ENVIRONMENTAL TECTONICS CORPORATION >>>>>NEWS RELEASE<<<<<

SOUTHAMPTON, Pa., May 10 /PRNewswire/ -- Environmental Tectonics Corporation (Amex: ETC) a global technology and systems provider, and Scientific Software, Inc., a world leader in scientific systems, announced today that they have entered into a strategic business alliance.

Under this agreement, ETC will develop and market end user applications based on Scientific Software's CyberLAB Knowledge Engineering System(TM). ETC will market these integrated solutions to the medical, publishing, pharmaceutical manufacturing, aviation, and automotive markets. ETC is a technology leader in these markets, providing systems such as sterilization, entertainment, Hyperbaric Oxygen Therapy, aircrew training, and environmental simulation. In addition, ETC will be the exclusive dealer for CyberLAB KES in Turkey and the Middle East markets.

This agreement also calls for Scientific Software to co-develop new software technologies with ETC, utilizing ETC's development centers in Turkey and Poland. ETC will also provide systems integration, management, validation and consulting services to Scientific Software's CyberLAB customers in the U.S. and European markets.

"We have experienced tremendous interest and sales of our CyberLAB KES product in our traditional laboratory markets," said Soheil Saadat, president and chief executive officer of Scientific Software, Inc. "This partnership with ETC now positions CyberLAB into new market areas which will be a significant source of growth for the Company. The development capabilities of ETC also enable us to develop new customer solutions."

"ETC is currently a technology and software leader in our core markets," said William F. Mitchell, President and CEO of ETC. "We can now provide additional value to our customers through this partnership. We see the capabilities of CyberLAB allow it to be used in any market that requires the integration of information and knowledge. It is an excellent platform to build the new applications our customer's require." About Environmental Tectonics Corporation

Environmental Tectonics Corporation (Amex: ETC) is a 32-year-old technology service provider. ETC designs, develops, installs and maintains aircrew training systems, public entertainment systems, process simulation systems (sterilization and environmental), clinical hyperbaric systems, environmental testing and simulation systems, and related products for domestic and international customers. The ETC-IS Group, a subsidiary of ETC, provides software engineering and development, inter/networking, implementation, staffing, outsourcing, systems integration and program management services. With customers in over 60 countries worldwide and software development operations in the United States, Poland and Turkey, ETC-IS provides quality Information Technology solutions to industry, governments, and research organizations. More information on ETC can be obtained at www.etcusa.com. About Scientific Software

Scientific Software, Inc. is a world leader in the development, sale and support of software systems to the scientific community. With over 40,000 worldwide installations, the Company's award-winning EZChrom Elite(TM) chromatography data system is used in a wide range of markets such as pharmaceutical, environmental, chemical, and food analysis. With the introduction of CyberLAB, the industry's first Knowledge Engineering System(TM), the Company is now providing enterprise-wide solutions for information collaboration, data management, regulatory compliance and knowledge engineering.

Scientific Software, Inc. is based in Pleasanton, California. Further information about Scientific Software, Inc. and its products is available at www.scisw.com or at 1-800-588-8878.

Certain matters in this press release are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. These include, but are not limited to, market acceptance of new products, competitive actions, economic conditions, and other risks indicated in filings from time to time with the Securities and Exchange Commission.

CONTACT: Duane D. Deaner, CFO of Environmental Tectonics, 215-355-9100, ext. 1203, or fax, 215-357-4000, or ddeaner@etcusa.com