Access to the Crown Lounge at Schiphol during Renovations
Found this:
As of 1 June 2017 until March 2019 from 07:30 to 11:00 hours (peak hours) the following entry rules apply:
* Lounge vouchers are not accepted.
* Staff and Duty travel customers are not accepted
* Guests of Flying Blue Platinum and Flying Blue Gold and SkyTeam Elite Plus members are only accepted outside peak hours
* Guests of Ultimate, Skipper and C2000 customers are accepted
* Customers travelling to a Schengen destination can make use of the KLM Schengen Crown Lounge (25) instead.