Quality inspection Sampling Standard

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Quality inspection Sampling Standard
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• After deciding the sample size based on
  inspection standard and AQL tables, here we need
  to choose the number of products to check.1.
  Select the right quantity of cartonsAt least
  the square root of the total number of
  cartons(Example at least 8 cartons if there is a
  total of 63 cartons.), or otherwise defined by
  client, in the shipment are randomly selected and
  opened. The inner content is checked for correct
  quantity and assortment. The samples are selected
  proportionally from the opened cartons. If the
  sum of opened cartons can not give the sufficient
  number of sample size, cartons should be opened
  until the quantity is met.2. Randomly select
  the cartons from the palletsSelect the cartons
  randomly, for example, from the front and back,
  top and down, right, let and inside of the
  pallet, not just from the same position of the
  pallet.

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If the goods are not 100 packed, also need to
select some samples from the unpacked products
according to the ratio of packed and unpacked
pieces. For example, if there are 200 pcs among
4000 to be inspected, and there are just 3000pcs
packed into cartons, and 1000pcs ready to be
packed, have to select 150 pieces from packed
cartons and 50 unpacked pieces. 3. Randomly
select the products from selected cartons During
the selection of products from cartons, need to
randomly pick up the pieces, for example, from
each layer or each poly bag of product, to
represent the real product quality situation as
maximum as possible.
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