phone: +31 10 4142612,
TEST-OK is located near to Rotterdam Central Station. For public transport informations please use this link to go the NS Travel planner.
Leave Central Station at the backside (Blijdorpzijde), go to the right on the Proveniersstraat, continue straight on, cross the Schiekade. Then after 150 meters you'll find TEST-OK on your left hand side (number 59B).
There is a tram stop located at the crossing between the Teilingerstraat and the Schiekade. Just follow the Teilingerstraat. After 150 meters you'll find TEST-OK on your left hand side (number 59B). For information about busses and trams please use this link to go to the online travelplanner.