ST. PAUL— Stringent standards barring the use of electronic cigarettes in places where regular tobacco isn’t allowed prevailed Thursday in the Minnesota Senate, which turned back an attempt to pare down proposed regulations.

The approach endorsed Thursday by a 35-28 margin goes further than a House companion bill, so the two measures must be reconciled for any e-cigarette regulations to become law. It would equate e-cigarettes with standard smokes and classify the new devices under the state’s indoor air law.

E-cigarettes are devices that heat a liquid nicotine solution that users inhale, a habit referred to as “vaping.”