Level

This standard prescribes minimum mandatory requirements governing the
design of process level measurements, alarming, automatic tank gauging
systems and mass measurement of hydrocarbon liquids. Sections 5 through 12 of this Standard are not intended to be an exclusive listing of types of level instruments. When engineering considerations so dictate, other types may be used. The approval requirements prescribed in SAES-J-002, Paragraph 2.2 shall apply.