Tubed/Sticked Components

Anyone know about existing standards on components supplied in tubes? Such as SO8s & SO14s should come in Xmm width tube etc. Right now I have 3 separate SO20W type part numbers coming in 3 different size tubes. Would like to be able to tell my suppliers to use a particular size but don't know of any specs. Reels seem fairly straight foward and JEDEC has tray specs.

Dick Casagrande

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