1.1 This specification covers gaskets cut from sheet rubber that are intended for general gasket applications on water, air, and low-pressure steam. They are not intended for use with oils and strong acids. 1.2 The values This specification covers gaskets cut from sheet rubber that are intended for general gasket applications on water, air, and low-pressure steam. The rubber sheet gasket covered by this specification are not intended for use with oils and strong acids.