During Production Check (DUPRO)

During Production Check (DUPRO)

During Production Check (DUPRO) is an essential preventative measure taken in the early stages of production, which can mitigate costly mistakes in the long run by highlighting any problems before too many defective items are produced and avoid effecting the shipping schedule. Quality control inspectors of Testcoo usually perform on-site DUPRO inspections once a minimum of 30%, but no more than 50% of finished goods are produced to ensure consistent quality in the manufacturing process.

What is During Production Check (DUPRO)?

During Production Check (DUPRO) is an essential preventative measure taken in the early stages of production, which can mitigate costly mistakes in the long run by highlighting any problems before too many defective items are produced and avoid affecting the shipping schedule.

Quality control inspectors of Testcoo usually perform on-site DUPRO inspections once a minimum of 30%, but no more than 50% of finished goods are produced to ensure consistent quality in the manufacturing process.

Testcoo conducts AQL sampling based on ANSI/ASQC Z1.4 (ISO 2859-1) criteria and produces detailed inspection reports based on a defined AQL.

What are the benefits of during production check (DUPRO)?

During production check improves production processes and quality and ensure the product meets specification prior to release and shipment.

-Act an early warning signal to identify and rectify defects

-Managing your production schedule more effectively avoids delays in shipment.

-Avoiding monetary losses due to reworking and returned orders.

-Improving the quality of your products before mass produced.

-Increasing customer satisfaction that will be based on high-quality, on-time deliverables.

When should you consider a during production check (DUPRO)

This service is ideal for larger quantity shipments, product lines with continuous production, strict requirements for on-time shipments, and as a follow-up if poor results are found during Initial Production Inspection.

So a During Production Check is one of the best ways to ensure that your product meets your requirements. It keeps your suppliers in check, your orders ship on time, the products meet the regulation and, ultimately, ensures customer satisfaction.

A During Production Check aims to visual check on production schedule, verify production capacity and output, product quality, quantity, safety, function, labeling, marking, packaging, and other required parameters.


Testcoo will ensure that you start your production on the right footings and avoid any delays/defects before the mass production. Our Testcoo inspector will produce a full and detailed inspection report, together with a photographic record within 24 hours of the inspection allowing you to see the work undertaken. We have a global network of inspectors and can arrange your inspection within 24 hours of receiving your request.

Booking the Inspection and Audit Service by Yourself.