This has reference to your email on the test report.
This test report is based on the Invoice not on the Lot
Each Lot is about 300 tons, thus our QC checks regularly, this same lot goes to different customer, apart from that the yarn properties are checked before Twisting/ After Twisting and all are internal record kept Lot number to Lot number.
For the packages after winding, all the packages are individually measured physically by Vernier during the winding process and also in the packing section. Out of which finally when the goods are ready against each Invoice, random 5 samples are tested as pre shipment, which are given to customer as per the format required.
Hope it clarifies, if you need internal testing record we can share but it is different format.