Document ppBgndoyy6LaKNJzgJGVDLJ06

DESIGH PROCEDURE 6-37 Bad 3 Good 2 Bod Branches should enter at gradualexpansions endat an angle of30or less (preferred) to 45 ifaccessory. BRANCH ENTRY Bod Branches should not enter directly opposite each other. AMERICAH CONFERENCE OF . governmental INDUSTRIAL HYGIENISTS PRINCIPLES OF DUCT DESIGN oat! T-66 M Fig 6-20 SPNY 001313