SAMPLING PROCEDURES FOR INSPECTION BY ATTRIBUTES – PART 3 : SKIP–LOT SAMPLING PROCEDURES (ISO 2859-3 : 1991, IDT)
This part of IS0 2859 specifies generic attribute skip-lot sampling procedures for reducing the inspection effort on products submitted by those suppliers who have demonstrated their ability to
control, in an effective manner, all facets of quality and who consistently produce lots which meet requirements. The reduction in inspection effort is achieved by selecting at random, with a specified
probability, whether a lot presented for inspection will be passed without inspection. This procedure
extends to the inspection of lots the principle of random selection already applied within IS0 2859-1
to the individuals comprising a lot.
Inspection may take place at the supplier’s or purchaser’s locations or at an interface between operations of a production process. The skip-lot procedures are designed to be used with the attribute lot-by-lot plans described in IS0 2859-1.
NOTE 1 The skip-lot procedures specified in this part of IS0 2859 should be distinguished from Dodge’s skip-lot pl