The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From NACE International, The Corrosion Society:
The NACE International Corrosion App is the official app created by the worlds leading authority on corrosion control, NACE International, The Corrosion Society. This app provides tools for corrosion industry professionals such as Conversion Charts , Corrosion Calculators including Ohms law and various coatings calculators, a searchable directory of NACE International Institute Certification holders worldwide, Career Center access, NACE publications, an event calendar, and member access to update personal profiles. Representing tens of thousands of members in more than 100 countries, NACE International offers the worlds most specified technical training and programs, conferences, industry standards, reports, publications, and software to prevent and mitigate corrosion. The NACE International Institute offers a certification program comprised of over 23 corrosion-specific certifications. The organizations mission is to protect people, assets and the environment from the effects of corrosion.