The Fundamental Parameters for PRECIOSA Seed Beads

The fundamental parameters for PRECIOSA seed beads according to company standard PN 3890.
Preciosa Ornela, a.s. offers a set of useful information which should help customers to orient themselves better when choosing from the company’s wide range of seed bead types and sizes.

This document includes information concerning the size designations of the basic PRECIOSA seed bead types and their conversion to millimetres, including the measurable size tolerances.

The internal hole diameters, which are specified separately for opaque and transparent colors, are mainly used for designating the size of the appropriate needles for stringing or sewing the beads.

The basic sales unit for PRECIOSA seed beads is the kilogram. The conversion of this weight unit to an approximate expression of the amount of beads in 1 kg has been supplemented with the calculation of the amount of items in 1 pound.