While ISO 1101 is not a "coffee standard" itself, it is critical in the manufacturing of high-precision coffee equipment where exact dimensions and alignments impact performance. Key Components of ISO 1101 Geometrical Tolerancing:
| Tolerance symbol | What it controls | Example | |------------------|------------------|---------| | (∥) | Surface or axis is parallel to a datum | Grinder burr face parallel to motor mounting plate | | Perpendicularity (⊥) | Surface or axis is at 90° to a datum | Shaft perpendicular to bearing housing face | | Angularity (∠) | Surface or axis is at a specified angle to a datum | Angled inlet port on a grinder hopper | iso 1101 pdf coffee