Gap Test (perforating) : A test of the sensitivity of the perforating charge to firing from a detonating cord. May be used to spot changes in charge explosive or differences in loading
George E. King Engineering, 5000 Oilfield Terms: A Glossary of Petroleum Engineering Terms, Abbreviations and Acronyms, US 2010. http://gekengineering.com/Downloads/Free_Downloads /Glossary_of_Petroleum_Engineering_Terms_25_August _2010.pdf, (Oil - Amer) {593}