Ok found the info in regards to chaffs
https://info.publicintelligence.net/USArmy-ApacheLongbow.pdfPage 741
4.87.1 System Description. The M141 General Purpose Aircraft Dispenser (CHAFF) is an active ECM system designed to protect the helicopter from AAA, SAM,
and Airborne Intercept (AI) radar threats. The system can
dispense up to 30 chaff cartridges (MI) as a countermeasure against radar guided weapons systems. The chaff
system is basically composed of three components, the
dispenser assembly, the payload module, and the chaff
safety switch.
Just need to dig out some info on flares.
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Actually I might have answered my own question. If only one dispenser is fitted then the amount of chaffs and flares might be right = 30 however not sure if the same dispenser can have both chaffs and flares fitted...if it can would there be additional dispensers fitted during the mission.
Crap, shot myself in the foot with this one LOL