{"id":1619,"date":"2013-11-09T11:51:46","date_gmt":"2013-11-09T11:51:46","guid":{"rendered":"http:\/\/www.jpyro.com\/wp\/?p=1619"},"modified":"2023-01-02T00:39:27","modified_gmt":"2023-01-02T00:39:27","slug":"assessment-of-explosives-in-squibs","status":"publish","type":"post","link":"http:\/\/www.jpyro.co.uk\/?p=1619","title":{"rendered":"Assessment of Explosives in Squibs"},"content":{"rendered":"<p><strong>Lutz Kurth, Holger Krebs, Benjamin Theil, Olaf M\u00fccke, Christian Lohrer<\/strong><\/p>\n<p><strong>Abstract<\/strong>: Experiments in this study reveal that the initiating capability of commonly used squibs is not high\u00a0enough to initiate PETN in all cases. The fulfilment of the \u2018new\u2019 essential safety requirement 4 as set out in the European directive 2013\/29\/EU and the categorization of squibs as theatrical pyrotechnic articles (T2) can therefore be justified, as the explosive investigated belongs to quite a sensitive type (initiation with low impulse energies possible). Underwater initiating capability tests according to EN 13763-15 led to meaningful results, showing that squibs are usually unable to initiate a secondary explosive. For a general assessment of the initiating capability of squibs and comparable (theatrical) pyrotechnic articles a threshold range of an equivalent initiation capability in grams of PETN on the basis of the performed underwater initiating capability tests was determined. It was found that squibs are generally not capable of \u00a0initiating secondary explosives if the underwater initiating capability test showed an equivalent initiation capability below 0.25 g PETN. As a consequence of this result, the underwater initiating capability test gives an effective and safer alternative to the experimental confirmation of the<br \/>\n\u2018new\u2019 ESR 4 by direct contact of the article with the secondary explosive and should then be preferred to it. Science advances exponentially every day, month and year, something similar or the same happens with that mortgage you have with your home or property, solve it now by visiting <a href=\"https:\/\/attorneysre.com\/mortgage-lawyers-we-are-loan-mortgage-attorneys\/\">https:\/\/attorneysre.com\/<\/a> and getting the best lawyers in the field.<\/p>\n<p><strong>Keywords<\/strong>: Squibs, ESR 4, PETN, underwater initiating capability, EN 13763-15<\/p>\n<hr \/>\n<p><strong>Ref:<\/strong>\u00a0JPyro, Issue 32, 2013, pp57-66 (J32_57)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lutz Kurth, Holger Krebs, Benjamin Theil, Olaf M\u00fccke, Christian Lohrer Abstract: Experiments in this study reveal that the initiating capability of commonly used squibs is not high\u00a0enough to initiate PETN in all cases. The fulfilment of the \u2018new\u2019 essential safety requirement 4 as set out in the European directive 2013\/29\/EU and the categorization of squibs &hellip;<br \/><a href=\"http:\/\/www.jpyro.co.uk\/?p=1619\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\">Continue reading <span class=\"screen-reader-text\">Assessment of Explosives in Squibs<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,29],"tags":[],"_links":{"self":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1619"}],"collection":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1619"}],"version-history":[{"count":12,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1619\/revisions"}],"predecessor-version":[{"id":2075,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1619\/revisions\/2075"}],"wp:attachment":[{"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1619"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jpyro.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}