Pirelli get to select 20 of the sets that a team will use, while the teams can request 15 of their own choice. Any sets of tyres not used at the previous Barcelona test can carried forward and used this week.
Barcelona is a popular choice for testing, as it represents the best 'everyman' circuit available to teams trying to find a good car that will work across the entire season.
Just under 60 per cent of the lap is spent at full throttle, with the cars at top speed for around 16 seconds on the straight. A medium- to high-level set-up is required, with high tyre and brake wear usually the case on the abrasive Circuit de Catalunya track surface.
The track will also be used for the Spanish Grand Prix May 12, so the teams are able to get a jump start on race strategy: Pirelli estimates that the tyre wear will lean toward a two or three stop strategy for the race, a performance outcome in line with the requests of the teams and FIA.
Pirelli added that even though the initial data collection process was hampered by cold weather last week, they were happy that all the initial indications point to this being the case for Spain's Grand Prix.