Glossary

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Millisecond (MS) SeriesDelay detonator series with relatively short (commonly 25MS) delays between adjacent numbers. MS Detonators are designed for in-hole use to initiate a primer and are generally of #12 / #8* strength which is a base charge of about 1 gram total. | ||
Millisecond ConnectorA device incorporating a detonator delay arrangement used with detonating cord. | ||
Millisecond Connector (MSC)Signal tube device used to provide a delay in a detonating cord trunkline. Capable of firing in two directions. | ||
Minimum PrimerThe minimum primer is the explosives mass of a primer required to reliably initiate the product in question. The minimum primer is related to sensitivity, the more sensitive an explosives the smaller the minimum primer. Minimum primer may be specified in terms of detonator strength typically #12, #8, #6 or in terms of the mass of explosives (TNT or Pentolite) required for reliable detonation. For example it could be stated for a certain bulk explosive in a 102mm diameter hole the minimum primer required is 150 grams of Pentolite. | |
MisfireA charge or part of a charge which has failed to explode or ignite. | |
Mobile Mixing UnitA mobile unit (usually a vehicle) used for the manufacture of explosives.
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MoundA barricade intended to intercept horizontal and low angle debris from an explosion. | |
Multi meterA multimeter is an electrical test instrument design to measure resistance, voltage and low levels of current (milliamps) in an electrical circuit. Note: Standard multi meters can supply sufficent voltage to fire electric detonators and must not be used to test circuits containing detonators.
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MultimeterA multimeter or a multitester, also known as a VOM (volt-ohm-milliammeter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter can measure voltage, current, and resistance. Analog multimeters use a microammeter with a moving pointer to display readings. Multimeters should never be used to test the electrical properties of explosive circuits due to the potential for accidental initiation.
See also Megger tester | ||
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National Criminal History CheckA criminal history check conducted on an applicant through the Police Service. This check covers all states and territories. | ||


