{"id":1745,"date":"2025-07-16T10:51:05","date_gmt":"2025-07-16T03:51:05","guid":{"rendered":"https:\/\/vietmarinecontrol.com.vn\/?p=1745"},"modified":"2025-07-16T10:51:05","modified_gmt":"2025-07-16T03:51:05","slug":"ultrasonic-watertightness-test-for-cargo-holds","status":"publish","type":"post","link":"https:\/\/vietmarinecontrol.com.vn\/en\/ultrasonic-watertightness-test-for-cargo-holds\/","title":{"rendered":"ULTRASONIC WATERTIGHTNESS TEST FOR CARGO HOLDS"},"content":{"rendered":"<p data-start=\"271\" data-end=\"348\"><strong data-start=\"271\" data-end=\"348\">VM CONTROL \u2013 Technology-Driven Precision, Legally Recognized Certificates<\/strong><\/p>\n<p data-start=\"350\" data-end=\"608\">Watertightness of cargo holds is a critical safety factor in marine transportation. Any water ingress\u2014whether from seawater or rain\u2014can lead to damage, corrosion, or loss of cargo, especially when transporting dry goods such as steel, cement, or machinery.<\/p>\n<p data-start=\"610\" data-end=\"882\">The <strong data-start=\"614\" data-end=\"649\">Ultrasonic Tightness Test (UTT)<\/strong> is a modern, internationally recognized method used to assess the integrity of cargo hold hatch covers. It has largely replaced traditional hose testing, which is time-consuming, labor-intensive, and can contaminate the cargo space.<\/p>\n<h3 data-start=\"889\" data-end=\"939\">\ud83c\udfaf <strong data-start=\"896\" data-end=\"939\">Purpose of Ultrasonic Tightness Testing<\/strong><\/h3>\n<ul data-start=\"941\" data-end=\"1325\">\n<li data-start=\"941\" data-end=\"1059\">\n<p data-start=\"943\" data-end=\"1059\">Assess the watertight integrity of <strong data-start=\"978\" data-end=\"1057\">hatch covers, coaming, rubber gaskets, hinges, cleats, and compression bars<\/strong><\/p>\n<\/li>\n<li data-start=\"1060\" data-end=\"1137\">\n<p data-start=\"1062\" data-end=\"1137\">Accurately detect <strong data-start=\"1080\" data-end=\"1106\">leakage points or gaps<\/strong> that may cause water ingress<\/p>\n<\/li>\n<li data-start=\"1138\" data-end=\"1250\">\n<p data-start=\"1140\" data-end=\"1250\">Provide a legal basis for <strong data-start=\"1166\" data-end=\"1213\">owners, charterers, insurance, or P&amp;I Clubs<\/strong> to evaluate the vessel&#8217;s readiness<\/p>\n<\/li>\n<li data-start=\"1251\" data-end=\"1325\">\n<p data-start=\"1253\" data-end=\"1325\">Minimize risks of <strong data-start=\"1271\" data-end=\"1325\">cargo claims, downtime, and operational disruption<\/strong><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1332\" data-end=\"1384\">\ud83e\uddea <strong data-start=\"1339\" data-end=\"1384\">Inspection Procedure by Ultrasonic Method<\/strong><\/h3>\n<p data-start=\"1386\" data-end=\"1407\"><strong data-start=\"1386\" data-end=\"1405\">1. Preparation:<\/strong><\/p>\n<ul data-start=\"1408\" data-end=\"1569\">\n<li data-start=\"1408\" data-end=\"1483\">\n<p data-start=\"1410\" data-end=\"1483\">Vessel must be stationary; cargo hold clean and free of excessive noise<\/p>\n<\/li>\n<li data-start=\"1484\" data-end=\"1569\">\n<p data-start=\"1486\" data-end=\"1569\">Use certified ultrasonic devices such as <strong data-start=\"1527\" data-end=\"1567\">SDT, Cygnus Hatch Sure, or Ultraseal<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1571\" data-end=\"1605\"><strong data-start=\"1571\" data-end=\"1603\">2. Placement of Transmitter:<\/strong><\/p>\n<ul data-start=\"1606\" data-end=\"1757\">\n<li data-start=\"1606\" data-end=\"1671\">\n<p data-start=\"1608\" data-end=\"1671\">Ultrasonic transmitter is placed inside the closed cargo hold<\/p>\n<\/li>\n<li data-start=\"1672\" data-end=\"1757\">\n<p data-start=\"1674\" data-end=\"1757\">The device emits sound waves that will escape through any open gaps or faulty seals<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1759\" data-end=\"1791\"><strong data-start=\"1759\" data-end=\"1789\">3. Scanning with Receiver:<\/strong><\/p>\n<ul data-start=\"1792\" data-end=\"1971\">\n<li data-start=\"1792\" data-end=\"1881\">\n<p data-start=\"1794\" data-end=\"1881\">Inspector walks along hatch coaming, joints, corners, rubber seals, and locking areas<\/p>\n<\/li>\n<li data-start=\"1882\" data-end=\"1971\">\n<p data-start=\"1884\" data-end=\"1971\">Receiver detects ultrasonic signals in decibels (dB), identifying precise leak points<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1973\" data-end=\"2007\"><strong data-start=\"1973\" data-end=\"2005\">4. Evaluation and