All-Inclusive - Quality Control Services Starting from $190

What is A During Production Inspection?

Quality Control in China and across Asia

During Production Inspection

During Production Inspection (DUPRO) is an essential element of supply chain management that can take place at any stage of production, typically when production reaches 20% and 80%.

During Production Inspection involves selecting and assessing random units from all production batches to make sure your factory is adhering to original specifications and also ensure production is on schedule. A DUPRO keeps your production on the right track. 

Tetra Inspection inspectors will visit your vendor’s site to conduct a physical inspection of goods on randomly selected samples of manufactured products using the statistical sampling procedure commonly know as AQL or ISO 2859-1 (ANSI/ASQ Z1.4).

What Do We Check During A DUPRO?

  • Production status.
  • Finished and semi-finished products.
  • Quantity.
  • Product conformity to specifications.
  • Workmanship.
  • Packaging, marking, and labelling.
  • Measurements, weights, and GSM.

Carton drop test (ASTM D5276), Function test, Color fasten test, Adhesive test (ASTM D3359-02), Abuse test, Resistance test, Hi-pot test, Internal check

Dry rub test
quality assurance

Why You Need During Production Inspection

This service will help you:

  • find issues at an early stage, giving you the opportunity to fix them before it’s too late;
  • verify that your supplier is on schedule;
  • avoid business losses due to costly reworks;
  • save time and money by solving problems before shipment;
  • improve quality by taking immediate corrective actions with your supplier(s);
  • guarantee high customer satisfaction because you’ll only ship high-quality products;
  • protect your brand and reputation; and
  • monitor your supplier's performance.

High Integrity

Product Experts


Cost Effective