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China's Product Inspection Guide: Ensuring Quality and Compliance



Since China has competitive manufacturing and cost-effective production, it is a popular destination for sourcing products. Quality control can be difficult, however, when dealing with suppliers located thousands of miles away from you. To assess a product's quality, workmanship, and compliance with specifications, quality inspections are an essential tool.


Our aim in this article is to provide you with valuable insight into the product inspection process in China and what it entails. So, let's get started!

What are the benefits of Chinese product inspections?

The process of product china inspection company is one of the most important quality control processes. In addition to confirming that the products meet the required quality, safety, and regulatory standards, these inspections also confirm that they meet the buyer's specifications and requirements.


For businesses, product inspections in China are crucial for the following reasons:


Prevents the risk of receiving low-quality products by verifying the sourced products meet quality standards and identifying issues or defects before shipping.


Check whether your products comply with local and international regulations, certifications, and standards, such as ISO, CE, RoHS, FCC, and REACH, depending on the type of product and the applicable regulations in your region.


Even though product inspections in China may increase procurement costs, they can be cost-effective in the long run. Your business can avoid costly rejections, returns, recalls, and customer complaints by identifying and rectifying quality issues and defects early in the production process.

China's Product Inspection Types: What Are They?

There are several categories of product inspections, each with a distinct role in the supply chain, ranging from inspections conducted prior to production, inspections conducted before shipment, and supervision during container/unloading processes. The following sections will give you a closer look at them.

PPI (Pre-Production Inspection)

Pre-Production Inspection (PPI) occurs before the manufacturing process begins to ensure that all materials and components comply with the specifications specified in the purchase order and to identify any problems as early as possible.


A quality audit focuses on product specifications, material quality, and production processes, including checking the factory's facilities and equipment to ensure they meet safety, environmental, and quality standards.

During the Production Inspection (DPI)

An “In-process Inspection” or “During Production Monitoring” is a quality inspection conducted during the production process to verify if products are being manufactured in accordance with approved samples, specifications, and quality standards. To identify and rectify quality issues or deviations from requirements, inspectors usually check products at various stages of production, including raw material processing, assembly, and packaging.

The final random inspection (PSI)

When 100% of the order is finished and at least 80% of the goods are packed for shipment, a Final Random Inspection, or Pre-Shipment Inspection, is performed. This type of inspection focuses on checking the finished products against pre-agreed quality standards and specifications.


The inspector will select a statistically significant sample size from the finished product and thoroughly inspect it to ensure that it meets the buyer's specifications, quality standards, and regulatory requirements.

CLS (Container Loading Inspection)

An inspection of the loading process of the products into shipping containers is also known as “Container Loading Supervision” or “Container Loading Check,” to ensure that they are packed, handled, and loaded properly to prevent damage during transit. A container's capacity is optimally loaded, and inspectors ensure that the products are properly secured.

China Factory Inspection Process

Inspecting China factories is one way to ensure quality control (QC) and product consistency. On-site inspections are typically conducted after supplier audits, and involve evaluating products based on several criteria.


As part of HQTS's quality assurance process, we evaluate quantity, workmanship, style, color, and documentation, field testing and measurement, shipping marks, and packaging.


Each inspection will have its own content and special attention points based on the product category and the client's requirements. Below, we'll expand on each criterion in more detail.

Verification of quantity

Quantity verification is an important aspect of the China factory inspection process. As a result, it is possible to count a sample of products or weigh them. It may involve different methods, such as counting a sample or using weighing scales.

Quality of work

One of the key areas of focus during a China factory inspection is workmanship. During the inspection, the inspector will examine the product's construction, functionality, visible defects, and determine whether the products meet the quality standards specified. Variations and inconsistencies may indicate poor workmanship/quality.

Documentation, style, and color

A product inspector examines a product's shape, structure, color, and overall aesthetics. Additionally, he or she may examine product specifications, assembly instructions, or testing reports.



Tests and measurements in the field

It is generally important to measure and verify the dimensions of the tool using measurement tools, such as calipers and gauges, during field testing and measurement. In addition to verifying if the product works according to its intended use, we also check the material composition, hardness, strength, flexibility, or other properties to ensure they meet the required standards. Click here

Marks and packaging for shipping

An inspector will make sure the shipping marks are accurate, complete, and meet the requirements. In addition, the inspector will check that the packaging is high quality and that the supplier adheres to the label specifications.

In conclusion

Product inspections play a crucial role in protecting your company's brand reputation, ensuring product quality, and reducing costs in China. You can effectively mitigate risks and maintain high standards by conducting quality control inspections at different stages in the supply chain.


Please do not hesitate to contact us if you have any questions about factory inspections in China. We are a CNAS ISO accredited inspection and quality control service company, specializing in comprehensive and reliable inspections.

Creation date: Dec 16, 2023 7:14pm     Last modified date: Dec 16, 2023 7:15pm   Last visit date: Jul 24, 2024 10:02am