3.2 CLEANROOM ENVIRONMENTS The standard service temperature, humidity and cleanliness environments during various processing phases are provided in Table 3-1. Conditioned air will only be disconnected for short durations (generally between 30 and 60 minutes) during predetermined operations such as movements, lifts, and rollout to the pad. Payload environmental temperatures will be maintained above the dew point of the supply air at all times. The SpaceX supplied mechanical interface and fairing surface are cleaned to VC-HS. Table 3-1: Temperature and Cleanliness Environments Phase Control System Temp CF) Humidity Cleanliness (class) Payload Processing PPF HVAC 21 ± 3 (70 ± 5) CCSFS/KSC: 45% ± 15% VSFB: 50% ± 15% 100,000 class 8) or better Propellant Conditioning and Loading Facility HVAC Transport to Hangar (CCSFS/KSC only) Transport trailer unit 25% to 60% Encapsulated in Hangar Ducted supply from standalone HVAC unit or transport trailer unit if required) CCSFS/KSC: 45% ± 15% VSFB: 50% ± 15% Encapsulated Roll-Out to Pad None (transport trailer unit if required) No Control System No Control System Encapsulated on Pad Vertical or Horizontal) Pad air conditioning Bulk air temperature will remain between 10 and 32 (50 to 90), targeting 21 (70) 0% to 65% Note 1. Payload fueling is available as an optional service (see Appendix I) and is not part of the standard Rideshare services. 2. Supply air is switched to GN2 during the Launch Countdown sequence.