Reporting:<\/strong><\/p>\n<ul data-start=\"2008\" data-end=\"2223\">\n<li data-start=\"2008\" data-end=\"2063\">\n<p data-start=\"2010\" data-end=\"2063\">All leak points are marked, photographed, and noted<\/p>\n<\/li>\n<li data-start=\"2064\" data-end=\"2140\">\n<p data-start=\"2066\" data-end=\"2140\">Results are classified: <strong data-start=\"2090\" data-end=\"2105\">Pass \/ Fail<\/strong> based on international standards<\/p>\n<\/li>\n<li data-start=\"2141\" data-end=\"2223\">\n<p data-start=\"2143\" data-end=\"2223\">A formal <strong data-start=\"2152\" data-end=\"2199\">Ultrasonic Tightness Inspection Certificate<\/strong> is issued for legal use<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2230\" data-end=\"2262\">\u2705 <strong data-start=\"2236\" data-end=\"2262\">Why Choose VM CONTROL?<\/strong><\/h3>\n<ul data-start=\"2264\" data-end=\"2649\">\n<li data-start=\"2264\" data-end=\"2361\">\n<p data-start=\"2266\" data-end=\"2361\"><strong data-start=\"2266\" data-end=\"2290\">Certified inspectors<\/strong> with in-depth ultrasonic testing expertise and real-world experience<\/p>\n<\/li>\n<li data-start=\"2362\" data-end=\"2437\">\n<p data-start=\"2364\" data-end=\"2437\">Modern testing equipment with regular calibration for reliable accuracy<\/p>\n<\/li>\n<li data-start=\"2438\" data-end=\"2530\">\n<p data-start=\"2440\" data-end=\"2530\"><strong data-start=\"2440\" data-end=\"2473\">Clean, non-destructive method<\/strong> \u2013 no need for water spraying or dismantling components<\/p>\n<\/li>\n<li data-start=\"2531\" data-end=\"2649\">\n<p data-start=\"2533\" data-end=\"2649\">Issued certificates are <strong data-start=\"2557\" data-end=\"2591\">bilingual (English\u2013Vietnamese)<\/strong> and accepted by <strong data-start=\"2608\" data-end=\"2649\">shipowners, charterers, and P&amp;I Clubs<\/strong><\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2656\" data-end=\"2724\">\ud83d\udcde <strong data-start=\"2663\" data-end=\"2724\">Contact \u2013 Ultrasonic Cargo Hold Watertightness Inspection<\/strong><\/h3>\n<p data-start=\"2726\" data-end=\"3067\"><strong data-start=\"2726\" data-end=\"2782\">VIET MARINE CONTROL JOINT STOCK COMPANY \u2013 VM CONTROL<\/strong><br data-start=\"2782\" data-end=\"2785\" \/>\ud83d\udccd Office: 1831\/10\/9 Huynh Tan Phat Street, Quarter 2, Nha Be Commune, Ho Chi Minh City, Vietnam<br data-start=\"2881\" data-end=\"2884\" \/>\ud83d\udcde On-site Hotline: +84 981600440 \/ +84 918114742<br data-start=\"2933\" data-end=\"2936\" \/>\ud83d\udce7 Email: <a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"2946\" data-end=\"2984\">phongcskhgiamdinhhanghaiviet@gmail.com<\/a><br data-start=\"2984\" data-end=\"2987\" \/>\ud83c\udf10 Website: <a class=\"\" href=\"https:\/\/www.vietmarinecontrol.com.vn\" target=\"_new\" rel=\"noopener\" data-start=\"2999\" data-end=\"3067\">www.vietmarinecontrol.com.vn<\/a><\/p>\n<blockquote data-start=\"3074\" data-end=\"3224\">\n<p data-start=\"3076\" data-end=\"3224\"><strong data-start=\"3076\" data-end=\"3152\">VM CONTROL \u2013 Accuracy down to every seam \u2013 Safety throughout the voyage.<\/strong><br data-start=\"3152\" data-end=\"3155\" \/>Every leak detected today is one less risk for your cargo tomorrow.<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>The Ultrasonic Tightness Test (UTT) is a modern, internationally recognized method used to assess the integrity of cargo hold hatch covers. It has largely replaced traditional hose testing, which is time-consuming, labor-intensive, and can contaminate the cargo space.<\/p>\n","protected":false},"author":2,"featured_media":1746,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22],"tags":[],"class_list":["post-1745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/posts\/1745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/comments?post=1745"}],"version-history":[{"count":1,"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/posts\/1745\/revisions"}],"predecessor-version":[{"id":1748,"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/posts\/1745\/revisions\/1748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/media\/1746"}],"wp:attachment":[{"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/media?parent=1745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/categories?post=1745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vietmarinecontrol.com.vn\/en\/wp-json\/wp\/v2\/tags?post=1745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}