During Production Inspection
“On-site quality control during manufacturing to verify products meet specifications at every stage, catching defects early.”
Tetra Inspection
“Tetra Inspection is an independent third-party quality control company founded in 2014, providing pre-shipment inspection, during-production inspection, container loading checks, factory audits and supplier verification across 44+ countries.”
Products & services
Factory Audit
“Comprehensive evaluation of manufacturing operations, verifying adherence to ISO 9001 standards and quality management systems.”
Questions & answers
What is third-party quality control?
“Third-party quality control is an independent inspection service performed by a company that has no financial relationship with either the buyer or the factory. Unlike factory self-inspections, third-party inspections provide unbiased, objective assessments of product quality, ensuring that goods meet your specifications and comply with international standards before shipment.”
How much does a product inspection cost?
“A standard product inspection with Tetra Inspection starts at $240 per man-day in Asia & Africa ($340 in South America & Turkey, $540 in Europe). This all-inclusive rate covers a full day of inspection at the factory. Subscription plans reduce the cost further — $189/man-day on Monthly or $158/man-day on Annual.”
How quickly can you arrange an inspection?
“In most major manufacturing regions — including China, India, Vietnam, Turkey, and Bangladesh — we can arrange an inspection within 48 hours of booking confirmation. For urgent requests, same-day or next-day scheduling may be available.”
What is AI quality inspection?
“AI quality inspection uses computer-vision and machine-learning tools to assist trained inspectors — flagging visual defects, classifying findings, and structuring report data — while a qualified human inspector verifies every flag and makes the final accept-or-reject decision. It combines automated speed and consistency with human judgment and on-site verification.”
Does AI replace the human inspector?
“No. Our approach is human-in-the-loop: AI tools augment the inspector by speeding up visual screening and structuring data, but a qualified inspector selects the sample, performs functional and dimensional checks, verifies every AI flag, and owns the final verdict. Automation is not reliable enough to own a quality decision across the variety of products and defects in global manufacturing.”
Can AI inspection be used with pre-shipment or during-production inspections?
“Yes. AI-assisted inspection can be applied to any service, including pre-shipment inspection, during production inspection, and initial production check, and it pairs well with ongoing production monitoring for defect-trend analytics across a full run.”
When is the best time to schedule a During Production Inspection?
“The ideal time is when 20–60% of the order has been produced. At this stage, enough units are completed to identify trends and defects, but there is still time to implement corrective actions for the remaining production.”
How is a DPI different from a Pre-Shipment Inspection?
“A DPI is conducted mid-production (20–60% complete) to catch issues early, while a PSI is done when 80%+ is finished and packed. A DPI gives you the opportunity to fix problems before they affect the whole order; a PSI is the final quality gate before shipping.”
Is a DPI necessary if I already plan a Pre-Shipment Inspection?
“For high-risk orders — first-time suppliers, complex products, or large quantities — a DPI is highly recommended even if a PSI is planned. It reduces the chance of discovering major issues at the PSI stage when corrections are more costly and time-consuming.”
How long does a factory audit take?
“A standard factory audit takes one full day (one man-day). For very large factories, multi-site facilities, or audits with expanded scope (e.g., combining quality and social compliance), additional man-days may be required.”
What does a factory audit mean?
“A factory audit means an independent, on-site evaluation of a manufacturer's production capabilities, quality management systems, and operational practices. It answers whether a factory can consistently produce your product to the required quality, volume, and compliance standards — before you place an order.”
What is the factory audit process?
“The factory audit process runs through five stages: (1) scope definition, (2) an opening meeting with factory management, (3) a full facility and production tour, (4) a documentation and records review against ISO 9001, and (5) a closing meeting with a scored report delivered within 48 hours. A standard audit takes one man-day.”
How much does a factory audit cost in Vietnam?
“Factory Audit in Vietnam starts from $240 per man-day. The final cost depends on factory location, product complexity, and the number of SKUs to inspect. Request a free quote for an exact price tailored to your order.”
How quickly can you arrange a factory audit in Vietnam?
“We can typically schedule a factory audit within 24–48 hours of booking confirmation. Our inspectors are based across Ho Chi Minh City, Hanoi, Binh Duong, Dong Nai, and Hai Phong, enabling rapid response times for most factory locations.”
What products do you inspect in Vietnam?
“In Vietnam, we inspect a wide range of products including textiles and garments, footwear, furniture, electronics assembly, and seafood processing. Our inspectors have industry-specific expertise and use customized checklists tailored to each product category.”
What standards do your inspectors follow for factory audit in Vietnam?
“Our inspectors follow internationally recognized AQL sampling standards (ANSI/ASQ Z1.4 / ISO 2859-1). Defects are classified as critical, major, or minor. We also verify compliance with relevant Vietnam standards and your destination market requirements.”
Data formats & record details
Download this profile and inspect its supporting evidence.
- Entity ID
- urn:readyscan:entity:tetra-inspection-q138819715
- Material fingerprint
- fnv1a64:3a08be09da11f677
- Entity revision
- fnv1a64:b4b779e744a7779c
- Published
- 2026-10-27
- Modified
- 2026-10-27
- Source summary
- Tetra Inspection: “Tetra Inspection is an independent third-party quality control company founded in 2014, providing pre-shipment inspection, during-production inspection, container loading checks, factory audits and supplier verification across 44+ countries.”