What are the 4 types of product quality inspection?
Introduction
Quality control is a series of measures taken by companies to ensure that their products meet established quality standards.
Details
What is quality control?
Quality control is the measures taken by a company to ensure that the products it produces meet international and domestic standards. Quality control as defined by ISO 9000: "Part of quality management that focuses on meeting quality requirements.
Quality assurance definition: Ensuring that a product or service meets specifications and requirements.
Quality compliance definition: Ensuring that product quality meets the rules set by relevant agencies.
What is product quality inspection?
Quality inspection is the process of verifying whether the quality of the inspected raw materials and products meets the specified standards. It is verified through various professional methods, including measurement, inspection, measurement and testing.
What Are the 4 Types of Product Inspection?
1.Initial Production Check
Initial Production Check (IPC) also called Pre-Production Inspection (PPI). Initial Product Check is done before the factory produces large quantities of products and after the materials are ready.

2.During Production Inspection (DPI)
During Production Inspection (DPI), also known as In-Process Inspection. During Production Inspection is widely used in the inspection process, especially as one important complementary solution of Pre-Shipment Inspection (PSI is good but sometimes it’s too late to correct or replace the big defects due to the problem of delivery delay).

3.Pre-Shipment Inspection (PSI)
PSI, abbreviation of Pre-shipment Inspection, is also called FRI (Final Random inspection) by some inspection companies. Pre-Shipment Inspection refers to an inspection carried out by the all the goods are produced and packed completely. By conducting a sampling test in accordance with the AQL standard, to have an overall assessment of the quality of the goods.

4.Fully Inspection (FI)
Fully inspection refers to a 100% inspection of the produced goods.

Nanjing Weproving Inspection, a third-party inspection service company integrating product inspection, factory audit and enterprise quality consultant.
Quality control is the measures taken by a company to ensure that the products it produces meet international and domestic standards. Quality control as defined by ISO 9000: "Part of quality management that focuses on meeting quality requirements.
Quality assurance definition: Ensuring that a product or service meets specifications and requirements.
Quality compliance definition: Ensuring that product quality meets the rules set by relevant agencies.
What is product quality inspection?
Quality inspection is the process of verifying whether the quality of the inspected raw materials and products meets the specified standards. It is verified through various professional methods, including measurement, inspection, measurement and testing.
What Are the 4 Types of Product Inspection?
1.Initial Production Check
Initial Production Check (IPC) also called Pre-Production Inspection (PPI). Initial Product Check is done before the factory produces large quantities of products and after the materials are ready.

2.During Production Inspection (DPI)
During Production Inspection (DPI), also known as In-Process Inspection. During Production Inspection is widely used in the inspection process, especially as one important complementary solution of Pre-Shipment Inspection (PSI is good but sometimes it’s too late to correct or replace the big defects due to the problem of delivery delay).

3.Pre-Shipment Inspection (PSI)
PSI, abbreviation of Pre-shipment Inspection, is also called FRI (Final Random inspection) by some inspection companies. Pre-Shipment Inspection refers to an inspection carried out by the all the goods are produced and packed completely. By conducting a sampling test in accordance with the AQL standard, to have an overall assessment of the quality of the goods.

4.Fully Inspection (FI)
Fully inspection refers to a 100% inspection of the produced goods.

Nanjing Weproving Inspection, a third-party inspection service company integrating product inspection, factory audit and enterprise quality consultant.
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