Our specialty gas mixture product classes are designed to give customers basic insights into some of the science behind the products they buy, and also to help them select the most appropriate and cost-effective product for their application. Unfortunately, not all specialty gas producers use the same terminology uniformly, nor do the same terms necessarily mean exactly the same thing to all manufacturers. Air Liquide has set many standards in today’s specialty gas technology. Towards that end, and to avoid confusion, the definitions of our specialty gas terms are as follows :