alert Diver Magazine | DAN Europe","url":"https:\/\/alertdiver.eu\/en_US\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/alertdiver.eu\/en_US\/#\/schema\/logo\/image\/","url":"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/02\/alertdiver-logo.png","contentUrl":"https:\/\/alertdiver.eu\/wp-content\/uploads\/2023\/02\/alertdiver-logo.png","width":800,"height":135,"caption":"Alert Diver Magazine | DAN Europe"},"image":{"@id":"https:\/\/alertdiver.eu\/en_US\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/alertdiver.eu\/en_US\/#\/schema\/person\/9ba7cb3f05522d75bf215ab2cf40b01b","name":"microfilla","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/alertdiver.eu\/en_US\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/09f39449f14df8c3ad651888221bb907?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/09f39449f14df8c3ad651888221bb907?s=96&d=mm&r=g","caption":"microfilla"},"sameAs":["https:\/\/microfilla.com"],"url":"https:\/\/alertdiver.eu\/en_US\/author\/microfilla\/"}]}},"_links":{"self":[{"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/posts\/11376794","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/comments?post=11376794"}],"version-history":[{"count":2,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/posts\/11376794\/revisions"}],"predecessor-version":[{"id":11387918,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/posts\/11376794\/revisions\/11387918"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/media\/11376795"}],"wp:attachment":[{"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/media?parent=11376794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/categories?post=11376794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/tags?post=11376794"},{"taxonomy":"authors","embeddable":true,"href":"https:\/\/alertdiver.eu\/en_US\/wp-json\/wp\/v2\/authors?post=11376794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}