The attached files include the audition requirements for solos and scales.  Pay close attention to the specific solos and sections required at the audition.  Also, note the scales required and the 1 octave or 2 octave requirement.

• Junior County Audition Requirements (PDF)
  Junior County Trumpet/Baritone TC Scales (PDF)
  Junior County Trombone/Baritone BC Scales (PDF)

• Senior County/District 10 Audition Requirements
  Sr.County/District 10 Trumpet/Baritone TC Scales (PDF)
  Sr.County/District 10 Trombone/Baritone BC Scales (PDF)

To check the speed of your scales, visit an online metronome at any of the following sites:

http://www.gieson.com/Library/projects/utilities/metronome/
http://www.metronomeonline.com/
http://webmetronome.com/
http://www.seventhstring.com/metronome/metronome.html