Fig E Datum Selections

in the diagrams. When datums are applicable, the user is referred to Fig. E-7.

E7.1 Datum Modifiers. When a feature of size has been selected as a datum, a material condition modifier must be considered. See Fig. E-7 and para. 2.8.

E7.2 Multiple Datums. Some applications require only a primary datum, while others may need secondary and tertiary datums. When more than one datum is needed, the diagrams loop back until the datum reference framework is complete. See Fig. E-7.

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