The measurement of particulate matter (TSP, PM10, and PM2.5) emitted by pyrotechnic articles is described. For this purpose, for entertainment purposes category F2 (i. e. consumer fireworks according to European legislation) are examined exemplarily. aim was determine reliable emission factors (EF). Different types were used obtain a more representative database. Commonly analytical methods, li...

The paper examines the regulations governing circulation of pyrotechnic articles in Ukraine. content Technical Regulation Pyrotechnics, which came into force January 2022, is revealed. These determine classes articles, legal regime their free circulation, responsibilities economic entities and identification, labeling procedure for establishing conformity technical requirements safety articles....

Abstract The potential advantages of energetic boron esters in the application materials were analyzed. Based on synthesis feasibility analysis, 10 kinds tetrazolium designed. geometric structure, density, enthalpy formation and impact sensitivity calculated by using density functional theory. detonation parameters Explo5 program. results show that compounds is between 1.74 ~ 2.18g/cm3, velocit...

Repellents substances and devices cause pest species to avoid otherwise attractive or palatable materials. For birds, repellents can be visual, auditory, pyrotechnic, tactile, chemosensory, physiologic, or physical. Here, we consider chemical agents only. Few substances are registered with the U.S. Environmental Protection Agency (EPA), and thus legally available for use. This lack of available...