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What is ISO 8015 Tolerancing Methods Explained about?
This document discusses two methods for unambiguously tolerancing linear and angular sizes on technical drawings: 1. ISO 8015 uses ± tolerances and an envelope requirement, where the tolerance zone is defined between two parallel planes. 2. ISO 286-1 and ISO/R 1938 use a tolerance code without defining the tolerance zone, resulting in specification uncertainty if used for new drawings. It recommends using geometric tolerances instead of ± tolerances to avoid ambiguity, as ± tolerances do not define the
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- hnkaushik
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- EN