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Formed in 1976, the Design Institute for Emergency Relief Systems (DIERS) became a users group in 1985. It is now a consortium of 250 companies that are concerned in development of methods for the design of emergency relief systems to handle runaway reactions. Of particular interest to DIERS are the prediction of two-phase flow venting and the applicability of various sizing methods for two-phase vapor-liquid flashing flow, viscous flow, etc. 

EDUG is the European DIERS Users' Group and the word DIERS stands for The Design Institute for Emergency Relief Systems. In other words, EDUG is a group of (mainly) Europeans who work on emergency relief system design using technology developed by DIERS. Members also carry out research in this field and are often involved in developing guidance and standards

The main goals of the International Group of Experts on the Explosion Risks of Unstable Substances (IGUS) are harmonization of the methods used for identification and quantitative assessment of the explosion risks of unstable substances, rating of thermal stability, reactivity and flammability of unstable and reactive substances. IGUS members devote considerable time to examining the different test methods to identify and improve upon the best methods that discriminate materials with explosive, flammable and oxidizing properties. IGUS consists of two working groups:
- Energetic and Oxidising Substances (EOS), which is focused on test methods, classification and safety aspects related to organic peroxides, self-reactive substances and other energetic substances, fertilisers, ammonium nitrate and oxidisers; process hazards, particularly in relation to manufacturing; incidents involving energetic substances.
- Explosives, Propellants and Pyrotechnics (EPP) which covers the area of explosive properties, general test methods and thermodynamic ratings, phenomenology of explosions, safety and regulatory aspects related to explosives, pyrotechnics and propellants.

SciVerse offers unprecedented access to a constantly expanding universe of content and solutions resulting in more discovery with less searching. Integrating ScienceDirect, Scopus, SciTopics and targeted Web content, with community developed applications SciVerse is a groundbreaking platform that provides our data, your way.

SETARAM Instrumentation (Caluire, France) is a leading manufacturer and supplier of high-performance thermal analyzers, calorimeters, gas sorption and high pressure mass spectroscopy instruments and offers complete and dedicated solutions for different applications such as Pharmaceuticals & Life Science, Advanced Materials, Energy, Process Safety, et

ChemiSens is specialized in the field of reaction calorimetry where analytical precision is essential.. ChemiSens reaction calorimeters are designed with all considerations to be a precision tool for analyzing Process Chemistry and assessing Reaction Hazards. Calorimeter systems are based on the state of the art most sophisticated measuring principles. They combine all the facilities that are required for process development with the versatility of handy laboratory reactors.
Thermal Hazard Technology (THT) is a world leader in the design, manufacture and supply of specialised calorimeters, for process development, process optimisation and safety. Today THT offers a range of adiabatic and isothermal safety and reaction calorimeters.
Sumika Technical Information Service Inc. (STIS) was incorporated in 1978 as an independent research firm. Over the past 26 years, STIS has developed expertise in researching critical technical and economic information and in analyzing this information to benefit its clients. STIS offers professional consulting services that provide  concrete solutions to support its clients' research and business objectives.
Recently STIS and ArkosSoft entered into the distribution agreement and now STIS represents ArkosSovt services and TSS-ARKS software products on the Japanese market

Operating internationally, HEL is a company that specializes in research and pre-pilot scale chemical reactors and systems for clients in the pharmaceutical, fine chemical and petrochemical industries, as well as in academiaThe range of instruments and systems includes, specifically, reaction calorimetry, adiabatic calorimeters and LIB testing instruments. Qualified employees, modern production procedures, and chemical process equipment and technologies, as well as quality control, are the basis for HEL outstanding products and services.

CISP-ArkosSoft actively collaborates with HEL UK and its Beijing representative offive.

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    New monograph "Thermal hazards and thermal safety of energetic materials, chemical processes and objects.
    " by  A. Benin and A. Kossoy
    Attending the EDUG meeting and giving presentations
    Cooperation with HEL group