Here's the information I was referring to, under "Security and Service Standards at Check In" under "Check In":
Security and service standards at Check In
Flights to USA and Flights from or via U.K.
Due to increased security measures for flights to/from US passengers are allowed to take one piece of hand baggage (not exceeding 55x40x23cm) on board an aircraft.
You may bring along on board:
pocket size wallets and pocket size purses plus content, travel documents (passport, tickets), personal medical supplies required for the flight as well as prescription medicine with a name that matches the passenger´s ticket, essential other non-prescription medicines not exceeding 120ml per container, liquids or gels for diabetic passengers who indicate a need for such items to address their medical condition (up to 148ml per container), spectacles and sun glasses without cases, contact lens holders, neutral salt solution, sanitary items sufficient and essential for the flight, keys (no electronical key supplies), food and milk for babies and small children as well as solid foods (also fruits, sweets, except foodstuff in tubes) and solid cosmetics.
Please note: you are also allowed to carry liquids, sprays or gels with you (up to 90ml per item). Those items have to fit in a reclosable and transparent 1litre plastic bags and will be checked seperately at security control. Austrian Airlines is providing such plastic bags at the departure gates.