ISO 10303-214:2010(E)
A Significant_number_of_digits is an entry in a Tolerance_table_cell representing the range of applicability of a tolerance value by specifying the presented number of digits.
The number of digits used for the dimension determine which default tolerance entry in the general tolerance table is valid for this particular dimension
The data associated with a Significant_number_of_digits are the following:
number_of_digits
The number_of_digits specifies the significant number of digits used for a dimension specification of a part.
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