General Rules for Tolerance of Preforms

Minimum tolerances of diameters (outside and inside)

< .100"                        +/- .001"

.100" - .200"                +/- .002"

.200" - .350"                +/- .0025"

.350" - .500"                +/- .003"

.500" - 1.000"              +/- .004"

1.00" and up                +/- .005"

Length tolerance is a minimum +/- .002"

Weight tolerances

0 mg - 7 mg               mean +/- 5%

7 mg - 500 mg            mean +/- 2.5%

500 mg and up            mean +/- 2%

(tolerances maybe adjusted up or down depending on circumstance)