|
|  |
Inspection Sampling Process
Identify the number of products to be inspected according to the AQL table (Single Sampling Plan for normal inspection), then follow the below process to do the sampling:
1. Randomly select the cartons from the pallets
Select 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.
If the goods are not 100% packed, also need to select the samples from the unpacked products according to the ratio of packed and unpacked pieces.
For example, if there are 200pcs among 5000 to be inspected, and there are just 4000pcs packed into cartons, and 1000pcs ready to be packed, have to select 160 pieces from cartons and 40 unpacked pieces.
2. Select the right quantity of cartons
The number of cartons to be selected is at least the square root of the total number of cartons.
If this number of cartons is not enough used to pick the required number of products, then a bigger number of cartons will be selected to inspect the correct number of pieces.
3. Randomly select the products from selected cartons
During the selection of products from cartons, need randomly pick up the pieces, for example, from each lay or each poly bag of product, to represent the real product quality situation as maximum as possible. |