Ernst-Christian Koch ABSTRACT: The obstacles to producing red colored pyrotechnic flames with lithium compounds are discussed. The principle emitter of red light in such flames is atomic lithium. Hydrogen and halogens in the flame gases are expected to have a substantial effect on the concentration of atomic lithium. The development of effective Libased red color …
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Category:JPyro – Articles
The main category – things that are published in the Journal
Hypotheses Regarding “Star-Shell-Detonations”
K. L. and B. J. Kosanke ABSTRACT: Fireworks star shells occasionally explode upon firing while they are still inside the mortar. Most often, this occurs with approximately the same level of violence as when the shell explodes after having left the mortar, and often even relatively weak mortars survive the experience intact. While unnerving to …
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A Ground Test Rocket Thrust Measurement System
Mary Fran Desrochers, Gary W. Olsen, and M. K. Hudson ABSTRACT: A strain gauge thrust measurement system is described for rocket motor ground testing. The unit uses sigmoid beams to hold the rocket motor in place, with the strain gauges mounted on these beams. The theory and usage of strain gauges is briefly discussed, along …
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Applying Explosives Testing Techniques To Obtain Insight into the Explosion (Or Is It Detonation?). Phenomenon of Piles of Fireworks
E. Contestabile ABSTRACT: There are times when the legal system requires so-called expert witnesses. Whether it is with regard to terrorist or criminal activities or accidents, the expert is often confronted with explaining the dreaded term “detonation”. The attempt to explain such a catastrophic event often brings about the use of similes. In this paper, …
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A Brief Introduction to Noise and Data Filtering
L. Weinman ABSTRACT: This brief article examines some aspects of noise and the effects of filters applied to data. Keywords: signals, data acquisition, noise, data filter, digital filter, pyrotechnic, experimental design Ref: JPyro, Issue 14, 2001, pp40-44 (J14_40)
Review of: Protection against Substances Hazardous to Health – Confederation of British Industry
Protection against Substances Hazardous to Health – Confederation of British Industry Review by Monona Rossol This Guide was produced by a joint working party of the Explosives Industry Group of the Confederation of British Industry, including the Ministry of Defense and the Health and Safety Executive. Its purpose is to provide advice to those who …
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Our Present Knowledge of the Chemistry of Black Powder
Ian von Maltitz ABSTRACT: Black Powder has been around for centuries and has had a profound influence on the history of the world. Over this time, a considerable amount of knowledge has been gained that not only sheds light on the chemistry of Black Powder but also on other pyrotechnic reactions. This knowledge cannot be …
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Thermal Techniques Used in the Hazard Evaluation of Pyrotechnics
P. D. Lightfoot, R. C. Fouchard, A.-M. Turcotte, Q. S. M. Kwok and D. E. G. Jones ABSTRACT: A hazard assessment provides important information for determination of safe conditions for the manufacture, storage and transportation of pyrotechnics. Sensitivity to thermal stimuli is an important aspect of an overall hazard assessment. This paper describes a number …
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Review of: Head and Eye Protection: A Guide for Those Who Manufacture, Test, or Use Explosives – Confederation of British Industry
Head and Eye Protection: A Guide for Those Who Manufacture, Test, or Use Explosives Confederation of British Industry Review by Linda Pierpont This Guide is the third in a series of four on the subject of personal protection for the explosives industry. Although this study encompasses the needs of other industries, the main focus is …
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Hazards Associated with the Storage of Fireworks
Roy Merrifield ABSTRACT: Large quantities of a whole range of materials, including fireworks, are moved around the world in steel ISO containers. In recent years in the UK, manufacturers and retailers have used such containers to store fireworks. It has been long recognised that confinement can increase the hazard of energetic materials such as pyrotechnics …
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