BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20180416T000000Z DTEND:20180416T000000Z SUMMARY:RSC-NPL Symposium: Nanoparticle concentration – critical needs and state-of-the-art measurement: Standard registration deadline due before 16th April 2018 LOCATION:The 91AV,London,United Kingdom END:VEVENT END:VCALENDAR