Inherent properties of elastomers such as elasticity which allows good sealing properties, low gas and water permeability, excellent oil resistance and a low level of migrating substances from rubber products are relevant for the application of NBR rubbers in food, water, pharmaceutical and cosmetic products. Stringent regulatory requirements are relevant for that field of application. The essential parts of the most important regulations like the US FDA CFR 21 parts 177-199, the German BgVV Recommendation XXI, the relevant French, British and European regulations are reviewed. The important role that Perbunan has in the production of seals and gaskets for food containers, milking inflation (liners) and for the fast growing aerosol gasket industry is discussed in detail.