7.1 Requirements for Finished Product C7.1 Requirements for Finished Product
7.1 .I Product Tolerances - General C7.1.1 Product Tolerances - General
The tolerances listed in this Division shall govern
unless other tolerances are noted in the contract
documents for a specific project.
Tolemnces are divided into three categories: product tolerances,
erection tolerances and interfacing tolerances. See Appendix I
for erection tolerances.*
Tolerance is a specified permissible variation from exact requirements
of the contract documents. A tolerance may he expressed
as an additive or subtractive (i) variation from a specitied
dimension or relation or as an absolute deviation from a
specified relation. Tolerances should be established for the
following reasons: